Vishay General Semiconductor - Diodes Division SM6T10A-E3/5B
- Part No.:
- SM6T10A-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T10A-E3/5B.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC DO214AA
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
SM6T10A-E3/5B from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, with 10 V breakdown voltage (VBR = 9.5–10.5 V at IT = 1.0 mA), 8.55 V stand-off voltage (VWM), 14.5 V clamping voltage (VC) at 41.0 A peak pulse current, and 600 W peak pulse power rating per 10/1000 μs waveform - used to protect MOSFETs and ICs against inductive switching transients in automotive and industrial power supplies.
For engineers reviewing the SM6T10A-E3/5B datasheet, SM6T10A-E3/5B pinout, SM6T10A-E3/5B application, or SM6T10A-E3/5B equivalent, key selection criteria include unidirectional polarity, SMB package thermal resistance (RθJA = 100 °C/W), AEC-Q101 qualification eligibility (via HE3 suffix), low leakage (<10 μA at VWM), and compliance with J-STD-020 MSL level 1.
Technical Context
The SM6T10A-E3/5B operates as a unidirectional clamping device with glass-passivated junction, designed for fast response to transient overvoltages. Its electrical behavior is defined by precise VBR tolerance (±5%), low dynamic impedance, and stable clamping under 10/1000 μs surge conditions.
It features low inductance and meets JEDEC J-STD-020 MSL level 1 (260 °C reflow peak), enabling reliable automated placement on PCBs. The cathode band denotes polarity, and its SMB package supports 5.0 W steady-state power dissipation at TA = 50 °C on infinite heatsink.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 9.50 V / 10.5 V at 1.0 mA test current - defines precise clamping onset threshold |
| VWM | 8.55 V - maximum continuous reverse operating voltage before leakage rises |
| VC @ IPPM | 14.5 V at 41.0 A - limits protected circuit voltage during 600 W transient |
| PPPM | 600 W - peak surge power handling capability with standard 10/1000 μs waveform |
| IFSM | 100 A - non-repetitive forward surge current rating (10 ms half-sine) |
| TJ range | −65 °C to +150 °C - enables operation in under-hood automotive and industrial environments |
| RθJA | 100 °C/W - thermal resistance from junction to ambient, critical for layout pad sizing |
Pinout & Package
SMB (DO-214AA) surface-mount package with matte tin-plated leads, 0.220" × 0.130" footprint, and cathode band marking on one end. Complies with UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to ground or low-impedance return in unidirectional clamp configuration |
| Cathode | Clamped output / protected line connection | Connected to signal/power line being protected; band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Enables robust protection against ISO 7637-2 pulse 1/2a/5a transients in 12 V automotive systems |
| Glass passivated junction | Ensures long-term reliability and stable VBR under humidity and temperature cycling |
| MSL level 1 rating | Supports single-reflow assembly without moisture sensitivity concerns |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage stress on downstream MOSFET gates or IC inputs |
| RoHS-compliant, halogen-free option available | Meets environmental compliance requirements for industrial and automotive supply chains |
Applications
| Automotive Power Supply Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and inductive kickback during relay switching. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed across input rail and ground. Use Value: Limits transient voltage to ≤14.5 V, preventing damage to upstream DC/DC controllers rated for 16 V max input. | Use Scenario: Shielding 24 V digital input modules from field-wiring induced surges in factory automation. IC Role / Device Role / Timing Role: Primary overvoltage clamp on dry-contact input lines before optocoupler or Schmitt trigger. Use Value: Withstands repeated 41 A pulses without degradation, maintaining <10 μA leakage at 8.55 V for accurate logic-level sensing. |
| Consumer Appliance Motor Drive Protection | Telecom Power Interface Protection |
Use Scenario: Safeguarding H-bridge gate drivers in smart HVAC blower modules from back-EMF spikes. IC Role / Device Role / Timing Role: Localized TVS on each half-bridge supply rail, adjacent to MOSFET source terminals. Use Value: Fast clamping (sub-nanosecond response) prevents shoot-through caused by VDS overshoot exceeding gate oxide rating. | Use Scenario: Guarding PoE-powered Ethernet switch ports against lightning-induced surges on 48 V DC input. IC Role / Device Role / Timing Role: First-stage unidirectional suppressor on primary DC input before DC/DC isolation stage. Use Value: 600 W rating handles IEC 61000-4-5 combination wave (1.2/50 μs + 8/20 μs) without failure or parameter shift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A | Same SMB package, 10 V VBR, but lower PPPM = 400 W and higher VC = 16.0 V | Less margin for high-energy transients; suitable only where surge energy is limited | Select SMAJ10A only if system-level testing confirms 400 W sufficiency and 16.0 V clamping is acceptable |
| 1.5SMC10A | Larger SMC (DO-214AB) package, same VBR, PPPM = 1500 W, VC = 17.0 V | Higher surge capacity but requires larger board area and different thermal layout | Choose 1.5SMC10A when system must survive multiple 10/1000 μs surges above 600 W or when RθJA < 60 °C/W is required |
Compared with SMAJ10A and 1.5SMC10A, the SM6T10A-E3/5B delivers optimal balance of compact SMB footprint, 600 W capability, and low 14.5 V clamping - making it preferred for space-constrained automotive and industrial boards where both size and surge margin matter.
Availability
SM6T10A-E3/5B is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC input conditioning, and telecom power interface protection requiring stable component supply and RoHS-compliant sourcing.
Supply support for SM6T10A-E3/5B 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 qualification.
The SM6T Series is engineered specifically for surface-mount transient voltage suppression in harsh environments - targeting automotive, industrial, and telecom applications where robustness, repeatable clamping, and AEC-Q101 readiness are mandatory.
FAQ
What is the clamping voltage of the SM6T10A-E3/5B under peak pulse conditions?
The SM6T10A-E3/5B has a maximum clamping voltage (VC) of 14.5 V at 41.0 A peak pulse current (IPPM) using the standard 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88385 and ensures downstream components see no more than 14.5 V during surge events. The SM6T10A-E3/5B maintains this performance across its full operating temperature range.
Is the SM6T10A-E3/5B suitable for automotive applications?
Yes - while the SM6T10A-E3/5B itself is commercial-grade (E3 suffix), it belongs to the AEC-Q101-qualified SM6T family. Automotive-grade variants use HE3 or HM3 suffixes (e.g., SM6T10AHE3_B). The SM6T10A-E3/5B shares identical electrical and thermal characteristics, making it ideal for prototyping and non-safety-critical automotive subsystems where full qualification isn't mandated.
What does the "/5B" in SM6T10A-E3/5B indicate?
The "/5B" denotes the packaging configuration: 13-inch diameter plastic tape and reel, with 3200 units per reel. This differs from "/52", which indicates a 7-inch reel with 750 units. Both share the same E3 RoHS-compliant, commercial-grade die and SMB package - only the delivery format changes.
How does the SM6T10A-E3/5B compare to bidirectional TVS diodes like SM6T10CA?
The SM6T10A-E3/5B is unidirectional and intended for DC line protection with defined polarity; SM6T10CA is bidirectional and suited for AC or floating signal lines. Their VBR, VC, and PPPM are identical, but the SM6T10A-E3/5B exhibits forward conduction below ~0.7 V, whereas SM6T10CA clamps symmetrically in both directions - making them functionally non-interchangeable without circuit review.
What is the maximum reverse leakage current for the SM6T10A-E3/5B at its stand-off voltage?
At VWM = 8.55 V and TA = 25 °C, the SM6T10A-E3/5B exhibits a maximum reverse leakage current (ID) of 10.0 μA. This low leakage preserves signal integrity in high-impedance sensor interfaces and ensures minimal power loss in always-on automotive modules - a key specification confirmed in Table 1 of Vishay document 88385.
SM6T10A-E3/5B 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:
- Active
- 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):
- 41A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SM6T10A-E3/5B FAQ
1.How can I place an order for SM6T10A-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T10A-E3/5B 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 SM6T10A-E3/5B reliable?
The price and inventory of SM6T10A-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T10A-E3/5B is usually 5 days.
3.What payment methods are accepted for SM6T10A-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T10A-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T10A-E3/5B?
SM6T10A-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T10A-E3/5B 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 SM6T10A-E3/5B?
For technical support, including SM6T10A-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T10A-E3/5B requirements.
6.How does Aetrix verify that SM6T10A-E3/5B is sourced from the original manufacturer or authorized distributors?
All SM6T10A-E3/5B 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 SM6T10A-E3/5B meets industry standards.
7.What is the process for return or replacement of SM6T10A-E3/5B?
All SM6T10A-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SM6T10A-E3/5B, 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 SM6T10A-E3/5B part is unused and in its original packaging.
Return procedure for SM6T10A-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T10A-E3/5B Tags

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Diodes Incorporated

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Diodes Incorporated

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Nexperia USA Inc.

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Toshiba Semiconductor and Storage

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Diodes Incorporated
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