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Vishay General Semiconductor - Diodes Division SM6S10AHM3/I
- Part No.:
- SM6S10AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-218AC
- Datasheet:
-
SM6S10AHM3/I.pdf
- Description:
- TVS DIODE 10VWM 17VC DO218AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,594
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Product details
Overview
SM6S10AHM3/I from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor in DO-218AB package, rated for 10 V stand-off voltage (VWM), 11.1–12.3 V breakdown (VBR), 4600 W peak pulse power (10/1000 μs), and 175 °C junction temperature - designed for automotive load dump protection in engine control units and body electronics.
For engineers reviewing the SM6S10AHM3/I datasheet, SM6S10AHM3/I pinout, SM6S10AHM3/I application, or SM6S10AHM3/I equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, thermal resistance (RθJM = 0.45 °C/W), clamping behavior (VC = 17.0 V at IPPM), and direct alternative guidance for legacy design continuity.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve low leakage (<15 μA at VWM) and low forward voltage drop (VF ≤ 1.9 V @ 100 A), enabling robust clamping during high-energy transients without parasitic conduction in normal operation. Its DO-218AB package integrates a metal heatsink as anode terminal, supporting high surge capability (IFSM = 600 A) and thermal stability up to TJ = 175 °C.
It meets ISO 7637-2 surge requirements under defined test conditions and complies with MSL Level 1 (245 °C peak reflow), making it suitable for automated SMT assembly in automotive-grade production. The device is not for new designs per Vishay's notice, with SM6S10AHM3/I serving as the qualified replacement for SM6S10A.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - maximum continuous reverse operating voltage before clamping begins; defines system-level DC bus tolerance margin. |
| VBR (min/typ/max) | 11.1 / 11.7 / 12.3 V @ 5 mA - precise breakdown threshold ensures predictable turn-on during transients. |
| VC @ IPPM | 17.0 V - clamping voltage at peak pulse current; limits downstream IC stress during 4600 W surges. |
| PPPM (10/1000 μs) | 4600 W - peak transient energy handling capacity; supports automotive load dump compliance. |
| TJ max. | +175 °C - enables operation in under-hood environments without derating in high-ambient designs. |
| RθJM | 0.45 °C/W - low junction-to-mount thermal resistance allows efficient heat transfer to PCB copper or heatsink. |
| AEC-Q101 | Qualified - validated for automotive reliability including temperature cycling, HTRB, and ESD. |
Pinout & Package
Package: DO-218AB - surface-mount, anode-connected metal heatsink case, RoHS-compliant matte tin-plated leads, UL 94 V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Metal Heatsink) | Current entry point during clamping | Direct thermal path to PCB copper pour or external heatsink; must be connected to system ground or low-impedance return. |
| Cathode (Lead 1) | Current exit point during clamping | Connected to protected line (e.g., 12 V battery rail); forms series suppression path with anode ground reference. |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation optimized design | Enables stable VBR over lifetime and temperature, reducing drift risk in 15+ year automotive deployments. |
| Unidirectional polarity only | Simplifies layout by eliminating bidirectional ambiguity; matches standard automotive supply rail protection topology. |
| Low leakage current (<15 μA @ VWM) | Minimizes standby power loss in always-on vehicle modules such as telematics and gateway ECUs. |
| Meets ISO 7637-2 surge specification | Validated for Pulse 5a (load dump) under defined test conditions, reducing need for additional validation effort. |
| MSL Level 1 (245 °C peak) | Supports standard lead-free reflow profiles without moisture sensitivity concerns or baking requirements. |
Applications
| Engine Control Unit (ECU) Power Input Protection | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Protects 12 V input rail of engine ECU against alternator load dump transients up to 40 V and 4600 W. IC Role / Device Role / Timing Role: Unidirectional TVS diode clamping excess energy to ground within nanoseconds of overvoltage onset. Use Value: Prevents latch-up or permanent damage to MCU, CAN transceivers, and analog front-end ICs during cold-crank and load-dump events. |
Use Scenario: Shields BCM power domain from switching noise and inductive kickback generated by door lock actuators and lighting relays. IC Role / Device Role / Timing Role: Fast-response voltage clamp placed directly at module input connector to absorb repetitive 10/1000 μs surges. Use Value: Maintains functional safety integrity by limiting transient-induced resets or communication errors on LIN/CAN buses. |
| Advanced Driver Assistance Systems (ADAS) Camera Power Supply | Electric Power Steering (EPS) Control Unit |
Use Scenario: Guards 12 V supply to image sensor and ISP in rear-view or surround-view cameras exposed to vehicle-level EMI. IC Role / Device Role / Timing Role: Primary overvoltage suppression element upstream of DC/DC converter, activated before internal LDOs saturate. Use Value: Ensures uninterrupted video stream by preventing brownout or reset during ignition transients and jump-start scenarios. |
Use Scenario: Safeguards EPS microcontroller and motor gate drivers from inductive spikes caused by brushless motor commutation. IC Role / Device Role / Timing Role: High-reliability TVS mounted adjacent to power stage input, leveraging DO-218AB heatsink for thermal resilience. Use Value: Avoids torque interruption or false fault reporting by clamping sub-100 ns spikes that exceed 30 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SM6S10AHM3 | No /I suffix - bulk packaging instead of tape-and-reel; identical electrical and thermal specs. | Same automotive load dump protection use case; differs only in delivery format for manual vs. automated assembly. | Select SM6S10AHM3/I for SMT line compatibility; choose SM6S10AHM3 for prototyping or low-volume hand-soldering. |
| SM6S12AHM3/I | Higher VWM (12 V) and VBR (13.3–14.7 V); same package, power rating, and qualification. | Better suited for 13.5–14.5 V nominal systems (e.g., running alternator output) where 10 V VWM risks premature conduction. | Use SM6S12AHM3/I when system nominal voltage exceeds 12.5 V or when tighter VBR tolerance is required for margin analysis. |
Compared with SM6S10AHM3/I, SM6S10AHM3 offers identical protection performance with packaging flexibility, while SM6S12AHM3/I provides higher stand-off margin for elevated battery rail voltages - both retain AEC-Q101 qualification and DO-218AB thermal performance.
Availability
SM6S10AHM3/I is available at Aetrix Electronics and suitable for automotive ECU power protection, body control module hardening, and ADAS camera supply stabilization requiring stable component supply across long production lifecycles.
Supply support for SM6S10AHM3/I includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The SM6SxxAHM3 series belongs to Vishay's PAR® TVS platform, engineered specifically for AEC-Q101-compliant automotive transient suppression with emphasis on thermal robustness and surge repeatability under harsh under-hood conditions.
FAQ
What is the clamping voltage of SM6S10AHM3/I at its rated peak pulse current?
The SM6S10AHM3/I has a maximum clamping voltage (VC) of 17.0 V when subjected to its peak pulse current (IPPM) under the 10/1000 μs waveform. This value is measured and guaranteed per Vishay's datasheet (Document Number 88384, Page 2), ensuring downstream components see no more than 17.0 V during a 4600 W transient event. The SM6S10AHM3/I maintains this clamping performance across its full operating temperature range.
Is SM6S10AHM3/I qualified for automotive applications?
Yes, SM6S10AHM3/I is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments up to +175 °C junction temperature. It meets ISO 7637-2 surge requirements for load dump (Pulse 5a) under defined test conditions and is categorized as "H" grade in Vishay's ordering nomenclature - confirming its automotive qualification status. The SM6S10AHM3/I also passes JESD201 Class 2 whisker testing and MSL Level 1 reflow compatibility.
What does the "/I" suffix mean in SM6S10AHM3/I?
The "/I" suffix in SM6S10AHM3/I denotes tape-and-reel packaging per JEDEC standard: 750 units per 13-inch diameter reel, with anode oriented toward the sprocket hole. This format ensures compatibility with high-speed pick-and-place equipment. The core device - SM6S10AHM3 - remains electrically and thermally identical; only the packaging differs from bulk or ammo-pack variants. All SM6S10AHM3/I units carry full AEC-Q101 qualification and RoHS compliance.
Can SM6S10AHM3/I replace SM6S10A in existing designs?
Yes, SM6S10AHM3/I is Vishay's designated replacement for SM6S10A, introduced due to process and qualification enhancements. Both share identical DO-218AB package, pinout, VWM (10 V), VBR (11.1–12.3 V), and clamping voltage (17.0 V). The SM6S10AHM3/I adds AEC-Q101 qualification, improved thermal resistance (RθJM = 0.45 °C/W), and updated material compliance (E3 halogen-free), making it a drop-in upgrade for legacy SM6S10A designs.
What is the thermal resistance from junction to mount (RθJM) for SM6S10AHM3/I?
The SM6S10AHM3/I has a typical junction-to-mount thermal resistance (RθJM) of 0.45 °C/W, measured using the Transient Dual Interface Method (JEDEC 51-14). This low value reflects the DO-218AB package's integrated metal heatsink (anode terminal), which provides a direct thermal path to the PCB copper or external heatsink. This enables effective power dissipation during repetitive surge events and supports sustained operation at TJ = 175 °C without external cooling.
SM6S10AHM3/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-218AC
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 271A
- Power - Peak Pulse:
- 4600W (4.6kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-218AC
SM6S10AHM3/I FAQ
1.How can I place an order for SM6S10AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6S10AHM3/I on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SM6S10AHM3/I reliable?
The price and inventory of SM6S10AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6S10AHM3/I is usually 5 days.
3.What payment methods are accepted for SM6S10AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6S10AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6S10AHM3/I?
SM6S10AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6S10AHM3/I order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SM6S10AHM3/I?
For technical support, including SM6S10AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6S10AHM3/I requirements.
6.How does Aetrix verify that SM6S10AHM3/I is sourced from the original manufacturer or authorized distributors?
All SM6S10AHM3/I products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SM6S10AHM3/I meets industry standards.
7.What is the process for return or replacement of SM6S10AHM3/I?
All SM6S10AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SM6S10AHM3/I, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SM6S10AHM3/I part is unused and in its original packaging.
Return procedure for SM6S10AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6S10AHM3/I Tags
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