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Vishay General Semiconductor - Diodes Division SMCJ54CHE3/57T
- Part No.:
- SMCJ54CHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ54CHE3/57T.pdf
- Description:
- TVS DIODE 54VWM 96.3VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,674
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Product details
Overview
SMCJ54CHE3/57T from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-214AB (SMCJ) package, designed for robust overvoltage protection of sensitive electronics. It features a 54 V standoff voltage (VWM), 60.0–66.3 V breakdown range (VBR), 1500 W peak pulse power (PPPM), and clamps transients to ≤87.1 V at 17.2 A, commonly used in automotive power line and industrial DC bus protection.
For engineers reviewing the SMCJ54CHE3/57T datasheet, SMCJ54CHE3/57T pinout, SMCJ54CHE3/57T application, or SMCJ54CHE3/57T equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 1500 W surge capability with 10/1000 µs waveform, low clamping ratio (VC/VBR ≈ 1.39), and RoHS-compliant HE3-grade matte tin plating meeting JESD 201 Class 2 whisker resistance.
Technical Context
The SMCJ54CHE3/57T operates as a silicon avalanche diode, leveraging glass-passivated junction technology for stable breakdown and fast response (<1 ns). Its unidirectional configuration provides reverse-biased clamping only, with forward conduction limited to 3.5 V at 100 A - critical for protecting downstream MOSFET gates or IC inputs during positive-going surges.
Thermally, it sustains 150 °C maximum junction temperature with RθJA = 75 °C/W and RθJL = 15 °C/W, requiring minimum 8.0 mm × 8.0 mm copper pads per terminal for full 1500 W rating. Derating begins above TA = 25 °C per Fig. 2, and it meets MSL Level 1 per J-STD-020 at 260 °C peak reflow.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 54 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 60.0 V / 66.3 V at 1 mA - Confirmed avalanche onset range under standardized test current |
| VC @ IPPM | ≤87.1 V at 17.2 A - Clamped voltage during 10/1000 µs surge, defining worst-case stress on protected circuit |
| PPPM | 1500 W - Peak transient power handling capacity with standard 10/1000 µs waveform |
| ID @ VWM | ≤1.0 µA - Reverse leakage at rated standoff, ensuring minimal quiescent power loss |
| TJ max | +150 °C - Maximum allowable junction temperature for reliable long-term operation |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
Package: DO-214AB (SMCJ), surface-mount, low-profile case with molded compound meeting UL 94 V-0. Cathode indicated by band on one end; leads are matte tin plated, solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path | Connects to lower-potential side (e.g., ground or return) in unidirectional TVS configuration |
| Cathode (banded end) | Reverse-biased clamping node | Connects to protected line (e.g., 54 V rail); avalanche conduction occurs when line exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable, repeatable breakdown voltage and long-term reliability under repeated surge stress |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body electronics, and ADAS modules requiring high-reliability TVS protection |
| Low incremental surge resistance | Minimizes voltage overshoot during fast transients, improving clamping precision and system immunity |
| MSL Level 1 rating | Enables standard SMT reflow without moisture-related popcorn failure; no bake required prior to assembly |
| RoHS-compliant HE3 grade | Meets JESD 201 Class 2 whisker resistance, eliminating tin whisker risk in high-reliability industrial and automotive PCBs |
Applications
| Automotive Power Line Protection | Industrial DC Bus Surge Suppression |
|---|---|
Use Scenario: Protecting engine control unit (ECU) 54 V supply rail against load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 54 V input and chassis ground to clamp negative-going spikes and absorb 1500 W surge energy. Use Value: Prevents damage to downstream PMICs and microcontrollers by limiting transient voltage to ≤87.1 V while maintaining <1.0 µA leakage at nominal 54 V. | Use Scenario: Safeguarding programmable logic controller (PLC) I/O module power rails exposed to inductive switching noise in factory automation. IC Role / Device Role / Timing Role: Standoff-rated TVS mounted directly at connector entry point to shunt fast-rising transients before reaching isolation barriers or signal conditioning circuits. Use Value: Delivers 1500 W peak pulse handling with 60–66.3 V breakdown tolerance, enabling robust operation in harsh electromagnetic environments per IEC 61000-4-4/5. |
| Telecom DC Feeder Protection | Renewable Energy Charge Controller Input |
Use Scenario: Securing remote radio head (RRH) power input against lightning-induced surges on outdoor telecom feeder lines. IC Role / Device Role / Timing Role: Primary clamping device in series with upstream fuse and parallel to bulk capacitance, activated within nanoseconds of overvoltage event. Use Value: Fast response time and low clamping ratio (VC/VBR ≈ 1.39) minimize voltage overshoot, preserving integrity of GaN FET drivers and analog front-end components. | Use Scenario: Protecting solar charge controller input stage from voltage reversals and surge events caused by PV array arcing or grid coupling transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed across MPPT converter input terminals to clamp reverse polarity faults and lightning-induced surges up to 1500 W. Use Value: AEC-Q101 qualification ensures thermal stability across -40 °C to +125 °C ambient, supporting deployment in uncooled outdoor enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ54AHE3/52T | Lower PPPM (600 W), smaller SMB package (DO-214AA), same VWM/VBR range | Reduced surge margin; suitable for space-constrained consumer or non-automotive industrial designs | Select when board area is critical and 600 W surge rating suffices; not AEC-Q101 qualified |
| SMCJ54A-E3/57T | Same electrical specs and DO-214AB package, but commercial-grade (E3) vs. automotive-grade (HE3) | Lacks AEC-Q101 qualification and JESD 201 Class 2 whisker resistance | Acceptable for non-automotive applications where cost sensitivity outweighs automotive reliability requirements |
Compared with SMCJ54CHE3/57T, SMBJ54AHE3/52T trades surge capacity and qualification for compactness, while SMCJ54A-E3/57T retains identical clamping performance but omits automotive-grade process controls and testing - making SMCJ54CHE3/57T the sole choice for AEC-Q101-compliant 54 V rail protection.
Availability
SMCJ54CHE3/57T is available at Aetrix Electronics and suitable for automotive power line protection, industrial DC bus surge suppression, and telecom DC feeder protection requiring stable component supply, traceable sourcing, and lifecycle continuity.
Supply support for SMCJ54CHE3/57T 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 optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The SMCJ series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in automotive, industrial, and telecom infrastructure where AEC-Q101 compliance and 1500 W surge capability are mandatory.
FAQ
What is the clamping voltage of SMCJ54CHE3/57T at its rated peak pulse current?
The SMCJ54CHE3/57T has a maximum clamping voltage (VC) of 87.1 V at its peak pulse current (IPPM) of 17.2 A, measured under the standard 10/1000 µs waveform. This value defines the upper voltage limit imposed on the protected circuit during a full-rated surge event and is confirmed in the Electrical Characteristics table on page 2 of Vishay document 88394. The SMCJ54CHE3/57T maintains this clamping performance across its qualified operating temperature range.
Is SMCJ54CHE3/57T suitable for automotive applications?
Yes, SMCJ54CHE3/57T is AEC-Q101 qualified and explicitly rated for automotive use, including engine control units, body electronics, and ADAS power supplies. Its HE3 suffix denotes automotive-grade construction with JESD 201 Class 2 whisker resistance, MSL Level 1 reflow compatibility, and validation across temperature cycling, high-temperature reverse bias, and surge endurance tests. The SMCJ54CHE3/57T meets these requirements without derating in standard automotive ambient conditions.
What does the 'HE3' suffix indicate in SMCJ54CHE3/57T?
The 'HE3' suffix in SMCJ54CHE3/57T specifies RoHS-compliant, AEC-Q101-qualified construction with matte tin-plated leads meeting JESD 201 Class 2 whisker resistance. It distinguishes the part from commercial-grade 'E3' variants and confirms compliance with automotive reliability standards, including enhanced thermal cycling and humidity robustness. The SMCJ54CHE3/57T HE3 designation is documented in Vishay's ordering information table on page 3 of document 88394.
How does the SMCJ54CHE3/57T differ from bi-directional SMCJ54CA variants?
The SMCJ54CHE3/57T is unidirectional, providing clamping only in reverse bias (cathode-to-anode), whereas SMCJ54CA is bi-directional and clamps in both polarities. This makes the SMCJ54CHE3/57T appropriate for DC lines with defined polarity (e.g., 54 V supply to ground), while SMCJ54CA suits AC-coupled or floating signal lines. The SMCJ54CHE3/57T also features a cathode band marking, absent on bi-directional types per Vishay's mechanical data.
What is the thermal resistance specification for SMCJ54CHE3/57T?
The SMCJ54CHE3/57T has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and junction-to-lead resistance (RθJL) of 15 °C/W, measured under standard conditions (TA = 25 °C, 0.31" × 0.31" copper pads per terminal). These values govern power derating above 25 °C ambient and inform heatsinking decisions. The SMCJ54CHE3/57T thermal characteristics are published in the Thermal Characteristics table on page 3 of Vishay document 88394.
SMCJ54CHE3/57T 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):
- 54V
- Voltage - Breakdown (Min):
- 60V
- Voltage - Clamping (Max) @ Ipp:
- 96.3V
- Current - Peak Pulse (10/1000µs):
- 15.6A
- 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)
SMCJ54CHE3/57T FAQ
1.How can I place an order for SMCJ54CHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ54CHE3/57T 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 SMCJ54CHE3/57T reliable?
The price and inventory of SMCJ54CHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ54CHE3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ54CHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ54CHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ54CHE3/57T?
SMCJ54CHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ54CHE3/57T 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 SMCJ54CHE3/57T?
For technical support, including SMCJ54CHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ54CHE3/57T requirements.
6.How does Aetrix verify that SMCJ54CHE3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ54CHE3/57T 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 SMCJ54CHE3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ54CHE3/57T?
All SMCJ54CHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ54CHE3/57T, 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 SMCJ54CHE3/57T part is unused and in its original packaging.
Return procedure for SMCJ54CHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ54CHE3/57T Tags
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