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Vishay General Semiconductor - Diodes Division SMCJ64A-E3/57T
- Part No.:
- SMCJ64A-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ64A-E3/57T.pdf
- Description:
- TVS DIODE 64VWM 103VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:1,357
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Product details
Overview
SMCJ64A-E3/57T from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping voltage transients up to 103 V at 14.6 A peak pulse current (10/1000 µs), with 64 V standoff voltage and 1500 W peak pulse power rating. It protects MOSFETs, ICs, and sensor signal lines in automotive and industrial power electronics.
For engineers reviewing the SMCJ64A-E3/57T datasheet, SMCJ64A-E3/57T pinout, SMCJ64A-E3/57T application, or SMCJ64A-E3/57T equivalent, key selection criteria include clamping voltage (103 V), breakdown voltage range (71.1–78.6 V), unidirectional polarity, RoHS-compliant matte tin plating, and AEC-Q101 qualification eligibility via HE3 suffix variants.
Technical Context
This TVS diode operates as a clamping device in parallel with sensitive circuit nodes, entering avalanche conduction when reverse voltage exceeds its breakdown threshold (71.1–78.6 V). Its low incremental surge resistance and fast response time ensure effective suppression of inductive switching spikes and ESD events.
Thermal performance is defined by junction-to-ambient thermal resistance of 75 °C/W and maximum junction temperature of +150 °C. The device uses glass-passivated silicon junction technology and meets MSL level 1 per J-STD-020 with 260 °C reflow peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 64 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 71.1 V / 78.6 V - Breakdown voltage range at 1 mA test current; defines turn-on threshold tolerance |
| VC @ IPPM | 103 V - Clamped voltage at 14.6 A peak pulse current; determines protected node voltage ceiling |
| PPPM | 1500 W - Peak pulse power handling capability with 10/1000 µs waveform; defines surge energy capacity |
| IPPM | 14.6 A - Maximum non-repetitive peak surge current; sets single-event robustness limit |
| TJ max | +150 °C - Maximum allowable junction temperature; constrains thermal design margin |
| RθJA | 75 °C/W - Junction-to-ambient thermal resistance on standard 8 mm × 8 mm copper pads; guides PCB copper area requirements |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Polarity marked by cathode band on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | High-side connection point for reverse-biased clamping | Connected to protected line; conducts avalanche current to anode during overvoltage |
| Anode | Low-side reference terminal | Typically tied to ground or common return path; completes clamping current loop |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power rating | Enables protection against high-energy transients such as ISO 7637-2 Pulse 5a without derating on standard PCB pads |
| Clamping voltage ≤ 103 V at 14.6 A | Ensures downstream 64 V-rated components remain within safe operating area during surge events |
| MSL Level 1 moisture sensitivity | Allows direct placement without baking; compatible with standard SMT reflow profiles up to 260 °C peak |
| Glass-passivated junction | Provides stable leakage performance and long-term reliability under thermal cycling and humidity stress |
| RoHS-compliant, halogen-free option available | Meets environmental compliance requirements for automotive and industrial end equipment |
Applications
| Automotive Power Distribution | Industrial Motor Drive Inputs |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs and body control modules from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed across input rails to clamp surges above 64 V while remaining inactive during normal operation. Use Value: Prevents damage to DC-DC controllers and microcontrollers by limiting rail voltage to ≤103 V during 1500 W transient events. | Use Scenario: Safeguarding gate drivers and current-sense amplifiers connected to IGBT half-bridges in variable-frequency drives. IC Role / Device Role / Timing Role: Parallel-connected clamping device on power supply inputs to absorb inductive kickback from motor windings. Use Value: Maintains signal integrity and prevents latch-up in analog front-ends by suppressing sub-microsecond voltage spikes up to 14.6 A. |
| Telecom Power Supply Outputs | Automotive Sensor Signal Lines |
Use Scenario: Securing +48 V telecom rectifier outputs against lightning-induced surges and hot-swap transients. IC Role / Device Role / Timing Role: Standoff-rated TVS on secondary-side DC outputs to provide fail-safe overvoltage clamping independent of regulation loop. Use Value: Guarantees output stays below 103 V during 10/1000 µs surges, preserving PoE injector compatibility and downstream PHY ICs. | Use Scenario: Shielding LIN/CAN transceiver data lines and analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance unidirectional suppressor placed between signal line and chassis ground near connector entry point. Use Value: Limits transient-induced signal distortion and bit errors by clamping to ≤103 V within nanoseconds while adding <1 pF parasitic capacitance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ64A-E3/61 | Lower peak pulse power (400 W), smaller SMA package (DO-214AC), same VWM/VC specs | Not suitable for high-energy automotive load dump; limited to consumer-grade surge immunity | Select when board space is constrained and surge energy does not exceed 400 W |
| SMCJ64CA-E3/57T | Bidirectional variant with identical VWM, VBR, and PPPM; symmetric clamping in both polarities | Required for AC-coupled or floating signal lines where polarity reversal may occur | Choose for differential bus protection (e.g., RS-485) or ungrounded sensor interfaces |
Compared with SMAJ64A-E3/61 and SMCJ64CA-E3/57T, the SMCJ64A-E3/57T delivers 3.75× higher surge energy handling in the same SMC footprint and supports unidirectional DC rail protection without polarity ambiguity, making it optimal for automotive and industrial primary-side clamping.
Availability
SMCJ64A-E3/57T is available at Aetrix Electronics and suitable for automotive ECUs, industrial motor drives, telecom power supplies, and sensor interface circuits requiring stable component supply and AEC-Q101-qualified alternatives.
Supply support for SMCJ64A-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, MOSFETs, and protection devices with emphasis on reliability, power efficiency, and automotive qualification.
The SMCJ series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where robustness against load dump, ESD, and inductive switching is critical.
FAQ
What is the clamping voltage of the SMCJ64A-E3/57T under maximum rated surge current?
The SMCJ64A-E3/57T has a maximum clamping voltage (VC) of 103 V when subjected to its rated 14.6 A peak pulse current (IPPM) using the standard 10/1000 µs waveform. This value is measured at TA = 25 °C on 8.0 mm × 8.0 mm copper pads and defines the upper voltage limit imposed on protected circuitry during surge events. The SMCJ64A-E3/57T maintains this clamping performance across its full operating temperature range.
Is the SMCJ64A-E3/57T suitable for automotive applications requiring AEC-Q101 qualification?
The SMCJ64A-E3/57T itself is RoHS-compliant commercial-grade; however, the AEC-Q101-qualified version is designated as SMCJ64AHE3_X (e.g., SMCJ64AHE3_A), using the HE3 suffix and revision code. The SMCJ64A-E3/57T shares identical electrical and mechanical specifications but lacks formal automotive qualification documentation. For production automotive use, specify the HE3 variant of the SMCJ64A-E3/57T family.
What is the standoff voltage and breakdown voltage range for the SMCJ64A-E3/57T?
The SMCJ64A-E3/57T has a standoff voltage (VWM) of 64 V and a minimum/maximum breakdown voltage (VBR) range of 71.1 V to 78.6 V at 1 mA test current. This ensures reliable non-conduction during normal operation while guaranteeing avalanche turn-on before reaching damaging voltage levels. These parameters are confirmed in Vishay document 88394, Table "ELECTRICAL CHARACTERISTICS", row for SMCJ64A.
How does the SMCJ64A-E3/57T differ from bidirectional variants like SMCJ64CA-E3/57T?
The SMCJ64A-E3/57T is unidirectional with cathode marking and conducts only in reverse bias, whereas the SMCJ64CA-E3/57T is bidirectional with no polarity marking and clamps symmetrically in both directions. Both share identical VWM (64 V), VBR, and PPPM (1500 W), but the SMCJ64A-E3/57T is intended for DC rail protection, while the CA variant suits AC or floating signal paths. The SMCJ64A-E3/57T cannot replace SMCJ64CA-E3/57T in bidirectional applications.
What package type and mounting requirements apply to the SMCJ64A-E3/57T?
The SMCJ64A-E3/57T uses the SMC (DO-214AB) surface-mount package with standardized dimensions: 7.11 mm × 6.22 mm × 2.62 mm. It requires 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal for rated power dissipation. The device is MSL Level 1 and compatible with standard lead-free reflow profiles peaking at 260 °C, with matte tin-plated leads meeting J-STD-002 solderability requirements.
SMCJ64A-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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 64V
- Voltage - Breakdown (Min):
- 71.1V
- Voltage - Clamping (Max) @ Ipp:
- 103V
- Current - Peak Pulse (10/1000µs):
- 14.6A
- 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)
SMCJ64A-E3/57T FAQ
1.How can I place an order for SMCJ64A-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ64A-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 SMCJ64A-E3/57T reliable?
The price and inventory of SMCJ64A-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 SMCJ64A-E3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ64A-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ64A-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ64A-E3/57T?
SMCJ64A-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ64A-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 SMCJ64A-E3/57T?
For technical support, including SMCJ64A-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ64A-E3/57T requirements.
6.How does Aetrix verify that SMCJ64A-E3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ64A-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 SMCJ64A-E3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ64A-E3/57T?
All SMCJ64A-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ64A-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 SMCJ64A-E3/57T part is unused and in its original packaging.
Return procedure for SMCJ64A-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ64A-E3/57T Tags
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