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Vishay General Semiconductor - Diodes Division SM15T10AHM3/H
- Part No.:
- SM15T10AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T10AHM3/H.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,091
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Product details
Overview
SM15T10AHM3/H 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), 14.5 V maximum clamping voltage at 103 A IPPM, and 8.55 V stand-off voltage. It protects MOSFETs, ICs, and sensor signal lines against lightning-induced and inductive-switching transients in automotive and industrial power electronics.
For engineers reviewing the SM15T10AHM3/H datasheet, SM15T10AHM3/H pinout, SM15T10AHM3/H application, or SM15T10AHM3/H equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, clamping performance under standardized waveforms, and real-world design implications for overvoltage protection layout and thermal derating.
Technical Context
The SM15T10AHM3/H employs a glass-passivated silicon junction optimized for low dynamic impedance and fast response to transient events. Its unidirectional polarity enables integration into DC-biased circuits where reverse conduction must be blocked until breakdown occurs at 9.5–10.5 V.
Designed for high-source-impedance systems, it clamps reliably at ≤14.5 V when subjected to 103 A (10/1000 μs), with thermal resistance RθJL = 15 °C/W enabling stable operation up to TJ = 150 °C. The device meets J-STD-020 MSL Level 1 and is halogen-free, RoHS-compliant, and AEC-Q101 qualified.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 μs) | 1500 W - sustains single high-energy transients without failure, typical of lightning surge immunity per IEC 61000-4-5 |
| Stand-off Voltage (VWM) | 8.55 V - maximum continuous reverse voltage before leakage exceeds 10 μA; sets operating margin below breakdown |
| Breakdown Voltage (VBR) | 9.5–10.5 V at 1.0 mA - defines precise conduction onset; ensures predictable turn-on during overvoltage events |
| Clamping Voltage (VC) | 14.5 V at 103 A (10/1000 μs) - limits downstream voltage stress; critical for protecting 12 V rail components |
| Peak Pulse Current (IPPM) | 103 A - quantifies maximum transient current the device can shunt while maintaining clamping integrity |
| Junction Temperature Range | −65 °C to +150 °C - supports under-hood automotive and industrial environments without derating loss |
| Package | SMC (DO-214AB) - surface-mount footprint with 7.75 mm × 6.22 mm body; compatible with automated placement and reflow |
Pinout & Package
SM15T10AHM3/H uses the standard SMC (DO-214AB) package: molded epoxy case with matte tin-plated leads, cathode indicated by a band on the body. Terminals are designed for soldering per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection in unidirectional configuration | Connected to ground or low-potential node; completes current path during transient clamping |
| Cathode | High-side connection with polarity marking | Banded end connects to protected line (e.g., 12 V supply); blocks reverse current until breakdown |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| Halogen-free & RoHS-compliant | Meets environmental compliance requirements for Tier-1 automotive and industrial OEMs without compromising thermal performance |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes voltage overshoot during transients-critical for safeguarding 12 V logic and analog interfaces |
| MSL Level 1 rating | Enables standard reflow assembly without moisture sensitivity concerns; peak temperature tolerance up to 260 °C |
| 1500 W capability with low inductance | Reduces parasitic ringing during fast transients; improves protection fidelity for sub-100 ns edge rates |
Applications
| Automotive Power Distribution | Industrial Motor Drive I/O Protection |
|---|---|
Use Scenario: Protecting 12 V supply rails feeding ECUs, body control modules, and LIN bus transceivers from load-dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery input and local regulator input to clamp surges before LDO or DC/DC stage. Use Value: Clamps to 14.5 V at 103 A, preventing damage to downstream 16 V-rated regulators and ensuring system reset immunity per ISO 7637-2 Pulse 5a. |
Use Scenario: Shielding digital I/O lines connected to PLC outputs or relay drivers from inductive kickback during coil de-energization. IC Role / Device Role / Timing Role: Point-of-use TVS mounted directly at connector entry to suppress >1 kV transients induced by 24 V solenoid switching. Use Value: 1500 W rating handles repetitive 10/1000 μs threats without degradation; low RθJL enables sustained operation in enclosed cabinets. |
| Consumer Appliance Mainboard Protection | Telecom Power Interface |
Use Scenario: Safeguarding microcontroller GPIOs and communication buses (UART, I²C) on washing machine mainboards exposed to pump motor noise. IC Role / Device Role / Timing Role: Localized TVS on each signal line near MCU pins to limit coupled transients to <15 V. Use Value: 8.55 V VWM provides headroom above 5 V/3.3 V logic levels while enabling fast response (<1 ns) to ESD and switching spikes. |
Use Scenario: Front-end protection for PoE-powered devices receiving 48 V DC input via RJ45 jack, subject to lightning-induced surges on Ethernet pairs. IC Role / Device Role / Timing Role: Primary unidirectional clamp on DC input rail upstream of DC/DC converter and isolation circuitry. Use Value: Halogen-free construction satisfies telecom flame-safety standards (UL 94 V-0), and 1500 W rating aligns with IEC 61000-4-5 Level 4 requirements. |
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 PPPM (400 W), same VWM (8.55 V), higher VC (17.0 V at 24.9 A) | Limited to lower-energy threats; unsuitable for ISO 7637-2 Pulse 5 or lightning-level surges | Select SMAJ10A only for cost-sensitive consumer applications with known low-impedance transients |
| SMCJ10A | Same package (SMC), identical VWM/VC specs, but commercial-grade (non-AEC-Q101) and halogen-containing | Lacks automotive qualification; not approved for under-hood use per OEM requirements | Choose SMCJ10A for industrial non-automotive designs where AEC-Q101 is not mandated |
Compared with SMAJ10A and SMCJ10A, SM15T10AHM3/H uniquely combines 1500 W surge handling, AEC-Q101 qualification, and halogen-free compliance-making it the only option among the three validated for automotive power rail protection with full regulatory alignment.
Availability
SM15T10AHM3/H is available at Aetrix Electronics and suitable for automotive ECU protection, industrial motor drive I/O shielding, and telecom power interface surge suppression requiring stable component supply across multi-year production cycles.
Supply support for SM15T10AHM3/H 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 efficiency, and application-specific validation.
The SM15T Series was engineered specifically for high-reliability transient suppression in harsh environments-including automotive power systems and industrial controls-where consistent clamping performance and long-term stability under thermal cycling are mandatory.
FAQ
What is the clamping voltage of SM15T10AHM3/H at its rated peak pulse current?
The SM15T10AHM3/H has a maximum clamping voltage (VC) of 14.5 V when subjected to its rated peak pulse current of 103 A using the standard 10/1000 μs waveform. This value is measured under specified test conditions (mounted on 8.0 mm × 8.0 mm copper pads) and defines the upper voltage limit imposed on protected circuitry during surge events. The SM15T10AHM3/H maintains this clamping performance across its full operating temperature range.
Is SM15T10AHM3/H qualified for automotive applications?
Yes, SM15T10AHM3/H is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HM3" and documentation in datasheet 88380. It undergoes rigorous stress testing-including temperature cycling, high-temperature reverse bias, and ESD-to meet automotive reliability requirements. The SM15T10AHM3/H is approved for under-hood and chassis-mounted applications where ambient temperatures reach 125 °C and transient immunity per ISO 7637-2 is required.
What does the "HM3" suffix indicate in SM15T10AHM3/H?
The "HM3" suffix in SM15T10AHM3/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from commercial-grade versions (e.g., "M3") and non-halogen-free automotive variants (e.g., "HE3"). The "H" prefix confirms automotive qualification, while "M3" specifies halogen-free materials meeting IEC 61249-2-21 standards-critical for OEM compliance in Europe and North America. SM15T10AHM3/H is traceable to Vishay's certified production lots.
How does SM15T10AHM3/H compare to bidirectional TVS diodes like SM15T10CA?
SM15T10AHM3/H is unidirectional and blocks reverse current until breakdown, making it suitable for DC-biased lines such as 12 V power rails. In contrast, SM15T10CA is bidirectional and conducts in both directions-used for AC or floating signal lines. The SM15T10AHM3/H offers tighter VWM/VBR matching and lower leakage in reverse bias, while SM15T10CA provides symmetrical clamping but higher reverse leakage at low voltages. Selection depends strictly on circuit polarity requirements.
What is the thermal resistance from junction to lead (RθJL) for SM15T10AHM3/H?
The SM15T10AHM3/H has a typical thermal resistance from junction to lead (RθJL) of 15 °C/W, as specified in Vishay's datasheet 88380. This parameter enables accurate thermal modeling when the device is soldered to PCB copper planes or heatsinks. With RθJL = 15 °C/W and PD = 6.5 W, the junction-to-lead temperature rise is ~97.5 °C at full continuous dissipation-confirming robust thermal performance in compact layouts. SM15T10AHM3/H maintains this rating across its full -65 °C to +150 °C operating range.
SM15T10AHM3/H 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/H FAQ
1.How can I place an order for SM15T10AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T10AHM3/H 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/H reliable?
The price and inventory of SM15T10AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T10AHM3/H is usually 5 days.
3.What payment methods are accepted for SM15T10AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T10AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T10AHM3/H?
SM15T10AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T10AHM3/H 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/H?
For technical support, including SM15T10AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T10AHM3/H requirements.
6.How does Aetrix verify that SM15T10AHM3/H is sourced from the original manufacturer or authorized distributors?
All SM15T10AHM3/H 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/H meets industry standards.
7.What is the process for return or replacement of SM15T10AHM3/H?
All SM15T10AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SM15T10AHM3/H, 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/H part is unused and in its original packaging.
Return procedure for SM15T10AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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