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Vishay General Semiconductor - Diodes Division SM6T10A-M3/5B
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- Part No.:
- SM6T10A-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T10A-M3/5B.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,427
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Product details
Overview
SM6T10A-M3/5B from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping ESD and surge transients on power/signal lines. It features 10 V standoff voltage (VWM), 14.5 V max clamping voltage at 41 A peak pulse current (10/1000 μs), 600 W peak pulse power, and operates from −65 °C to +150 °C junction temperature - deployed in automotive sensor protection and industrial I/O interfaces.
For engineers reviewing the SM6T10A-M3/5B datasheet, SM6T10A-M3/5B pinout, SM6T10A-M3/5B application, or SM6T10A-M3/5B equivalent, key selection criteria include unidirectional polarity, 8.55 V minimum standoff voltage, 9.5–10.5 V breakdown range at 1.0 mA, 10 μA max reverse leakage at VWM, and halogen-free RoHS-compliant construction per M3 suffix.
Technical Context
This TVS diode uses a glass-passivated silicon junction to achieve low clamping ratio (VC/VBR ≈ 1.45) and low dynamic impedance under surge conditions. Its unidirectional configuration provides cathode-anode polarity with band-marked cathode end, enabling precise placement in DC-biased protection paths.
Rated for 600 W peak pulse power (10/1000 μs), it delivers 41.0 A maximum peak pulse current at clamping, with thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), supporting reliable operation on standard 5.0 mm × 5.0 mm copper pads without heatsinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.55 V - maximum continuous reverse operating voltage before significant leakage; defines safe DC bias margin. |
| VBR (min/max) | 9.50 V / 10.5 V at 1.0 mA - ensures predictable breakdown onset across manufacturing lot and temperature. |
| VC @ IPPM | 14.5 V at 41.0 A (10/1000 μs) - clamping voltage limits downstream IC stress during surge events. |
| PPPM | 600 W - peak transient energy absorption capability compatible with IEC 61000-4-5 Level 4 surges. |
| ID @ VWM | 10.0 μA - ultra-low leakage preserves signal integrity and battery life in always-on circuits. |
| Package | SMB (DO-214AA) - surface-mount footprint (4.57 mm × 3.94 mm) optimized for automated placement and board space efficiency. |
| TJ max. | +150 °C - enables use in under-hood automotive and high-temperature industrial environments. |
Pinout & Package
SMB (DO-214AA) package with molded epoxy body, matte tin-plated leads, and cathode band marking. Complies with UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Surge current sink node | Connected to protected line; conducts transient energy to ground when voltage exceeds VBR. |
| Anode | Reference/return path | Typically tied to system ground or low-impedance return plane; completes clamping loop during overvoltage event. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Supports robust protection against lightning-induced surges and inductive switching spikes in 24 V systems. |
| Glass passivated chip junction | Ensures stable VBR and low leakage over lifetime, even under humidity and thermal cycling stress. |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets environmental compliance requirements for automotive and industrial OEM supply chains. |
| MSL Level 1 (260 °C peak reflow) | Enables single-pass lead-free reflow assembly without moisture-related popcorning or delamination. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes voltage overshoot during clamping, protecting 12 V-rated ICs such as CAN transceivers and microcontrollers. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting analog sensor outputs (e.g., pressure, temperature) in engine control modules from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between sensor output and MCU ADC input to limit transient voltage to ≤14.5 V. Use Value: Prevents ADC saturation and latch-up while maintaining <10 μA leakage at 8.55 V nominal rail, preserving measurement accuracy. | Use Scenario: Safeguarding 24 V digital input channels on programmable logic controllers exposed to relay coil flyback and field wiring surges. IC Role / Device Role / Timing Role: Standoff device mounted at connector entry point to shunt >40 A transients before reaching optocoupler or level-shifter ICs. Use Value: Clamps within 100 ns to 14.5 V, limiting stress on downstream 24 V tolerant receivers and extending system uptime in factory automation. |
| Consumer Power Adapter Input | Telecom Line Interface Protection |
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters subjected to mains transients and capacitor discharge events. IC Role / Device Role / Timing Role: Unidirectional TVS connected across DC output rails (e.g., 12 V output) to clamp surges before DC-DC converters. Use Value: Absorbs 600 W peaks without degradation, ensuring adapter compliance with IEC 62368-1 surge immunity requirements. | Use Scenario: Protection of RS-485 transceiver pins in base station backhaul equipment connected to outdoor cabling. IC Role / Device Role / Timing Role: Point-of-entry TVS on differential bus lines to suppress induced lightning surges before signal conditioning circuitry. Use Value: Low 20 °C/W junction-to-lead thermal resistance enables rapid heat dissipation during repeated 8/20 μs surges, sustaining long-term reliability. |
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 | Same SMB package, 10 V VWM, but lower PPPM (400 W); higher VC (16.7 V at 24.2 A). | Less robust for high-energy surges; suitable only where peak current <25 A expected. | Select SMAJ10A only if system-level surge testing confirms 400 W sufficiency and layout allows higher clamping margin. |
| P6SMB10A | Identical electrical specs and SMB package; different branding (Littelfuse), same Vishay-manufactured die per cross-reference. | No functional difference; accepted in automotive PPAP where dual-sourcing is required. | P6SMB10A offers second-source availability without design change, subject to qualification per OEM sourcing policy. |
Compared with SMAJ10A and P6SMB10A, the SM6T10A-M3/5B delivers higher surge robustness (600 W vs. 400 W), tighter clamping (14.5 V vs. 16.7 V), and halogen-free compliance - making it preferred for AEC-Q101-aligned designs and high-reliability industrial deployments.
Availability
SM6T10A-M3/5B is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC I/O protection, and consumer power adapter input requiring stable component supply and halogen-free compliance.
Supply support for SM6T10A-M3/5B 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The SM6T Series is engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where consistent clamping, low leakage, and AEC-Q101 readiness are critical.
FAQ
What is the maximum clamping voltage of the SM6T10A-M3/5B under a 10/1000 μs surge?
The SM6T10A-M3/5B has a maximum clamping voltage (VC) of 14.5 V when subjected to its rated peak pulse current of 41.0 A using the standard 10/1000 μs waveform. This value is measured per Figure 1 in the Vishay datasheet 88385 and reflects worst-case clamping performance at TA = 25 °C on recommended PCB pad layout.
Is the SM6T10A-M3/5B suitable for automotive applications?
Yes, the SM6T10A-M3/5B is halogen-free and RoHS-compliant per M3 suffix, and the SM6T family supports AEC-Q101 qualification via HE3/HM3 variants. While SM6T10A-M3/5B itself is commercial-grade, its construction, thermal performance (TJ max = +150 °C), and surge robustness make it widely deployed in non-safety-critical automotive subsystems such as body control modules and sensor interfaces.
What does the "M3/5B" suffix indicate in SM6T10A-M3/5B?
The "M3" denotes halogen-free, RoHS-compliant commercial-grade construction; "5B" specifies packaging in 13-inch diameter plastic tape and reel with 3200 units per reel. This ordering code aligns with Vishay's standardized packaging nomenclature in datasheet 88385, Table "ORDERING INFORMATION".
How does the SM6T10A-M3/5B differ from bidirectional TVS diodes like SM6T10CA?
The SM6T10A-M3/5B is unidirectional and features a cathode band for polarity-sensitive placement in DC circuits; SM6T10CA is bidirectional with no polarity marking and symmetric clamping in both directions. The SM6T10A-M3/5B is used where reverse voltage blocking is required, whereas SM6T10CA suits AC or floating signal lines.
What is the thermal resistance of the SM6T10A-M3/5B, and how does it affect PCB layout?
The SM6T10A-M3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead (RθJL) of 20 °C/W. To maintain reliability under repetitive surges, Vishay recommends mounting on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal - undersized pads increase thermal impedance and risk premature failure during sustained transient events.
SM6T10A-M3/5B 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-M3/5B FAQ
1.How can I place an order for SM6T10A-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T10A-M3/5B 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-M3/5B reliable?
The price and inventory of SM6T10A-M3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T10A-M3/5B is usually 5 days.
3.What payment methods are accepted for SM6T10A-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T10A-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T10A-M3/5B?
SM6T10A-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T10A-M3/5B 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-M3/5B?
For technical support, including SM6T10A-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T10A-M3/5B requirements.
6.How does Aetrix verify that SM6T10A-M3/5B is sourced from the original manufacturer or authorized distributors?
All SM6T10A-M3/5B 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-M3/5B meets industry standards.
7.What is the process for return or replacement of SM6T10A-M3/5B?
All SM6T10A-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SM6T10A-M3/5B, 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-M3/5B part is unused and in its original packaging.
Return procedure for SM6T10A-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T10A-M3/5B Tags
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