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Vishay General Semiconductor - Diodes Division SM6T10AHE3/52
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- Part No.:
- SM6T10AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T10AHE3/52.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,792
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Product details
Overview
SM6T10AHE3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping inductive switching transients and ESD events 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 rating, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SM6T10AHE3/52 datasheet, SM6T10AHE3/52 pinout, SM6T10AHE3/52 application, or SM6T10AHE3/52 equivalent, key selection criteria include clamping voltage margin relative to protected IC VDD, IPPM derating above 25 °C, thermal resistance (RθJA = 100 °C/W), and AEC-Q101 compliance for under-hood automotive modules.
Technical Context
The SM6T10AHE3/52 operates as a unidirectional avalanche diode with cathode-banded polarity, leveraging glass-passivated junction technology for stable breakdown and low leakage (<10 μA at 8.55 V). Its clamping action begins at 9.5 V (min VBR) and limits transient voltage to ≤14.5 V up to 41 A (10/1000 μs waveform).
Designed for surface-mount placement on 0.2" × 0.2" copper pads, it delivers 600 W peak pulse power with low inductance and meets MSL Level 1 (260 °C reflow peak), supporting automated assembly in high-reliability automotive and industrial PCBs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.55 V - Maximum continuous reverse operating voltage before clamping begins; sets upper limit for safe DC bias on protected line. |
| VBR (min/max) | 9.50 V / 10.5 V at 1.0 mA - Confirmed avalanche breakdown range; ensures predictable turn-on across temperature and unit variation. |
| VC @ IPPM | 14.5 V at 41.0 A (10/1000 μs) - Measured clamping voltage under standardized surge; defines worst-case overvoltage seen by downstream circuitry. |
| PPPM | 600 W - Peak pulse power handling capability; determines survivability against lightning-induced or inductive-switching surges. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance; requires minimum 5.0 mm × 5.0 mm copper pad per terminal for rated power dissipation. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments with ambient up to +125 °C. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including HTOL, TC, UHAST, and ESD testing per AEC standard. |
Pinout & Package
SMB (DO-214AA) surface-mount package with matte tin-plated leads, 0.220" × 0.130" body, cathode band marking on one end. Compliant with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Anode of internal PN junction | Connected to protected line; reverse-biased during normal operation; conducts during overvoltage to clamp to VC. |
| Anode (unmarked end) | Cathode of internal PN junction | Typically tied to ground or lower-potential rail; provides return path for transient current during clamping event. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 4 surges without external series impedance. |
| AEC-Q101 qualified | Validated for automotive powertrain, body control, and ADAS modules requiring extended temperature cycling and long-term reliability. |
| Glass passivated junction | Ensures stable VBR and low leakage (<10 μA) over 15-year field life, even under humidity and thermal stress. |
| Low inductance SMB package | Minimizes voltage overshoot during fast transients (e.g., ESD >1 kV/ns), improving clamping response vs. larger DO-214AB packages. |
| MSL Level 1 (260 °C) | Supports single-reflow assembly without moisture sensitivity concerns, eliminating bake requirements in production. |
Applications
| Automotive Power Line Protection | Industrial Sensor Signal Line Clamping |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs (e.g., HVAC controllers) from load-dump transients up to 35 V and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to shunt surge current away from LDOs and microcontrollers. Use Value: Limits voltage to ≤14.5 V during 41 A transients, preserving 5 V logic supply integrity and preventing latch-up in downstream ASICs. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in PLC I/O modules exposed to motor drive noise. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to absorb coupled transients before reaching op-amp input stages. Use Value: Clamps 1 kV ESD events to <15 V within nanoseconds, maintaining signal fidelity and avoiding ADC saturation or offset drift. |
| Consumer Device USB Port ESD Suppression | Telecom Equipment DC Power Input Protection |
Use Scenario: Adding secondary ESD protection on VBUS line of USB-C ports in portable medical monitors and handheld test equipment. IC Role / Device Role / Timing Role: Secondary TVS after primary polymer PTC, providing sub-15 V clamping for ±8 kV contact discharge (IEC 61000-4-2). Use Value: Prevents gate oxide damage to USB switch ICs by limiting transient voltage below absolute maximum ratings (e.g., 5.5 V). |
Use Scenario: Protecting 48 V DC input of PoE-powered network switches and base station radios from lightning-induced surges. IC Role / Device Role / Timing Role: First-stage clamping device upstream of DC-DC converter, absorbing bulk energy before regulation stage. Use Value: Handles 600 W pulses without degradation, enabling compliance with Telcordia GR-1089-CORE Level 3 surge immunity requirements. |
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 VWM, but lower 400 W PPPM; no AEC-Q101 qualification; RθJA = 110 °C/W. | Not suitable for automotive under-hood use; limited to commercial-grade industrial or consumer applications with lower surge severity. | Select SMAJ10A only when AEC-Q101 is not required and peak surge energy is ≤400 W. |
| SMCJ10A | Larger SMC (DO-214AB) package; same 10 V VWM, higher 1500 W PPPM; RθJA = 35 °C/W; AEC-Q101 available in HE3 variant. | Requires larger PCB footprint; supports higher sustained surge duty cycles and better thermal performance in high-power systems. | Choose SMCJ10A when system-level surge tests exceed 600 W or when board layout allows larger package for improved thermal margin. |
Compared with SMAJ10A and SMCJ10A, SM6T10AHE3/52 uniquely balances AEC-Q101 qualification, SMB footprint, and 600 W surge capability-making it optimal for space-constrained automotive modules where both reliability and board area are critical.
Availability
SM6T10AHE3/52 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom power input stages requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SM6T10AHE3/52 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, efficiency, and application-specific optimization.
The SM6T Series is engineered for robust transient suppression in harsh environments-targeting automotive, industrial, and telecom applications where consistent clamping performance and AEC-Q101 validation are mandatory.
FAQ
What is the maximum clamping voltage of the SM6T10AHE3/52 under a 10/1000 μs surge?
The SM6T10AHE3/52 has a maximum clamping voltage (VC) of 14.5 V when subjected to its rated peak pulse current of 41.0 A using the 10/1000 μs waveform. This value is measured per Figure 1 in the Vishay datasheet 88385 and defines the highest voltage the protected circuit will experience during such a transient event.
Is the SM6T10AHE3/52 suitable for automotive applications?
Yes, the SM6T10AHE3/52 is AEC-Q101 qualified and explicitly designated for automotive use via its "HE3" suffix. It undergoes rigorous stress testing-including temperature cycling, humidity, and ESD-to meet automotive reliability requirements for engine control, body electronics, and ADAS subsystems.
What does the "HE3" suffix indicate in SM6T10AHE3/52?
The "HE3" suffix in SM6T10AHE3/52 denotes RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from commercial-grade "E3" parts and confirms compliance with automotive-grade material, process, and reliability standards per JESD22 and AEC specifications.
How does the SMB package of SM6T10AHE3/52 compare thermally to larger TVS packages?
The SMB (DO-214AA) package of SM6T10AHE3/52 has a typical RθJA of 100 °C/W, requiring 5.0 mm × 5.0 mm copper pads per terminal for full 600 W rating. Larger packages like SMC (DO-214AB) offer lower RθJA (~35 °C/W) but occupy more board area-making SM6T10AHE3/52 ideal where space is constrained and thermal management is achievable via layout.
Can SM6T10AHE3/52 be used for bidirectional transient protection?
No, SM6T10AHE3/52 is unidirectional. For bidirectional protection, Vishay specifies the CA-suffixed variant (e.g., SM6T10CA). The "A" suffix in SM6T10AHE3/52 confirms unidirectional polarity, with the cathode band indicating the terminal to connect toward the protected line.
SM6T10AHE3/52 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:
- Discontinued at Digi-Key
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SM6T10AHE3/52 FAQ
1.How can I place an order for SM6T10AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T10AHE3/52 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 SM6T10AHE3/52 reliable?
The price and inventory of SM6T10AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T10AHE3/52 is usually 5 days.
3.What payment methods are accepted for SM6T10AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T10AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T10AHE3/52?
SM6T10AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T10AHE3/52 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 SM6T10AHE3/52?
For technical support, including SM6T10AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T10AHE3/52 requirements.
6.How does Aetrix verify that SM6T10AHE3/52 is sourced from the original manufacturer or authorized distributors?
All SM6T10AHE3/52 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 SM6T10AHE3/52 meets industry standards.
7.What is the process for return or replacement of SM6T10AHE3/52?
All SM6T10AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SM6T10AHE3/52, 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 SM6T10AHE3/52 part is unused and in its original packaging.
Return procedure for SM6T10AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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