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Vishay General Semiconductor - Diodes Division SMCJ13CA-M3/57T
- Part No.:
- SMCJ13CA-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ13CA-M3/57T.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,685
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Product details
Overview
SMCJ13CA-M3/57T from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection with 13 V standoff voltage (VWM), 1500 W peak pulse power (PPPM), and clamping voltage of 21.5 V at 69.8 A peak pulse current. It protects sensitive ICs, MOSFETs, and sensor signal lines against inductive switching transients and lightning-induced surges in automotive and industrial systems.
For engineers reviewing the SMCJ13CA-M3/57T datasheet, SMCJ13CA-M3/57T pinout, SMCJ13CA-M3/57T application, or SMCJ13CA-M3/57T equivalent, key selection criteria include bidirectional clamping capability, 1500 W surge rating, 21.5 V max clamping voltage at rated IPPM, halogen-free RoHS-compliant construction (M3 suffix), and AEC-Q101 qualification eligibility via HM3 variant.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional CA configuration, enabling protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 µA at VWM), while the low incremental surge resistance supports fast energy dissipation during 10/1000 µs transients.
The device is rated for continuous operation from −55 °C to +150 °C junction temperature, with thermal resistance of 75 °C/W (junction-to-ambient) on standard 8.0 mm × 8.0 mm copper pads. It meets J-STD-020 MSL Level 1 and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - Maximum reverse working voltage before clamping begins; defines safe operating range for protected circuit |
| VBR min/max | 14.4 V / 15.9 V - Breakdown occurs within this range at 1.0 mA test current; ensures predictable turn-on threshold |
| VC @ IPPM | 21.5 V - Clamping voltage at 69.8 A peak pulse current; limits transient voltage seen by downstream components |
| PPPM | 1500 W - Peak pulse power handling per 10/1000 µs waveform; determines survivability under IEC 61000-4-5 surge events |
| ID @ VWM | ≤1.0 µA - Reverse leakage at standoff voltage; minimizes standby power loss and avoids false triggering |
| Package | SMC (DO-214AB) - Surface-mount outline with 7.75 mm × 6.22 mm footprint; optimized for automated placement and thermal pad layout |
| Compliance | Halogen-free, RoHS-compliant (M3 suffix); UL 94 V-0 molding compound; J-STD-002 solderable terminals |
Pinout & Package
SMCJ13CA-M3/57T uses the SMC (DO-214AB) package - a surface-mount, two-terminal device with no polarity marking for bidirectional operation. The case is symmetrical; both terminals serve as interchangeable anode/cathode depending on transient polarity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Interchangeable terminal; conducts during positive or negative overvoltage events relative to the other terminal |
| Terminal 2 | Anode/Cathode (bidirectional) | Interchangeable terminal; forms symmetrical clamping path with Terminal 1 for AC or differential line protection |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, RS-485 buses, or ungrounded sensor interfaces without polarity concerns |
| 1500 W peak pulse rating | Withstands IEC 61000-4-5 Level 4 (4 kV/2 Ω) surge events when mounted on recommended 8 mm × 8 mm copper pads |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes voltage overshoot during clamping; critical for protecting 12 V rail logic and automotive microcontrollers |
| Halogen-free & RoHS-compliant (M3) | Meets environmental compliance mandates for automotive and industrial OEMs without compromising surge performance |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and reflow compatibility up to 260 °C peak without baking preconditioning |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting LIN bus transceivers and body control module inputs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Bidirectional TVS placed across power rail and ground to clamp ±100 V spikes within 1 ns. Use Value: Prevents latch-up or permanent damage to 12 V tolerant ICs while maintaining <1.0 µA leakage at nominal battery voltage. | Use Scenario: Shielding analog outputs of pressure/temperature sensors connected to PLC analog input cards. IC Role / Device Role / Timing Role: Parallel-connected TVS on 4–20 mA loop or 0–10 V output line to suppress ESD and field wiring surges. Use Value: Limits transient voltage to ≤21.5 V, preserving ADC reference integrity and preventing op-amp saturation or rail collapse. |
| Telecom Data Line Surge Protection | Consumer USB Port ESD Protection |
Use Scenario: Safeguarding Ethernet PHY magnetics and PoE injectors against lightning-induced common-mode surges on twisted-pair cables. IC Role / Device Role / Timing Role: Bidirectional TVS applied across differential pairs (e.g., TX+/TX−) to clamp mode-converted transients. Use Value: Maintains signal integrity with <10 pF junction capacitance at zero bias, avoiding data rate degradation in 100BASE-TX links. | Use Scenario: Adding secondary-level surge immunity to USB 2.0 upstream ports in smart home hubs exposed to user-handling ESD. IC Role / Device Role / Timing Role: Low-leakage TVS placed between D+/D− and ground to shunt ±8 kV HBM ESD pulses per IEC 61000-4-2. Use Value: Delivers 1500 W surge capacity beyond basic ESD diodes, covering both contact and indirect lightning coupling events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC13CA | Same VWM (13 V) and PPPM (1500 W), but in smaller SMA (DO-214AC) package; lower thermal mass and higher RθJA (100 °C/W) | Less effective for sustained surge duty cycles; suitable only where board space is constrained and peak power is infrequent | Select SAC13CA only if footprint reduction outweighs thermal derating needs; verify layout cooling for repeated surges. |
| SMCJ13A-M3/57T | Unidirectional version with identical VWM, PPPM, and package; includes cathode band marking and forward voltage drop (VF = 3.5 V @ 100 A) | Requires correct polarity installation; unsuitable for AC or floating signal lines without DC bias reference | Choose SMCJ13A-M3/57T only for DC-biased rails where polarity is fixed and forward conduction may be leveraged. |
Compared with SAC13CA and SMCJ13A-M3/57T, the SMCJ13CA-M3/57T uniquely provides bidirectional clamping in the thermally robust SMC package-enabling reliable protection of floating, differential, or AC-coupled circuits without polarity constraints or thermal compromise.
Availability
SMCJ13CA-M3/57T is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, telecom data line protection, and consumer USB port hardening requiring stable component supply and halogen-free compliance.
Supply support for SMCJ13CA-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 engineered for high-energy transient suppression in harsh environments, targeting design-in for automotive power distribution, industrial automation I/O modules, and infrastructure equipment requiring AEC-Q101 readiness and long-term supply stability.
FAQ
What does the "CA" suffix indicate in SMCJ13CA-M3/57T?
The "CA" suffix denotes a bidirectional Transient Voltage Suppressor configuration. Unlike unidirectional variants (e.g., SMCJ13A), the SMCJ13CA-M3/57T clamps voltage surges equally in both polarities-making it ideal for protecting AC-coupled lines, differential buses like RS-485, or floating sensor outputs where polarity is undefined. This symmetry eliminates orientation dependency during PCB assembly.
Is SMCJ13CA-M3/57T qualified to AEC-Q101?
The SMCJ13CA-M3/57T itself is not AEC-Q101 qualified; however, Vishay offers the HM3-suffixed variant (e.g., SMCJ13CAHM3_X) which carries full AEC-Q101 qualification. The M3 suffix confirms halogen-free and RoHS compliance but does not imply automotive qualification-designers requiring AEC-Q101 must specify the HM3 version and confirm revision code (e.g., A, B) per ordering information.
What is the maximum clamping voltage of SMCJ13CA-M3/57T and under what test condition?
The maximum clamping voltage (VC) of SMCJ13CA-M3/57T is 21.5 V, measured at a peak pulse current (IPPM) of 69.8 A using the standardized 10/1000 µs double-exponential surge waveform. This value is guaranteed across the full operating temperature range and defines the highest voltage the protected circuit will experience during a worst-case transient event.
How does the SMC (DO-214AB) package of SMCJ13CA-M3/57T affect thermal performance?
The SMC (DO-214AB) package delivers superior thermal performance versus smaller packages like SMA: with a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W on 8.0 mm × 8.0 mm copper pads, the SMCJ13CA-M3/57T sustains repeated 1500 W surges more reliably. This enables longer surge duty cycles and higher ambient temperature operation compared to alternatives with higher RθJA values.
Can SMCJ13CA-M3/57T replace SMCJ13A-M3/57T in an existing design?
No-SMCJ13CA-M3/57T cannot directly replace SMCJ13A-M3/57T without layout review. While both share identical electrical ratings and package, the unidirectional SMCJ13A-M3/57T requires correct cathode orientation and conducts forward current, whereas the bidirectional SMCJ13CA-M3/57T has no polarity marking and blocks in both directions until breakdown. Swapping requires verifying that the circuit does not rely on forward conduction or DC bias reference.
SMCJ13CA-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):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 21.5V
- Current - Peak Pulse (10/1000µs):
- 69.8A
- 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)
SMCJ13CA-M3/57T FAQ
1.How can I place an order for SMCJ13CA-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ13CA-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 SMCJ13CA-M3/57T reliable?
The price and inventory of SMCJ13CA-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 SMCJ13CA-M3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ13CA-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ13CA-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ13CA-M3/57T?
SMCJ13CA-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ13CA-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 SMCJ13CA-M3/57T?
For technical support, including SMCJ13CA-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ13CA-M3/57T requirements.
6.How does Aetrix verify that SMCJ13CA-M3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ13CA-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 SMCJ13CA-M3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ13CA-M3/57T?
All SMCJ13CA-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ13CA-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 SMCJ13CA-M3/57T part is unused and in its original packaging.
Return procedure for SMCJ13CA-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ13CA-M3/57T Tags
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