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Vishay General Semiconductor - Diodes Division SMCJ5.0CA-M3/57T
- Part No.:
- SMCJ5.0CA-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ5.0CA-M3/57T.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,904
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Product details
Overview
SMCJ5.0CA-M3/57T from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode designed for robust overvoltage protection in DC power rails and signal lines. It features a 5.0 V stand-off voltage (VWM), 1500 W peak pulse power rating (10/1000 µs), and clamps transients to ≤9.2 V at 163 A, making it suitable for protecting sensitive ICs and MOSFETs in automotive and industrial control systems.
For engineers reviewing the SMCJ5.0CA-M3/57T datasheet, SMCJ5.0CA-M3/57T pinout, SMCJ5.0CA-M3/57T application, or SMCJ5.0CA-M3/57T equivalent, key selection criteria include bidirectional clamping capability, low clamping voltage under high surge current, halogen-free RoHS-compliant packaging (M3 suffix), and compatibility with automated SMT placement on standard PCB layouts.
Technical Context
This device operates as a voltage-clamped crowbar during transient events: when reverse voltage exceeds its breakdown threshold (6.40–7.07 V at 10 mA), it enters avalanche conduction within <1 ps, diverting surge current away from protected circuitry. Its bidirectional symmetry ensures identical clamping behavior in both polarities - critical for AC-coupled or floating signal paths.
The SMCJ5.0CA-M3/57T uses a glass-passivated silicon junction housed in an SMC (DO-214AB) package with matte tin-plated leads. Thermal resistance is 75 °C/W (junction-to-ambient) and 15 °C/W (junction-to-lead), enabling reliable operation up to 150 °C junction temperature under defined pad layout conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - Maximum continuous reverse operating voltage before leakage exceeds 1000 µA; defines safe DC bias margin. |
| VBR min/max | 6.40 V / 7.07 V at 10 mA - Ensures consistent avalanche initiation across production lots; guarantees turn-on within tight tolerance. |
| VC @ IPPM | ≤9.2 V at 163 A (10/1000 µs) - Clamping voltage directly limits stress on downstream components during ESD or load-switching surges. |
| PPPM | 1500 W - Peak surge energy handling capacity under standardized waveform; supports IEC 61000-4-5 Level 4 compliance with proper layout. |
| ID @ VWM | ≤1000 µA - Low leakage preserves battery life and avoids false triggering in low-power sensor interfaces. |
| TJ max | +150 °C - Enables use in under-hood automotive environments and industrial enclosures without derating below ambient. |
| Package | SMC (DO-214AB) - Standardized surface-mount outline with 8.0 mm × 8.0 mm copper pads per terminal for thermal and mechanical reliability. |
Pinout & Package
SMCJ5.0CA-M3/57T is a two-terminal bidirectional TVS diode in SMC (DO-214AB) package. No polarity marking is present on the case; terminals are symmetrical and interchangeable. The package has no internal cathode/anode designation - both ends function identically under reverse or forward transient stress.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Transient Current Path (Bidirectional) | Connects to either side of protected line; carries full surge current in either direction during clamping event. |
| Terminal 2 | Transient Current Path (Bidirectional) | Completes low-inductance path to ground or return rail; requires symmetric PCB trace routing for balanced impedance. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR and VC performance in both polarities - eliminates need for orientation-aware placement on AC or differential lines. |
| Halogen-free, RoHS-compliant (M3) | Meets JESD201 Class 2 whisker resistance and UL 94 V-0 flammability - required for automotive Tier-1 and green electronics programs. |
| Low incremental surge resistance | Enables tighter VC specification (≤9.2 V) at high IPPM - reduces voltage overshoot seen by protected ICs during fast transients. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without pre-baking - supports high-yield automated assembly. |
| AEC-Q101 qualified option available | Base P/NHM3_X variant meets automotive qualification - SMCJ5.0CA-M3/57T shares identical die and process, differing only in test screening. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 5 V CAN transceiver power input against load dump and jump-start surges in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between VCC and GND, absorbing >100 A transients without failure. Use Value: Prevents latch-up or permanent damage to transceivers during ISO 7637-2 Pulse 5a events while maintaining <5.5 V rail stability. |
Use Scenario: Safeguarding analog output pins of pressure sensors exposed to ESD and cable discharge in factory automation. IC Role / Device Role / Timing Role: Low-capacitance shunt protector on 0–5 V ratiometric output line, grounded at system reference. Use Value: Limits transient voltage to ≤9.2 V during ±8 kV contact ESD (IEC 61000-4-2), preserving ADC accuracy and sensor calibration integrity. |
| Telecom Line Surge Suppression | Consumer USB Port Protection |
|
Use Scenario: Shielding RS-485 transceiver I/O lines from lightning-induced surges in outdoor base stations. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential pair (A/B), referenced to local ground plane. Use Value: Clamps common-mode surges to <9.2 V while sustaining 1500 W peak power - maintains data integrity during IEC 61000-4-5 4 kV tests. |
Use Scenario: Adding secondary overvoltage protection on VBUS line of USB-C receptacles in portable monitors. IC Role / Device Role / Timing Role: Standoff-rated shunt device between 5 V VBUS and chassis ground, upstream of USB PD controller. Use Value: Blocks sustained overvoltage (>5.5 V) from faulty chargers while surviving 10/1000 µs surges up to 163 A without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC5.0CA-TB | Same VWM (5.0 V) and PPPM (1500 W), but TO-220AB package; higher RθJA (100 °C/W) and larger footprint. | Requires through-hole mounting and heatsinking; unsuitable for dense SMT layouts. | Select when board space allows and higher thermal mass is needed for repetitive surge duty cycles. |
| SMCJ5.0A-M3/57T | Unidirectional version; same VWM, VBR, VC, and package - differs only in polarity marking and single-direction conduction. | Cannot protect AC or floating signals; requires correct cathode orientation during placement. | Choose only for DC-only rails where polarity is fixed and reverse-voltage risk is absent. |
Compared with SAC5.0CA-TB and SMCJ5.0A-M3/57T, the SMCJ5.0CA-M3/57T uniquely delivers bidirectional clamping in a compact SMC package with halogen-free compliance - optimizing for automotive SMT lines, floating signal protection, and regulatory-constrained designs without sacrificing surge rating or thermal performance.
Availability
SMCJ5.0CA-M3/57T is available at Aetrix Electronics and suitable for automotive ECU power conditioning, industrial sensor interface hardening, telecom line surge suppression, and consumer USB port protection requiring stable component supply and full traceability.
Supply support for SMCJ5.0CA-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, TVS devices, and power MOSFETs for high-reliability applications.
The SMCJ series was engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where robustness, consistency, and AEC-Q101 readiness are mandatory.
FAQ
What is the clamping voltage of SMCJ5.0CA-M3/57T at its rated peak pulse current?
The SMCJ5.0CA-M3/57T clamps to a maximum of 9.2 V at its rated peak pulse current of 163 A under the 10/1000 µs waveform. This value is measured across the device terminals during standardized surge testing and defines the upper voltage limit imposed on protected circuitry during transient events. The SMCJ5.0CA-M3/57T achieves this low clamping voltage due to its low incremental surge resistance and optimized silicon junction design.
Is SMCJ5.0CA-M3/57T suitable for automotive applications?
Yes - the SMCJ5.0CA-M3/57T is manufactured using the same die and process as AEC-Q101-qualified variants (e.g., SMCJ5.0CAHM3_A/H). While the M3/57T suffix denotes commercial-grade screening, its construction, thermal specs (TJ max = +150 °C), and robust surge capability make it widely deployed in non-safety-critical automotive subsystems such as body control modules and infotainment power rails. For ASIL-B/C systems, the HM3_X qualified version is recommended.
How does the bidirectional nature of SMCJ5.0CA-M3/57T affect PCB layout?
The bidirectional nature of SMCJ5.0CA-M3/57T eliminates polarity constraints during placement - no cathode band or orientation marking exists on the SMC package. Layout requires symmetric, low-inductance traces to both terminals, with equal copper area (minimum 8.0 mm × 8.0 mm per pad) to ensure balanced thermal dissipation and consistent clamping performance. Unlike unidirectional TVS diodes, the SMCJ5.0CA-M3/57T can be rotated 180° without functional impact.
What is the maximum reverse leakage current of SMCJ5.0CA-M3/57T at its stand-off voltage?
The SMCJ5.0CA-M3/57T exhibits a maximum reverse leakage current (ID) of 1000 µA at its 5.0 V stand-off voltage (VWM), tested at 25 °C. This low leakage ensures minimal power loss in always-on circuits and prevents false triggering in high-impedance sensor interfaces. Leakage remains within specification up to +125 °C, though it increases exponentially near TJ max; derating curves in Figure 2 of the datasheet guide thermal design.
Does SMCJ5.0CA-M3/57T meet any industry surge immunity standards out of the box?
The SMCJ5.0CA-M3/57T itself is a component-level device and does not "meet" system-level standards like IEC 61000-4-5 or ISO 7637-2 independently. However, when implemented with proper PCB layout - including minimum 8.0 mm × 8.0 mm copper pads per terminal and short, wide traces - the SMCJ5.0CA-M3/57T enables compliant designs for IEC 61000-4-5 Level 4 (4 kV line-earth) and ISO 7637-2 Pulse 5a (load dump). System validation remains the designer's responsibility.
SMCJ5.0CA-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):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.2V
- Current - Peak Pulse (10/1000µs):
- 163A
- 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)
SMCJ5.0CA-M3/57T FAQ
1.How can I place an order for SMCJ5.0CA-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ5.0CA-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 SMCJ5.0CA-M3/57T reliable?
The price and inventory of SMCJ5.0CA-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 SMCJ5.0CA-M3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ5.0CA-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ5.0CA-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ5.0CA-M3/57T?
SMCJ5.0CA-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ5.0CA-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 SMCJ5.0CA-M3/57T?
For technical support, including SMCJ5.0CA-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ5.0CA-M3/57T requirements.
6.How does Aetrix verify that SMCJ5.0CA-M3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ5.0CA-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 SMCJ5.0CA-M3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ5.0CA-M3/57T?
All SMCJ5.0CA-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ5.0CA-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 SMCJ5.0CA-M3/57T part is unused and in its original packaging.
Return procedure for SMCJ5.0CA-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ5.0CA-M3/57T Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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