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Vishay General Semiconductor - Diodes Division SMCJ5.0CAHE3/57T
- Part No.:
- SMCJ5.0CAHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ5.0CAHE3/57T.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,378
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Product details
Overview
SMCJ5.0CAHE3/57T 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 automotive sensor interface protection and industrial I/O line safeguarding.
For engineers reviewing the SMCJ5.0CAHE3/57T datasheet, SMCJ5.0CAHE3/57T pinout, SMCJ5.0CAHE3/57T application, or SMCJ5.0CAHE3/57T equivalent, key selection criteria include its bidirectional polarity, AEC-Q101 qualification, SMC (DO-214AB) package compatibility, and verified clamping performance under ISO 7637-2 and IEC 61000-4-5 surge conditions.
Technical Context
This device operates as a voltage-clamping protector with symmetrical breakdown behavior in both directions due to its bidirectional construction. Its glass-passivated junction ensures stable avalanche characteristics and low incremental surge resistance, enabling consistent clamping across repeated transients.
The SMCJ5.0CAHE3/57T is rated for -55 °C to +150 °C operating junction temperature and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. Its thermal resistance (RθJA = 75 °C/W) supports surface-mount reliability on standard 8.0 mm × 8.0 mm copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - Maximum continuous reverse working voltage before clamping initiates |
| VBR min/max | 6.40 V / 7.25 V - Breakdown occurs within this range at 10 mA test current, ensuring predictable turn-on |
| VC @ IPPM | ≤9.2 V - Clamped voltage at 163 A peak pulse current, defining worst-case overvoltage seen by protected circuit |
| PPPM | 1500 W - Peak pulse power handling capability with 10/1000 μs waveform, supporting high-energy surge immunity |
| ID @ VWM | 1000 μA - Reverse leakage at stand-off voltage, low enough to avoid interference in high-impedance circuits |
| TJ max | +150 °C - Maximum junction temperature rating, enabling use in under-hood automotive environments |
| Package | SMC (DO-214AB) - Industry-standard surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height |
Pinout & Package
SMCJ5.0CAHE3/57T uses the SMC (DO-214AB) package: a two-terminal, non-polarized surface-mount case with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. Bidirectional variants have no polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals function identically; conducts surge current in either direction when V > VBR |
| Case (body) | Thermal and mechanical interface | Non-electrical; provides mechanical anchoring and aids heat dissipation via PCB copper pads |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| Low incremental surge resistance | Enables tighter clamping voltage margin and reduced stress on downstream ICs during fast transients |
| MSL Level 1 moisture sensitivity | Allows standard SMT reflow without dry-bag storage or baking prior to assembly |
| Glass passivated junction | Improves long-term stability of breakdown voltage and leakage current under thermal cycling |
| UL 94 V-0 molding compound | Meets flammability requirements for safety-critical industrial and automotive end equipment |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive switching spikes in 12 V vehicle systems. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed directly at connector entry point to shunt surge energy before reaching signal conditioning circuitry. Use Value: Limits transient voltage to ≤9.2 V, preventing latch-up or permanent damage to 5 V tolerant microcontrollers and ADC front-ends. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to relay coil flyback and ESD events in factory automation cabinets. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC input channels, coordinated with series impedance for IEC 61000-4-4/5 compliance. Use Value: Withstands 1500 W surges while maintaining <1000 μA leakage at 5.0 V, preserving signal integrity in high-density I/O backplanes. |
| Consumer Power Adapter Input | Telecom Line Interface |
Use Scenario: Secondary-side transient suppression on 5 V USB-C PD adapter outputs to meet UL 62368-1 surge immunity requirements. IC Role / Device Role / Timing Role: Fast-response clamping device placed after DC-DC converter output filter to absorb residual switching noise and external surges. Use Value: Responds in <1 ps to clamp 10/1000 μs transients, reducing risk of downstream MOSFET gate oxide failure in synchronous rectifiers. |
Use Scenario: Protection of Ethernet PHY power pins and auxiliary bias rails in PoE-powered network switches against lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional clamp on 3.3 V or 5 V auxiliary supplies shared across multiple PHY lanes. Use Value: Symmetrical clamping ensures equal protection regardless of surge polarity, critical for full-duplex data links with shared supply domains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC5.0B-TB-E3/57T | Lower PPPM (600 W), same VWM (5.0 V), higher VC (11.2 V at 53.5 A) | Better suited for space-constrained consumer ports where lower surge energy is expected | Select when board area is limited and peak surge exposure is below 600 W |
| SMCJ5.0AHE3/57T | Unidirectional version; same VWM, VBR, and PPPM but asymmetric conduction (cathode-marked) | Required only where DC bias polarity is fixed and reverse conduction must be blocked | Choose only if system design mandates unidirectional blocking-otherwise SMCJ5.0CAHE3/57T offers broader flexibility |
Compared with SAC5.0B-TB-E3/57T and SMCJ5.0AHE3/57T, the SMCJ5.0CAHE3/57T delivers superior surge handling (1500 W vs. 600 W) and tighter clamping (≤9.2 V vs. 11.2 V) in a bidirectional configuration ideal for AC-coupled or polarity-agnostic interfaces.
Availability
SMCJ5.0CAHE3/57T is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, consumer power adapter outputs, and telecom line interfaces requiring stable component supply and AEC-Q101-compliant surge protection.
Supply support for SMCJ5.0CAHE3/57T 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 with emphasis on reliability and automotive-grade qualification.
The SMCJ series was developed specifically for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom applications demanding AEC-Q101 validation and 1500 W surge capability.
FAQ
What is the clamping voltage of SMCJ5.0CAHE3/57T at its rated peak pulse current?
The SMCJ5.0CAHE3/57T clamps to a maximum of 9.2 V when subjected to its rated peak pulse current of 163 A under the standardized 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in the Vishay datasheet revision 09-Jan-2024, ensuring predictable overvoltage limiting for downstream 5 V logic.
Is SMCJ5.0CAHE3/57T qualified for automotive applications?
Yes, SMCJ5.0CAHE3/57T carries AEC-Q101 qualification, as indicated by the "HE3" suffix in its part number. It is rated for operation from -55 °C to +150 °C and validated for use in automotive subsystems including body control modules, infotainment power rails, and sensor signal conditioning circuits.
How does the bidirectional nature of SMCJ5.0CAHE3/57T affect its PCB layout?
The bidirectional design of SMCJ5.0CAHE3/57T eliminates polarity concerns during placement-no cathode band marking is present, and either terminal may connect to either side of the protected line. Layout requires symmetric 8.0 mm × 8.0 mm copper pads per terminal to maintain specified thermal and surge performance per Vishay's recommended mounting pad layout.
What is the maximum reverse leakage current for SMCJ5.0CAHE3/57T at its stand-off voltage?
At its 5.0 V stand-off voltage (VWM), the SMCJ5.0CAHE3/57T exhibits a maximum reverse leakage current (ID) of 1000 μA at 25 °C. This value remains stable across temperature due to its glass-passivated junction and supports reliable operation in high-impedance sensing circuits without introducing significant offset error.
Does SMCJ5.0CAHE3/57T meet industry flammability standards?
Yes, the SMCJ5.0CAHE3/57T uses a molding compound certified to UL 94 V-0 flammability rating, as stated in the Vishay datasheet. This ensures self-extinguishing behavior in fault conditions and compliance with safety standards required for industrial control panels and automotive ECUs.
SMCJ5.0CAHE3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SMCJ5.0CAHE3/57T FAQ
1.How can I place an order for SMCJ5.0CAHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ5.0CAHE3/57T 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 SMCJ5.0CAHE3/57T reliable?
The price and inventory of SMCJ5.0CAHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ5.0CAHE3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ5.0CAHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ5.0CAHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ5.0CAHE3/57T?
SMCJ5.0CAHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ5.0CAHE3/57T 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 SMCJ5.0CAHE3/57T?
For technical support, including SMCJ5.0CAHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ5.0CAHE3/57T requirements.
6.How does Aetrix verify that SMCJ5.0CAHE3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ5.0CAHE3/57T 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 SMCJ5.0CAHE3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ5.0CAHE3/57T?
All SMCJ5.0CAHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ5.0CAHE3/57T, 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 SMCJ5.0CAHE3/57T part is unused and in its original packaging.
Return procedure for SMCJ5.0CAHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ5.0CAHE3/57T Tags
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