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Vishay General Semiconductor - Diodes Division SM15T6V8AHE3/57T
- Part No.:
- SM15T6V8AHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T6V8AHE3/57T.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,672
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Product details
Overview
SM15T6V8AHE3/57T from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection on power and signal lines. It features 6.45 V to 7.14 V breakdown voltage (VBR), 5.8 V stand-off voltage (VWM), 10.5 V clamping voltage (VC) at 143 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial control systems.
For engineers reviewing the SM15T6V8AHE3/57T datasheet, SM15T6V8AHE3/57T pinout, SM15T6V8AHE3/57T application, or SM15T6V8AHE3/57T equivalent, key selection criteria include verified unidirectional clamping performance, AEC-Q101 qualification status, SMC package thermal resistance (RθJL = 15 °C/W), and compliance with IEC 61000-4-5 surge immunity requirements.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (<1000 μA leakage at 5.8 V), then rapidly avalanches into low-impedance conduction when transient voltage exceeds VBR. Its glass-passivated junction ensures stable breakdown characteristics and low inductance for fast response to sub-microsecond transients.
The device is rated for 150 °C maximum junction temperature and derates linearly above 25 °C ambient per Fig. 2; failure mode under overstress is short-circuit, enabling fail-safe system behavior. Mounting on 8.0 mm × 8.0 mm copper pads is required to sustain full 1500 W pulse rating per JEDEC test condition.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT = 10 mA | 6.45 V min / 7.14 V max - defines precise avalanche initiation threshold for reliable overvoltage triggering |
| VWM | 5.8 V - maximum continuous reverse operating voltage before leakage exceeds 1000 μA |
| VC @ IPPM = 143 A (10/1000 μs) | 10.5 V - clamped voltage seen by protected circuit during worst-case lightning-induced surge |
| PPPM | 1500 W - peak transient energy absorption capability under standardized 10/1000 μs waveform |
| RθJL | 15 °C/W - low junction-to-lead thermal resistance enables efficient heat transfer to PCB copper |
| AEC-Q101 qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
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 VIN > VBR |
| Anode | Reference/return path | Typically tied to system ground or low-impedance return plane; completes shunt conduction path |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Enables protection against IEC 61000-4-5 Level 4 (4 kV/2 Ω) surges without external series impedance |
| Low clamping ratio (VC/VBR ≈ 1.47) | Minimizes voltage overshoot across protected ICs, reducing risk of gate oxide damage in MOSFETs |
| Glass passivated junction | Ensures stable VBR tolerance and long-term parameter drift < ±5 % over 1000 hrs HTOL |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free SMT assembly without pre-baking or special handling |
Applications
| Automotive Power Line Protection | Industrial Sensor Signal Conditioning |
|---|---|
|
Use Scenario: 12 V battery rail in engine control units exposed to load-dump transients up to 35 V/100 ms and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional shunt clamp placed between battery input and DC-DC converter input stage. Use Value: Limits voltage to ≤10.5 V during 143 A surge, preventing latch-up or burnout of downstream LDOs and microcontrollers. |
Use Scenario: Analog output line (0–5 V) from pressure sensor in factory automation PLC modules. IC Role / Device Role / Timing Role: Point-of-entry protection on sensor cable interface before op-amp buffer stage. Use Value: Clamps ESD events (IEC 61000-4-2 ±8 kV contact) within 1 ns, preserving signal integrity and ADC accuracy. |
| Telecom DC Power Feeding | Consumer Appliance Motor Drive |
|
Use Scenario: -48 V DC feed line in remote radio head (RRH) equipment subject to induced lightning surges. IC Role / Device Role / Timing Role: Bidirectional-capable variant not applicable; this unidirectional part used with polarity-aware front-end design. Use Value: Withstands 1500 W surges while maintaining <1000 μA leakage at -48 V nominal, ensuring low standby power loss. |
Use Scenario: Gate drive supply line feeding half-bridge MOSFETs in washing machine motor inverter. IC Role / Device Role / Timing Role: Clamp placed across bootstrap capacitor to suppress VDS spikes during high-di/dt switching. Use Value: 15 °C/W RθJL allows direct thermal coupling to copper pour, sustaining repeated 10/1000 μs surges without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.8A-E3/52 | Lower PPPM (400 W), same VBR range, SMA package (higher RθJA = 110 °C/W) | Limited to lower-energy transients (IEC 61000-4-5 Level 2); unsuitable for lightning-prone outdoor telecom sites | Select when cost sensitivity outweighs surge margin and board space permits larger thermal pad area |
| 1.5KE6.8A | Through-hole DO-201 package, identical electrical specs but no AEC-Q101 qualification or MSL-1 rating | Not suitable for automated SMT production or automotive under-hood environments requiring vibration/thermal cycling validation | Choose only for legacy through-hole designs or non-automotive industrial controls where reflow compatibility is irrelevant |
Compared with SMAJ6.8A-E3/52 and 1.5KE6.8A, SM15T6V8AHE3/57T delivers 3.75× higher surge power handling in an AEC-Q101-qualified SMT package with superior thermal performance - making it the preferred choice for next-generation automotive and industrial edge devices requiring robust, automated, and standards-compliant protection.
Availability
SM15T6V8AHE3/57T is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLC analog I/O modules, and telecom DC power interfaces requiring stable component supply, AEC-Q101 compliance, and 1500 W surge immunity.
Supply support for SM15T6V8AHE3/57T 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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, power efficiency, and automotive-grade qualification.
The SM15T Series is engineered for high-energy transient suppression in harsh environments - targeting automotive power distribution, industrial motor drives, and infrastructure equipment where failure modes must be predictable and safe.
FAQ
What is the clamping voltage of SM15T6V8AHE3/57T at its rated peak pulse current?
The SM15T6V8AHE3/57T has a maximum clamping voltage (VC) of 10.5 V when subjected to its rated peak pulse current of 143 A using the standard 10/1000 μs waveform. This value is measured under JEDEC-defined conditions with 8.0 mm × 8.0 mm copper pads per terminal and represents the upper limit of voltage imposed on the protected circuit during worst-case surge events.
Is SM15T6V8AHE3/57T qualified for automotive applications?
Yes, SM15T6V8AHE3/57T is AEC-Q101 qualified, as confirmed by the "HE3" suffix in its ordering code. It undergoes stress testing including temperature cycling, highly accelerated life testing (HALT), and ESD verification per AEC-Q101 Rev D, making it suitable for under-hood and chassis-mounted automotive electronics where reliability under thermal and mechanical stress is critical.
What is the standoff voltage rating for SM15T6V8AHE3/57T?
The standoff voltage (VWM) for SM15T6V8AHE3/57T is 5.8 V - the maximum DC or continuous reverse working voltage that can be applied without exceeding 1000 μA leakage current. This rating ensures compatibility with 5 V logic rails and low-voltage microcontroller I/O protection while maintaining sufficient margin below the 6.45 V minimum breakdown voltage.
Does SM15T6V8AHE3/57T have bidirectional capability?
No, SM15T6V8AHE3/57T is a unidirectional TVS diode, indicated by the "A" suffix (not "CA"). Its cathode band marks the terminal that must be connected toward the protected line; it conducts only during positive transients relative to ground. For bidirectional protection, Vishay offers SM15T6V8CAHE3/57T with symmetric clamping in both polarities.
What package type does SM15T6V8AHE3/57T use, and what are its mounting requirements?
SM15T6V8AHE3/57T uses the SMC (DO-214AB) surface-mount package with matte tin-plated leads. To achieve full 1500 W pulse rating, it must be mounted on minimum 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal per JEDEC test condition; smaller pads will reduce surge capability due to thermal limitation.
SM15T6V8AHE3/57T 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):
- 5.8V
- Voltage - Breakdown (Min):
- 6.45V
- Voltage - Clamping (Max) @ Ipp:
- 10.5V
- Current - Peak Pulse (10/1000µs):
- 143A
- 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)
SM15T6V8AHE3/57T FAQ
1.How can I place an order for SM15T6V8AHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T6V8AHE3/57T 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 SM15T6V8AHE3/57T reliable?
The price and inventory of SM15T6V8AHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T6V8AHE3/57T is usually 5 days.
3.What payment methods are accepted for SM15T6V8AHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T6V8AHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T6V8AHE3/57T?
SM15T6V8AHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T6V8AHE3/57T 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 SM15T6V8AHE3/57T?
For technical support, including SM15T6V8AHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T6V8AHE3/57T requirements.
6.How does Aetrix verify that SM15T6V8AHE3/57T is sourced from the original manufacturer or authorized distributors?
All SM15T6V8AHE3/57T 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 SM15T6V8AHE3/57T meets industry standards.
7.What is the process for return or replacement of SM15T6V8AHE3/57T?
All SM15T6V8AHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SM15T6V8AHE3/57T, 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 SM15T6V8AHE3/57T part is unused and in its original packaging.
Return procedure for SM15T6V8AHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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