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Vishay General Semiconductor - Diodes Division SMCJ6.0CA/57T
- Part No.:
- SMCJ6.0CA/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ6.0CA/57T.pdf
- Description:
- TVS DIODE 6VWM 10.3VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,910
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Product details
Overview
SMCJ6.0CA/57T from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AB (SMCJ) package, designed for robust overvoltage protection on signal and power lines. It features a 6.0 V stand-off voltage (VWM), 6.67–7.37 V breakdown voltage (VBR) at 10 mA, 1500 W peak pulse power (10/1000 µs), 10.3 V clamping voltage at 145.6 A IPPM, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SMCJ6.0CA/57T datasheet, SMCJ6.0CA/57T pinout, SMCJ6.0CA/57T application, or SMCJ6.0CA/57T equivalent, this device is selected for high-energy surge suppression in automotive sensor interfaces, industrial I/O ports, and DC power rail protection where bidirectional clamping, low clamping ratio, and MSL Level 1 solderability are required.
Technical Context
The SMCJ6.0CA/57T operates as a bi-directional avalanche diode with symmetrical clamping behavior in both polarities, enabling protection of AC-coupled or floating signal paths without polarity constraints. Its glass-passivated junction ensures stable VBR tolerance and low leakage (<1000 µA at VWM), while its low incremental surge resistance supports consistent clamping under repetitive transients.
Designed for surface-mount assembly on 8.0 mm × 8.0 mm copper pads, it delivers 1500 W peak pulse power handling with thermal resistance RθJA = 75 °C/W and RθJL = 15 °C/W, supporting operation from –55 °C to +150 °C junction temperature. The device meets UL 497B recognition and J-STD-020 MSL Level 1 (260 °C peak reflow).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.0 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working margin for 5 V systems. |
| VBR min/max | 6.67 V / 7.37 V at 10 mA - Tight breakdown window ensures predictable turn-on across production lots. |
| VC @ IPPM | 10.3 V at 145.6 A - Clamping voltage during 10/1000 µs surge; yields clamping ratio of ~1.72×VWM for effective overvoltage limiting. |
| PPPM | 1500 W - Peak pulse power rating per 10/1000 µs waveform; enables protection against IEC 61000-4-5 Level 4 surges. |
| TJ max | +150 °C - Maximum junction temperature; supports under-hood automotive environments and high-power industrial enclosures. |
| Qualification | AEC-Q101 qualified - Validated for automotive electronics use with stress testing including HTRB, HTGB, and TCT. |
Pinout & Package
Package: DO-214AB (SMCJ), surface-mount, bi-directional configuration with no polarity marking (no cathode band). Case meets UL 94 V-0 flammability rating; matte tin-plated leads comply with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional avalanche junction terminals | No functional distinction between terminals; either lead may connect to protected line or ground - enables flexible PCB layout for AC or floating nodes. |
| Case | Non-electrical mechanical body | DO-214AB molded compound provides mechanical robustness and thermal path to PCB copper; no electrical connection. |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Enables single-device protection of differential signals, AC lines, or ungrounded buses without polarity concerns. |
| 1500 W peak pulse power | Withstands IEC 61000-4-5 combination wave surges up to 4 kV open-circuit / 2 kA short-circuit without degradation. |
| AEC-Q101 qualification | Validated for automotive applications including engine control units, ADAS sensors, and infotainment power supplies. |
| MSL Level 1 rating | Allows standard SMT reflow without moisture sensitivity concerns - no baking required prior to assembly. |
| Glass-passivated junction | Ensures long-term stability of VBR and low leakage drift over temperature and lifetime. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN, LIN, or analog sensor inputs (e.g., pressure, temperature) in engine bay or chassis modules from load dump and ESD. IC Role / Device Role / Timing Role: Standoff-clamp TVS placed between signal line and chassis ground to shunt transients before reaching downstream ASIC or MCU input pins. Use Value: 10.3 V clamping ensures MCU GPIOs rated for 5.5 V absolute maximum remain within safe limits during 145.6 A surge events. | Use Scenario: Safeguarding 24 V DC digital input channels in programmable logic controllers exposed to relay coil flyback and field wiring surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on field-side input traces, upstream of optocoupler or Schmitt trigger input stage. Use Value: 1500 W rating handles repetitive 10/1000 µs transients from inductive switching without derating or thermal runaway. |
| Telecom Line Interface | Consumer Power Adapter Output |
Use Scenario: Protecting RS-485 transceiver bus lines in outdoor telecom equipment subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Bi-directional TVS connected across differential pair (A–B) to clamp common-mode and differential-mode transients simultaneously. Use Value: Symmetrical VBR and VC ensure balanced clamping on both lines, preserving signal integrity and preventing receiver latch-up. | Use Scenario: Secondary-side overvoltage suppression on 5 V USB-C PD adapter outputs to meet UL 62368-1 transient immunity requirements. IC Role / Device Role / Timing Role: Final-stage clamp between VBUS and GND, downstream of DC-DC converter and upstream of connector. Use Value: 6.0 V VWM aligns with 5 V ±10% nominal output; 10.3 V VC prevents downstream USB controller damage during 1.2/50 µs ringwave events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.0CA | Lower PPPM (400 W), smaller DO-214AC (SMA) package, higher RθJA (110 °C/W) | Suitable for lower-energy surges (IEC 61000-4-2 ESD only); not recommended for IEC 61000-4-5 Level 3+ | Select SMAJ6.0CA only when board space is constrained and surge energy is limited to <400 W. |
| SMCJ6.0A | Uni-directional version with cathode band marking; identical VWM/VBR/VC/PPPM but asymmetric conduction | Requires polarity-aware placement; unsuitable for AC or floating differential lines | Choose SMCJ6.0A only for DC rails with known polarity and ground-referenced topology. |
Compared with SMAJ6.0CA and SMCJ6.0A, the SMCJ6.0CA/57T uniquely combines bi-directional symmetry, 1500 W surge capacity, and AEC-Q101 qualification - making it the only option among the three qualified for automotive powertrain sensor interfaces requiring zero-polarity dependency and high-energy resilience.
Availability
SMCJ6.0CA/57T is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC I/O hardening, and telecom line interface applications requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMCJ6.0CA/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 automotive-grade validation.
The SMCJ series belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for high-power, surface-mount transient suppression in harsh environments including automotive, industrial automation, and telecommunications infrastructure.
FAQ
What is the clamping voltage of the SMCJ6.0CA/57T and how is it measured?
The SMCJ6.0CA/57T has a maximum clamping voltage (VC) of 10.3 V, measured at a peak pulse current (IPPM) of 145.6 A using a standardized 10/1000 µs double-exponential surge waveform. This value reflects the actual voltage seen across the device during worst-case transient events and is critical for ensuring downstream ICs remain within their absolute maximum ratings. The SMCJ6.0CA/57T maintains this clamping performance consistently due to its low incremental surge resistance and thermally optimized DO-214AB package.
Is the SMCJ6.0CA/57T suitable for automotive applications?
Yes, the SMCJ6.0CA/57T is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood and chassis-mounted modules. Its –55 °C to +150 °C operating junction temperature range, robust surge handling (1500 W), and UL 497B recognition make it appropriate for protecting ECUs, ADAS sensors, and body control units from load dump, ISO 7637-2 pulses, and ESD. The SMCJ6.0CA/57T meets all stress test requirements defined in AEC-Q101, including HTRB and TCT.
Does the SMCJ6.0CA/57T have polarity markings, and how should it be oriented on the PCB?
No, the SMCJ6.0CA/57T has no polarity markings because it is a bi-directional TVS diode - both terminals are functionally identical. There is no anode or cathode designation; either lead may be connected to the protected line or system ground. This eliminates orientation errors during automated placement and simplifies layout for differential or floating signal paths. The SMCJ6.0CA/57T must be mounted on minimum recommended 8.0 mm × 8.0 mm copper pads per terminal for optimal thermal and surge performance.
What is the standoff voltage (VWM) of the SMCJ6.0CA/57T and why does it matter?
The standoff voltage (VWM) of the SMCJ6.0CA/57T is 6.0 V - the maximum DC or continuous peak voltage the device will block without entering avalanche conduction. This parameter ensures reliable operation in 5 V systems with typical tolerances (e.g., 5 V ±10%), providing sufficient margin to avoid leakage or false triggering during normal operation. Selecting a VWM just above the system's maximum steady-state voltage, as with the SMCJ6.0CA/57T in 5 V applications, balances protection responsiveness and operational safety.
How does the SMCJ6.0CA/57T compare to uni-directional versions like SMCJ6.0A?
The SMCJ6.0CA/57T differs from the uni-directional SMCJ6.0A by offering symmetrical clamping in both directions, eliminating polarity constraints and enabling use on AC-coupled, differential, or floating nodes. While both share identical VWM (6.0 V), VBR (6.67–7.37 V), VC (10.3 V), and PPPM (1500 W), only the SMCJ6.0CA/57T supports bidirectional surge suppression without risk of reverse breakdown failure. The SMCJ6.0CA/57T also lacks the cathode band marking found on SMCJ6.0A, reflecting its non-polarized design.
SMCJ6.0CA/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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 6V
- Voltage - Breakdown (Min):
- 6.67V
- Voltage - Clamping (Max) @ Ipp:
- 10.3V
- Current - Peak Pulse (10/1000µs):
- 145.6A
- 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 (SMCJ)
SMCJ6.0CA/57T FAQ
1.How can I place an order for SMCJ6.0CA/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ6.0CA/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 SMCJ6.0CA/57T reliable?
The price and inventory of SMCJ6.0CA/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ6.0CA/57T is usually 5 days.
3.What payment methods are accepted for SMCJ6.0CA/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ6.0CA/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ6.0CA/57T?
SMCJ6.0CA/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ6.0CA/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 SMCJ6.0CA/57T?
For technical support, including SMCJ6.0CA/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ6.0CA/57T requirements.
6.How does Aetrix verify that SMCJ6.0CA/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ6.0CA/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 SMCJ6.0CA/57T meets industry standards.
7.What is the process for return or replacement of SMCJ6.0CA/57T?
All SMCJ6.0CA/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ6.0CA/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 SMCJ6.0CA/57T part is unused and in its original packaging.
Return procedure for SMCJ6.0CA/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ6.0CA/57T Tags
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