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Vishay General Semiconductor - Diodes Division SMCJ54CAHE3/57T
- Part No.:
- SMCJ54CAHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ54CAHE3/57T.pdf
- Description:
- TVS DIODE 54VWM 87.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,536
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Product details
Overview
SMCJ54CAHE3/57T from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping voltage transients up to 1500 W peak pulse power with 87.1 V maximum clamping voltage at 17.2 A peak pulse current and 54 V standoff voltage. It operates across -55 °C to +150 °C and is AEC-Q101 qualified for automotive-grade reliability.
For engineers reviewing the SMCJ54CAHE3/57T datasheet, SMCJ54CAHE3/57T pinout, SMCJ54CAHE3/57T application, or SMCJ54CAHE3/57T equivalent, key selection criteria include bidirectional clamping capability, 1500 W surge rating, 54 V working voltage, low thermal resistance (RθJL = 15 °C/W), and AEC-Q101 qualification for automotive electronics protection.
Technical Context
This TVS diode uses a glass-passivated silicon junction to achieve sub-nanosecond response time and low incremental surge resistance. Its bidirectional architecture enables symmetrical clamping in both polarities without polarity marking, making it suitable for AC-coupled or floating signal lines.
The device is rated for 1500 W peak pulse power under 10/1000 µs waveform, with breakdown voltage range of 60.0–66.3 V at 1 mA test current and maximum reverse leakage of 1.0 µA at 54 V standoff. Thermal design leverages RθJA = 75 °C/W (on standard pad layout) and RθJL = 15 °C/W for efficient lead-based heat dissipation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VWM) | 54 V - Maximum continuous reverse operating voltage before clamping begins |
| Breakdown Voltage (VBR) | 60.0–66.3 V at 1 mA - Confirmed voltage threshold where device enters avalanche conduction |
| Clamping Voltage (VC) | 87.1 V at 17.2 A - Maximum voltage seen by protected circuit during 10/1000 µs surge |
| Peak Pulse Power (PPPM) | 1500 W - Surge energy handling capacity under standardized transient waveform |
| Operating Temperature | -55 °C to +150 °C - Full specification compliance across industrial and automotive ambient ranges |
| Qualification | AEC-Q101 qualified - Validated for automotive electronic systems per stress test requirements |
| Package | SMC (DO-214AB) - Surface-mount outline with 8.0 mm × 8.0 mm copper pad thermal interface |
Pinout & Package
SMCJ54CAHE3/57T is housed in an SMC (DO-214AB) package with two terminals: anode and cathode. As a bidirectional device, it has no polarity marking and functions identically in either orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry point (positive half-cycle) | Conducts surge current into junction during positive overvoltage events |
| Cathode | Transient current entry point (negative half-cycle) | Conducts surge current into junction during negative overvoltage events; identical electrical role as anode in bidirectional configuration |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC or floating lines without polarity constraints or external circuitry |
| AEC-Q101 qualification | Validates reliability for automotive powertrain, body control, and ADAS modules requiring long-term field stability |
| 1500 W peak pulse rating | Supports robust suppression of ISO 7637-2 pulse 1, 2a, 3a/b, and IEC 61000-4-5 surges in 12 V/24 V systems |
| Glass-passivated junction | Ensures stable VBR tolerance and low leakage (<1.0 µA) over temperature and lifetime |
| MSL Level 1 (260 °C) | Permits standard reflow soldering without moisture sensitivity concerns or baking requirements |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting LIN bus, CAN FD power rails, and lighting control outputs against load dump and inductive switching transients in 12 V vehicle systems. IC Role / Device Role / Timing Role: Primary transient shunt element placed directly across supply rail upstream of DC-DC converters and microcontrollers. Use Value: Limits voltage excursions to ≤87.1 V during 1500 W surges, preventing latch-up or gate oxide damage in downstream AEC-Q100 ICs. | Use Scenario: Safeguarding analog front-ends of pressure, temperature, and position sensors connected to PLC I/O modules in factory automation. IC Role / Device Role / Timing Role: Bidirectional clamp on differential sensor lines exposed to ESD and fast transients from nearby motor drives. Use Value: Maintains signal integrity below 54 V standoff while clamping ±87.1 V surges-preserving 16-bit ADC accuracy and eliminating false triggers. |
| Telecom DC Power Input | Consumer USB-C Port Protection |
Use Scenario: Securing 48 V PoE-powered equipment inputs against lightning-induced surges and hot-swap transients in telecom base stations. IC Role / Device Role / Timing Role: First-line overvoltage suppressor on primary DC input before secondary regulation and isolation stages. Use Value: Absorbs 10/1000 µs surges up to 1500 W without degradation, enabling single-stage protection architecture and reducing BOM count. | Use Scenario: Hardening USB-C receptacles in portable speakers and docking stations against ESD (±15 kV contact) and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed between VBUS and ground, compliant with USB-IF ESD requirements. Use Value: Clamps transients within 1 ns while maintaining <1.0 µA leakage at 54 V-preventing standby current drain and ensuring USB PD negotiation integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC54CA | Lower peak pulse power (500 W), same VWM (54 V), smaller SMA package | Not AEC-Q101 qualified; limited to consumer/industrial non-automotive use | Select when space-constrained layouts prioritize footprint over surge margin |
| SMCJ54CAHM3/57T | Identical electrical specs; halogen-free construction (HM3 suffix) vs. RoHS-compliant HE3 | No functional difference; required only where halogen-free compliance is mandated by OEM spec | Choose HM3 version if material declaration requires bromine/chlorine restriction beyond RoHS |
Compared with SAC54CA and SMCJ54CAHM3/57T, the SMCJ54CAHE3/57T uniquely combines AEC-Q101 qualification, 1500 W surge rating, and DO-214AB thermal performance-making it the preferred choice for automotive power rail protection where reliability and energy absorption are critical.
Availability
SMCJ54CAHE3/57T is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, telecom power inputs, and consumer USB-C port protection requiring stable component supply and long-term lifecycle support.
Supply support for SMCJ54CAHE3/57T 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, MOSFETs, optoelectronics, and passive components with emphasis on high-reliability and automotive-grade solutions.
The SMCJ series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments including automotive, industrial, and telecom infrastructure.
FAQ
What is the clamping voltage of SMCJ54CAHE3/57T at its rated peak pulse current?
The SMCJ54CAHE3/57T has a maximum clamping voltage (VC) of 87.1 V at 17.2 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured and guaranteed per Vishay Document Number 88394, ensuring predictable voltage limiting during surge events. The SMCJ54CAHE3/57T maintains this clamping performance across its full operating temperature range.
Is SMCJ54CAHE3/57T suitable for automotive applications?
Yes, the SMCJ54CAHE3/57T is AEC-Q101 qualified, confirming its suitability for automotive applications including powertrain, body electronics, and ADAS subsystems. Its construction includes glass-passivated junctions, MSL Level 1 moisture sensitivity rating, and operation from -55 °C to +150 °C. The SMCJ54CAHE3/57T meets stringent automotive reliability and thermal cycling requirements.
How does the bidirectional nature of SMCJ54CAHE3/57T affect PCB layout?
The SMCJ54CAHE3/57T has no polarity marking and functions identically in either orientation, simplifying PCB layout by eliminating cathode/anode alignment checks. It can be placed across any bidirectional line-such as LIN, RS-485, or AC-coupled audio-without orientation dependency. The SMCJ54CAHE3/57T's symmetric VBR ensures matched clamping in both directions, reducing design validation effort.
What is the thermal resistance from junction to lead (RθJL) for SMCJ54CAHE3/57T?
The SMCJ54CAHE3/57T has a typical junction-to-lead thermal resistance (RθJL) of 15 °C/W, enabling efficient heat transfer through its leads to the PCB copper. This value is specified in Vishay Document Number 88394 and supports reliable operation under repetitive surge conditions when mounted on recommended 8.0 mm × 8.0 mm copper pads. The SMCJ54CAHE3/57T's low RθJL contributes to its 1500 W pulse rating.
Does SMCJ54CAHE3/57T meet UL recognition standards?
Yes, the SMCJ54CAHE3/57T carries Underwriters Laboratories recognition under UL 497B (QVGQ2) and file number E136766 for both unidirectional and bidirectional configurations. This certification confirms compliance with safety standards for transient protectors used in telecommunications and industrial equipment. The SMCJ54CAHE3/57T's UL listing applies to its entire qualified family, including the HE3 suffix variant.
SMCJ54CAHE3/57T 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):
- 54V
- Voltage - Breakdown (Min):
- 60V
- Voltage - Clamping (Max) @ Ipp:
- 87.1V
- Current - Peak Pulse (10/1000µs):
- 17.2A
- 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)
SMCJ54CAHE3/57T FAQ
1.How can I place an order for SMCJ54CAHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ54CAHE3/57T 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 SMCJ54CAHE3/57T reliable?
The price and inventory of SMCJ54CAHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ54CAHE3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ54CAHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ54CAHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ54CAHE3/57T?
SMCJ54CAHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ54CAHE3/57T 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 SMCJ54CAHE3/57T?
For technical support, including SMCJ54CAHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ54CAHE3/57T requirements.
6.How does Aetrix verify that SMCJ54CAHE3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ54CAHE3/57T 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 SMCJ54CAHE3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ54CAHE3/57T?
All SMCJ54CAHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ54CAHE3/57T, 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 SMCJ54CAHE3/57T part is unused and in its original packaging.
Return procedure for SMCJ54CAHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ54CAHE3/57T Tags
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