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Vishay General Semiconductor - Diodes Division SM15T10AHE3/9AT
- Part No.:
- SM15T10AHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T10AHE3/9AT.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,757
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Product details
Overview
SM15T10AHE3/9AT from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, rated for 1500 W peak pulse power (10/1000 μs), 10.5 V breakdown voltage (VBR min), 8.55 V stand-off voltage (VWM), and 14.5 V clamping voltage (VC) at 103 A peak pulse current - used to protect automotive sensor signal lines against inductive switching transients.
For engineers reviewing the SM15T10AHE3/9AT datasheet, SM15T10AHE3/9AT pinout, SM15T10AHE3/9AT application, or SM15T10AHE3/9AT equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 150 °C max junction temperature, low-inductance SMC package, and compliance with IEC 61000-4-2/4-4/4-5 surge immunity standards.
Technical Context
This TVS diode operates as a clamping device in reverse-biased configuration, triggering when transient voltage exceeds VBR = 9.50–10.5 V at 1.0 mA test current. Its failure mode under overstress is short-circuit, ensuring system-level fault containment.
Designed for high-energy transient suppression, it delivers 1500 W peak pulse power with 10/1000 μs waveform, exhibits 75 °C/W junction-to-ambient thermal resistance, and maintains ≤10 μA reverse leakage at VWM = 8.55 V - enabling reliable protection in automotive ECUs and industrial I/O interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.55 V - maximum continuous reverse operating voltage before clamping begins; sets safe operating margin below VBR. |
| VBR (min/max) | 9.50 V / 10.5 V at 1.0 mA - precise breakdown threshold defining transient detection sensitivity and timing. |
| VC @ IPPM | 14.5 V at 103 A - clamped voltage during 1500 W surge; limits downstream IC stress to safe levels. |
| PPPM | 1500 W (10/1000 μs) - energy-handling capacity sufficient for lightning-induced surges on automotive CAN/LIN lines. |
| TJ max | 150 °C - enables operation in under-hood automotive environments without derating at 85 °C ambient. |
| AEC-Q101 | Qualified - certified for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, RoHS-compliant and halogen-free (HE3 suffix), MSL Level 1, 260 °C reflow peak.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts surge current to ground when VAK > VBR. |
| Anode | Reference/ground return path | Typically tied to system ground; completes clamping loop during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Supports robust protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 4 surges. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes voltage overshoot across protected ICs, reducing risk of latch-up or gate oxide damage. |
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity stress. |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive use including engine control units, ADAS sensors, and body electronics modules. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting LIN bus transceivers and Hall-effect position sensors in engine compartments exposed to load-dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between signal line and chassis ground to limit transient voltage to <14.5 V. Use Value: Prevents permanent damage to 5 V/3.3 V sensor interface ICs during 100 V/500 ms load-dump events per ISO 16750-2. |
Use Scenario: Shielding analog input channels of programmable logic controllers from motor drive noise and relay coil flyback. IC Role / Device Role / Timing Role: Standoff-clamp TVS installed at terminal block entry point to shunt >1 kV/1 A transients before reaching ADC front-end. Use Value: Maintains signal integrity by limiting clamped voltage to 14.5 V while surviving repeated 1500 W surges per IEC 61000-4-4. |
| Telecom Line Interface | Consumer Power Adapter ESD Protection |
Use Scenario: Safeguarding RS-485 transceivers in outdoor telecom cabinets subjected to lightning-induced surges on twisted-pair lines. IC Role / Device Role / Timing Role: Primary surge clamp on differential pair, coordinated with secondary GDT or MOV for staged protection. Use Value: Achieves <10 ns response time and clamps 10/1000 μs surges to 14.5 V, meeting ITU-T K.20/21 immunity requirements. |
Use Scenario: ESD and surge protection on DC input rails of USB-C PD adapters handling 20 V/5 A inputs. IC Role / Device Role / Timing Role: Secondary-level TVS after primary fuse/MOV, absorbing residual 1500 W pulses not filtered upstream. Use Value: Enables UL 62368-1 compliance by limiting transient energy delivered to controller ICs to <10 mJ per event. |
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/VBR, SMA package (smaller footprint, higher RθJA = 110 °C/W) | Limited to lower-energy transients (IEC 61000-4-2 ±8 kV contact only); unsuitable for ISO 7637-2 Pulse 5a | Select SMAJ10A only for space-constrained consumer designs where surge threat is limited to ESD and minor switching noise. |
| 1.5KE10A | Higher VC (16.5 V), axial lead DO-201 package, non-AEC-Q101, 1500 W rating but larger board area | Not suitable for automated SMT assembly; lacks automotive qualification and moisture sensitivity level control | Choose 1.5KE10A only for legacy through-hole industrial designs requiring field-replaceability and no reflow constraints. |
Compared with SMAJ10A and 1.5KE10A, SM15T10AHE3/9AT uniquely combines AEC-Q101 qualification, SMC surface-mount compatibility, 1500 W capability, and 14.5 V clamping - making it the only option qualified for next-generation automotive sensor nodes requiring zero-defect reliability and automated manufacturing.
Availability
SM15T10AHE3/9AT is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC I/O hardening, and telecom line interface applications requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SM15T10AHE3/9AT 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, TVS devices, and optoelectronics with emphasis on high-reliability, high-power, and automotive-qualified components.
The SM15T Series was engineered specifically for automotive and industrial transient suppression, delivering 1500 W surge capability in compact SMC packages with AEC-Q101 validation and low-clamp performance critical for modern 3.3 V/5 V electronics.
FAQ
What is the clamping voltage of SM15T10AHE3/9AT at its rated peak pulse current?
The SM15T10AHE3/9AT has a maximum clamping voltage (VC) of 14.5 V at 103 A peak pulse current (IPPM) under 10/1000 μs waveform conditions. This value is measured per Fig. 1 in Vishay document 88380 and defines the upper voltage limit imposed on protected circuitry during surge events. The SM15T10AHE3/9AT maintains this clamping performance across its full operating temperature range of -65 °C to +150 °C.
Is SM15T10AHE3/9AT qualified for automotive applications?
Yes, SM15T10AHE3/9AT is AEC-Q101 qualified, as confirmed by the "HE3" suffix and documentation in Vishay's SM15T series datasheet (Rev. 09-Jan-2024, Doc. #88380). It undergoes rigorous stress testing including temperature cycling, high-temperature reverse bias, and ESD per JESD22 standards. The SM15T10AHE3/9AT is approved for use in engine control units, body electronics, and ADAS sensor modules where automotive-grade reliability is mandatory.
What is the standoff voltage rating of SM15T10AHE3/9AT?
The standoff voltage (VWM) of SM15T10AHE3/9AT is 8.55 V, representing the maximum continuous reverse voltage the device can withstand without entering breakdown. This value ensures safe operation across nominal 5 V or 12 V automotive and industrial supply rails while maintaining adequate margin below the 9.50–10.5 V breakdown range. The SM15T10AHE3/9AT exhibits ≤10 μA leakage current at this VWM level.
Does SM15T10AHE3/9AT have bidirectional capability?
No, SM15T10AHE3/9AT is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. Bidirectional variants in the same family use the "CA" suffix (e.g., SM15T10CA). The SM15T10AHE3/9AT conducts only in reverse bias during overvoltage events and must be oriented with the banded end toward the protected line - unlike bidirectional types, it does not suppress transients on AC or differential signals without external polarity management.
What package type and mounting specifications apply to SM15T10AHE3/9AT?
SM15T10AHE3/9AT uses the SMC (DO-214AB) surface-mount package, with dimensions of 7.11 mm × 6.22 mm × 2.62 mm and matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. It is rated MSL Level 1 and supports 260 °C peak reflow per J-STD-020. The recommended pad layout is 8.0 mm × 8.0 mm copper per terminal, as specified in Vishay document 88380 for thermal and surge performance.
SM15T10AHE3/9AT 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 (SMCJ)
SM15T10AHE3/9AT FAQ
1.How can I place an order for SM15T10AHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T10AHE3/9AT 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 SM15T10AHE3/9AT reliable?
The price and inventory of SM15T10AHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T10AHE3/9AT is usually 5 days.
3.What payment methods are accepted for SM15T10AHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T10AHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T10AHE3/9AT?
SM15T10AHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T10AHE3/9AT 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 SM15T10AHE3/9AT?
For technical support, including SM15T10AHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T10AHE3/9AT requirements.
6.How does Aetrix verify that SM15T10AHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SM15T10AHE3/9AT 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 SM15T10AHE3/9AT meets industry standards.
7.What is the process for return or replacement of SM15T10AHE3/9AT?
All SM15T10AHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SM15T10AHE3/9AT, 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 SM15T10AHE3/9AT part is unused and in its original packaging.
Return procedure for SM15T10AHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T10AHE3/9AT Tags
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