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Vishay General Semiconductor - Diodes Division SMCJ54-E3/57T
- Part No.:
- SMCJ54-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ54-E3/57T.pdf
- Description:
- TVS DIODE 54VWM 96.3VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,601
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Product details
Overview
SMCJ54-E3/57T 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 IPPM - ideal for protecting automotive power rails and industrial I/O interfaces.
For engineers reviewing the SMCJ54-E3/57T datasheet, SMCJ54-E3/57T pinout, SMCJ54-E3/57T application, or SMCJ54-E3/57T equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 150 °C max junction temperature, RoHS-compliant matte tin plating, and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
The SMCJ54-E3/57T operates as a silicon avalanche diode that enters breakdown when reverse voltage exceeds its VBR (60.0–66.3 V), diverting surge current away from protected circuitry. Its low incremental surge resistance and <1 ns response time ensure effective suppression of 10/1000 µs transients up to 1500 W.
Thermally, it exhibits RθJA = 75 °C/W and RθJL = 15 °C/W, enabling reliable operation under repetitive surges when mounted per recommended pad layout. The device is rated for -55 °C to +150 °C junction temperature and 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 begins |
| VBR min/max | 60.0 V / 66.3 V at 1.0 mA - precise breakdown threshold ensures predictable turn-on |
| VC @ IPPM | ≤87.1 V at 17.2 A - clamping voltage limits stress on downstream components |
| PPPM | 1500 W - handles high-energy transients such as ISO 7637-2 Pulse 1/2a/5a in automotive systems |
| ID @ VWM | ≤1.0 µA - ultra-low leakage preserves signal integrity in high-impedance circuits |
| TJ max | +150 °C - supports under-hood automotive and industrial environments |
| Package | DO-214AB (SMCJ) - industry-standard surface-mount outline with cathode band marking |
Pinout & Package
DO-214AB (SMCJ) package: molded plastic case with gull-wing leads, cathode indicated by a band on one end; terminals are matte tin plated per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path | Connected to lower-potential side (e.g., ground or return) in unidirectional configuration |
| Cathode (banded end) | Reverse-biased clamping node | Connected to protected line (e.g., 12 V rail); conducts during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics |
| Glass passivated junction | Enhances long-term reliability and stability under thermal cycling and humidity stress |
| MSL Level 1 rating | Enables standard SMT reflow without moisture sensitivity concerns (peak 260 °C) |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients like ESD or load dump |
| RoHS-compliant E3 suffix | Meets JEDEC JESD201 Class 1A whisker resistance for high-reliability solder joints |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V supply lines in vehicle ECUs against ISO 7637-2 load dump and inductive switching spikes. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp transients before they reach DC-DC converters or microcontrollers. Use Value: Withstands 1500 W surges and clamps to ≤87.1 V, preventing latch-up or damage to 3.3 V/5 V logic powered from the same rail. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) in factory automation equipment from EFT and surge coupling. IC Role / Device Role / Timing Role: TVS placed across differential or single-ended signal lines to shunt fast transients while preserving signal fidelity. Use Value: Ultra-low 1.0 µA leakage at 54 V ensures minimal loading on high-impedance sensor bridges or amplifier inputs. |
| Telecom Line Card Surge Suppression | Consumer Power Adapter Input Protection |
Use Scenario: Safeguarding Ethernet PHY interfaces and PoE injectors from lightning-induced surges on twisted-pair cables. IC Role / Device Role / Timing Role: Bidirectional-capable family member used in unidirectional mode on DC bias lines feeding active components. Use Value: 87.1 V clamping voltage aligns with 100 V-rated capacitors and MOSFETs commonly used in telecom front-end stages. | Use Scenario: Adding secondary-level overvoltage protection on AC-DC adapter DC output rails before USB-PD or charging ICs. IC Role / Device Role / Timing Role: Standoff-rated TVS placed after primary regulation to absorb residual transients escaping upstream filtering. Use Value: 54 V VWM matches nominal 48–57 V outputs of multi-port adapters, ensuring no false triggering during normal operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ54A-E3/61 | Lower PPPM (400 W), smaller SMA package (DO-214AC), higher VBR tolerance (60.0–72.2 V) | Not AEC-Q101 qualified; limited to consumer/industrial use where space is constrained | Select when board area is critical and surge energy requirements are ≤400 W |
| SMCJ54AHE3/57T | Identical electrical specs but AEC-Q101 qualified version with HE3 suffix (JESD201 Class 2 whisker test) | Same footprint and performance; intended for automotive safety-critical modules requiring enhanced process validation | Select for ASIL-B/C systems where extended whisker resistance and full automotive qualification are mandated |
Compared with SMCJ54-E3/57T, SMAJ54A-E3/61 offers reduced surge handling in a smaller package, while SMCJ54AHE3/57T delivers identical protection with enhanced automotive process assurance - making the original SMCJ54-E3/57T optimal for cost-sensitive AEC-Q101-compliant designs needing full 1500 W capability.
Availability
SMCJ54-E3/57T is available at Aetrix Electronics and suitable for automotive electronics, industrial I/O protection, and telecom infrastructure requiring stable component supply and traceable sourcing.
Supply support for SMCJ54-E3/57T 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, and protection devices with emphasis on reliability and automotive-grade validation.
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 applications.
FAQ
What is the standoff voltage rating of the SMCJ54-E3/57T?
The SMCJ54-E3/57T has a maximum reverse standoff voltage (VWM) of 54 V, meaning it remains non-conductive under normal operating conditions up to this DC or RMS voltage level. This value is confirmed in the Vishay datasheet Document Number 88394, Table "ELECTRICAL CHARACTERISTICS", row for SMCJ54A.
Is the SMCJ54-E3/57T AEC-Q101 qualified?
No - the SMCJ54-E3/57T carries the commercial-grade E3 suffix and is RoHS compliant but not AEC-Q101 qualified. For automotive-qualified equivalents, refer to the SMCJ54AHE3/57T variant, which uses the HE3 suffix and is explicitly listed as AEC-Q101 qualified in the same datasheet.
What is the clamping voltage of the SMCJ54-E3/57T at its rated peak pulse current?
The SMCJ54-E3/57T clamps to a maximum of 87.1 V at its specified peak pulse current (IPPM) of 17.2 A, measured under the standard 10/1000 µs waveform. This value is documented in the "ELECTRICAL CHARACTERISTICS" table for SMCJ54A in Vishay document 88394.
What package type does the SMCJ54-E3/57T use, and what are its mounting requirements?
The SMCJ54-E3/57T uses the DO-214AB (SMCJ) surface-mount package with gull-wing leads. Per Vishay's thermal data, it must be mounted on minimum 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal to achieve rated 1500 W PPPM and proper thermal dissipation.
Does the SMCJ54-E3/57T have bidirectional capability?
No - the SMCJ54-E3/57T is a unidirectional TVS diode, indicated by the absence of the "CA" suffix. Bidirectional variants (e.g., SMCJ54CA) are available in the same family but differ in polarity and testing; the SMCJ54-E3/57T conducts only in forward bias and clamps in reverse.
SMCJ54-E3/57T 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:
- 1
- Bidirectional Channels:
- -
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SMCJ54-E3/57T FAQ
1.How can I place an order for SMCJ54-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ54-E3/57T 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 SMCJ54-E3/57T reliable?
The price and inventory of SMCJ54-E3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ54-E3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ54-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ54-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ54-E3/57T?
SMCJ54-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ54-E3/57T 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 SMCJ54-E3/57T?
For technical support, including SMCJ54-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ54-E3/57T requirements.
6.How does Aetrix verify that SMCJ54-E3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ54-E3/57T 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 SMCJ54-E3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ54-E3/57T?
All SMCJ54-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ54-E3/57T, 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 SMCJ54-E3/57T part is unused and in its original packaging.
Return procedure for SMCJ54-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ54-E3/57T Tags
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