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Vishay General Semiconductor - Diodes Division SM6T100AHE3_A/I
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- Part No.:
- SM6T100AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T100AHE3_A/I.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,337
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Product details
Overview
SM6T100AHE3_A/I 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 100 V standoff voltage (VWM), 105 V minimum breakdown voltage (VBR), 137 V maximum clamping voltage at 4.4 A (VC), 600 W peak pulse power (10/1000 μs), and AEC-Q101 qualification for automotive use.
For engineers reviewing the SM6T100AHE3_A/I datasheet, SM6T100AHE3_A/I pinout, SM6T100AHE3_A/I application, or SM6T100AHE3_A/I equivalent, key selection criteria include clamping performance under 10/1000 μs surge, thermal resistance (RθJA = 100 °C/W), unidirectional polarity with cathode band marking, and RoHS-compliant, halogen-free AEC-Q101 qualified construction.
Technical Context
The SM6T100AHE3_A/I operates as a unidirectional avalanche diode, leveraging glass-passivated junction technology to deliver precise reverse standoff and sharp breakdown characteristics. Its clamping action begins at VBR ≥ 95 V and limits transient voltages to ≤137 V at 4.4 A IPPM, enabling robust protection of downstream MOSFETs and ICs against inductive switching spikes.
Designed for surface-mount assembly on standard PCB copper pads (0.2" × 0.2"), it exhibits low inductance and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. The device sustains 100 A non-repetitive forward surge current (IFSM) and operates across –65 °C to +150 °C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR (min) | 95 V - Minimum breakdown voltage at 1 mA test current; defines turn-on threshold |
| VC (max) | 137 V at 4.4 A (10/1000 μs) - Peak clamped voltage seen by protected circuit during surge |
| PPPM | 600 W - Surge energy handling capability under standardized 10/1000 μs waveform |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient; determines derating above 25 °C |
| TJ max | +150 °C - Maximum allowable junction temperature for reliable long-term operation |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, molded plastic case with matte tin-plated leads; polarity indicated by cathode band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when V > VBR |
| Anode | Reference / return path | Typically tied to system ground or low-impedance return plane for clamping reference |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables protection against high-energy transients such as ISO 7637-2 Pulse 1/2a/5a in automotive ECUs |
| Glass passivated chip junction | Ensures stable VBR over time and temperature, minimizing parameter drift in harsh environments |
| MSL Level 1, 260 °C peak reflow | Supports lead-free SMT assembly without moisture-related popcorning or delamination |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive under-hood and body-control module applications requiring zero defect reliability |
| Low inductance SMB package | Reduces voltage overshoot during fast-rising transients (<1 ns rise time), improving clamping fidelity |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed control modules (e.g., HVAC actuators, lighting drivers) from load dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and ground to clamp surges before they reach DC-DC converters or microcontrollers. Use Value: Limits transient voltage to ≤137 V, preventing damage to 36 V-rated input stages while surviving 600 W pulses per ISO 16750-2. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) connected to PLC I/O cards exposed to field wiring transients. IC Role / Device Role / Timing Role: Low-capacitance TVS on signal line to ground, suppressing EFT bursts and surge coupling without distorting mV-level signals. Use Value: Clamps 4 kV ESD (IEC 61000-4-2) and 1 kV surge (IEC 61000-4-5) while adding <1 pF parasitic capacitance-preserving signal integrity up to 1 MHz. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Securing 48 V DC input of PoE-powered network switches and base stations against lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary front-end TVS on power entry, coordinated with upstream fuses and secondary filtering. Use Value: Absorbs 600 W 10/1000 μs surges (per ITU-T K.20/K.21) without degradation, maintaining VWM = 100 V margin above nominal 48 V rail. | Use Scenario: Shielding BLDC motor driver ICs in washing machines and HVAC fans from commutation spikes generated by brushed or brushless motors. IC Role / Device Role / Timing Role: Unidirectional TVS across motor phase-to-ground or supply rail-to-ground to quench inductive flyback. Use Value: Withstands 100 A IFSM (8.3 ms half-sine), enabling reliable suppression of repeated motor-switching events without parametric shift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ100A-E3/52 | Same SMB package, 100 V VWM, but lower PPPM (400 W); RθJA = 110 °C/W; commercial grade only (no AEC-Q101) | Lacks automotive qualification; suitable for industrial/commercial power supplies where AEC-Q101 not mandated | Select when cost sensitivity outweighs automotive reliability requirements and surge energy stays below 400 W |
| 1.5SMC100A | Higher-power SMC package (1500 W PPPM), same VWM/VBR specs; larger footprint (7.11 mm × 6.22 mm vs. SMB's 4.57 mm × 3.94 mm) | Used where higher surge margin is required and board space allows larger package; not drop-in compatible | Choose when system-level surge testing exceeds 600 W or when thermal design requires lower RθJA (~50 °C/W) |
Compared with SMAJ100A-E3/52 and 1.5SMC100A, the SM6T100AHE3_A/I uniquely delivers AEC-Q101 qualification in the compact SMB footprint with 600 W rating-making it optimal for space-constrained automotive modules needing certified reliability without layout redesign.
Availability
SM6T100AHE3_A/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, telecom DC power inputs, and consumer appliance motor drives requiring stable component supply with full traceability and lifecycle support.
Supply support for SM6T100AHE3_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, MOSFETs, and protection devices with emphasis on high-reliability, high-efficiency solutions.
The SM6T Series was developed specifically for robust transient suppression in automotive, industrial, and telecom systems-balancing high surge capability, tight parameter tolerances, and AEC-Q101 compliance in surface-mount packages.
FAQ
What is the clamping voltage of the SM6T100AHE3_A/I at its rated peak pulse current?
The SM6T100AHE3_A/I has a maximum clamping voltage (VC) of 137 V when subjected to a 10/1000 μs waveform peak pulse current (IPPM) of 4.4 A. This value is measured per Figure 1 in the official Vishay datasheet (Doc. #88385) and defines the upper voltage limit imposed on protected circuits during standardized surge events. The SM6T100AHE3_A/I maintains this clamping performance across its qualified temperature range.
Is the SM6T100AHE3_A/I suitable for automotive applications?
Yes, the SM6T100AHE3_A/I is AEC-Q101 qualified, as confirmed by its HE3 suffix and documentation in Vishay's SM6T series datasheet (Rev. 09-Jan-2024). It undergoes stress testing for temperature cycling, high-temperature reverse bias, and ESD per AEC-Q101 requirements. The SM6T100AHE3_A/I is explicitly intended for automotive power line and sensor protection in engine control, body electronics, and infotainment systems.
What does the "HE3" and "_A/I" suffix in SM6T100AHE3_A/I indicate?
The "HE3" suffix denotes RoHS-compliant construction with AEC-Q101 qualification; "_A/I" specifies packaging: "A" is the revision code, and "I" indicates 13-inch tape-and-reel delivery (3200 units per reel). This matches Vishay's ordering nomenclature in Section 5 of Doc. #88385. The SM6T100AHE3_A/I is not a generic variant-it is the exact orderable part number with verified automotive qualification and packaging configuration.
How does the SMB (DO-214AA) package of the SM6T100AHE3_A/I affect PCB layout?
The SMB package of the SM6T100AHE3_A/I measures 4.57 mm × 3.94 mm with 2.20 mm terminal width, requiring minimum 0.086" (2.18 mm) pad length per side per Vishay's recommended layout. Its low-profile design supports automated placement and reduces board area versus larger SMC or DO-214AB packages. The SM6T100AHE3_A/I must be mounted on 0.2" × 0.2" copper pads for rated thermal and surge performance.
What is the maximum operating temperature for the SM6T100AHE3_A/I?
The SM6T100AHE3_A/I has a maximum junction temperature (TJ max) of +150 °C and an operating/storage temperature range of –65 °C to +150 °C. Derating of peak pulse power begins above TA = 25 °C per Figure 2 in the Vishay datasheet, with 100 °C/W junction-to-ambient thermal resistance defining the thermal boundary. This rating enables use in under-hood automotive environments and industrial enclosures without forced cooling.
SM6T100AHE3_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):
- 85.5V
- Voltage - Breakdown (Min):
- 95V
- Voltage - Clamping (Max) @ Ipp:
- 137V
- Current - Peak Pulse (10/1000µs):
- 4.4A
- 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)
SM6T100AHE3_A/I FAQ
1.How can I place an order for SM6T100AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T100AHE3_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 SM6T100AHE3_A/I reliable?
The price and inventory of SM6T100AHE3_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 SM6T100AHE3_A/I is usually 5 days.
3.What payment methods are accepted for SM6T100AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T100AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T100AHE3_A/I?
SM6T100AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T100AHE3_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 SM6T100AHE3_A/I?
For technical support, including SM6T100AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T100AHE3_A/I requirements.
6.How does Aetrix verify that SM6T100AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SM6T100AHE3_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 SM6T100AHE3_A/I meets industry standards.
7.What is the process for return or replacement of SM6T100AHE3_A/I?
All SM6T100AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SM6T100AHE3_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 SM6T100AHE3_A/I part is unused and in its original packaging.
Return procedure for SM6T100AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T100AHE3_A/I Tags
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