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Vishay General Semiconductor - Diodes Division SM6T15AHE3_A/I
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- Part No.:
- SM6T15AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T15AHE3_A/I.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,294
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Product details
Overview
SM6T15AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) in SMB (DO-214AA) package, with 14.3 V minimum breakdown voltage (VBR), 12.8 V stand-off voltage (VWM), and 600 W peak pulse power (10/1000 μs). It clamps transients to 21.2 V at 28 A, operates from −65 °C to +150 °C, and is AEC-Q101 qualified for automotive electronics protection.
For engineers reviewing the SM6T15AHE3_A/I datasheet, SM6T15AHE3_A/I pinout, SM6T15AHE3_A/I application, or SM6T15AHE3_A/I equivalent, this page delivers verified electrical parameters, validated package dimensions, confirmed automotive qualification status, and real-world use cases in sensor line and MOSFET gate protection.
Technical Context
The SM6T15AHE3_A/I uses a glass-passivated silicon junction to achieve low clamping ratio (VC/VBR ≈ 1.49) and low dynamic impedance. Its unidirectional polarity enables cathode-referenced transient suppression on DC-biased lines, with 1.0 mA test current defining VBR per JEDEC standards.
Designed for high-reliability automotive applications, it meets MSL Level 1 (260 °C reflow peak), JESD201 Class 2 whisker resistance, and UL 94 V-0 flammability. Thermal resistance is 100 °C/W (junction-to-ambient) on standard 0.2" × 0.2" copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 14.3 V / 15.8 V at 1.0 mA - defines precise voltage threshold where avalanche conduction begins |
| VWM | 12.8 V - maximum continuous reverse voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | 21.2 V at 28.0 A (10/1000 μs) - clamping voltage during worst-case surge, limiting downstream stress |
| PPPM | 600 W - peak transient energy absorption capability under standardized waveform |
| TJ max. | +150 °C - enables operation in under-hood automotive environments without derating |
| RθJA | 100 °C/W - thermal performance baseline for PCB layout with 0.2" × 0.2" copper pads per terminal |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, cathode indicated by band. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H), compliant with JEDEC DO-214AA outline.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path | Connected to system ground or low-impedance reference; carries full surge current during clamping |
| Cathode | Protected line connection | Connected to line being protected (e.g., sensor supply); blocks reverse leakage below VWM |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing |
| Glass passivated junction | Ensures stable VBR tolerance and long-term leakage stability over life and temperature |
| Low clamping ratio (VC/VBR) | 1.49 - minimizes overvoltage exposure to protected ICs while maintaining robust surge margin |
| MSL Level 1 rating | Enables single-reflow assembly without moisture sensitivity concerns or baking requirements |
Applications
| Automotive Sensor Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting analog output lines of engine coolant temperature sensors exposed to load-dump transients in 12 V vehicle systems. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor signal line and chassis ground to clamp induced spikes before reaching ADC input. Use Value: Limits transient voltage to ≤21.2 V, preventing damage to 3.3 V or 5 V sensor interface ICs while maintaining <1.0 μA leakage at 12.8 V nominal supply. | Use Scenario: Safeguarding digital input terminals of programmable logic controllers against ESD and inductive switching surges from solenoid drivers. IC Role / Device Role / Timing Role: Standoff-clamp TVS on 24 V DC input channel, absorbing up to 600 W pulses without degradation. Use Value: Enables reliable operation in harsh industrial environments with repeated 10/1000 μs surges up to 28 A, supported by AEC-Q101–level process controls. |
| Power Supply Rail Clamping | MOSFET Gate Protection |
Use Scenario: Suppressing turn-off spikes on 12 V auxiliary power rails feeding microcontrollers and communication modules. IC Role / Device Role / Timing Role: Parallel-connected TVS across rail-to-ground, activated only during overvoltage events exceeding 12.8 V. Use Value: Maintains rail integrity with 100 °C/W thermal resistance and 150 °C max junction temperature, compatible with standard SMB footprint layouts. | Use Scenario: Preventing gate oxide failure in N-channel power MOSFETs driven by PWM controllers subject to Miller-induced voltage overshoot. IC Role / Device Role / Timing Role: Cathode tied to gate, anode to source; clamps negative-going transients and limits positive overshoot to 21.2 V. Use Value: Provides sub-10 ns response time and low inductance due to SMB package geometry, critical for fast-switching gate drive circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15A | 400 W PPPM, same VWM/VBR range, SMA package (higher RθJA = 150 °C/W) | Limited to lower-energy transients; less suitable for automotive load-dump compliance | Select when cost sensitivity outweighs peak power requirement and board space allows larger thermal pad |
| 1.5SMC15A | 1500 W PPPM, SMC package (7.1 mm × 6.2 mm), higher VC = 24.4 V at 61.5 A | Better for high-energy surges but requires larger PCB area and has slower response due to higher parasitic inductance | Choose for industrial motor drives where surge magnitude exceeds 600 W but layout permits SMC footprint |
Compared with SMAJ15A and 1.5SMC15A, the SM6T15AHE3_A/I delivers optimal balance of automotive qualification, 600 W surge handling, and SMB footprint-making it ideal for space-constrained, high-reliability 12 V systems where thermal management and AEC-Q101 compliance are mandatory.
Availability
SM6T15AHE3_A/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC inputs, power supply rail clamping, and MOSFET gate protection requiring stable component supply and AEC-Q101 traceability.
Supply support for SM6T15AHE3_A/I 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, TVS devices, and optoelectronics with emphasis on reliability and application-specific performance.
The SM6T Series was developed specifically for robust transient suppression in automotive and industrial environments, combining AEC-Q101 qualification, low-profile SMB packaging, and tightly controlled clamping characteristics for sensitive electronics protection.
FAQ
What is the clamping voltage of SM6T15AHE3_A/I at its rated peak pulse current?
The SM6T15AHE3_A/I clamps to 21.2 V at its specified peak pulse current of 28.0 A under the 10/1000 μs waveform. This value is measured with the device mounted on 0.2" × 0.2" copper pads per terminal and represents the maximum voltage seen by protected circuitry during a standardized surge event. The clamping performance is guaranteed across the full operating temperature range.
Is SM6T15AHE3_A/I suitable for automotive applications?
Yes, SM6T15AHE3_A/I is AEC-Q101 qualified and explicitly designated for automotive use via the "HE3" suffix. It meets MSL Level 1 reflow requirements, JESD201 Class 2 whisker resistance, and operates reliably from −65 °C to +150 °C. Its construction and testing align with automotive electronics durability standards for under-hood and body-control module applications.
What does the "A/I" suffix mean in SM6T15AHE3_A/I?
The "A/I" suffix in SM6T15AHE3_A/I indicates packaging configuration: "A" denotes the revision code (Revision A per Vishay's internal documentation), and "I" specifies 13-inch diameter plastic tape and reel delivery mode with 3200 units per reel. This matches Vishay's ordering convention shown in the "Ordering Information" section of document 88385.
How does SM6T15AHE3_A/I differ from bidirectional variants like SM6T15CA?
SM6T15AHE3_A/I is unidirectional, with polarity marked by a cathode band and intended for DC-biased lines. In contrast, SM6T15CA is bidirectional, lacks polarity marking, and suppresses transients in both directions-suitable for AC or floating signal lines. Their VBR, VWM, and PPPM values are identical, but circuit placement and grounding strategy differ fundamentally.
What is the maximum reverse leakage current for SM6T15AHE3_A/I at its stand-off voltage?
At its stand-off voltage (VWM) of 12.8 V, the SM6T15AHE3_A/I exhibits a maximum reverse leakage current (ID) of 1.0 μA at 25 °C. This low leakage ensures minimal power loss and signal interference in always-on automotive and industrial monitoring circuits, and remains within specification across the full −65 °C to +150 °C operating junction temperature range.
SM6T15AHE3_A/I 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):
- 12.8V
- Voltage - Breakdown (Min):
- 14.3V
- Voltage - Clamping (Max) @ Ipp:
- 21.2V
- Current - Peak Pulse (10/1000µs):
- 28A
- 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)
SM6T15AHE3_A/I FAQ
1.How can I place an order for SM6T15AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T15AHE3_A/I 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 SM6T15AHE3_A/I reliable?
The price and inventory of SM6T15AHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T15AHE3_A/I is usually 5 days.
3.What payment methods are accepted for SM6T15AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T15AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T15AHE3_A/I?
SM6T15AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T15AHE3_A/I 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 SM6T15AHE3_A/I?
For technical support, including SM6T15AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T15AHE3_A/I requirements.
6.How does Aetrix verify that SM6T15AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SM6T15AHE3_A/I 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 SM6T15AHE3_A/I meets industry standards.
7.What is the process for return or replacement of SM6T15AHE3_A/I?
All SM6T15AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SM6T15AHE3_A/I, 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 SM6T15AHE3_A/I part is unused and in its original packaging.
Return procedure for SM6T15AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T15AHE3_A/I Tags
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