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Vishay General Semiconductor - Diodes Division SMCJ100CA-M3/57T
- Part No.:
- SMCJ100CA-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ100CA-M3/57T.pdf
- Description:
- TVS DIODE 100VWM 162VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,258
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Product details
Overview
SMCJ100CA-M3/57T from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 100 V standoff voltage (VWM), 162 V maximum clamping voltage (VC) at 9.3 A peak pulse current (IPPM), and 1500 W peak pulse power dissipation (10/1000 µs waveform), commonly deployed on power rails and signal lines in automotive ECUs and industrial motor drives.
For engineers reviewing the SMCJ100CA-M3/57T datasheet, SMCJ100CA-M3/57T pinout, SMCJ100CA-M3/57T application, or SMCJ100CA-M3/57T equivalent, key selection criteria include bidirectional clamping symmetry, low incremental surge resistance, AEC-Q101 qualification eligibility (via HM3 suffix), and compatibility with automated SMT placement on 8 mm × 8 mm copper pads.
Technical Context
The SMCJ100CA-M3/57T operates as a silicon avalanche diode with symmetrical breakdown behavior in both polarities, enabling protection against voltage transients regardless of polarity-critical for AC-coupled or floating signal paths. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and repeatable clamping performance across temperature (-55 °C to +150 °C).
It delivers fast response time (<1.0 ns) and low dynamic impedance, achieving 162 V clamping at 9.3 A under standardized 10/1000 µs surge conditions. Thermal resistance is characterized at RθJA = 75 °C/W (on recommended pad layout) and RθJL = 15 °C/W, supporting reliable operation in high-power transient events without thermal runaway.
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 - Breakdown occurs within this range at 1 mA test current, defining turn-on threshold |
| VC @ IPPM | 162 V - Clamped voltage during 9.3 A 10/1000 µs surge, limiting downstream stress |
| PPPM | 1500 W - Peak transient power handling capability under standard waveform |
| IPPM | 9.3 A - Maximum non-repetitive surge current the device safely clamps |
| TJ max | +150 °C - Maximum junction temperature, enabling use in under-hood automotive environments |
| Package | SMC (DO-214AB) - Surface-mount package with 8.0 mm × 8.0 mm thermal pad footprint |
Pinout & Package
SMCJ100CA-M3/57T uses the SMC (DO-214AB) package: a surface-mount, bidirectional device with no polarity marking; both terminals are electrically symmetric and function as interchangeable anode/cathode pairs depending on transient polarity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Interchangeable terminal; conducts during positive or negative overvoltage events |
| Terminal 2 | Anode/Cathode (bidirectional) | Interchangeable terminal; completes symmetrical clamping path with Terminal 1 |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals or floating buses without polarity concerns |
| 1500 W peak pulse power | Withstands high-energy transients such as ISO 7637-2 Pulse 5a (load dump) in automotive systems |
| Halogen-free, RoHS-compliant (M3) | Meets environmental compliance requirements for industrial and automotive production |
| MSL Level 1 (260 °C reflow) | Supports standard lead-free PCB assembly without moisture sensitivity limitations |
| Low leakage <1.0 µA at VWM | Minimizes standby power loss and avoids false triggering in low-current sensor circuits |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V supply inputs in engine control units (ECUs) and body control modules (BCMs) against load dump and inductive switching spikes. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of DC-DC converters and microcontrollers. Use Value: Limits rail voltage to ≤162 V during 1500 W transients, preventing damage to downstream 3.3 V/5 V logic and analog front-ends. | Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loops) and digital I/O (CAN, LIN) in factory automation sensors exposed to ESD and cable discharge events. IC Role / Device Role / Timing Role: Bidirectional shunt protector located at connector interface, before signal conditioning circuitry. Use Value: Symmetrical clamping ensures equal protection for positive/negative transients, preserving signal integrity in bidirectional communication links. |
| Telecom Line Surge Protection | Consumer Power Adapter Input Stage |
Use Scenario: Front-end protection of Ethernet PHY interfaces and PoE injectors subjected to lightning-induced surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: First-line TVS element on RJ45 magnetics secondary side or DC input rails. Use Value: 9.3 A IPPM capacity handles 10/1000 µs surges up to 4 kV (line-to-ground), meeting telecom immunity standards. | Use Scenario: Input-stage transient suppression in universal-input AC/DC adapters (90–264 VAC) for smart home devices. IC Role / Device Role / Timing Role: Secondary-side DC bus clamp after bridge rectifier and bulk capacitor. Use Value: 100 V VWM aligns with typical 120 VDC post-rectifier rails, providing margin against line surges while avoiding conduction during normal operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100CA-M3 | Lower PPPM (600 W), smaller SMB package (DO-214AA), lower IPPM (3.7 A) | Suitable only for lower-energy transients; not rated for automotive load dump | Select when space-constrained layouts require smaller footprint and surge energy is ≤600 W |
| 1.5KE100CA | Through-hole TO-218 package, same VWM/VC, higher IPPM (12.1 A), but no MSL-1 rating | Not compatible with automated SMT assembly; limited to manual or wave-soldered boards | Choose for legacy through-hole designs or where higher surge margin justifies larger form factor and process overhead |
Compared with SMBJ100CA-M3 and 1.5KE100CA, the SMCJ100CA-M3/57T uniquely balances 1500 W surge capability, SMT manufacturability, and halogen-free compliance-making it optimal for new automotive and industrial designs requiring AEC-Q101 alignment and high-volume placement.
Availability
SMCJ100CA-M3/57T is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface protection, and telecom line surge protection requiring stable component supply and full traceability.
Supply support for SMCJ100CA-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
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 does the "CA" suffix indicate in SMCJ100CA-M3/57T?
The "CA" suffix denotes that the SMCJ100CA-M3/57T is a bidirectional transient voltage suppressor. Unlike unidirectional variants (e.g., SMCJ100A), it provides symmetrical clamping in both polarities-ideal for protecting AC-coupled lines, differential buses, or floating nodes where voltage transients may occur with either polarity. This eliminates the need for polarity-aware placement during assembly.
Is SMCJ100CA-M3/57T qualified for automotive applications?
The base SMCJ100CA-M3/57T is halogen-free and RoHS-compliant but not AEC-Q101 qualified. However, Vishay offers the HM3 variant (e.g., SMCJ100CAHM3_X) which carries full AEC-Q101 qualification. For automotive-grade deployment, specify the HM3 suffix with appropriate revision code (e.g., A or B); the SMCJ100CA-M3/57T itself meets all electrical and mechanical specs required for automotive use except formal qualification documentation.
What is the mounting pad layout recommendation for SMCJ100CA-M3/57T?
Vishay specifies a minimum 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pad area per terminal for SMCJ100CA-M3/57T to achieve rated thermal and surge performance. This pad size supports the specified RθJA = 75 °C/W and ensures reliable dissipation of 1500 W peak pulses. Smaller pads will derate both power handling and surge current capability, as shown in Figure 2 of the datasheet.
How does SMCJ100CA-M3/57T compare to SMCJ100A in circuit behavior?
The SMCJ100CA-M3/57T and SMCJ100A share identical VWM (100 V), VBR (111–123 V), and VC (162 V) ratings-but differ fundamentally in polarity. SMCJ100A is unidirectional with cathode band marking and conducts only during reverse-biased surges; SMCJ100CA-M3/57T is bidirectional with no marking and clamps equally for both polarities. Circuit placement must reflect this: SMCJ100CA-M3/57T connects across lines without orientation concern.
What is the maximum junction temperature and thermal resistance of SMCJ100CA-M3/57T?
The SMCJ100CA-M3/57T has a maximum junction temperature (TJ) of +150 °C and specified thermal resistances of RθJA = 75 °C/W (junction-to-ambient, on recommended 8 mm × 8 mm pads) and RθJL = 15 °C/W (junction-to-lead). These values enable reliable operation in high-temperature environments such as engine compartments or enclosed industrial enclosures, provided board-level thermal design adheres to Vishay's layout guidelines.
SMCJ100CA-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:
- -
- Bidirectional Channels:
- 1
- 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)
SMCJ100CA-M3/57T FAQ
1.How can I place an order for SMCJ100CA-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ100CA-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 SMCJ100CA-M3/57T reliable?
The price and inventory of SMCJ100CA-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 SMCJ100CA-M3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ100CA-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ100CA-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ100CA-M3/57T?
SMCJ100CA-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ100CA-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 SMCJ100CA-M3/57T?
For technical support, including SMCJ100CA-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ100CA-M3/57T requirements.
6.How does Aetrix verify that SMCJ100CA-M3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ100CA-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 SMCJ100CA-M3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ100CA-M3/57T?
All SMCJ100CA-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ100CA-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 SMCJ100CA-M3/57T part is unused and in its original packaging.
Return procedure for SMCJ100CA-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ100CA-M3/57T Tags
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