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Vishay General Semiconductor - Diodes Division SM6T6V8AHE3_A/H
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- Part No.:
- SM6T6V8AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T6V8AHE3_A/H.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,805
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Product details
Overview
SM6T6V8AHE3_A/H from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features 6.45 V to 7.14 V breakdown voltage (VBR), 5.80 V stand-off voltage (VWM), 10.5 V max clamping voltage (VC) at 57 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - used in automotive sensor protection and industrial I/O interface surge suppression.
For engineers reviewing the SM6T6V8AHE3_A/H datasheet, SM6T6V8AHE3_A/H pinout, SM6T6V8AHE3_A/H application, or SM6T6V8AHE3_A/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 150 °C junction temperature rating, low-inductance SMB package, and compliance with IEC 61000-4-2/4-4/4-5 ESD/EFT/surge immunity requirements.
Technical Context
This TVS diode operates as a clamping device in parallel with sensitive circuitry, conducting only when reverse voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable VBR and low leakage (<1000 μA at VWM), while the low-inductance SMB package minimizes voltage overshoot during fast transients.
Rated for 600 W peak pulse power under 10/1000 μs waveform and 100 A non-repetitive forward surge current (IFSM), it supports robust protection in automotive-grade systems where thermal derating above 25 °C must be applied per Fig. 2 of the datasheet and junction-to-ambient thermal resistance is 100 °C/W.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 6.45 V / 7.14 V - defines precise clamping onset range at 10 mA test current |
| VWM | 5.80 V - maximum continuous reverse operating voltage before leakage rises |
| VC @ IPPM | 10.5 V at 57 A - peak clamped voltage during 600 W transient, limiting stress on downstream ICs |
| PPPM | 600 W - peak pulse power handling with 10/1000 μs waveform, critical for ISO 7637-2 load dump immunity |
| TJ max | +150 °C - enables operation in under-hood automotive environments without thermal shutdown |
| Package | SMB (DO-214AA) - surface-mount footprint with 0.220" x 0.205" pad layout, MSL Level 1, 260 °C reflow compatible |
| AEC-Q101 | Qualified - validated for automotive electronics per stress test requirements including HTGB, HTRB, and TCT |
Pinout & Package
SMB (DO-214AA) package: cathode-banded end denotes the cathode terminal; anode is unmarked opposite end. Matte tin-plated leads meet J-STD-002 solderability and JESD22-B102 whisker resistance Class 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient conduction path during overvoltage | Connects to protected line (e.g., 5 V rail); conducts when reverse voltage exceeds VBR |
| Anode (unmarked end) | Reference/return node | Typically tied to ground or lower-potential rail; completes clamping path during surge events |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables single-device protection against ISO 7637-2 Pulse 5a (load dump) up to 12 V systems |
| Glass-passivated junction | Ensures stable VBR tolerance and <1000 μA leakage at VWM, reducing standby power loss |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive use including temperature cycling, humidity bias, and high-temperature reverse bias |
| Low-inductance SMB package | Minimizes voltage overshoot during sub-100 ns transients (e.g., ESD), improving clamping response |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free SMT assembly without moisture sensitivity concerns or baking requirements |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive switching transients in engine control units. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between signal line and ground, activated within nanoseconds of overvoltage event. Use Value: Limits voltage to ≤10.5 V during 57 A surge, preventing latch-up or gate oxide damage in 5 V/3.3 V interface ICs. | Use Scenario: Safeguarding PLC digital input modules against field-wiring surges and relay contact bounce in factory automation cabinets. IC Role / Device Role / Timing Role: Parallel-connected transient suppressor on 24 V DC input lines, absorbing energy before reaching optocoupler or MCU GPIO. Use Value: Withstands 600 W pulses without degradation, maintaining long-term reliability in harsh industrial EMI environments. |
| Consumer Power Adapter Input | Telecom Line Card Surge Suppression |
Use Scenario: Secondary-side overvoltage protection on 5 V/9 V USB-C PD adapter outputs exposed to accidental AC mains coupling or hot-plug transients. IC Role / Device Role / Timing Role: Fast-response clamping diode across output rails, triggered by VBR threshold to shunt surge current to ground. Use Value: Clamps to 10.5 V within 1 ns, protecting downstream USB-PD controllers and Type-C port logic from destructive overvoltage. | Use Scenario: Front-end protection on Ethernet PHY or DSL line driver circuits subjected to lightning-induced surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: Primary-level TVS on differential pair inputs, coordinated with gas discharge tube (GDT) for staged surge handling. Use Value: Provides low-clamp, fast-response stage with 10.5 V VC, reducing stress on secondary protection components and preserving signal integrity. |
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-E3/5B | Same SMB package, 6.8 V nominal VBR, but rated for 400 W PPPM and not AEC-Q101 qualified | Limited to commercial-grade consumer/industrial use; lacks automotive qualification and higher pulse power margin | Select when cost sensitivity outweighs automotive qualification and 600 W surge headroom is unnecessary |
| 1.5SMC6.8A | Same VBR range and PPPM, but in larger SMC (DO-214AB) package with higher RθJA (70 °C/W) and no AEC-Q101 listing | Requires more PCB area; thermal performance less suitable for dense automotive modules | Choose only if existing SMC footprint reuse is mandatory and AEC-Q101 is not required |
Compared with SMAJ6.8A-E3/5B and 1.5SMC6.8A, SM6T6V8AHE3_A/H delivers AEC-Q101 qualification, 600 W pulse rating in compact SMB, and lower thermal resistance (100 °C/W vs. SMC's 70 °C/W is misstated - actual SMB RθJA is 100 °C/W, SMC is lower; correction: SM6T6V8AHE3_A/H offers automotive validation and tighter VBR tolerance (±5%) versus SMAJ's ±10%), making it optimal for space-constrained, safety-critical vehicle subsystems.
Availability
SM6T6V8AHE3_A/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and telecom line card designs requiring stable component supply with full AEC-Q101 traceability and RoHS compliance.
Supply support for SM6T6V8AHE3_A/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, MOSFETs, and protection devices with emphasis on reliability and automotive-grade validation.
The SM6T Series is engineered specifically for high-reliability transient suppression in automotive and industrial environments, combining AEC-Q101 qualification, low-inductance packaging, and precise VBR control to meet stringent ISO 16750 and IEC 61000-4-x immunity standards.
FAQ
What is the breakdown voltage tolerance for SM6T6V8AHE3_A/H?
The SM6T6V8AHE3_A/H has a specified breakdown voltage range of 6.45 V to 7.14 V at 10 mA test current, corresponding to a ±5% tolerance around the nominal 6.8 V rating. This tight tolerance ensures consistent clamping behavior across production lots and supports reliable design margining in 5 V system protection schemes.
Is SM6T6V8AHE3_A/H suitable for bidirectional transient suppression?
No, SM6T6V8AHE3_A/H is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. For bidirectional operation, Vishay specifies the "CA" suffix (e.g., SM6T6V8CA). Using SM6T6V8AHE3_A/H on AC or differential lines without polarity awareness may result in forward conduction and failure.
Does SM6T6V8AHE3_A/H meet automotive qualification standards?
Yes, SM6T6V8AHE3_A/H carries the HE3 suffix, denoting RoHS-compliant construction and full AEC-Q101 qualification. It has passed stress tests including high-temperature reverse bias (HTRB), temperature cycling (TCT), and humidity bias (HAST), confirming suitability for under-hood and body-control module applications.
What is the maximum clamping voltage of SM6T6V8AHE3_A/H during a 600 W transient?
At its rated 600 W peak pulse power with a 10/1000 μs waveform, SM6T6V8AHE3_A/H clamps to a maximum of 10.5 V when subjected to 57 A peak pulse current (IPPM). This value is guaranteed per the datasheet's electrical characteristics table and is critical for ensuring downstream 5 V logic remains within absolute maximum ratings.
Can SM6T6V8AHE3_A/H be used in place of SMAJ6.8A in an existing design?
SM6T6V8AHE3_A/H shares the same SMB package and similar VBR, but offers higher 600 W PPPM (versus 400 W for SMAJ6.8A) and AEC-Q101 qualification. Pin-to-pin replacement is mechanically feasible, but system-level validation is required to confirm thermal and surge margin improvements do not introduce unintended interactions in the protection network.
SM6T6V8AHE3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- SM6T, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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):
- 57A
- Power - Peak Pulse:
- 600W
- 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-214AA (SMBJ)
SM6T6V8AHE3_A/H FAQ
1.How can I place an order for SM6T6V8AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T6V8AHE3_A/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 SM6T6V8AHE3_A/H reliable?
The price and inventory of SM6T6V8AHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T6V8AHE3_A/H is usually 5 days.
3.What payment methods are accepted for SM6T6V8AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T6V8AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T6V8AHE3_A/H?
SM6T6V8AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T6V8AHE3_A/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 SM6T6V8AHE3_A/H?
For technical support, including SM6T6V8AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T6V8AHE3_A/H requirements.
6.How does Aetrix verify that SM6T6V8AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SM6T6V8AHE3_A/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 SM6T6V8AHE3_A/H meets industry standards.
7.What is the process for return or replacement of SM6T6V8AHE3_A/H?
All SM6T6V8AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SM6T6V8AHE3_A/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 SM6T6V8AHE3_A/H part is unused and in its original packaging.
Return procedure for SM6T6V8AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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