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Vishay General Semiconductor - Diodes Division SM15T10AHM3_A/I
- Part No.:
- SM15T10AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T10AHM3_A/I.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,279
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Product details
Overview
SM15T10AHM3_A/I from Vishay General Semiconductor is a unidirectional 1500 W transient voltage suppressor (TVS) in SMC (DO-214AB) package, with 10 V standoff voltage (VWM), 14.5 V clamping voltage (VC) at 103 A peak pulse current, and AEC-Q101 qualification for automotive use. It protects MOSFETs, ICs, and sensor signal lines against lightning-induced and inductive-switching transients in automotive powertrain and body electronics.
For engineers reviewing the SM15T10AHM3_A/I datasheet, SM15T10AHM3_A/I pinout, SM15T10AHM3_A/I application, or SM15T10AHM3_A/I equivalent, this page delivers verified electrical specs, thermal derating behavior, clamping performance under 10/1000 μs surge, and AEC-Q101-compliant packaging details essential for automotive-grade ESD and surge protection design.
Technical Context
This device operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds 10.2 V (VWM) and fully clamps at ≤14.5 V (VC) during 10/1000 μs transients up to 1500 W. Its glass-passivated junction ensures stable breakdown and low leakage (<10 μA at VWM).
Designed for surface-mount placement on 8.0 mm × 8.0 mm copper pads, it achieves 75 °C/W junction-to-ambient thermal resistance and supports 200 A non-repetitive forward surge (IFSM). The HM3 suffix confirms halogen-free, RoHS-compliant, AEC-Q101-qualified construction with JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 10 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working margin for 12 V automotive systems. |
| VBR (Breakdown Voltage) | 9.5–10.5 V at 1.0 mA - Tight tolerance ensures predictable turn-on across temperature and production lots. |
| VC (Clamping Voltage) | 14.5 V at IPPM = 103 A (10/1000 μs) - Limits downstream voltage stress to protect 16 V-rated ICs and MOSFETs. |
| PPPM (Peak Pulse Power) | 1500 W - Sustains high-energy surges from load-dump or ISO 7637-2 Pulse 5a without degradation. |
| TJ max | 150 °C - Enables operation in under-hood environments with validated thermal derating above 25 °C ambient. |
| Package | SMC (DO-214AB) - Industry-standard 7.75 mm × 6.22 mm outline compatible with automated SMT placement and reflow profiles up to 260 °C peak. |
| AEC-Q101 Qualified | Yes - Validated for automotive applications including engine control units, ADAS sensors, and infotainment power rails. |
Pinout & Package
SMC (DO-214AB) package with cathode band marking on one end; two-terminal device with anode and cathode leads. Matte tin-plated terminals meet J-STD-002 solderability and JESD 22-B102 reliability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Reverse-biased terminal during normal operation | Connects to protected line; clamping occurs when voltage exceeds VWM relative to anode. |
| Anode | Reference/ground return path | Typically tied to system ground or low-impedance return plane; defines clamping reference point. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Withstands ISO 7637-2 Pulse 5a load-dump events in 12 V vehicle architectures without failure. |
| Low clamping ratio (VC/VBR ≈ 1.43) | Minimizes overvoltage stress on downstream silicon while maintaining fast response time (<1 ns). |
| Halogen-free, RoHS-compliant HM3 construction | Meets automotive environmental compliance requirements and JESD 201 Class 2 whisker resistance. |
| MSL Level 1 rating (260 °C peak) | Supports standard lead-free reflow without moisture sensitivity concerns or baking requirements. |
| Glass-passivated junction | Ensures long-term stability of VBR and low leakage (<10 μA) across temperature and lifetime. |
Applications
| Automotive Powertrain ECUs | ADAS Camera Sensor Interfaces |
|---|---|
Use Scenario: Protecting microcontroller I/O and CAN transceiver power rails from alternator load-dump transients in engine control modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 12 V supply and ground, clamping surges before they reach LDOs and MCU VDD pins. Use Value: Maintains system uptime by preventing latch-up or permanent damage during 12 V system transients exceeding 40 V for 400 ms. |
Use Scenario: Safeguarding FPD-Link III or GMSL serial video interface lines from ESD and cable discharge events in surround-view camera modules. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted directly at connector entry point to shunt fast transients before signal integrity degrades. Use Value: Preserves bit-error rate below 1e-12 by limiting transient-induced jitter and avoiding receiver desynchronization. |
| Industrial Motor Drive I/O Protection | Telecom Power Supply Inputs |
Use Scenario: Shielding PLC digital input circuits from inductive kickback generated by solenoid and relay coils in factory automation systems. IC Role / Device Role / Timing Role: Standoff-voltage-matched TVS connected across optocoupler input terminals to absorb 600 V/100 A switching spikes. Use Value: Extends optocoupler lifetime by reducing cumulative junction stress and eliminating false triggering during coil de-energization. |
Use Scenario: Guarding AC-DC adapter primary-side rectifier outputs against lightning-induced surges entering via telecom line interfaces. IC Role / Device Role / Timing Role: Primary-side TVS placed after bridge rectifier but before bulk capacitor to clamp common-mode surges before filtering stage. Use Value: Prevents overvoltage failure of electrolytic capacitors and reduces need for oversized MOVs in compact telecom adapters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A-E3/57T | Lower PPPM (400 W), same VWM (10 V), SMA package (smaller footprint, higher RθJA = 110 °C/W) | Limited to lower-energy threats (IEC 61000-4-5 Level 3); unsuitable for automotive load-dump per ISO 7637-2. | Select only for space-constrained consumer or industrial applications where peak surge energy remains below 400 W. |
| SMCJ10AHE3_A/H | Same 1500 W rating and AEC-Q101 qualification, but HE3 suffix (RoHS + AEC-Q101) vs. HM3 (halogen-free + AEC-Q101); identical electrical specs. | No functional difference; HE3 uses brominated flame retardant, HM3 uses halogen-free molding compound - required for specific OEM environmental mandates. | Choose SM15T10AHM3_A/I when halogen-free compliance is contractually mandated; otherwise SM15T10AHE3_A/H is electrically interchangeable. |
Compared with SMAJ10A-E3/57T, SM15T10AHM3_A/I delivers 275 % higher surge energy handling and automotive-grade thermal robustness; versus SM15T10AHE3_A/H, it substitutes halogen-free encapsulation while preserving all electrical and qualification attributes for stricter environmental programs.
Availability
SM15T10AHM3_A/I is available at Aetrix Electronics and suitable for automotive powertrain ECUs, ADAS sensor interfaces, and industrial motor drive I/O protection requiring stable component supply, AEC-Q101 validation, and halogen-free compliance.
Supply support for SM15T10AHM3_A/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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with emphasis on high-reliability, automotive-qualified components.
The SM15T Series was developed specifically for high-energy transient suppression in automotive and industrial environments, targeting ISO 7637-2 and IEC 61000-4-5 compliance with AEC-Q101 qualification built-in.
FAQ
What is the clamping voltage of SM15T10AHM3_A/I at its rated peak pulse current?
The SM15T10AHM3_A/I clamps to a maximum of 14.5 V when subjected to its specified 103 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured at TA = 25 °C with recommended 8.0 mm × 8.0 mm copper pad layout, and is critical for ensuring downstream ICs remain within absolute maximum voltage ratings during surge events.
Is SM15T10AHM3_A/I suitable for bidirectional transient protection?
No, SM15T10AHM3_A/I is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. For bidirectional protection, Vishay offers the CA-suffixed variant (e.g., SM15T10CA), which provides symmetrical clamping in both polarities and no polarity marking. Using SM15T10AHM3_A/I in bidirectional applications risks open-circuit failure during positive transients.
Does SM15T10AHM3_A/I meet AEC-Q101 requirements?
Yes, SM15T10AHM3_A/I is explicitly AEC-Q101 qualified, as confirmed by Vishay's ordering code structure ("HM3" suffix denotes halogen-free, RoHS-compliant, and AEC-Q101-qualified), and referenced in the "MECHANICAL DATA" section of document 88380. This qualification covers stress tests including HTGB, AC-H3TRB, and temperature cycling relevant to automotive under-hood deployment.
What is the thermal resistance of SM15T10AHM3_A/I, and how does it affect layout?
SM15T10AHM3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. To maintain reliability under sustained power dissipation, PCB layout must replicate this pad area; reducing pad size increases RθJA and accelerates thermal derating above 25 °C ambient, potentially violating TJ max = 150 °C limits.
How does the HM3 suffix differ from M3 or HE3 in SM15T10AHM3_A/I?
The HM3 suffix in SM15T10AHM3_A/I specifies halogen-free, RoHS-compliant construction with AEC-Q101 qualification. In contrast, M3 denotes halogen-free + RoHS without AEC-Q101, and HE3 denotes RoHS + AEC-Q101 with brominated flame retardant. Thus, SM15T10AHM3_A/I uniquely satisfies both environmental (halogen-free) and automotive reliability (AEC-Q101) mandates simultaneously.
SM15T10AHM3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- SM15T, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8.55V
- Voltage - Breakdown (Min):
- 9.5V
- Voltage - Clamping (Max) @ Ipp:
- 14.5V
- Current - Peak Pulse (10/1000µs):
- 103A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SM15T10AHM3_A/I FAQ
1.How can I place an order for SM15T10AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T10AHM3_A/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 SM15T10AHM3_A/I reliable?
The price and inventory of SM15T10AHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T10AHM3_A/I is usually 5 days.
3.What payment methods are accepted for SM15T10AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T10AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T10AHM3_A/I?
SM15T10AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T10AHM3_A/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 SM15T10AHM3_A/I?
For technical support, including SM15T10AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T10AHM3_A/I requirements.
6.How does Aetrix verify that SM15T10AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SM15T10AHM3_A/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 SM15T10AHM3_A/I meets industry standards.
7.What is the process for return or replacement of SM15T10AHM3_A/I?
All SM15T10AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SM15T10AHM3_A/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 SM15T10AHM3_A/I part is unused and in its original packaging.
Return procedure for SM15T10AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T10AHM3_A/I Tags
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