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Vishay General Semiconductor - Diodes Division SMCJ100AHE3/57T
- Part No.:
- SMCJ100AHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ100AHE3/57T.pdf
- Description:
- TVS DIODE 100VWM 162VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,397
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Product details
Overview
SMCJ100AHE3/57T from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection of DC power rails and signal lines. It features a 100 V stand-off voltage (VWM), 162 V maximum clamping voltage (VC) at 9.3 A peak pulse current (IPPM), and 1500 W peak pulse power dissipation (PPPM) under 10/1000 μs waveform - deployed in automotive power supply inputs, industrial motor drive control circuits, and telecom interface protection.
For engineers reviewing the SMCJ100AHE3/57T datasheet, SMCJ100AHE3/57T pinout, SMCJ100AHE3/57T application, or SMCJ100AHE3/57T equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance data, junction-to-lead thermal path, and real-world design implications for overvoltage hardening in harsh-environment electronics.
Technical Context
The SMCJ100AHE3/57T operates as a unidirectional avalanche diode with glass-passivated junction, delivering fast response to transients (<1 ns) and low incremental surge resistance. Its breakdown voltage (VBR) is specified at 111–123 V (min/max) with 1 mA test current, and it maintains stable clamping performance across -55 °C to +150 °C operating junction temperature range.
Thermal design is supported by RθJL = 15 °C/W (junction-to-lead) and RθJA = 75 °C/W (junction-to-ambient on recommended 8.0 mm × 8.0 mm copper pads). The device meets JESD201 Class 2 whisker resistance and MSL Level 1 per J-STD-020, with peak reflow temperature up to 260 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - Maximum continuous reverse working voltage before clamping initiates; defines safe DC operating margin. |
| VBR (min/max) | 111 V / 123 V at 1 mA - Ensures reliable turn-on above system nominal voltage while avoiding false triggering. |
| VC @ IPPM | 162 V at 9.3 A (10/1000 μs) - Clamped voltage seen by protected IC during worst-case surge; determines downstream voltage stress. |
| PPPM | 1500 W - Peak transient energy absorption capability; enables protection against IEC 61000-4-5 Level 4 surges. |
| TJ max. | +150 °C - Enables operation in under-hood automotive and industrial environments without derating below 125 °C ambient. |
| RθJL | 15 °C/W - Low thermal resistance to PCB leads supports efficient heat transfer during repetitive surge events. |
| AEC-Q101 | Qualified - Confirmed reliability for automotive applications including engine control units and ADAS power supplies. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, polarity indicated by cathode band. Dimensions: 7.11 mm × 6.22 mm × 2.62 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Anode-side connection point for unidirectional clamping | Connects to protected line; clamps positive transients to ground when voltage exceeds VBR. |
| Anode | Reference/ground return path | Must be tied to low-impedance system ground plane to ensure effective clamping and minimize ground bounce. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable, repeatable avalanche behavior over lifetime and temperature; eliminates passivation-related leakage drift. |
| AEC-Q101 qualification | Validated for automotive-grade reliability including HTOL, TC, UHAST, and ESD testing - suitable for ASIL-B systems. |
| Low RθJL (15 °C/W) | Reduces thermal stress during multi-pulse events; extends surge endurance beyond single-event rating. |
| MSL Level 1 (260 °C peak) | Eliminates pre-bake requirement for SMT assembly; compatible with standard lead-free reflow profiles. |
| 1500 W PPPM (10/1000 μs) | Supports robust protection against lightning-induced surges per IEC 61000-4-5 Ed. 3, including coupling network Zc = 2 Ω. |
Applications
| Automotive Power Input Protection | Industrial Motor Drive Control |
|---|---|
|
Use Scenario: 12 V/24 V battery-fed ECUs exposed to load dump (ISO 16750-2) and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input rail and chassis ground to clamp positive overvoltage spikes. Use Value: Withstands 35 V/100 ms load dump pulses and limits clamped voltage to ≤162 V, protecting downstream DC-DC converters and microcontrollers. |
Use Scenario: Gate driver supply rails in 3-phase inverter modules subjected to switching-induced dv/dt coupling. IC Role / Device Role / Timing Role: Rail-to-rail TVS on isolated gate supply (e.g., 15 V bias) to suppress coupled transients from power stage switching. Use Value: Fast <1 ns response and 1500 W rating prevent gate oxide damage during high-frequency IGBT/MOSFET commutation. |
| Telecom Interface Protection | Consumer Power Adapter Output |
|
Use Scenario: RS-485/RS-232 data lines in outdoor base stations subject to induced lightning surges. IC Role / Device Role / Timing Role: Unidirectional TVS on VCC line feeding transceiver ICs to protect internal LDOs and ESD structures. Use Value: 100 V VWM ensures no conduction during normal 48 V phantom power operation; 162 V VC prevents latch-up in transceivers. |
Use Scenario: Secondary-side 12 V output of wall-mounted AC/DC adapters powering smart home hubs. IC Role / Device Role / Timing Role: Final-stage overvoltage clamp on regulated output to safeguard connected USB-C PD controllers and PMICs. Use Value: AEC-Q101 qualification and 1500 W rating provide margin against capacitor discharge faults and transformer flyback overshoot. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ100A-E3/57T | Lower PPPM (400 W), smaller SMA package (DO-214AC), higher RθJA (125 °C/W) | Limited to lower-energy surges (IEC 61000-4-5 Level 2); unsuitable for automotive load dump. | Select when board space is constrained and surge threat level is moderate (e.g., consumer USB ports). |
| SMCJ100CAHE3/57T | Bidirectional variant; same VWM (100 V), symmetric clamping in both polarities; identical PPPM and package | Required for AC-coupled or floating signal lines (e.g., Ethernet PHY, audio differential pairs) where negative transients occur. | Choose only when bidirectional protection is mandated; adds no benefit for DC rail protection. |
Compared with SMAJ100A-E3/57T, SMCJ100AHE3/57T delivers 275 % higher surge energy handling and superior thermal performance; versus SMCJ100CAHE3/57T, it offers optimized cost and layout simplicity for unidirectional DC applications without sacrificing clamping integrity.
Availability
SMCJ100AHE3/57T is available at Aetrix Electronics and suitable for automotive power modules, industrial motor drives, telecom infrastructure equipment, and consumer power adapter designs requiring stable component supply and long-term lifecycle support.
Supply support for SMCJ100AHE3/57T 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 validation.
The SMCJ series targets high-energy transient suppression in demanding environments - engineered for automotive, industrial, and telecom applications where failure modes must be rigorously controlled and surge immunity certified.
FAQ
What is the clamping voltage of SMCJ100AHE3/57T at its rated peak pulse current?
The SMCJ100AHE3/57T has a maximum clamping voltage (VC) of 162 V when subjected to its rated peak pulse current (IPPM) of 9.3 A under the standard 10/1000 μs waveform. This value is measured at the device terminals with specified mounting conditions (0.31" × 0.31" copper pads), and defines the upper voltage limit imposed on protected circuitry during surge events. The SMCJ100AHE3/57T maintains this clamping performance across its full operating temperature range.
Is SMCJ100AHE3/57T qualified for automotive applications?
Yes, SMCJ100AHE3/57T is AEC-Q101 qualified, confirming its suitability for automotive use cases including engine control units, body electronics, and ADAS power supplies. The HE3 suffix explicitly denotes RoHS-compliant and AEC-Q101 qualified construction. Qualification covers stress tests such as high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing - all documented per the Vishay SMCJ family qualification report. SMCJ100AHE3/57T meets these requirements without derating.
What is the thermal resistance from junction to lead (RθJL) for SMCJ100AHE3/57T?
The SMCJ100AHE3/57T has a typical junction-to-lead thermal resistance (RθJL) of 15 °C/W, measured under standard test conditions. This low value reflects efficient heat conduction from the silicon die through the internal lead frame to the PCB pads, enabling sustained surge handling in multi-pulse scenarios. When designing thermal relief, this parameter must be used in conjunction with RθJA (75 °C/W) and actual pad layout to calculate junction temperature rise. The SMCJ100AHE3/57T leverages this thermal path to maintain reliability during repeated transient events.
How does the breakdown voltage tolerance of SMCJ100AHE3/57T affect circuit design?
The SMCJ100AHE3/57T specifies a breakdown voltage (VBR) range of 111 V to 123 V at 1 mA test current, representing ±5.5 % tolerance around the nominal 117 V midpoint. This tolerance requires designers to verify that the minimum VBR (111 V) exceeds the maximum expected steady-state voltage (including ripple and tolerance) on the protected line - typically by ≥10 % margin - to avoid premature conduction. The SMCJ100AHE3/57T's tight VBR distribution ensures predictable turn-on behavior across production lots and temperature extremes.
Can SMCJ100AHE3/57T replace SMCJ100A-E3/57T in existing designs?
Yes, SMCJ100AHE3/57T is a direct replacement for SMCJ100A-E3/57T in terms of footprint, electrical specifications, and thermal performance - the HE3 suffix adds AEC-Q101 qualification while retaining identical VWM, VBR, VC, PPPM, and package dimensions. No PCB or schematic changes are required. The SMCJ100AHE3/57T maintains full compatibility with legacy SMCJ100A-E3/57T layouts and provides enhanced reliability assurance for automotive and industrial deployments.
SMCJ100AHE3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 100V
- Voltage - Breakdown (Min):
- 111V
- Voltage - Clamping (Max) @ Ipp:
- 162V
- Current - Peak Pulse (10/1000µs):
- 9.3A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SMCJ100AHE3/57T FAQ
1.How can I place an order for SMCJ100AHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ100AHE3/57T 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 SMCJ100AHE3/57T reliable?
The price and inventory of SMCJ100AHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ100AHE3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ100AHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ100AHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ100AHE3/57T?
SMCJ100AHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ100AHE3/57T 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 SMCJ100AHE3/57T?
For technical support, including SMCJ100AHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ100AHE3/57T requirements.
6.How does Aetrix verify that SMCJ100AHE3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ100AHE3/57T 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 SMCJ100AHE3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ100AHE3/57T?
All SMCJ100AHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ100AHE3/57T, 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 SMCJ100AHE3/57T part is unused and in its original packaging.
Return procedure for SMCJ100AHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ100AHE3/57T Tags
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