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Vishay General Semiconductor - Diodes Division SM15T7V5AHE3/57T
- Part No.:
- SM15T7V5AHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T7V5AHE3/57T.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,501
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Product details
Overview
SM15T7V5AHE3/57T from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection on DC power rails and signal lines. It features 7.13 V minimum breakdown voltage (VBR), 6.40 V stand-off voltage (VWM), 11.3 V maximum clamping voltage at 132 A peak pulse current (IPPM), and 1500 W peak pulse power rating with 10/1000 μs waveform - used to protect automotive ECUs, industrial I/O interfaces, and sensor front-ends against lightning-induced and inductive-switching transients.
For engineers reviewing the SM15T7V5AHE3/57T datasheet, SM15T7V5AHE3/57T pinout, SM15T7V5AHE3/57T application, or SM15T7V5AHE3/57T equivalent, key selection criteria include verified clamping performance at rated IPPM, AEC-Q101 qualification status, unidirectional polarity marking, thermal resistance (RθJA = 75 °C/W), and compatibility with automated SMT placement on standard PCB pad layouts.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal bias it presents <1 μA leakage at 6.40 V, then rapidly avalanches when transient voltage exceeds 7.13 V to clamp the line at ≤11.3 V. Its glass-passivated junction ensures stable breakdown and low leakage over temperature (-65 °C to +150 °C).
The device is rated for 1500 W peak pulse power with 10/1000 μs waveform and 200 A non-repetitive forward surge current (IFSM). Its SMC package delivers low inductance and meets MSL level 1 (260 °C reflow peak), supporting robust automated assembly in automotive and industrial production environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.40 V - Maximum continuous reverse operating voltage before leakage exceeds 500 μA; defines safe DC rail margin. |
| VBR (min) | 7.13 V at 10 mA - Minimum breakdown threshold ensuring reliable turn-on during transients above nominal supply. |
| VC @ IPPM | 11.3 V at 132 A - Clamped voltage during 10/1000 μs surge; determines protected circuit's maximum stress level. |
| PPPM | 1500 W - Peak pulse power handling capability; validates suitability for lightning and motor-switching threats. |
| RθJA | 75 °C/W - Junction-to-ambient thermal resistance; informs derating requirements for sustained power dissipation. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive and industrial enclosures. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode indicated by band; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts avalanche current to ground during overvoltage events. |
| Anode (unbanded end) | Reference node | Typically tied to system ground or lower-potential rail; completes shunt path for clamping action. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements - supports ECU, body control, and ADAS module designs. |
| 1500 W peak pulse power | Withstands IEC 61000-4-5 Level 4 (4 kV) surges without degradation when mounted on 8 mm × 8 mm copper pads. |
| Glass-passivated junction | Ensures stable VBR tolerance (±5%) and low leakage (<500 μA at VWM) across temperature and lifetime. |
| Low-inductance SMC package | Minimizes voltage overshoot during fast-rising transients (e.g., <100 ns edges), improving clamping fidelity. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 5 V or 12 V power inputs of engine control units (ECUs) and infotainment modules against load-dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between power rail and chassis ground to clamp surges before they reach downstream regulators and microcontrollers. Use Value: Limits rail voltage to ≤11.3 V during 132 A transients, preventing latch-up or permanent damage to 5 V logic and CAN transceivers. |
Use Scenario: Safeguarding analog outputs and digital I/O lines of pressure, temperature, and position sensors in PLCs and motor drives. IC Role / Device Role / Timing Role: Point-of-entry protection on sensor signal lines exposed to long cable runs and proximity to switching actuators. Use Value: Suppresses inductive kickback from solenoid valves and relay coils, preserving ADC accuracy and interface IC integrity. |
| Telecom Line Card Surge Protection | Consumer Device DC Input Protection |
Use Scenario: Shielding Ethernet PHY power supplies and auxiliary rails in base station line cards from induced lightning surges. IC Role / Device Role / Timing Role: Primary-level TVS on 3.3 V/5 V bias rails feeding Ethernet magnetics and PHY ICs. Use Value: Absorbs up to 1500 W energy within 1 ms, maintaining PHY functionality during outdoor cabinet surges per ITU-T K.20/21. |
Use Scenario: Hardening USB-C and barrel-jack DC inputs of smart home hubs, set-top boxes, and audio amplifiers against user-insertion spikes and adapter faults. IC Role / Device Role / Timing Role: First-line defense on input rectifier output or LDO input to prevent overvoltage propagation into SoC power domains. Use Value: Clamps 100 V transients to <12 V in <1 ns, avoiding brownout resets and capacitor overstress in cost-sensitive consumer BOMs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.5A-E3/57T | Lower PPPM (400 W), higher VC (12.5 V @ 32.4 A), SMA package (smaller footprint, higher RθJA). | Not AEC-Q101 qualified; limited to commercial-grade consumer/industrial use. | Select when space-constrained layout permits smaller package and surge threat level is ≤IEC 61000-4-5 Level 2. |
| SMCJ7.5AHE3/57T | Same SMC package, identical VWM/VBR/VC, but rated for 3000 W PPPM; higher IPPM (243 A). | Higher power rating increases cost and thermal mass; may require larger copper area for full derating. | Choose when protecting against severe lightning surges (e.g., outdoor telecom, solar inverters) where 1500 W margin is insufficient. |
Compared with SMAJ7.5A-E3/57T, SM15T7V5AHE3/57T delivers 3.75× higher surge power handling and automotive qualification; versus SMCJ7.5AHE3/57T, it offers optimized cost-performance balance for mid-tier industrial and automotive applications without over-specifying power capacity.
Availability
SM15T7V5AHE3/57T is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface protection, and telecom line card surge hardening requiring stable component supply, AEC-Q101 compliance, and consistent SMC (DO-214AB) form factor.
Supply support for SM15T7V5AHE3/57T 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, power efficiency, and automotive-grade validation.
The SM15T Series is engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where failure modes must be controlled and clamping precision is critical.
FAQ
What is the clamping voltage of SM15T7V5AHE3/57T at its rated peak pulse current?
The SM15T7V5AHE3/57T has a maximum clamping voltage (VC) of 11.3 V when subjected to its rated peak pulse current of 132 A with a 10/1000 μs waveform. This value is measured under standardized test conditions per JEDEC standards and defines the upper voltage limit imposed on the protected circuit during surge events. The SM15T7V5AHE3/57T maintains this clamping performance across its specified operating temperature range.
Is SM15T7V5AHE3/57T qualified for automotive applications?
Yes, SM15T7V5AHE3/57T is AEC-Q101 qualified, as confirmed by its HE3 suffix and documentation in Vishay's official datasheet (Document Number: 88380). This qualification covers stress tests including high-temperature operating life, temperature cycling, and humidity bias HAST, validating its use in automotive powertrain, body electronics, and ADAS modules. The SM15T7V5AHE3/57T meets the reliability requirements for under-hood and cabin-mounted systems.
What does the "HE3" suffix indicate in SM15T7V5AHE3/57T?
The "HE3" suffix in SM15T7V5AHE3/57T denotes RoHS-compliant construction with AEC-Q101 qualification and matte tin-plated leads compliant with J-STD-002. It distinguishes this variant from commercial-grade E3 versions and halogen-free HM3 variants. The "HE3" marking confirms that the SM15T7V5AHE3/57T is intended for automotive and high-reliability industrial applications requiring extended temperature operation and process-controlled assembly.
How does SM15T7V5AHE3/57T differ from bidirectional TVS diodes like SM15T7V5CAHE3/57T?
SM15T7V5AHE3/57T is unidirectional and functions only in reverse-bias mode - it clamps positive transients on the cathode side while blocking forward current. In contrast, SM15T7V5CAHE3/57T is bidirectional and clamps transients of either polarity, making it suitable for AC lines or differential signal pairs. The SM15T7V5AHE3/57T's unidirectional configuration provides lower leakage and tighter VBR tolerance, ideal for DC power rail protection.
What is the thermal resistance of SM15T7V5AHE3/57T, and how does it affect layout design?
The SM15T7V5AHE3/57T 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. This value requires PCB designers to allocate sufficient copper area for heat dissipation during repetitive surge events or elevated ambient temperatures. For continuous operation near TJ max (150 °C), derating curves in the SM15T7V5AHE3/57T datasheet must be applied to ensure safe thermal margins.
SM15T7V5AHE3/57T 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):
- 6.4V
- Voltage - Breakdown (Min):
- 7.13V
- Voltage - Clamping (Max) @ Ipp:
- 11.3V
- Current - Peak Pulse (10/1000µs):
- 132A
- 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)
SM15T7V5AHE3/57T FAQ
1.How can I place an order for SM15T7V5AHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T7V5AHE3/57T 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 SM15T7V5AHE3/57T reliable?
The price and inventory of SM15T7V5AHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T7V5AHE3/57T is usually 5 days.
3.What payment methods are accepted for SM15T7V5AHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T7V5AHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T7V5AHE3/57T?
SM15T7V5AHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T7V5AHE3/57T 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 SM15T7V5AHE3/57T?
For technical support, including SM15T7V5AHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T7V5AHE3/57T requirements.
6.How does Aetrix verify that SM15T7V5AHE3/57T is sourced from the original manufacturer or authorized distributors?
All SM15T7V5AHE3/57T 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 SM15T7V5AHE3/57T meets industry standards.
7.What is the process for return or replacement of SM15T7V5AHE3/57T?
All SM15T7V5AHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SM15T7V5AHE3/57T, 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 SM15T7V5AHE3/57T part is unused and in its original packaging.
Return procedure for SM15T7V5AHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T7V5AHE3/57T Tags
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