Vishay General Semiconductor - Diodes Division SMCJ10A-M3/57T
- Part No.:
- SMCJ10A-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ10A-M3/57T.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AB
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
SMCJ10A-M3/57T from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping voltage transients on power and signal lines. It features 10 V standoff voltage (VWM), 11.1–12.3 V breakdown voltage (VBR) at 1 mA, 17.0 V maximum clamping voltage (VC) at 88.2 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power rails.
For engineers reviewing the SMCJ10A-M3/57T datasheet, SMCJ10A-M3/57T pinout, SMCJ10A-M3/57T application, or SMCJ10A-M3/57T equivalent, key selection criteria include unidirectional polarity, 1500 W surge capability, 17.0 V clamping under rated surge, RoHS-compliant halogen-free construction (M3 suffix), and compatibility with automated SMT placement on standard PCB pads.
Technical Context
The SMCJ10A-M3/57T operates as a silicon avalanche diode with glass-passivated junction, enabling fast response (<1 ns) to transient overvoltages. Its unidirectional configuration uses cathode-band marking and exhibits low incremental surge resistance, ensuring stable clamping during repetitive or single-event surges up to 1500 W.
Thermal performance is defined by RθJA = 75 °C/W and RθJL = 15 °C/W, supporting operation from –55 °C to +150 °C junction temperature. It meets MSL Level 1 per J-STD-020 and is qualified to AEC-Q101 when ordered with HE3/HM3 suffixes - the M3 variant is commercial-grade, halogen-free, and RoHS-compliant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 11.1 V / 12.3 V at IT = 1 mA - guaranteed avalanche initiation range under standardized test current |
| VC @ IPPM | 17.0 V at IPPM = 88.2 A - clamped voltage during full 1500 W transient, defining protected circuit stress level |
| PPPM | 1500 W - peak pulse power handling with 10/1000 µs waveform, critical for IEC 61000-4-5 compliance margin |
| ID @ VWM | 5.0 µA - reverse leakage at standoff voltage, ensuring minimal standby power loss in high-impedance circuits |
| TJ max | +150 °C - maximum junction temperature, enabling use in under-hood automotive and industrial environments |
| Package | SMC (DO-214AB) - industry-standard surface-mount outline with 8.0 mm × 8.0 mm copper pad thermal requirement |
Pinout & Package
SMCJ10A-M3/57T uses the SMC (DO-214AB) package: molded plastic case with matte tin-plated leads, 0.320" (8.13 mm) body length, 0.246" (6.22 mm) width, and cathode band marking on the unidirectional device.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; conducts during forward surge or bias conditions |
| Cathode (banded end) | Avalanche clamping terminal | Connected to higher-potential side; initiates avalanche breakdown when reverse voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SMC package | Enables high-density PCB layouts and compatibility with automated pick-and-place equipment |
| Glass-passivated junction | Ensures long-term reliability and stable VBR over temperature and lifetime cycling |
| 1500 W peak pulse rating | Provides robust protection against IEC 61000-4-5 Level 4 (4 kV) surges on 12 V/24 V systems |
| Halogen-free, RoHS-compliant (M3) | Meets environmental compliance requirements for commercial electronics without compromising surge performance |
| MSL Level 1 rating | Allows unlimited floor life and reflow soldering at 260 °C peak without preconditioning |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs and lighting modules from load-dump and inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and ground to clamp surges above 17.0 V while maintaining 10 V nominal operation. Use Value: Prevents damage to downstream DC-DC converters and microcontrollers during ISO 7637-2 Pulse 5a events. | Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loops) in PLC I/O modules from field-wiring ESD and surge coupling. IC Role / Device Role / Timing Role: TVS connected across signal and return path to limit transient voltage to ≤17.0 V during fast-rising events. Use Value: Maintains signal integrity and prevents latch-up in precision op-amps and ADC front-ends during 8 kV contact ESD per IEC 61000-4-2. |
| Consumer Power Adapter Input Stage | Telecom DC Feeder Line Protection |
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters supplying USB-C PD or PoE-powered devices. IC Role / Device Role / Timing Role: Unidirectional clamp on +VOUT rail referenced to GND, absorbing flyback spikes from transformer leakage inductance. Use Value: Limits voltage overshoot to 17.0 V during no-load or dynamic load transitions, protecting synchronous rectifiers and post-regulators. | Use Scenario: DC power feed protection in remote radio units (RRUs) powered over 48 V telecom lines exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary-stage TVS on +48 V input, configured anode-to-rail and cathode-to-ground to suppress positive transients. Use Value: Withstands 1500 W surges per GR-1089-CORE Section 4.5.2.2, preventing damage to upstream DC/DC and monitoring ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A-M3/57T | Lower PPPM (400 W), smaller SMA package, same VWM/VBR/VC specs | Reduced surge margin; suitable only for sub-IEC 61000-4-5 Level 2 environments | Select when board space is constrained and surge threat level is low (e.g., internal signal lines) |
| SMCJ10CA-M3/57T | Bidirectional version; identical VWM/VBR/VC but symmetrical clamping in both polarities | Required for AC-coupled or floating lines where negative transients occur (e.g., RS-485, CAN bus) | Choose for bidirectional protection needs; not a drop-in replacement due to polarity difference |
Compared with SMAJ10A-M3/57T and SMCJ10CA-M3/57T, the SMCJ10A-M3/57T delivers 3.75× higher surge power handling in the same footprint family and provides optimized unidirectional clamping for DC power rails - making it the preferred choice for automotive and industrial primary-side protection where 1500 W margin is mandatory.
Availability
SMCJ10A-M3/57T is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DC feeder line surge suppression requiring stable component supply and halogen-free compliance.
Supply support for SMCJ10A-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, efficiency, and application-specific optimization.
The SMCJ series is part of Vishay's TRANSZORB® TVS platform, engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where robustness and repeatable clamping performance are critical.
FAQ
What is the clamping voltage of SMCJ10A-M3/57T at its rated peak pulse current?
The SMCJ10A-M3/57T has a maximum clamping voltage (VC) of 17.0 V at its rated peak pulse current (IPPM) of 88.2 A, measured using a 10/1000 µs waveform. This value defines the upper voltage limit imposed on the protected circuit during a full 1500 W transient event and is confirmed in the Vishay datasheet revision 09-Jan-2024, page 2. The SMCJ10A-M3/57T maintains this clamping performance across its specified operating temperature range.
Is SMCJ10A-M3/57T suitable for automotive applications?
The SMCJ10A-M3/57T is halogen-free and RoHS-compliant (M3 suffix) but is not AEC-Q101 qualified in this ordering variant. For automotive use, Vishay specifies AEC-Q101 qualification only for parts with HE3 or HM3 suffixes (e.g., SMCJ10AHE3_A/H). The SMCJ10A-M3/57T remains suitable for non-safety-critical automotive subsystems where commercial-grade reliability suffices, provided system-level validation confirms robustness under real-world transients.
What does the "M3" suffix indicate in SMCJ10A-M3/57T?
The "M3" suffix in SMCJ10A-M3/57T denotes halogen-free, RoHS-compliant construction meeting JEDEC J-STD-020 moisture sensitivity level 1 and JESD 201 class 2 whisker resistance. It distinguishes the part from the "E3" (RoHS-compliant, non-halogen-free) and "HM3" (halogen-free + AEC-Q101 qualified) variants. The SMCJ10A-M3/57T is intended for commercial-grade applications requiring environmentally compliant packaging without automotive qualification.
How is the polarity marked on SMCJ10A-M3/57T?
The SMCJ10A-M3/57T is a unidirectional TVS diode with polarity indicated by a cathode band on the SMC (DO-214AB) package body. During PCB layout, the banded end must be connected to the higher-potential node (e.g., VBUS or signal line), while the anode connects to ground or lower potential. This orientation ensures proper avalanche clamping during reverse overvoltage events - incorrect placement renders the SMCJ10A-M3/57T ineffective for transient suppression.
What is the thermal resistance from junction to ambient for SMCJ10A-M3/57T?
The SMCJ10A-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, per Vishay datasheet page 3. This value assumes still air conditions and defines the steady-state temperature rise above ambient at 6.5 W power dissipation. For pulsed operation, transient thermal impedance curves (Fig. 5) govern short-duration heating behavior.
SMCJ10A-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):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 88.2A
- 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)
SMCJ10A-M3/57T FAQ
1.How can I place an order for SMCJ10A-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ10A-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 SMCJ10A-M3/57T reliable?
The price and inventory of SMCJ10A-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 SMCJ10A-M3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ10A-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ10A-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ10A-M3/57T?
SMCJ10A-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ10A-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 SMCJ10A-M3/57T?
For technical support, including SMCJ10A-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ10A-M3/57T requirements.
6.How does Aetrix verify that SMCJ10A-M3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ10A-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 SMCJ10A-M3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ10A-M3/57T?
All SMCJ10A-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ10A-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 SMCJ10A-M3/57T part is unused and in its original packaging.
Return procedure for SMCJ10A-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ10A-M3/57T Tags

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