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Vishay General Semiconductor - Diodes Division SM15T10AHM3/I
- Part No.:
- SM15T10AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T10AHM3/I.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,223
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Product details
Overview
SM15T10AHM3/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) in SMC (DO-214AB) package, rated for 1500 W peak pulse power (10/1000 μs), 10 V stand-off voltage (VWM), 14.5 V maximum clamping voltage at IPPM, and 103 A peak pulse current - designed to protect MOSFETs, ICs, and sensor signal lines against lightning-induced and inductive-switching transients in automotive and industrial systems.
For engineers reviewing the SM15T10AHM3/I datasheet, SM15T10AHM3/I pinout, SM15T10AHM3/I application, or SM15T10AHM3/I equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), polarity marking convention, and real-world clamping performance under standardized surge waveforms.
Technical Context
The SM15T10AHM3/I employs a glass-passivated silicon junction optimized for low-inductance transient suppression with fast response to 10/1000 μs surges. Its unidirectional polarity features a cathode band marking and operates within -65 °C to +150 °C junction temperature range.
It delivers 14.5 V clamping voltage at 103 A peak pulse current, with 6.5 W steady-state power dissipation on infinite heatsink at 50 °C and 200 A non-repetitive forward surge rating (10 ms half-sine). Thermal resistance from junction to lead is 15 °C/W, supporting reliable operation under repeated transient stress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for 12 V rail protection. |
| VBR min/max | 9.5 V / 10.5 V at 1.0 mA - Confirmed breakdown threshold ensures predictable turn-on during overvoltage events. |
| VC @ IPPM | 14.5 V - Clamping voltage at 103 A (10/1000 μs); limits downstream voltage stress to safe levels for 12 V logic interfaces. |
| PPPM | 1500 W - Peak pulse power handling capability; suitable for IEC 61000-4-5 Level 4 (4 kV) surge protection. |
| IPPM | 103 A - Peak pulse current rating under 10/1000 μs waveform; validates robustness against lightning-induced transients. |
| RθJA | 75 °C/W - Junction-to-ambient thermal resistance; determines required PCB copper area for thermal management at 6.5 W DC dissipation. |
| TJ max | +150 °C - Maximum junction temperature; supports operation in under-hood automotive environments. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, halogen-free, RoHS-compliant, MSL level 1 (260 °C reflow peak), matte tin-plated leads solderable per J-STD-002/JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connects to protected line; conducts surge current to ground when reverse-biased beyond VBR. |
| Anode | Reference/ground return path | Typically tied to system ground; completes conduction path during clamping event. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Enables compliance with IEC 61000-4-5 surge immunity requirements for industrial and automotive electronics. |
| Glass-passivated chip junction | Ensures stable leakage current (<10 μA at VWM) and long-term reliability under thermal cycling. |
| AEC-Q101 qualified (HM3 suffix) | Validates suitability for automotive powertrain and body electronics applications requiring zero-defect reliability. |
| Low inductance design | Minimizes voltage overshoot during fast-rising transients (e.g., <10 ns rise time), improving clamping fidelity. |
| Halogen-free & RoHS-compliant | Meets environmental compliance mandates for global OEM supply chains without compromising surge performance. |
Applications
| Automotive Body Control Module | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting LIN bus transceivers and door actuator drivers from load-dump and inductive kickback in 12 V vehicle networks. IC Role / Device Role / Timing Role: Unidirectional TVS placed between LIN line and ground to clamp transients up to ±100 V. Use Value: Limits clamped voltage to 14.5 V, ensuring transceiver survival under ISO 7637-2 Pulse 1/2a/5a stress conditions. |
Use Scenario: Shielding 24 V digital input modules from relay coil flyback and ESD events in factory automation cabinets. IC Role / Device Role / Timing Role: Standoff-rated TVS on each input channel, absorbing >1 kV/40 Ω surges per IEC 61000-4-4. Use Value: Delivers 103 A peak current handling with 14.5 V clamping, preventing false triggering of optocouplers and microcontrollers. |
| Automotive Sensor Signal Lines | Telecom Power Supply Input |
Use Scenario: Safeguarding analog outputs of pressure/temperature sensors connected to engine control units via long harnesses. IC Role / Device Role / Timing Role: Localized TVS at sensor connector to suppress coupled transients from adjacent high-current wiring. Use Value: Fast response and low clamping voltage preserve signal integrity for 0–5 V ratiometric sensor outputs. |
Use Scenario: Front-end protection for AC/DC power supplies feeding base station radios exposed to lightning surges on outdoor lines. IC Role / Device Role / Timing Role: Primary-level TVS on DC input rail upstream of bulk capacitors and regulators. Use Value: 1500 W rating handles multi-kA induced surges while maintaining <15 V clamping to avoid upstream regulator shutdown. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A | Lower peak power (400 W), same VWM/VC, SMA package (smaller footprint, higher RθJA = 110 °C/W) | Not qualified to AEC-Q101; limited to commercial-grade consumer/industrial use | Select when cost and board space are critical and surge threat level is ≤IEC 61000-4-5 Level 2. |
| SMCJ10A | Same 1500 W rating and SMC package, but standard M3 suffix (non-AEC-Q101, no halogen-free guarantee) | Lacks automotive qualification and halogen-free certification; unsuitable for Tier 1 automotive BOMs | Choose for industrial applications where AEC-Q101 and halogen-free compliance are not mandated. |
Compared with SMAJ10A and SMCJ10A, the SM15T10AHM3/I uniquely combines AEC-Q101 qualification, halogen-free construction, and 1500 W surge capability in a single SMC package - making it the only option meeting full automotive production requirements for 12 V system transient protection.
Availability
SM15T10AHM3/I is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, and telecom power supply inputs requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for SM15T10AHM3/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 diodes, rectifiers, and protection devices with emphasis on reliability, power handling, and automotive qualification.
The SM15T Series was engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where failure modes must be controlled and clamping precision is critical.
FAQ
What is the clamping voltage of SM15T10AHM3/I at its rated peak pulse current?
The SM15T10AHM3/I has a maximum clamping voltage (VC) of 14.5 V at 103 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88380 and ensures downstream 12 V components remain within safe operating limits during surge events. The SM15T10AHM3/I maintains this clamping performance across its specified temperature range.
Is SM15T10AHM3/I qualified for automotive applications?
Yes, SM15T10AHM3/I is AEC-Q101 qualified, as confirmed by the "HM3" suffix in its ordering code - indicating halogen-free, RoHS-compliant, and automotive-grade construction. It meets the stress test requirements for temperature cycling, humidity, mechanical shock, and surge endurance defined in AEC-Q101, making it suitable for under-hood and body electronics in passenger vehicles and commercial vehicles.
What does the "I" suffix mean in SM15T10AHM3/I?
The "I" suffix in SM15T10AHM3/I denotes the packaging configuration: 3500 units per 13-inch diameter plastic tape and reel (package code "9AT"). This is distinct from the "H" suffix (850 units per 7-inch reel, code "57T"). Both share identical electrical and thermal specifications; the "I" variant supports high-volume automated assembly with extended reel length and reduced changeover frequency.
How does SM15T10AHM3/I differ from SM15T10A-E3/57T?
The SM15T10AHM3/I differs from SM15T10A-E3/57T in three key ways: (1) HM3 indicates halogen-free and AEC-Q101 qualification, whereas E3 is commercial-grade only; (2) "I" specifies 13″ tape-and-reel (3500 pcs), versus "H"/"57T" for 7″ reel (850 pcs); (3) HM3 uses whisker-tested matte tin plating per JESD 201 Class 2, while E3 meets baseline J-STD-002 solderability only. The SM15T10AHM3/I is not a drop-in replacement for E3 in automotive designs.
What is the thermal resistance of SM15T10AHM3/I, and how does it affect PCB layout?
The SM15T10AHM3/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 TJ ≤ 150 °C at 6.5 W steady-state dissipation, designers must allocate ≥1.2 cm² of 2-oz copper per pad. Reducing pad size increases RθJA nonlinearly - undersized layouts risk thermal runaway during sustained overvoltage conditions. The SM15T10AHM3/I datasheet provides exact pad dimensions in Figure 4.
SM15T10AHM3/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:
- Discontinued at Digi-Key
- 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/I FAQ
1.How can I place an order for SM15T10AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T10AHM3/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/I reliable?
The price and inventory of SM15T10AHM3/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/I is usually 5 days.
3.What payment methods are accepted for SM15T10AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T10AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T10AHM3/I?
SM15T10AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T10AHM3/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/I?
For technical support, including SM15T10AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T10AHM3/I requirements.
6.How does Aetrix verify that SM15T10AHM3/I is sourced from the original manufacturer or authorized distributors?
All SM15T10AHM3/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/I meets industry standards.
7.What is the process for return or replacement of SM15T10AHM3/I?
All SM15T10AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SM15T10AHM3/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/I part is unused and in its original packaging.
Return procedure for SM15T10AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T10AHM3/I Tags
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