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Vishay General Semiconductor - Diodes Division SMCJ54C-E3/57T
- Part No.:
- SMCJ54C-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ54C-E3/57T.pdf
- Description:
- TVS DIODE 54VWM 96.3VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,321
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Product details
Overview
SMCJ54C-E3/57T from Vishay General Semiconductor is a bi-directional 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 - deployed on power rails and signal lines in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the SMCJ54C-E3/57T datasheet, SMCJ54C-E3/57T pinout, SMCJ54C-E3/57T application, or SMCJ54C-E3/57T equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), clamping behavior under 10/1000 µs surges, and direct alternatives with documented VWM/VBR/PPPM alignment.
Technical Context
The SMCJ54C-E3/57T operates as a bi-directional avalanche diode, symmetrically clamping voltage transients above ±60.0 V in either polarity without polarity marking. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance across temperature.
Rated for 1500 W peak pulse power (10/1000 µs waveform), it sustains 17.2 A peak surge current (IPPM) while limiting clamped voltage to 87.1 V - enabling protection of 54 V nominal systems against ISO 7637-2 pulse 1/2a/5a and IEC 61000-4-5 surges when mounted on 8.0 mm × 8.0 mm copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 54 V - maximum continuous reverse operating voltage before conduction begins; defines system rail compatibility |
| VBR min/max | 60.0 V / 66.3 V at 1.0 mA - guaranteed breakdown threshold range; ensures predictable turn-on margin above VWM |
| VC @ IPPM | 87.1 V at 17.2 A - clamped voltage during 10/1000 µs surge; determines protected circuit's maximum transient exposure |
| PPPM | 1500 W - peak pulse power handling capability; enables survival of high-energy transients per IEC 61000-4-5 Level 4 |
| TJ max | +150 °C - maximum junction temperature; supports operation in under-hood automotive environments |
| RθJA | 75 °C/W - thermal resistance junction-to-ambient; informs PCB copper pad sizing for sustained power dissipation |
Pinout & Package
Package: DO-214AB (SMCJ), surface-mount, bi-directional configuration with no polarity marking. Case meets UL 94 V-0; matte tin-plated leads comply with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Bi-directional terminals conduct equally in both polarities; no cathode band - mounting orientation irrelevant |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| Low incremental surge resistance | Enables tighter clamping (VC − VBR = 27.1 V) versus competing TVS devices, reducing stress on downstream ICs |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns |
| Glass passivated junction | Ensures stable VBR over lifetime and improved resistance to humidity-induced parameter drift |
Applications
| Automotive Power Distribution | Industrial Sensor Signal Lines |
|---|---|
Use Scenario: Protection of 48 V/54 V battery-fed control modules against load dump and alternator ripple in engine control units. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed across input rails to shunt surge energy before DC-DC converters. Use Value: Withstands 1500 W pulses and clamps to 87.1 V, preventing damage to 100 V-rated MOSFETs and microcontrollers. |
Use Scenario: Shielding analog outputs (e.g., 4–20 mA, CAN FD PHY) in factory-floor pressure/temperature sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: Fast-response (sub-nanosecond) transient suppressor bridging signal line to ground, minimizing data corruption. Use Value: 87.1 V clamping at 17.2 A preserves signal integrity under IEC 61000-4-2 Level 4 (15 kV air) and 61000-4-4 burst noise. |
| Telecom Power Feeds | Renewable Energy Inverters |
Use Scenario: Safeguarding PoE++ (IEEE 802.3bt) midspan injectors and splitters against induced lightning surges on Ethernet pairs. IC Role / Device Role / Timing Role: Bi-directional TVS array element protecting differential data/power lines referenced to common-mode ground. Use Value: Symmetric 54 V standoff and 87.1 V clamping align with 57 V max PoE++ open-circuit voltage, avoiding false triggering. |
Use Scenario: Input-stage protection of solar string inverters exposed to grid-switching transients and nearby lightning strikes. IC Role / Device Role / Timing Role: Primary surge suppression device on DC input bus prior to MPPT controller and isolation stage. Use Value: 1500 W PPPM rating handles multi-kA surges per IEC 61643-32; +150 °C TJ max supports outdoor enclosure 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 |
|---|---|---|---|
| Littelfuse SMAJ54CA | Same VWM (54 V), lower PPPM (400 W), higher VC (93.6 V at 4.3 A) | Suitable only for lower-energy transients; not recommended for ISO 7637-2 pulse 5a or IEC 61000-4-5 Level 4 | Select SMCJ54C-E3/57T where 1500 W surge immunity is required; SMAJ54CA fits space-constrained layouts with lower power needs. |
| ON Semiconductor 1.5KE54CA | Through-hole DO-201 package, same VWM/VC/PPPM specs but larger footprint and manual assembly requirement | Used in legacy industrial designs with through-hole manufacturing; incompatible with automated SMT lines | Choose SMCJ54C-E3/57T for new SMT-based automotive or telecom designs; 1.5KE54CA only if board redesign is impractical. |
Compared with SMAJ54CA and 1.5KE54CA, the SMCJ54C-E3/57T delivers 3.75× higher peak pulse power in a compact DO-214AB package with AEC-Q101 qualification - making it the preferred choice for next-generation automotive and high-reliability industrial systems requiring automated assembly and validated automotive stress performance.
Availability
SMCJ54C-E3/57T is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface protection, telecom PoE++ feed protection, and renewable energy inverter input stages requiring stable component supply and full traceability.
Supply support for SMCJ54C-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, thermal performance, and automotive qualification.
The SMCJ series was engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications demanding AEC-Q101 compliance, 1500 W surge capability, and stable clamping over temperature.
FAQ
What is the clamping voltage of the SMCJ54C-E3/57T under a 10/1000 µs surge?
The SMCJ54C-E3/57T clamps to a maximum of 87.1 V when subjected to its rated peak pulse current of 17.2 A (IPPM) under a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in the Vishay datasheet Document Number 88394, page 2. The clamping performance directly protects downstream 100 V-rated components in 54 V systems.
Is the SMCJ54C-E3/57T suitable for automotive applications?
Yes, the SMCJ54C-E3/57T is AEC-Q101 qualified per the Vishay datasheet, with validation across temperature cycling, high-temperature reverse bias (HTRB), and ESD testing. Its +150 °C maximum junction temperature, MSL Level 1 rating, and DO-214AB package make it suitable for engine control units, body electronics, and ADAS power supplies where ISO 7637-2 compliance is required.
Does the SMCJ54C-E3/57T have polarity markings?
No, the SMCJ54C-E3/57T is a bi-directional TVS diode and carries no polarity marking - consistent with the "CA" suffix designation. Its symmetrical construction allows installation in either orientation on the PCB, simplifying automated placement and eliminating risk of reverse-mount errors during SMT assembly.
What is the thermal resistance of the SMCJ54C-E3/57T?
The SMCJ54C-E3/57T has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on the minimum recommended 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. This value is specified in the Thermal Characteristics table of the Vishay datasheet (Document Number 88394, page 3) and informs PCB layout decisions for sustained power dissipation.
How does the SMCJ54C-E3/57T differ from the uni-directional SMCJ54A-E3/57T?
The SMCJ54C-E3/57T is bi-directional (CA suffix) with symmetrical clamping in both polarities and no cathode band, whereas the SMCJ54A-E3/57T is uni-directional (A suffix) with a cathode band and conducts only in reverse bias. Their VWM (54 V), VBR (60.0–66.3 V), and PPPM (1500 W) are identical, but the C-version is mandatory for AC-coupled or floating-rail protection where polarity reversal occurs.
SMCJ54C-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:
- -
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SMCJ54C-E3/57T FAQ
1.How can I place an order for SMCJ54C-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ54C-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 SMCJ54C-E3/57T reliable?
The price and inventory of SMCJ54C-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 SMCJ54C-E3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ54C-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ54C-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ54C-E3/57T?
SMCJ54C-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ54C-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 SMCJ54C-E3/57T?
For technical support, including SMCJ54C-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ54C-E3/57T requirements.
6.How does Aetrix verify that SMCJ54C-E3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ54C-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 SMCJ54C-E3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ54C-E3/57T?
All SMCJ54C-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ54C-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 SMCJ54C-E3/57T part is unused and in its original packaging.
Return procedure for SMCJ54C-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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