Hybrid intent page (tool + report)

12V rotary solenoid checker with evidence-backed selection boundaries

Looking for a 12v rotary solenoid? This canonical page merges that alias into one decision flow: run the checker first, then use the report layer to validate method, risks, and procurement readiness.

Run checker now Send RFQ precheck

Published May 19, 2026 · Reviewed May 19, 2026 · Next scheduled review November 19, 2026

Tool-first + report-depth architecture

One URL, one canonical decision flow, no duplicate alias route.

Input reliabilityResult interpretationRisk-controlled action

Tool Layer

Run the 12V rotary solenoid fit checker first

Input measured values, validate pass/boundary/fail logic, then use the report layer for evidence-backed decision confidence.

Tool-first check

12v / 12 volt rotary solenoid fit checker

Validate voltage window, torque-at-angle margin, duty-cycle fit, and switching-frequency boundary before releasing a 12V rotary solenoid RFQ.

Quick presets

Start with a preset, then replace values with the exact part and mechanism data.

A 12V label does not prove torque-at-angle or duty-cycle fit.
Mechanical stop angle and load torque can fail even with clean electrical margins.
Switching-frequency and duty limits are hard gates for thermal stability.
Bistable behavior still needs validated pulse strategy and end position verification.
Lifetime-cycle curves are not calculated here and must be confirmed with supplier test conditions.

Measured min voltage (V)

Measured max voltage (V)

Datasheet min voltage (V)

Datasheet max voltage (V)

Target angle (°)

Datasheet max angle (°)

Required torque (Ncm)

Catalog torque at angle (Ncm)

On-time (ms)

Off-time (ms)

Published duty limit (%)

Ambient temperature (°C)

Required switching frequency (cycles/min)

Datasheet frequency limit (cycles/min)

Drive architecture

Return mechanism

Architecture notes

Preferred for many 12V rotary solenoid use cases where pull-in current and hold heating must be separated.
Can hold in end positions without continuous current when the mechanism and pulse control are matched.

Need hold position without continuous power?

End-position sensing available?

Result + next action

Decision output

The checker returns pass, boundary, needs-data, or fail with explicit recovery guidance.

Empty state: run the checker to see decision status, margin metrics, and required next steps.

Inconclusive path

If your output remains unresolved, keep one canonical path and use this page as the evidence ledger:12v rotary solenoid canonical guide.

Not covered by calculator

- Lifecycle evidence under your exact load inertia and shock profile.
- End-position repeatability under long-run thermal drift.
- Mechanical wear and backlash trend over full target cycle count.

Assumption model used by this checker

- Pass status is screening-only and still requires part-level proof.
- Torque data should match required angle and duty condition.
- Duty and switching-frequency limits are treated as hard release gates.
- Unknown drive/return architecture remains unresolved by design.

Tool layerActionable output

Report Summary

Core conclusions and key numbers

These conclusions answer alias and canonical intent together, with explicit numbers and assumptions for decision quality.

Alias and canonical intent are handled on one URL

12v rotary solenoid -> rotary solenoid

This page explicitly answers 12V intent while preserving one canonical route, reducing duplicate-content risk and consolidating decision context.

Voltage window is a gate, not a metadata detail

Typical screening baseline: 10.8-14.4 V for 12V class examples

Measured rail behavior must fit the exact part-number window before angle or torque claims are trusted.

Torque must be checked at your target angle

Use torque-at-angle values, not generic headline torque

Catalog curves can degrade across angle and duty. The checker treats angle-specific torque mismatch as a hard fail.

Duty and switching frequency are thermal control levers

Published duty classes span 15%, 25%, and 100% depending on variant

A setup that exceeds published duty or switching limits is rejected even if voltage and static torque look acceptable.

Drive architecture changes outcome quality

Peak-and-hold and pulse strategies reduce thermal risk

Unknown or oversimplified drive architecture is treated as unresolved by default, not auto-approved.

Result output always includes next action

Pass / boundary / needs-data / fail with recovery path

The tool layer is action-oriented: every output tells procurement or engineering what to do next.

Direct answers for do + know intent

Use these rows when you need a fast answer before deeper implementation details.

Question	Short answer	Why it matters
Is "12v rotary solenoid" a separate URL intent from "rotary solenoid"?	No. It is an alias modifier and should resolve to one canonical decision page.	Separate pages would split relevance and create near-duplicate risk for the same buyer workflow.
Can a 12V label alone approve a rotary solenoid for release?	No. You still need torque-at-angle, duty-cycle, switching-frequency, and drive-strategy evidence.	Most field failures originate in hidden mechanical or thermal boundary gaps, not in missing nameplate labels.
If voltage margin passes, can torque-angle checks be skipped?	No. Torque-at-angle mismatch is a hard fail condition.	Electrical margin cannot compensate for mechanical under-capacity at required angle and load inertia.
Do bistable claims remove all validation work?	No. Pulse strategy, reset behavior, and end-position repeatability still require evidence.	Bistable architecture can reduce hold power, but misapplied pulse logic still causes positional instability.
What should happen after a pass output?	Lock supplier evidence package: torque-angle curve, thermal rise, cycle-life condition, and acceptance test profile.	Pass is an engineering screen, not final production certification.

Key numbers and dated context

These are decision-support references, not universal constants.

Signal	Number	Why it matters
Kendrion CDR030 rotation-angle options (example family)	25°, 35°, 45°, 95° options listed on public page	Use this as a family example, not a universal value. Angle capability varies by exact variant and stop geometry.
Kendrion CDR030.000045 data sheet snapshot (published March 12, 2026)	15% ED, ~20 ms switching time, max 14,000 switching cycles per hour	This is a strict variant-level envelope and cannot be generalized to every 12V rotary solenoid.
Kendrion D 74 BOR-F 24V DC 100% ED listing (reviewed May 19, 2026)	100% ED, 13.6 W nominal power, thermal class B 130, IP40	Shows that duty class depends on exact part construction, not on a generic rotary-solenoid label.
Kendrion BSM043 family variance (reviewed May 19, 2026)	BSM043.000001 lists 100% ED at 10 W, while BSM043.000003 lists 50% ED at 17 W	Even within one family code, housing and sensing variants can shift duty and power limits.
Johnson Electric 3B data sheet (date code 7-3-23)	Max duty 25%, max on-time 1 s, standard life 500,000 cycles at 20°C	Life and duty claims are explicitly condition-bound and should be copied with the same test context.
Johnson Electric 4E data sheet (date code 4-13-23)	Max duty 25%, max on-time 10 s, standard life >25 million cycles at 20°C	Lifecycle capability can differ by orders of magnitude between frames; model selection cannot rely on voltage only.
TI TIDU578A thermal drift example (revised November 2014)	Pickup-voltage example rises from 9.6 V to 10.36 V when coil shifts from 20°C to 40°C	Measured hot/cold rail window is mandatory because temperature shifts can consume startup headroom.
DRV110 controller operating range	6 V to 15 V supply range (datasheet)	Shows why drive architecture should be explicit in 12V designs where pull-in and hold current are separated.
DRV110 programmable peak current	Up to about 1.2 A programmable peak current	Peak-hold strategy can widen startup reliability while controlling thermal load.
Automotive 12V transient reality	Public transient guidance confirms wide disturbance conditions around nominal 12V systems	Measured rail window should be used instead of nominal-only assumptions for vehicle-adjacent deployments.
OSHA electrical acceptance baseline	US workplaces still require documented electrical safety approach for final equipment integration	Below-50V logic does not remove system-level acceptance and safe-integration obligations.

Audience Fit

Suitable vs not-suitable audience map

Use this table to decide whether this checker can drive your next release step or whether you need an alternate path first.

Audience profile	Fit status	Reason
12V actuator path with known rail measurements and torque-angle data	Suitable	Checker outputs can drive first-stage go/no-go decisions and RFQ precheck with explicit margin metrics.
Designs requiring hold without power but with spring-return hardware	Not suitable without architecture change	Requirement and mechanism are incompatible. Bistable or external latch strategy is required.
High cycle-rate duty with unknown driver strategy	Boundary / needs-data	Without explicit drive architecture and thermal evidence, release confidence is insufficient.
Single-shot low-duty prototyping with complete datasheet proof	Suitable with boundary review	Feasible for pilot stage; still requires thermal and repeatability logs before volume release.
Procurement-only flow without engineering measurements	Not suitable for direct approval	The tool intentionally blocks label-only approvals and requires core numeric evidence.
Safety-critical motion path with no end-position feedback	Boundary	Can proceed only with additional sensing or verification plan under worst-case conditions.

Stage1b Gap Audit

What was missing and what was enhanced

This section records the second-pass evidence and interaction improvements made after initial implementation.

Audited gap	Enhancement made	Decision impact
Cross-variant duty assumptions were still too implicit.	Added dated, part-level counterexamples (15% / 25% / 100% ED) from Kendrion and Johnson Electric references.	Prevents copying duty class across unrelated variants and improves release-gate accuracy.
Lifecycle confidence was under-specified by test condition.	Added frame-specific life references (500,000 vs >25 million cycles) with ambient and duty context from official sheets.	Makes lifecycle risk review auditable instead of slogan-based.
Temperature-driven pickup-voltage drift was missing as a quantified boundary.	Added TI reference-design numeric example showing pickup-voltage shift with coil temperature.	Pushes teams to verify measured rail and thermal conditions before approval.
Family-level variance inside the same part family was not explicit enough.	Added BSM043 variant comparison where duty and power differ by configuration.	Reduces over-generalization risk when switching between supplier variants.
Maintenance-phase hazardous-energy control was not linked to integration guidance.	Added OSHA 1910.147 tie-in for lockout/tagout program obligations during servicing.	Extends decision quality from bench fit to operational safety compliance.
Evidence tables did not clearly separate confirmed data vs public-data blind spots.	Expanded uncertainty and tradeoff mapping with explicit "pending public data" labeling where needed.	Prevents fabricated certainty and improves auditability.

Research Increments

What new evidence changed the decision model

This stage1b round adds dated, source-backed facts that directly change go/no-go behavior and procurement gating.

Decision question	New evidence with date	Boundary / applicability	Minimum action
Can duty class be inferred from the phrase "12V rotary solenoid"?	No. Published examples span 15% ED (Kendrion CDR030.000045 sheet, March 12, 2026), 25% max duty (Johnson 3B/4E sheets), and 100% ED (Kendrion D 74 and BSM043.000001 pages).	Duty value is valid only for the exact part number and test condition shown in that source.	Block RFQ release unless part-level duty evidence is attached to the chosen variant.
Is lifecycle predictable from duty/frequency labels alone?	No. Public rotary examples span 500,000 cycles (Johnson 3B) to >25 million cycles (Johnson 4E), both with explicit condition notes.	Life claims are conditional on ambient, load profile, duty, and mechanical stack-up.	Request lifecycle evidence with test conditions that match your load inertia and ambient window.
Can nominal 12V rail assumptions replace hot/cold measurements?	TI TIDU578A example shows pickup-voltage drift from 9.6 V to 10.36 V as coil temperature rises from 20°C to 40°C.	Nominal-only voltage assumptions are invalid when thermal drift and transient behavior are not measured.	Capture min/max rail under operating temperature and rerun voltage headroom checks.
Does pass output remove maintenance safety obligations?	No. OSHA 1910.147 requires an energy-control program for servicing where unexpected energization or stored energy can cause injury.	Applies to workplace integration and service procedures, not just component-level bench validation.	Tie release checklist to lockout/tagout procedure ownership before commissioning.

Method

Tool logic and report logic use the same gating model

The checker and the report are intentionally consistent: each rule maps to a concrete decision gate and recovery path.

Step	Tool logic	Pass rule	Boundary rule
1. Capture measured supply window	Compare measured minimum/maximum against datasheet limits and compute two-sided headroom.	Both lower and upper voltage headroom are >= 0 V.	Headroom close to zero is treated as boundary even when not negative.
2. Validate torque at target angle	Use required torque and catalog torque-at-angle values, not headline torque at unknown position.	Torque margin is >= 0 Ncm.	Low torque margin is boundary because tolerance spread can remove residual margin.
3. Validate angle capability	Compare target angle with published maximum angle for selected variant.	Angle headroom is >= 0°.	Small residual angle margin is boundary due to stop and tolerance sensitivity.
4. Validate duty and cycle-rate fit	Compute duty from on-time/off-time and compare with published duty limit; compare required cycles/min against datasheet limit.	Duty headroom and cycle headroom are both >= 0 and not critically thin.	Thin duty or cycle headroom is boundary and requires thermal/lifecycle evidence.
5. Validate architecture compatibility	Evaluate drive mode, return mode, and hold-without-power requirement consistency.	Architecture is known and requirement-compatible.	Unknown architecture or incompatible hold requirements block approval.

Boundaries

Where this page is reliable, and where it is not

Boundary visibility is mandatory: each row shows what is known, where failure happens, and the minimum recovery action.

Boundary	Known evidence	Where it fails	Minimum action
Measured voltage window	Two-sided headroom against datasheet limits	Negative headroom in either direction hard-fails. Very thin headroom is boundary.	Stabilize rail, redesign driver, or choose matched coil variant.
Torque at target angle	Catalog torque-at-angle comparison	Ignoring angle-specific torque can create false pass signals and field stall risk.	Use part-level torque curves at exact angle, duty, and temperature context.
Maximum rotation angle	Target-angle vs published max-angle check	Mechanical stop overrun is a hard fail regardless of electrical margin.	Switch variant or redesign mechanism range.
Duty limit	Calculated duty from on/off timing	Duty above published class is hard fail; low residual margin is boundary.	Reduce duty demand or move to a higher-duty or current-shaped architecture.
Switching-frequency limit	Required cycles/min vs published maximum cycles/min	Frequency overshoot can fail timing and thermal assumptions early.	Reduce frequency or require validated high-frequency variant data.
Drive architecture confidence	Declared driver mode (peak-hold/direct/pulse)	Unknown architecture is needs-data and cannot be auto-approved.	Declare architecture and attach test logs for pull-in, hold, and heating.
Return mechanism compatibility	Spring-return or bistable mode selected	Power-off hold requirement conflicts with spring-return architecture.	Switch to bistable hardware or add external locking design path.
Ambient window confidence	Ambient input is screened against broad checker range	Out-of-window temperatures become boundary until part-level derating data is provided.	Request supplier thermal derating and run pilot thermal logging.

Comparison

When to choose rotary solenoid vs alternatives

Comparison is structured by decision dimensions, not slogans. Use this to avoid architecture lock-in too early.

Option	Strengths	Limits	Best-use pattern
12V rotary solenoid	Fast switching, compact integration, straightforward ON/OFF control, no pneumatic infrastructure.	Angle range and torque are tightly variant-dependent; duty and thermal margins must be managed carefully.	Discrete angular actuation where response speed and compact volume matter.
Geared DC motor + encoder + stop logic	Wide controllable angle range and programmable trajectories.	Higher control complexity, larger BOM, slower response in many stop/start applications.	Continuous or multi-position angle control with richer closed-loop behavior.
Mini pneumatic rotary actuator	High torque-to-size in some setups and strong cycle life when air quality is controlled.	Needs compressed-air system, valve stack, leak management, and maintenance overhead.	Factories with existing pneumatic infrastructure and high-cycle rotational output needs.
Voice-coil + linkage architecture	Smooth force control and analog behavior potential.	Mechanical integration complexity and control tuning overhead for discrete position holds.	Precision modulation tasks where binary switching behavior is insufficient.

Tradeoffs

Counterexamples, limits, and decision costs

These rows surface failure-oriented tradeoffs so teams can choose architecture intentionally, not by default.

Decision axis	Favorable direction	Hidden cost	Failure if ignored	Evidence status
Duty vs thermal headroom	Use lower duty demand or a variant published for high ED (for example, 100% ED classes).	Higher-duty-capable variants can change package, power, and integration constraints.	Thermal overrun and life collapse even when nominal voltage appears compliant.	Confirmed with public variant-level data (reviewed May 19, 2026).
Direct DC drive vs peak-and-hold shaping	Peak-and-hold can reduce steady heating while retaining reliable pull-in.	Adds control complexity and validation scope for current profile and timing.	Direct-drive high-duty scenarios can drift into boundary/fail under temperature rise.	Confirmed by TI DRV110/TIDU578 architecture guidance; final margin still needs part-level test.
Spring-return simplicity vs no-power hold requirement	Use bistable architecture or add external latch when power-off hold is mandatory.	Pulse strategy and reset behavior must be validated for repeatability.	State loss on power removal and downstream functional safety risk.	Confirmed. No reliable public shortcut data that removes this validation step.
Public benchmark expectation vs available evidence	Treat public data as directional and build a project-specific acceptance protocol.	Requires extra supplier collaboration and measured acceptance tests before freeze.	False certainty from mixed vendor metrics and uncontrolled comparison bias.	Pending: no reliable public cross-vendor normalization model for torque-angle and life under matched conditions.

Risk

Failure modes and executable mitigations

Focus on operational failure points and concrete mitigation actions, not generic warnings.

Risk	Failure mode	Impact	Mitigation
Torque verified at wrong angle point	Bench success at one angle but field failure at target angle due to torque drop.	Startup stall, missed rotation, intermittent operation.	Require torque-at-angle table for target angle and duty condition in RFQ package.
Duty-cycle overrun in real sequence	Thermal rise exceeds assumptions, causing insulation stress and unstable hold.	Early life reduction and repeatability drift.	Compute duty from real sequence and enforce headroom gate before release.
Cross-variant duty or lifecycle numbers copied without conditions	A value valid for one frame/variant is reused on another frame with different limits.	Hidden reliability gap and avoidable field returns.	Demand part-number-specific duty/life evidence with ambient and load conditions in the RFQ pack.
Unknown driver architecture	Current profile and pulse behavior remain uncontrolled across operating spread.	Unpredictable pull-in/hold response and noisy production yield.	Classify drive mode explicitly and attach pull-in/hold current traces.
Power-off hold requirement mismatched to spring-return hardware	Mechanism loses state when power is removed.	Safety and functional state-loss incidents.	Use bistable architecture or external latch path with explicit verification.
Switching frequency above variant capability	Timing drift and heating escalate under high cycle-rate demand.	Throughput loss and accelerated wear.	Validate frequency limits and lifecycle evidence for exact part number.
No end-position feedback in critical path	Silent missed actuation events go undetected until downstream fault appears.	Quality escapes and late fault detection costs.	Add end-position sensing or include explicit periodic verification strategy.
No lockout/tagout integration in maintenance workflow	Unexpected energization or stored energy exposure during servicing is unmanaged.	Personnel safety incident and compliance exposure.	Map release package to OSHA 1910.147 energy-control procedure ownership before commissioning.

Boundary result is not a dead-end

Boundary means a structured evidence package is needed before release. It is a control step, not a rejection by default.

Request engineering validation Review evidence ledger first

Evidence

Source-to-claim traceability

Every critical conclusion is linked to a source; unresolved claims are explicitly marked as N/A or pending evidence.

Evidence ledger

Source	Fact extracted	Decision use	Review date
Kendrion rotary solenoids overview	Provides the family-level reference context for rotary-solenoid architecture and variantized product families.	Used to define the page scope as variant-dependent, not one-size-fits-all.	May 19, 2026
Kendrion CDR030 product page	Public page lists selectable angle options and duty-oriented variant context.	Used for key-number and angle-boundary framing in tool and report layers.	May 19, 2026
Kendrion CDR030.000045 product-sheet snapshot	Published March 12, 2026; includes 15% ED, ~20 ms switching time, and max 14,000 switching cycles per hour for that variant.	Used to show that duty and cycle-rate limits are strict part-level gates, not generic category defaults.	May 19, 2026
Kendrion D 74 BOR-F 24V DC 100% ED page	Public listing indicates 100% ED, 13.6 W nominal power, thermal class B 130, and IP40.	Used as a high-duty counterexample to prevent copying low-duty assumptions across variants.	May 19, 2026
Kendrion BSM043 family listings	Public entries show configuration spread: BSM043.000001 at 100% ED / 10 W and BSM043.000003 at 50% ED / 17 W.	Used to enforce variant-specific evidence even when family name remains the same.	May 19, 2026
Johnson Electric rotary solenoid 3B data sheet	Data-sheet table states max duty 25%, max on-time 1 second, and standard life 500,000 cycles at 20°C ambient.	Used to ground low-frame lifecycle and duty boundaries in explicit numeric evidence.	May 19, 2026
Johnson Electric rotary solenoid 4E data sheet	Data-sheet table states max duty 25%, max on-time 10 seconds, and standard life >25 million cycles at 20°C ambient.	Used to show lifecycle spread and why frame-specific validation is required.	May 19, 2026
Johnson Electric solenoids design considerations	Guide notes that reducing current density with ~30% more copper can cut coil temperature rise by roughly 10%, improving life/reliability.	Used to support thermal-design tradeoff guidance beyond nominal-voltage screening.	May 19, 2026
TI DRV110 datasheet	Documents a peak-and-hold controller architecture and operating envelope for solenoid-drive design.	Used to support drive-mode importance in checker and report recommendations.	May 19, 2026
TI TIDA-00289 reference design	Provides public architecture-level guidance for peak-and-hold current control.	Used to map actionable mitigation for direct-drive thermal-risk cases.	May 19, 2026
TI TIDU578A reference-design report	Revised November 2014; includes temperature-coefficient-based pickup-voltage shift example from 9.6 V to 10.36 V (20°C to 40°C).	Used to justify measured-window-first gating under thermal drift instead of nominal-only 12V assumptions.	May 19, 2026
TI SSZT243 transient article	Explains transient stress context in vehicle-adjacent power systems beyond nominal line values.	Used to justify measured-window-first logic for 12V screening.	May 19, 2026
OSHA 1910.303	Defines general electrical-equipment integration expectations for workplace installations.	Used to keep release guidance tied to system-level acceptance, not calculator-only pass.	May 19, 2026
OSHA 1910.147	Requires an energy-control program during servicing where unexpected energization or stored energy could cause injury.	Used to add maintenance-safety gating to the post-checker release workflow.	May 19, 2026

Known unknowns

Unknowns are intentionally visible; this page never invents missing benchmark data.

Claim	Status	Note
Cross-vendor universal torque-vs-angle normalization model	N/A (public evidence insufficient)	Public sources provide variant-level values, not a normalized all-vendor model suitable for direct benchmarking.
Universal lifecycle prediction from duty and frequency only	N/A (pending part-level tests)	Lifecycle is strongly influenced by load inertia, shock, temperature, and mechanical stack-up.
Guaranteed power-off hold behavior for every bistable-labeled unit	Needs project-level verification	Pulse strategy and mechanism integration can still break hold assumptions in practice.
Public apples-to-apples cost benchmark for rotary-solenoid architecture choices	N/A (no reliable open dataset)	Public sources disclose technical limits but do not provide a normalized cross-vendor BOM + lifecycle cost dataset.

Scenario mapping examples

Use these scenarios to map your current project to expected checker outputs.

Scenario	Assumptions	Expected state	Next action
Known 12V window + clear torque-angle margin + peak-hold drive	Measured 11.2-13.8 V, positive torque margin, duty below published limit, frequency below limit.	Pass or boundary with small number of residual warnings.	Prepare supplier validation package and freeze test protocol before RFQ issuance.
Nominal label only with missing measured and mechanical data	No measured rail window and no torque-at-angle evidence.	Needs-data.	Collect measured rail, torque-angle, and timing data; rerun checker.
Spring-return model with hold-without-power requirement	Need power-off hold = yes, return mode = spring-return.	Fail.	Move to bistable or add external latch architecture.
High-duty direct-drive setup with thin margins	Duty near limit, direct DC drive, low voltage/torque headroom.	Boundary or fail depending on exact margins.	Use peak-hold strategy and validate thermal-rise behavior before approval.

Source ledger

Reviewed May 19, 2026. Time-sensitive or revision-sensitive entries are date-stamped in the evidence tables.

FAQ

12V rotary solenoid decision FAQ

Grouped by decision intent so teams can move from questions to release actions quickly.

Intent and architecture basics

Boundary and risk decisions

Execution and release workflow

Final CTA: lock the decision with evidence, not assumptions

Export checker inputs, then request part-level validation for voltage window, torque-angle curve, duty/frequency limits, and repeatability evidence before final RFQ release.

Start supplier validation package Back to checker

12V rotary solenoid checker with evidence-backed selection boundaries

Published May 19, 2026 · Reviewed May 19, 2026 · Next scheduled review November 19, 2026

Question

Short answer

Why it matters

Is "12v rotary solenoid" a separate URL intent from "rotary solenoid"?

No. It is an alias modifier and should resolve to one canonical decision page.

Separate pages would split relevance and create near-duplicate risk for the same buyer workflow.

Can a 12V label alone approve a rotary solenoid for release?

No. You still need torque-at-angle, duty-cycle, switching-frequency, and drive-strategy evidence.

Most field failures originate in hidden mechanical or thermal boundary gaps, not in missing nameplate labels.

If voltage margin passes, can torque-angle checks be skipped?

No. Torque-at-angle mismatch is a hard fail condition.

Electrical margin cannot compensate for mechanical under-capacity at required angle and load inertia.

Do bistable claims remove all validation work?

No. Pulse strategy, reset behavior, and end-position repeatability still require evidence.

Bistable architecture can reduce hold power, but misapplied pulse logic still causes positional instability.

What should happen after a pass output?

Lock supplier evidence package: torque-angle curve, thermal rise, cycle-life condition, and acceptance test profile.

Pass is an engineering screen, not final production certification.

Signal

Number

Why it matters

Kendrion CDR030 rotation-angle options (example family)

25°, 35°, 45°, 95° options listed on public page

Use this as a family example, not a universal value. Angle capability varies by exact variant and stop geometry.

Kendrion CDR030.000045 data sheet snapshot (published March 12, 2026)

15% ED, ~20 ms switching time, max 14,000 switching cycles per hour

This is a strict variant-level envelope and cannot be generalized to every 12V rotary solenoid.

Kendrion D 74 BOR-F 24V DC 100% ED listing (reviewed May 19, 2026)

100% ED, 13.6 W nominal power, thermal class B 130, IP40

Shows that duty class depends on exact part construction, not on a generic rotary-solenoid label.

Kendrion BSM043 family variance (reviewed May 19, 2026)

BSM043.000001 lists 100% ED at 10 W, while BSM043.000003 lists 50% ED at 17 W

Even within one family code, housing and sensing variants can shift duty and power limits.

Johnson Electric 3B data sheet (date code 7-3-23)

Max duty 25%, max on-time 1 s, standard life 500,000 cycles at 20°C

Life and duty claims are explicitly condition-bound and should be copied with the same test context.

Johnson Electric 4E data sheet (date code 4-13-23)

Max duty 25%, max on-time 10 s, standard life >25 million cycles at 20°C

Lifecycle capability can differ by orders of magnitude between frames; model selection cannot rely on voltage only.

TI TIDU578A thermal drift example (revised November 2014)

Pickup-voltage example rises from 9.6 V to 10.36 V when coil shifts from 20°C to 40°C

Measured hot/cold rail window is mandatory because temperature shifts can consume startup headroom.

DRV110 controller operating range

6 V to 15 V supply range (datasheet)

Shows why drive architecture should be explicit in 12V designs where pull-in and hold current are separated.

DRV110 programmable peak current

Up to about 1.2 A programmable peak current

Peak-hold strategy can widen startup reliability while controlling thermal load.

Automotive 12V transient reality

Public transient guidance confirms wide disturbance conditions around nominal 12V systems

Measured rail window should be used instead of nominal-only assumptions for vehicle-adjacent deployments.

OSHA electrical acceptance baseline

US workplaces still require documented electrical safety approach for final equipment integration

Below-50V logic does not remove system-level acceptance and safe-integration obligations.

Audience profile

Fit status

Reason

12V actuator path with known rail measurements and torque-angle data

Suitable

Checker outputs can drive first-stage go/no-go decisions and RFQ precheck with explicit margin metrics.

Designs requiring hold without power but with spring-return hardware

Not suitable without architecture change

Requirement and mechanism are incompatible. Bistable or external latch strategy is required.

High cycle-rate duty with unknown driver strategy

Boundary / needs-data

Without explicit drive architecture and thermal evidence, release confidence is insufficient.

Single-shot low-duty prototyping with complete datasheet proof

Suitable with boundary review

Feasible for pilot stage; still requires thermal and repeatability logs before volume release.

Procurement-only flow without engineering measurements

Not suitable for direct approval

The tool intentionally blocks label-only approvals and requires core numeric evidence.

Safety-critical motion path with no end-position feedback

Boundary

Can proceed only with additional sensing or verification plan under worst-case conditions.

Audited gap

Enhancement made

Decision impact

Cross-variant duty assumptions were still too implicit.

Added dated, part-level counterexamples (15% / 25% / 100% ED) from Kendrion and Johnson Electric references.

Prevents copying duty class across unrelated variants and improves release-gate accuracy.

Lifecycle confidence was under-specified by test condition.

Added frame-specific life references (500,000 vs >25 million cycles) with ambient and duty context from official sheets.

Makes lifecycle risk review auditable instead of slogan-based.

Temperature-driven pickup-voltage drift was missing as a quantified boundary.

Added TI reference-design numeric example showing pickup-voltage shift with coil temperature.

Pushes teams to verify measured rail and thermal conditions before approval.

Family-level variance inside the same part family was not explicit enough.

Added BSM043 variant comparison where duty and power differ by configuration.

Reduces over-generalization risk when switching between supplier variants.

Maintenance-phase hazardous-energy control was not linked to integration guidance.

Added OSHA 1910.147 tie-in for lockout/tagout program obligations during servicing.

Extends decision quality from bench fit to operational safety compliance.

Evidence tables did not clearly separate confirmed data vs public-data blind spots.

Expanded uncertainty and tradeoff mapping with explicit "pending public data" labeling where needed.

Prevents fabricated certainty and improves auditability.

Decision question

New evidence with date

Boundary / applicability

Minimum action

Can duty class be inferred from the phrase "12V rotary solenoid"?

No. Published examples span 15% ED (Kendrion CDR030.000045 sheet, March 12, 2026), 25% max duty (Johnson 3B/4E sheets), and 100% ED (Kendrion D 74 and BSM043.000001 pages).

Duty value is valid only for the exact part number and test condition shown in that source.

Block RFQ release unless part-level duty evidence is attached to the chosen variant.

Is lifecycle predictable from duty/frequency labels alone?

No. Public rotary examples span 500,000 cycles (Johnson 3B) to >25 million cycles (Johnson 4E), both with explicit condition notes.

Life claims are conditional on ambient, load profile, duty, and mechanical stack-up.

Request lifecycle evidence with test conditions that match your load inertia and ambient window.

Can nominal 12V rail assumptions replace hot/cold measurements?

TI TIDU578A example shows pickup-voltage drift from 9.6 V to 10.36 V as coil temperature rises from 20°C to 40°C.

Nominal-only voltage assumptions are invalid when thermal drift and transient behavior are not measured.

Capture min/max rail under operating temperature and rerun voltage headroom checks.

Does pass output remove maintenance safety obligations?

No. OSHA 1910.147 requires an energy-control program for servicing where unexpected energization or stored energy can cause injury.

Applies to workplace integration and service procedures, not just component-level bench validation.

Tie release checklist to lockout/tagout procedure ownership before commissioning.

Step

Tool logic

Pass rule

Boundary rule

1. Capture measured supply window

Compare measured minimum/maximum against datasheet limits and compute two-sided headroom.

Both lower and upper voltage headroom are >= 0 V.

Headroom close to zero is treated as boundary even when not negative.

2. Validate torque at target angle

Use required torque and catalog torque-at-angle values, not headline torque at unknown position.

Torque margin is >= 0 Ncm.

Low torque margin is boundary because tolerance spread can remove residual margin.

3. Validate angle capability

Compare target angle with published maximum angle for selected variant.

Angle headroom is >= 0°.

Small residual angle margin is boundary due to stop and tolerance sensitivity.

4. Validate duty and cycle-rate fit

Compute duty from on-time/off-time and compare with published duty limit; compare required cycles/min against datasheet limit.

Duty headroom and cycle headroom are both >= 0 and not critically thin.

Thin duty or cycle headroom is boundary and requires thermal/lifecycle evidence.

5. Validate architecture compatibility

Evaluate drive mode, return mode, and hold-without-power requirement consistency.

Architecture is known and requirement-compatible.

Unknown architecture or incompatible hold requirements block approval.

Boundary

Known evidence

Where it fails

Minimum action

Measured voltage window

Two-sided headroom against datasheet limits

Negative headroom in either direction hard-fails. Very thin headroom is boundary.

Stabilize rail, redesign driver, or choose matched coil variant.

Torque at target angle

Catalog torque-at-angle comparison

Ignoring angle-specific torque can create false pass signals and field stall risk.

Use part-level torque curves at exact angle, duty, and temperature context.

Maximum rotation angle

Target-angle vs published max-angle check

Mechanical stop overrun is a hard fail regardless of electrical margin.

Switch variant or redesign mechanism range.

Duty limit

Calculated duty from on/off timing

Duty above published class is hard fail; low residual margin is boundary.

Reduce duty demand or move to a higher-duty or current-shaped architecture.

Switching-frequency limit

Required cycles/min vs published maximum cycles/min

Frequency overshoot can fail timing and thermal assumptions early.

Reduce frequency or require validated high-frequency variant data.

Drive architecture confidence

Declared driver mode (peak-hold/direct/pulse)

Unknown architecture is needs-data and cannot be auto-approved.

Declare architecture and attach test logs for pull-in, hold, and heating.

Return mechanism compatibility

Spring-return or bistable mode selected

Power-off hold requirement conflicts with spring-return architecture.

Switch to bistable hardware or add external locking design path.

Ambient window confidence

Ambient input is screened against broad checker range

Out-of-window temperatures become boundary until part-level derating data is provided.

Request supplier thermal derating and run pilot thermal logging.

Option

Strengths

Limits

Best-use pattern

12V rotary solenoid

Fast switching, compact integration, straightforward ON/OFF control, no pneumatic infrastructure.

Angle range and torque are tightly variant-dependent; duty and thermal margins must be managed carefully.

Discrete angular actuation where response speed and compact volume matter.

Geared DC motor + encoder + stop logic

Wide controllable angle range and programmable trajectories.

Higher control complexity, larger BOM, slower response in many stop/start applications.

Continuous or multi-position angle control with richer closed-loop behavior.

Mini pneumatic rotary actuator

High torque-to-size in some setups and strong cycle life when air quality is controlled.

Needs compressed-air system, valve stack, leak management, and maintenance overhead.

Factories with existing pneumatic infrastructure and high-cycle rotational output needs.

Voice-coil + linkage architecture

Smooth force control and analog behavior potential.

Mechanical integration complexity and control tuning overhead for discrete position holds.

Precision modulation tasks where binary switching behavior is insufficient.

Decision axis

Favorable direction

Hidden cost

Failure if ignored

Evidence status

Duty vs thermal headroom

Use lower duty demand or a variant published for high ED (for example, 100% ED classes).

Higher-duty-capable variants can change package, power, and integration constraints.

Thermal overrun and life collapse even when nominal voltage appears compliant.

Confirmed with public variant-level data (reviewed May 19, 2026).

Direct DC drive vs peak-and-hold shaping

Peak-and-hold can reduce steady heating while retaining reliable pull-in.

Adds control complexity and validation scope for current profile and timing.

Direct-drive high-duty scenarios can drift into boundary/fail under temperature rise.

Confirmed by TI DRV110/TIDU578 architecture guidance; final margin still needs part-level test.

Spring-return simplicity vs no-power hold requirement

Use bistable architecture or add external latch when power-off hold is mandatory.

Pulse strategy and reset behavior must be validated for repeatability.

State loss on power removal and downstream functional safety risk.

Confirmed. No reliable public shortcut data that removes this validation step.

Public benchmark expectation vs available evidence

Treat public data as directional and build a project-specific acceptance protocol.

Requires extra supplier collaboration and measured acceptance tests before freeze.

False certainty from mixed vendor metrics and uncontrolled comparison bias.

Pending: no reliable public cross-vendor normalization model for torque-angle and life under matched conditions.

Risk

Failure mode

Impact

Mitigation

Torque verified at wrong angle point

Bench success at one angle but field failure at target angle due to torque drop.

Startup stall, missed rotation, intermittent operation.

Require torque-at-angle table for target angle and duty condition in RFQ package.

Duty-cycle overrun in real sequence

Thermal rise exceeds assumptions, causing insulation stress and unstable hold.

Early life reduction and repeatability drift.

Compute duty from real sequence and enforce headroom gate before release.

Cross-variant duty or lifecycle numbers copied without conditions

A value valid for one frame/variant is reused on another frame with different limits.

Hidden reliability gap and avoidable field returns.

Demand part-number-specific duty/life evidence with ambient and load conditions in the RFQ pack.

Unknown driver architecture

Current profile and pulse behavior remain uncontrolled across operating spread.

Unpredictable pull-in/hold response and noisy production yield.

Classify drive mode explicitly and attach pull-in/hold current traces.

Power-off hold requirement mismatched to spring-return hardware

Mechanism loses state when power is removed.

Safety and functional state-loss incidents.

Use bistable architecture or external latch path with explicit verification.

Switching frequency above variant capability

Timing drift and heating escalate under high cycle-rate demand.

Throughput loss and accelerated wear.

Validate frequency limits and lifecycle evidence for exact part number.

No end-position feedback in critical path

Silent missed actuation events go undetected until downstream fault appears.

Quality escapes and late fault detection costs.

Add end-position sensing or include explicit periodic verification strategy.

No lockout/tagout integration in maintenance workflow

Unexpected energization or stored energy exposure during servicing is unmanaged.

Personnel safety incident and compliance exposure.

Map release package to OSHA 1910.147 energy-control procedure ownership before commissioning.

Source

Fact extracted

Decision use

Review date

Kendrion rotary solenoids overview

Provides the family-level reference context for rotary-solenoid architecture and variantized product families.

Used to define the page scope as variant-dependent, not one-size-fits-all.

May 19, 2026

Kendrion CDR030 product page

Public page lists selectable angle options and duty-oriented variant context.

Used for key-number and angle-boundary framing in tool and report layers.

May 19, 2026

Kendrion CDR030.000045 product-sheet snapshot

Published March 12, 2026; includes 15% ED, ~20 ms switching time, and max 14,000 switching cycles per hour for that variant.

Used to show that duty and cycle-rate limits are strict part-level gates, not generic category defaults.

May 19, 2026

Kendrion D 74 BOR-F 24V DC 100% ED page

Public listing indicates 100% ED, 13.6 W nominal power, thermal class B 130, and IP40.

Used as a high-duty counterexample to prevent copying low-duty assumptions across variants.

May 19, 2026

Kendrion BSM043 family listings

Public entries show configuration spread: BSM043.000001 at 100% ED / 10 W and BSM043.000003 at 50% ED / 17 W.

Used to enforce variant-specific evidence even when family name remains the same.

May 19, 2026

Johnson Electric rotary solenoid 3B data sheet

Data-sheet table states max duty 25%, max on-time 1 second, and standard life 500,000 cycles at 20°C ambient.

Used to ground low-frame lifecycle and duty boundaries in explicit numeric evidence.

May 19, 2026

Johnson Electric rotary solenoid 4E data sheet

Data-sheet table states max duty 25%, max on-time 10 seconds, and standard life >25 million cycles at 20°C ambient.

Used to show lifecycle spread and why frame-specific validation is required.

May 19, 2026

Johnson Electric solenoids design considerations

Guide notes that reducing current density with ~30% more copper can cut coil temperature rise by roughly 10%, improving life/reliability.

Used to support thermal-design tradeoff guidance beyond nominal-voltage screening.

May 19, 2026

TI DRV110 datasheet

Documents a peak-and-hold controller architecture and operating envelope for solenoid-drive design.

Used to support drive-mode importance in checker and report recommendations.

May 19, 2026

TI TIDA-00289 reference design

Provides public architecture-level guidance for peak-and-hold current control.

Used to map actionable mitigation for direct-drive thermal-risk cases.

May 19, 2026

TI TIDU578A reference-design report

Revised November 2014; includes temperature-coefficient-based pickup-voltage shift example from 9.6 V to 10.36 V (20°C to 40°C).

Used to justify measured-window-first gating under thermal drift instead of nominal-only 12V assumptions.

May 19, 2026

TI SSZT243 transient article

Explains transient stress context in vehicle-adjacent power systems beyond nominal line values.

Used to justify measured-window-first logic for 12V screening.

May 19, 2026

OSHA 1910.303

Defines general electrical-equipment integration expectations for workplace installations.

Used to keep release guidance tied to system-level acceptance, not calculator-only pass.

May 19, 2026

OSHA 1910.147

Requires an energy-control program during servicing where unexpected energization or stored energy could cause injury.

Used to add maintenance-safety gating to the post-checker release workflow.

May 19, 2026

Claim

Status

Note

Cross-vendor universal torque-vs-angle normalization model

N/A (public evidence insufficient)

Public sources provide variant-level values, not a normalized all-vendor model suitable for direct benchmarking.

Universal lifecycle prediction from duty and frequency only

N/A (pending part-level tests)

Lifecycle is strongly influenced by load inertia, shock, temperature, and mechanical stack-up.

Guaranteed power-off hold behavior for every bistable-labeled unit

Needs project-level verification

Pulse strategy and mechanism integration can still break hold assumptions in practice.

Public apples-to-apples cost benchmark for rotary-solenoid architecture choices

N/A (no reliable open dataset)

Public sources disclose technical limits but do not provide a normalized cross-vendor BOM + lifecycle cost dataset.

Scenario

Assumptions

Expected state

Next action

Known 12V window + clear torque-angle margin + peak-hold drive

Measured 11.2-13.8 V, positive torque margin, duty below published limit, frequency below limit.

Pass or boundary with small number of residual warnings.

Prepare supplier validation package and freeze test protocol before RFQ issuance.

Nominal label only with missing measured and mechanical data

No measured rail window and no torque-at-angle evidence.

Needs-data.

Collect measured rail, torque-angle, and timing data; rerun checker.

Spring-return model with hold-without-power requirement

Need power-off hold = yes, return mode = spring-return.

Fail.

Move to bistable or add external latch architecture.

High-duty direct-drive setup with thin margins

Duty near limit, direct DC drive, low voltage/torque headroom.

Boundary or fail depending on exact margins.

Use peak-hold strategy and validate thermal-rise behavior before approval.

12V rotary solenoid checker with evidence-backed selection boundaries

Run the 12V rotary solenoid fit checker first

Core conclusions and key numbers

Suitable vs not-suitable audience map

What was missing and what was enhanced

What new evidence changed the decision model

Tool logic and report logic use the same gating model

Where this page is reliable, and where it is not

When to choose rotary solenoid vs alternatives

Counterexamples, limits, and decision costs

Failure modes and executable mitigations

Source-to-claim traceability

12V rotary solenoid decision FAQ

Why does this page keep "12v rotary solenoid" and "rotary solenoid" on one canonical URL?

What is the first thing to verify for a 12V rotary solenoid shortlist?

Why is torque checked at angle instead of one headline torque number?

Can direct DC drive be acceptable?

What does a boundary result mean in this checker?

Why is duty-cycle overrun treated as a hard fail instead of a warning?

Why is switching-frequency overrun a hard fail even when duty is acceptable?

Why does this page show 15%, 25%, and 100% duty examples at the same time?

What if my project requires hold without power but my selected model is spring-return?

What evidence should be attached after a pass output?

How should procurement use this checker output?

Can this page replace lifecycle testing?

Does a pass output remove lockout/tagout requirements in factory integration?

How often should this page evidence be reviewed?

Continue from this canonical decision path

12V rotary solenoid checker with evidence-backed selection boundaries

Run the 12V rotary solenoid fit checker first

Core conclusions and key numbers

Suitable vs not-suitable audience map

What was missing and what was enhanced

What new evidence changed the decision model

Tool logic and report logic use the same gating model

Where this page is reliable, and where it is not

When to choose rotary solenoid vs alternatives

Counterexamples, limits, and decision costs

Failure modes and executable mitigations

Source-to-claim traceability

12V rotary solenoid decision FAQ

Why does this page keep "12v rotary solenoid" and "rotary solenoid" on one canonical URL?

What is the first thing to verify for a 12V rotary solenoid shortlist?

Why is torque checked at angle instead of one headline torque number?

Can direct DC drive be acceptable?

What does a boundary result mean in this checker?

Why is duty-cycle overrun treated as a hard fail instead of a warning?

Why is switching-frequency overrun a hard fail even when duty is acceptable?

Why does this page show 15%, 25%, and 100% duty examples at the same time?

What if my project requires hold without power but my selected model is spring-return?

What evidence should be attached after a pass output?

How should procurement use this checker output?

Can this page replace lifecycle testing?

Does a pass output remove lockout/tagout requirements in factory integration?

How often should this page evidence be reviewed?

Continue from this canonical decision path