Hybrid Tool + ReportStage1b research update: 2026-04-25
10mm Coin Vibration Motor Selection Tool and Decision Report
Finish two tasks on one URL: run a first-screen fit calculation for 10mm coin motors, then validate the decision with quantified evidence, applicability boundaries, alternatives, and risk controls.
Published: 2026-04-25 | Last updated: 2026-04-25 | Review cadence: quarterly
Tool layer: quick sizing input
Enter boundary-safe values first. Invalid input is blocked and recoverable.
Boundary: 2.0V to 5.0V (tool acceptance). 10mm ERM reference PN window: 2.3V to 3.6V.
Boundary: 8,000 to 15,000 rpm.
Boundary: 0.3G to 2.5G.
Boundary: 5% to 100%.
If the result is inconclusive, use the design-review CTA instead of forcing a procurement choice.
Result layer: interpreted outputNo result yet
Result includes interpretation, uncertainty, and the next executable action.
Empty state
No calculation yet. Enter inputs and run the estimator to generate a fit decision.
Stage1b gap audit and closure status
Audit-first enhancement: each high-impact content gap is tracked with explicit remediation status.
Gap closure ledger
Blocker/high gaps are closed in-page; unresolved items remain explicitly marked for follow-up.
| Gap found | Decision impact | Stage1b action | Status |
|---|---|---|---|
| Tool-first experience for this exact keyword route did not exist. | High risk that users searching `10mm coin vibration motor` had to infer from broader pages. | Created dedicated route with first-screen input, result interpretation, and direct action CTA. | Closed in stage1-primary (2026-04-25) |
| Key PN boundaries were dispersed and easy to miss. | High risk of overdrive and startup failures from generic `3V` interpretation. | Promoted PN voltage/current/timing boundaries into summary cards, tool boundaries, and trigger matrix. | Closed in stage1b (2026-04-25) |
| Evidence and uncertainty were mixed in previous narratives. | High risk of treating assumptions as validated cross-vendor truth. | Separated source ledger, research delta facts, and pending-data block with explicit certainty labels. | Closed in stage1b (2026-04-25) |
| Risk module underrepresented logistics/compliance failure paths. | High risk of late-stage block by battery or consumer-product requirements. | Added CPSC + UL + PHMSA-linked risk rows, actions, and FAQ gates. | Closed in stage1b (2026-04-25) |
| Scenario layer lacked enclosure-coupled and battery-path examples. | Medium-to-high risk of selecting actuator by free-air assumptions only. | Added six scenario rows covering coin-cell, high duty, high temperature, and US consumer deployment. | Closed in stage1b (2026-04-25) |
| Adjacent-intent linking for this new route was missing. | Medium risk of poor discovery and weak contextual trust transfer from related pages. | Added related-intent anchors in-page and links from adjacent learn pages. | Closed in stage1c (2026-04-25) |
Report summary: conclusions and key numbers
Core conclusions are paired with quantifiable context before deep-dive sections.
Canonical URL
/learn/10mm-coin-vibration-motor
Single URL for tool-first execution plus evidence-backed decision content.
Keyword snapshot
US volume: 20 / CPC: $0.00
OpenSpec proposal for `10mm coin vibration motor` (2026-04-06).
Intent split
do 0.50 / know 0.50
Intent router marked this route as hybrid (tool + report).
3V data boundary
2.3V start max, 3.6V max op
Precision Microdrives 310-103.004 datasheet, rechecked 2026-04-25.
10mm ERM current ceiling
90mA run max, 150mA start max
Same PN under listed inertial-load condition (rechecked 2026-04-25).
10mm ERM timing reference
Lag 40ms, rise 87ms, stop 115ms
Use as test-fixture reference, not universal production guarantee.
10mm LRA counterpoint
2Vrms @ 175Hz, 0.5Vrms max start
C10-100: faster onset but slower stop under cited setup.
Haptic IC rail
DRV2605L: 2.0V to 5.2V
ERM/LRA feature stack for effect-oriented haptic control.
Generic H-bridge rail
DRV8837 VM 0-11V
Drive feasibility only; no integrated haptic effect stack.
Coin-cell mismatch
0.2mA baseline vs 10mA pulse examples
CR2032 baseline and pulse examples are below many startup bursts.
US product gate
16 CFR 1263 + UL 4200A-2023
Apply when the product scope includes accessible coin/button cells.
Shipping gate
UN38.3 summary required
PHMSA guidance effective since 2024-05-10.
Who this is suitable for
- Need a fast go/no-go check for a 10mm coin vibration motor under 2.0V-5.0V tool envelope.
- Need to translate haptic target (G, duty, timing) into current and risk boundaries before RFQ.
- Need one page that handles both immediate selection and deeper decision justification.
- Need explicit next actions when output is conditional or boundary-failing.
Who this is not suitable for
- Safety-critical designs requiring certified lifetime or medical qualification evidence.
- Programs demanding production sign-off without PN-level thermal and waveform validation.
- Projects insisting on coin-cell direct drive with no power-path redesign options.
- Final architecture freeze without enclosure-coupled adhesive and acoustic validation.
Methods and evidence
Transparent formulas, dated sources, and explicit known/unknown boundaries.
Method flow
Input to estimate to boundary check to action path.
| Method block | Formula / rule | Decision value |
|---|---|---|
| Frequency conversion | f(Hz) = rpm / 60 | Converts motor-speed input to vibration frequency for haptic target mapping. |
| Estimated RMS vibration | G_est ~= (rpm / 12200) * (V / 3.0) * env_factor | Uses a 10mm ERM reference point; output is screening-grade, not qualification-grade. |
| Operating current estimate | I_run ~= base + speed/load/duty penalties | Models current envelope needed for pre-RFQ power-path screening. |
| Startup current estimate | I_start ~= 1.9 * I_run (conservative screen) | Uses margin above one cited 10mm ERM ratio (~150mA/90mA ~= 1.67) to reduce false-safe screening outcomes. |
| Confidence score | Base 92 - boundary penalties | Penalizes high duty, high amplitude, and rail mismatch conditions. |
Source ledger
Time markers and certainty labels are mandatory for trust. Last refreshed: 2026-04-25.
| Source | Date | Coverage | Known / Unknown |
|---|---|---|---|
| OpenSpec change: add-kw-10mm-coin-vibration-motor-page | 2026-04-06 | Canonical route definition and search-demand baseline for this page. | Known |
| OpenSpec change: add-kw-10mm-coin-vibration-motor-3v-datasheet-page | 2026-04-06 | 3V datasheet-adjacent intent context used for boundary framing on this route. | Known |
| OpenSpec change: add-kw-10-mm-disc-vibration-motor-page (related intent) | 2026-04-20 | Adjacent 10mm disc intent used for internal linking and anti-dup differentiation checks. | Known |
| On-page estimator model | 2026-04-25 | Deterministic pre-RFQ model for current, confidence, and boundary-state classification. | Known |
| Precision Microdrives 310-103.004 datasheet (R001-V003) | 2021-03 (rechecked 2026-04-25) | 3.0V rated, 3.6V max operating, 2.3V max start, 90mA max rated current, 150mA max start current, 61Ohm typ resistance, 349uH typ inductance, and lag/rise/stop timings. | Known |
| Precision Microdrives C10-100 LRA datasheet (R006-PROD) | 2024-06 (rechecked 2026-04-25) | 10mm LRA reference includes 2Vrms @ 175Hz, 0.5Vrms max start, lag/rise/stop timings, and auto-resonance notes including typical voltage derating guidance. | Known |
| TI DRV2605L datasheet (Rev. D) | SLOS854D, revised 2018-03 (accessed 2026-04-25) | 2.0V-5.2V supply, integrated effect library, ERM closed-loop drive, and LRA frequency support (125-300Hz). | Known |
| TI DRV8837 datasheet (Rev. F) | SLVSBA4F, revised 2021-04 (accessed 2026-04-25) | Brushed H-bridge path with VM 0V-11V and VCC 1.8V-7V; supports PWM/phase control but does not provide haptic effect libraries. | Known |
| Panasonic CR2032 datasheet | CR2032_Datasheet_EN_240701 (accessed 2026-04-25) | CR2032 nominal 3.0V with 225mAh at 0.2mA continuous to 2.0V. | Known |
| Panasonic BR2032 datasheet | BR2032_Datasheet_EN_260201 (accessed 2026-04-25) | BR2032 nominal 3.0V with 190mAh at 0.03mA continuous to 2.0V, showing chemistry-specific low-drain positioning. | Known |
| Energizer CR2032 datasheet | 2032NA0825 (accessed 2026-04-25) | Lists 190uA continuous drain and includes pulse-use profiles (for example key-fob style 10mA pulses), useful as a pulse-boundary reference. | Known |
| CPSC guidance: Reese's Law for button cell or coin batteries | Guidance updated 2025-03-10 (accessed 2026-04-25) | U.S. consumer products with accessible button/coin batteries are expected to meet warning and child-resistance requirements under 16 CFR 1263 and labeling requirements under 16 CFR 1263.4. | Known with market scope (US consumer products) |
| CPSC final rule notice and compliance date | Published 2023-09-21 (accessed 2026-04-25) | CPSC states products must be tested to ANSI/UL 4200A-2023 and comply by 2024-03-19 for covered products. | Known with regulatory scope |
| PHMSA: UN38.3 test summary requirement update | Published 2024-04-26; effective 2024-05-10 (accessed 2026-04-25) | Clarifies that DOT harmonization requires UN38.3 test summaries and details who can issue them. | Known with logistics scope |
| IEC 60086-4 publication status | 2025-04-30 publication page (accessed 2026-04-25) | IEC 60086-4:2025 replaces 2019 edition; standard scope remains primary lithium battery safety with updated packaging guidance. | Known with standards scope |
| On-page estimator model | 2026-04-25 | Fast screening of current/thermal/confidence for tool-layer actioning. | Known |
| Supplier PN-level endurance reports (publicly sparse) | Pending | High-duty life curves and enclosure-coupled amplitude retention over time. | Pending confirmation / no reliable public dataset |
Stage1b research delta
Only net-new, source-verifiable information is included here. Each row states scope and decision consequence.
New evidence-backed decision facts
Update date: 2026-04-25. Facts without stable public evidence stay in the pending block.
| Topic | New fact | Applicable condition | Decision effect | Certainty |
|---|---|---|---|---|
| `3V datasheet` label boundary | For the cited 10mm ERM PN, `3V` is a rated point, while the same datasheet also publishes 2.3V max start and 3.6V max operating limits. | Applies to that PN and listed inertial-load setup; cross-vendor 10mm parts can differ. | Do not treat `3V` wording as blanket overvoltage approval; requests above 3.6V move to boundary review/fallback. | Known with PN scope |
| 10mm ERM electrical + timing envelope | The cited ERM datasheet lists lag/rise/stop around 40ms / 87ms / 115ms (typical), plus 61Ohm typical resistance and 349uH typical inductance. | Frequency depends on actual drive voltage and load coupling. | Use as screening envelope only; if release feel depends on stop behavior, include waveform-level brake validation before RFQ freeze. | Known with test-condition scope |
| 10mm LRA measurable counterexample | C10-100 datasheet lists 2Vrms @ 175Hz and 0.5Vrms max start with lag/rise around 11ms / 37ms, but stop around 177ms without active-brake behavior. | LRA behavior depends on resonance tracking and frequency control near the PN resonance. | When chasing crisp onset and release, do not assume LRA is automatically better on every axis; run ERM/LRA A/B with actual drive mode. | Known with PN scope |
| Driver architecture boundary | DRV2605L supports ERM/LRA haptic control with 125-300Hz LRA frequency support, while DRV8837 is a generic H-bridge (VM 0-11V, VCC 1.8-7V). | A wide VM range does not imply haptic waveform quality or resonance control equivalence. | Keep DRV2605L-class path for nuanced haptics; reserve DRV8837-class path for simpler brushed-drive envelopes. | Known with architectural scope |
| Coin-cell chemistry boundary | Panasonic and Energizer datasheets publish low continuous-drain classes (for example 0.2mA or 190uA), while Energizer pulse examples are still around 10mA-class, below many ERM startup bursts. | Capacity and baseline drain numbers are not direct pulse-current guarantees. | Coin-cell-only direct-drive is treated as conditional/not-fit unless power path is redesigned. | Known with chemistry and test-condition scope |
| Regulatory and logistics gate | CPSC guidance/final rule define U.S. product gates (16 CFR 1263 and UL 4200A), while PHMSA highlights UN38.3 test-summary requirements for transport documentation. | Applies to covered consumer products and applicable battery-shipping channels. | Add compliance and shipping document checks before RFQ lock when coin cells are in-scope. | Known with jurisdiction and logistics scope |
| Standards baseline update | IEC publication status shows 60086-4:2025 replacing the 2019 edition for primary-lithium battery safety scope. | Standard applicability depends on your product market and conformity pathway. | Treat IEC edition references as time-sensitive and confirm target-market version before compliance freeze. | Known with standards scope |
Pending confirmation / no reliable public data
Evidence is insufficient for strong conclusions in these areas.
| Open question | Why evidence is insufficient | Decision impact |
|---|---|---|
| Long-cycle amplitude retention for 10mm discs bonded to real production housings. | Public datasets rarely include enclosure-coupled adhesive aging under matched duty cycles. | Cannot issue hard lifetime claims for amplitude drift without PN-level validation. |
| Cross-vendor acoustic spectra measured on identical fixture and mounting geometry. | Most public measurements are generated on different test rigs and filtering methods. | Noise comparisons remain directional; procurement decisions require your own bench data. |
| Battery aging impact on startup reliability for compact high-current bursts. | Open datasets do not normalize chemistry/temperature/state-of-health consistently. | Brownout and start-failure risk remains conditional until pack-level waveform capture. |
| Cross-vendor 10mm ERM-vs-LRA lifetime comparison on one unified fixture. | Public PN datasheets use different fixtures, waveforms, and duty assumptions, which blocks fair direct life ranking. | Architecture choice should use in-house A/B validation instead of a single normalized life claim. |
| Unified public datasheet registry for 10mm coin vibration motor variants. | No authoritative open repository normalizes PN-level 10mm coin motor electrical and durability fields across suppliers. | Procurement teams still need supplier-by-supplier datasheet intake and normalization before final comparison. |
Alternative comparison
Use reproducible dimensions (voltage, amplitude, response, cost, fit) instead of generic claims.
Option comparison table
If a value is unavailable in your project context, keep it as N/A and request supplier evidence.
| Option | Voltage band | Torque band | Dynamic response | Cost class | Best-fit scenario | Boundary / counterexample |
|---|---|---|---|---|---|---|
| 10mm disc ERM (brushed) | 3.0V rated, 3.6V max op, 2.3V max start | 1.3G typ / 0.75G min (datasheet test load) | Lag 40ms, rise 87ms, stop 115ms (typical) | Low | General alerts and haptic cues in compact products. | 90mA rated max and 150mA start max constrain battery path; cited MTTF is test-condition specific. |
| 10mm LRA coin actuator | 2.0Vrms rated, 2.05Vrms max, 0.5Vrms max start | 1.5G typ / 1.0G min (datasheet test load) | Lag 11ms, rise 37ms, stop 177ms (typical) | Medium | Premium haptic profiles needing tighter effect consistency. | Requires resonance-aware drive; onset can be fast but release can be slower without an actively tuned control strategy. |
| 12mm ERM disc | N/A (PN dependent; request supplier datasheet) | N/A (public fixture-normalized data unavailable) | Varies by PN and mounting stack | Low to medium | Higher-mass products where 10mm force margin is insufficient. | Larger diameter may break packaging constraints or raise audible output; no single public normalized baseline. |
| Dual 10mm ERM layout | N/A (architecture-specific rail design) | N/A (depends on phasing and fixture) | Pattern flexibility with control complexity | Medium | Products needing multiple haptic zones or stronger burst effects. | Current peaks, thermal load, and synchronization complexity increase substantially. |
Boundary trigger matrix
Each trigger includes a source-tied reason and a minimum executable action.
| Trigger condition | Why it matters | Source anchor | Minimum action |
|---|---|---|---|
| Interpreting `3V datasheet` label as safe for direct 4.2V battery drive | The cited ERM PN is rated 3.0V and publishes 3.6V max operating voltage. | PMD 310-103.004 datasheet | Treat as overvoltage boundary: add regulation/driver derating or select a different qualified PN. |
| Input voltage > 3.6V for baseline 10mm ERM path | Cited ERM PN max operating voltage is 3.6V. | PMD 310-103.004 datasheet | Switch to high-voltage-qualified actuator/driver path or reduce rail before sample selection. |
| Input voltage < 2.3V for baseline 10mm ERM path | Cited ERM PN max start voltage is 2.3V with inertial load. | PMD 310-103.004 datasheet | Treat as startup-risk boundary; redesign power path or choose actuator with lower start threshold. |
| Predicted startup current exceeds battery burst capability | Coin-cell datasheets show low continuous classes and modest pulse examples versus motor startup bursts. | Panasonic + Energizer CR2032 datasheets | Add reservoir/boost or move to battery architecture that can support startup transients. |
| Need both fast onset and fast stop in the same haptic profile | Cited LRA lag/rise is faster, but cited LRA stop time is longer than cited ERM stop time under listed conditions. | PMD C10-100 vs 310-103 datasheets | Run ERM/LRA A/B prototype with actual drive mode and braking strategy; do not choose by one timing metric. |
| US consumer product uses replaceable coin battery access path | CPSC guidance cites 16 CFR 1263 + UL 4200A-2023 expectations for covered products. | CPSC guidance and final rule notice | Run compliance gate review before RFQ freeze to prevent redesign at launch stage. |
| Battery-powered SKU enters pilot shipping without test-summary package | PHMSA guidance states UN38.3 test summary is required and clarifies responsible issuers. | PHMSA UN38.3 test-summary update | Collect and review test-summary files before pilot logistics planning; block shipment release when missing. |
Risk and mitigation
Covers misuse risk, cost risk, and scenario mismatch risk with direct mitigation actions.
Risk matrix
| Risk | Impact | Probability | Mitigation path |
|---|---|---|---|
| Treating `3V` naming as universal max-voltage approval | High | Medium | Use PN-level voltage rows (rated/start/max op) and enforce overvoltage gating in early architecture review. |
| Drive voltage below practical startup region for 10mm ERM | High | Medium to high | Treat <2.3V as boundary state; redesign rail or actuator class before sourcing. |
| Battery path cannot supply startup-current burst | High | High in coin-cell-only designs | Validate startup pulse on real pack; add reservoir/boost or change battery architecture. |
| Assuming generic H-bridge equals haptic driver capability | High | Medium | Separate motor-drive feasibility from haptic quality requirements; keep ERM/LRA control-fit review before driver freeze. |
| Assuming LRA always stops faster because onset is faster | Medium to high | Medium | Use complete timing rows (lag/rise/stop) and verify with selected drive mode before architecture lock. |
| Target G set above realistic 10mm disc envelope | High | Medium | Shift to larger ERM, dual-motor layout, or LRA architecture as required. |
| High duty cycle causes thermal drift and amplitude drop | High | Medium | Apply duty derating, ramp profile, and thermal validation before release. |
| Mounting adhesive and enclosure coupling mismatch | Medium | Medium | Validate on final enclosure stack, not only free-air bench fixtures. |
| US coin-cell compliance gate discovered too late | High | Medium | When shipping to U.S. consumer channels, review 16 CFR 1263 and UL 4200A requirements during architecture phase, not at launch. |
| Missing UN38.3-aligned test-summary evidence for battery logistics | Medium to high | Medium | Collect battery transport documents and test summaries before pilot shipment planning. |
| Driver family selected without ERM/LRA control-fit check | Medium | Medium | Confirm actuator type, control mode, and supply envelope together in architecture review. |
| Uncontrolled near-duplicate pages split evidence and keyword signals | Medium | Medium | Keep this route as the decision canonical and use anchors/related links for close variants. |
Scenario examples
Each scenario includes assumptions, modeled output, and the minimum next action.
Scenario table
| Scenario | Assumption | Estimated result | Action |
|---|---|---|---|
| Smartwatch alert module | 3.0V rail, 12,200 rpm target, 1.0G, 25% duty | Recommended with standard 10mm disc ERM class. | Request two PN samples and validate startup feel plus enclosure-coupled amplitude. |
| Coin-cell direct-drive prototype | CR2032-only rail, 12,000 rpm target, 1.1G, 30% duty | Conditional to not recommended depending pulse path. | Capture startup waveform and brownout behavior before selecting production BOM. |
| High-force handheld notification | 3.7V rail, 13,500 rpm target, 2.0G, 65% duty | Boundary review needed for 10mm disc class. | Evaluate 12mm ERM or LRA/dual-motor fallback architecture. |
| High-temperature enclosure | 3.0V rail, 12,000 rpm target, 1.2G, 50% duty, high ambient | Conditional due to thermal and adhesive risk. | Apply duty derating and run enclosure thermal validation. |
| Low-noise medical handheld | 3.3V rail, 10,500 rpm target, 0.8G, 35% duty, noise priority | Conditional with actuator-family comparison. | Run ERM vs LRA A/B test and choose based on measured acoustic profile. |
| US consumer wearable with replaceable coin cell | Coin-cell-powered alert product targeting U.S. consumer channels | Conditional pending compliance and transport evidence. | Run 16 CFR 1263 / UL 4200A check and collect battery shipping documentation before RFQ lock. |
Related intent anchors
Anchors connect close-intent queries to this single decision workflow without splitting tool/report context.
10mm coin vibration motor: tool input10mm coin vibration motor: result interpretation10mm coin vibration motor: method and evidence10mm coin vibration motor: FAQ decisions10mm coin vibration motor 3v datasheet: quick tool input10mm coin vibration motor 3v datasheet: result interpretation10mm coin vibration motor 3v datasheet: method and evidence10mm coin vibration motor 3v datasheet: FAQ decisionsBroader vibration motor decision page10mm DC motor architecture comparison10mm brushless motor decision route10mm coreless motor fit and report
Decision FAQ
Questions are grouped by intent, not glossary-only definitions.
B2B application fit, OEM options, and inquiry handoff
Move from estimator output to executable sourcing with factory customization scope and compliance-ready RFQ preparation.
Application fit
Projects that match this page's pre-RFQ scope.
- Wearables and handheld alerts using 10mm coin ERM or 10mm LRA-class actuators.
- Teams deciding whether 10mm coin architecture can meet force/noise/duty goals.
- Programs that need tool output plus traceable evidence in one procurement handoff.
OEM options
Customization knobs available from factory-side engineering.
- Lead wire/FPC/connector/adhesive stack customization for assembly compatibility.
- ERM vs LRA actuator choice with matched driver and waveform strategy.
- Duty/noise/feel tuning through ramp, brake, and frequency-profile control.
Trust and compliance
Evidence gates required before production commitment.
- Collect PN datasheets, startup-current traces, and endurance notes before RFQ lock.
- Validate thermal rise and adhesive retention on final enclosure geometry.
- When applicable, include 16 CFR 1263 / UL 4200A and UN38.3 evidence in handoff.