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Vishay General Semiconductor - Diodes Division SMCJ100A-M3/57T
- Part No.:
- SMCJ100A-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ100A-M3/57T.pdf
- Description:
- TVS DIODE 100VWM 162VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,110
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Product details
Overview
SMCJ100A-M3/57T 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 with 100 V standoff voltage, 162 V clamping voltage at 9.3 A peak pulse current, and 1500 W peak pulse power rating. It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients and lightning-induced surges in industrial and automotive power systems.
For engineers reviewing the SMCJ100A-M3/57T datasheet, SMCJ100A-M3/57T pinout, SMCJ100A-M3/57T application, or SMCJ100A-M3/57T equivalent, key selection criteria include unidirectional polarity, 100 V VWM, 162 V VC clamping under 10/1000 µs waveform, halogen-free RoHS compliance (M3 suffix), and AEC-Q101 qualification eligibility via HM3 variant.
Technical Context
The SMCJ100A-M3/57T uses a glass-passivated silicon junction to achieve fast response time (<1 ps) and low incremental surge resistance, enabling effective clamping of transient overvoltages before downstream components are damaged. Its unidirectional architecture provides reverse-biased protection only, with cathode band marking and forward voltage drop of 3.5 V at 100 A.
Thermally, it features RθJA = 75 °C/W and RθJL = 15 °C/W, supporting operation from –55 °C to +150 °C junction temperature. The device meets MSL level 1 per J-STD-020 and is rated for 200 A non-repetitive forward surge current (8.3 ms half-sine).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 111 V / 123 V at 1 mA - Verified breakdown threshold range ensuring reliable turn-on margin |
| VC @ IPPM | 162 V at 9.3 A - Clamped voltage during 10/1000 µs surge, limiting stress on protected circuitry |
| PPPM | 1500 W - Peak pulse power handling capability under standardized transient waveform |
| IFSM | 200 A - Single half-sine surge current rating (8.3 ms), critical for inductive load switching events |
| TJ max | +150 °C - Maximum junction temperature enabling use in under-hood automotive and industrial environments |
| Package | SMC (DO-214AB) - Standardized surface-mount outline with 8.0 mm × 8.0 mm copper pad thermal requirement |
Pinout & Package
SMCJ100A-M3/57T is housed in an SMC (DO-214AB) package with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Polarity is marked by a cathode band on the unidirectional device body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or lower-potential rail in unidirectional TVS configuration |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., power rail or signal trace); band denotes this end |
Key Features
| Feature | Design Value |
|---|---|
| Halogen-free, RoHS-compliant construction | M3 suffix confirms full halogen-free material set meeting IEC 61249-2-21 and JEDEC J-STD-020 requirements |
| Low incremental surge resistance | Enables tighter clamping voltage window (VC − VBR = 49 V), reducing voltage overshoot during fast transients |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and reflow without baking, simplifying SMT assembly logistics |
| 1500 W peak pulse power rating | Supports IEC 61000-4-5 Level 4 (4 kV line-to-line, 2 kV line-to-ground) surge immunity compliance |
| 10/1000 µs waveform compatibility | Validated for standard lightning surge testing per ANSI/IEEE C62.35, ensuring predictable clamping behavior |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs from load dump and alternator transients in passenger vehicles and commercial trucks. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp reverse-polarity and surge events. Use Value: Limits peak voltage to ≤162 V during 100 A load dump pulses, preventing damage to MCU power supplies and CAN transceivers. | Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loops) of pressure/temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: TVS mounted across signal and return paths to absorb ESD and switching noise from nearby motor drives. Use Value: Clamps transients within 1 ns while maintaining <1 µA leakage at 100 V, preserving signal integrity and measurement accuracy. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Safeguarding PoE-powered network switches and base stations against induced surges on 48 V DC input rails. IC Role / Device Role / Timing Role: Primary surge suppression stage upstream of DC/DC converters and hot-swap controllers. Use Value: Absorbs up to 1500 W of transient energy without degradation, meeting GR-1089-CORE telecom immunity standards. | Use Scenario: Protecting gate drivers and microcontrollers in washing machine motor control boards from back-EMF spikes during brushless motor commutation. IC Role / Device Role / Timing Role: Unidirectional TVS connected from half-bridge output node to ground to clamp inductive kickback. Use Value: Withstands 200 A single-pulse surge (8.3 ms), eliminating need for external snubbers in cost-sensitive white goods designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100A-M3 | Lower PPPM (600 W), smaller SMB package (DO-214AA), same VWM/VC ratings | Reduced surge handling; suitable only for lower-energy threats (IEC 61000-4-2 ESD, not lightning) | Select when board space is constrained and surge threat level is limited to Class 3 ESD or low-energy switching noise |
| SMCJ100CA-M3 | Bidirectional version; identical VWM, VBR, VC, and PPPM, but symmetrical clamping in both polarities | Required for AC-coupled or floating signal lines where polarity reversal may occur | Choose for RS-485, CAN FD, or Ethernet PHY protection where bidirectional surge immunity is mandatory |
Compared with SMBJ100A-M3 and SMCJ100CA-M3, the SMCJ100A-M3/57T delivers higher surge robustness in unidirectional configurations while maintaining industry-standard SMC footprint-making it optimal for automotive and industrial DC power rail protection where 1500 W capability and halogen-free compliance are required.
Availability
SMCJ100A-M3/57T is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLCs, telecom power supplies, and consumer appliance motor controls requiring stable component supply and halogen-free compliance.
Supply support for SMCJ100A-M3/57T 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, power efficiency, and automotive-grade qualification.
The SMCJ series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments including automotive, industrial, and telecom infrastructure.
FAQ
What is the clamping voltage of SMCJ100A-M3/57T under maximum rated surge current?
The SMCJ100A-M3/57T has a maximum clamping voltage (VC) of 162 V when subjected to its rated peak pulse current of 9.3 A using the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and ensures predictable overvoltage limiting for downstream components. The SMCJ100A-M3/57T maintains this clamping performance across its specified operating temperature range of –55 °C to +150 °C.
Is SMCJ100A-M3/57T qualified for automotive applications?
The SMCJ100A-M3/57T itself carries the M3 halogen-free RoHS suffix and is part of the AEC-Q101-qualified SMCJ family; however, automotive qualification requires the HM3 suffix (e.g., SMCJ100A-HM3/57T). While SMCJ100A-M3/57T shares identical electrical and thermal specs, only HM3 variants undergo full AEC-Q101 stress testing. The SMCJ100A-M3/57T remains suitable for non-automotive industrial and telecom use.
How does the M3 suffix affect the material composition of SMCJ100A-M3/57T?
The M3 suffix on SMCJ100A-M3/57T indicates halogen-free, RoHS-compliant construction per IEC 61249-2-21 and JEDEC J-STD-020, with brominated flame retardants replaced by phosphorus- or nitrogen-based alternatives. This eliminates corrosive halogen gas emission during PCB reflow or end-of-life incineration. The SMCJ100A-M3/57T retains full electrical equivalence to E3-suffix parts while meeting stricter environmental compliance mandates.
What is the thermal resistance from junction to ambient for SMCJ100A-M3/57T?
The SMCJ100A-M3/57T has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on the minimum recommended 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. This value assumes still air conditions and defines the steady-state temperature rise above ambient at 6.5 W power dissipation. For accurate thermal design, the SMCJ100A-M3/57T must be routed with adequate copper area and avoid thermal isolation.
Can SMCJ100A-M3/57T be used in bidirectional signal protection?
No-SMCJ100A-M3/57T is strictly unidirectional and will conduct continuously if reverse-biased beyond its breakdown voltage. For bidirectional protection (e.g., AC lines, differential buses), the SMCJ100CA-M3/57T variant must be used. That part provides symmetrical clamping in both directions with identical VWM, VBR, and VC ratings. Using SMCJ100A-M3/57T in bidirectional roles risks permanent failure due to forward conduction during negative transients.
SMCJ100A-M3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SMCJ100A-M3/57T FAQ
1.How can I place an order for SMCJ100A-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ100A-M3/57T 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 SMCJ100A-M3/57T reliable?
The price and inventory of SMCJ100A-M3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ100A-M3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ100A-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ100A-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ100A-M3/57T?
SMCJ100A-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ100A-M3/57T 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 SMCJ100A-M3/57T?
For technical support, including SMCJ100A-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ100A-M3/57T requirements.
6.How does Aetrix verify that SMCJ100A-M3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ100A-M3/57T 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 SMCJ100A-M3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ100A-M3/57T?
All SMCJ100A-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ100A-M3/57T, 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 SMCJ100A-M3/57T part is unused and in its original packaging.
Return procedure for SMCJ100A-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ100A-M3/57T Tags
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