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Vishay General Semiconductor - Diodes Division SMCJ64CA-E3/57T
- Part No.:
- SMCJ64CA-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ64CA-E3/57T.pdf
- Description:
- TVS DIODE 64VWM 103VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:1,745
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Product details
Overview
SMCJ64CA-E3/57T from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection on power and signal lines. It features a 64 V standoff voltage (VWM), 103 V maximum clamping voltage at 14.6 A peak pulse current (10/1000 µs), and 1500 W peak pulse power dissipation - optimized for automotive and industrial DC bus protection.
For engineers reviewing the SMCJ64CA-E3/57T datasheet, SMCJ64CA-E3/57T pinout, SMCJ64CA-E3/57T application, or SMCJ64CA-E3/57T equivalent, key selection criteria include bidirectional clamping symmetry, low incremental surge resistance, AEC-Q101 qualification eligibility (via HE3 suffix variants), and compatibility with automated SMT placement on 8 mm × 8 mm copper pads.
Technical Context
The SMCJ64CA-E3/57T operates as a silicon avalanche diode with glass-passivated junction, delivering symmetrical clamping in both polarities due to its bidirectional construction. Its breakdown voltage range is 71.1 V to 78.6 V at 1 mA test current, with temperature coefficient of 0.105 %/°C - enabling stable overvoltage response across -55 °C to +150 °C operating junction range.
It meets J-STD-020 MSL Level 1 (peak reflow 260 °C), has matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and exhibits 75 °C/W typical junction-to-ambient thermal resistance when mounted on minimum recommended pad layout - critical for sustained surge duty cycle management.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 64 V - maximum continuous reverse operating voltage before clamping initiates; defines safe DC/AC working margin. |
| VBR min/max | 71.1 V / 78.6 V at 1 mA - guaranteed avalanche onset window; ensures predictable turn-on under transients. |
| VC @ IPPM | 103 V at 14.6 A (10/1000 µs) - clamped voltage seen by protected circuit during worst-case surge. |
| PPPM | 1500 W - peak transient energy absorption capacity; supports IEC 61000-4-5 Level 4 compliance. |
| ID @ VWM | 1.0 µA - ultra-low leakage at rated standoff; preserves system efficiency in battery-powered applications. |
| TJ max | +150 °C - maximum junction temperature; enables operation in under-hood automotive environments. |
| Package | SMC (DO-214AB) - surface-mount outline with 7.75 mm × 6.22 mm footprint; compatible with standard SMT pick-and-place. |
Pinout & Package
SMCJ64CA-E3/57T uses the SMC (DO-214AB) package: a two-terminal, bidirectional device with no polarity marking. Terminals are matte tin-plated leads suitable for reflow soldering per J-STD-002; mounting requires 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal per datasheet Fig. 2 derating guidance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity; symmetric conduction path. |
| Terminal 2 | Anode/Cathode (bidirectional) | Electrically identical to Terminal 1; no functional distinction - device is fully reversible. |
Key Features
| Feature | Design Value |
|---|---|
| Low profile SMC package | Height ≤ 2.62 mm - enables compact PCB layouts in space-constrained automotive ECUs and industrial controllers. |
| Glass passivated junction | Enhanced reliability and moisture resistance - critical for long-term field operation in humid or thermally cycled environments. |
| Very fast response time | < 1.0 ps junction response - clamps transients before sensitive downstream ICs (e.g., CAN transceivers, microcontrollers) experience overstress. |
| Meets MSL Level 1 | Reflow-compatible up to 260 °C peak - eliminates pre-baking requirements and simplifies manufacturing flow. |
| AEC-Q101 qualification path | HE3/HM3 suffix variants available - supports automotive-grade sourcing without redesign for safety-critical modules. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V/24 V battery-fed control modules against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across input rails upstream of DC-DC converters and LDOs. Use Value: Limits transient voltage to ≤103 V during 1500 W surges, preventing damage to voltage regulators and MCU power domains. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) connected to PLC I/O modules. IC Role / Device Role / Timing Role: Parallel-connected TVS on differential or single-ended signal lines exposed to ESD and inductive switching noise. Use Value: Sub-1 ns response and 1.0 µA leakage preserve signal integrity while suppressing ±15 kV contact ESD per IEC 61000-4-2. |
| Telecom DC Power Feeds | Consumer Appliance Motor Drive Inputs |
|
Use Scenario: Input protection for PoE-powered equipment and base station RF front-end power supplies. IC Role / Device Role / Timing Role: Primary surge suppression stage on 48 V DC input before filtering and regulation stages. Use Value: 1500 W PPPM rating handles repeated lightning-induced surges on outdoor telecom infrastructure links. |
Use Scenario: Clamping voltage spikes generated by brushed DC motor commutation in washing machines or HVAC blowers. IC Role / Device Role / Timing Role: Across-line TVS on H-bridge supply rails to absorb inductive kickback energy. Use Value: Symmetrical bidirectional clamping prevents reverse-bias overstress on MOSFETs during rapid direction reversal. |
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-E3/57T | Lower PPPM (400 W), smaller SMA package (DO-214AC), higher VC (104 V at 3.8 A). | Suitable for lower-energy transients; limited to consumer-grade non-automotive use due to lack of AEC-Q101 path. | Select when board space is constrained and surge threat level is ≤ IEC 61000-4-5 Level 2. |
| SMCJ64A-E3/57T | Unidirectional version; same VWM (64 V), VC (103 V), and PPPM (1500 W); cathode band marking required. | Requires correct polarity placement; unsuitable for AC-coupled or floating signal lines where bidirectional clamping is mandatory. | Choose only when protecting unidirectional DC rails with known polarity and no risk of reverse voltage transients. |
Compared with SMCJ64CA-E3/57T, SMAJ64A-E3/57T trades surge capacity and thermal robustness for footprint reduction, while SMCJ64A-E3/57T sacrifices design flexibility for polarity-specific optimization - making the bidirectional SMCJ64CA-E3/57T the default choice for universal DC bus and floating interface protection.
Availability
SMCJ64CA-E3/57T is available at Aetrix Electronics and suitable for automotive electronic control units, industrial programmable logic controllers, telecom power distribution units, and consumer appliance motor drive circuits requiring stable component supply and long-term production continuity.
Supply support for SMCJ64CA-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, precision, and automotive-grade qualification.
The SMCJ series was developed specifically for high-power transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where failure resilience and repeatable clamping performance are mission-critical.
FAQ
What is the clamping voltage of SMCJ64CA-E3/57T under a 10/1000 µs surge?
The SMCJ64CA-E3/57T clamps to a maximum of 103 V when subjected to its rated peak pulse current of 14.6 A using the standardized 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in the Vishay datasheet Document Number 88394, page 2, Electrical Characteristics table. The clamping voltage directly determines the maximum stress imposed on downstream components during surge events.
Is SMCJ64CA-E3/57T RoHS-compliant and halogen-free?
Yes, SMCJ64CA-E3/57T carries the "E3" suffix, indicating it is RoHS-compliant and commercial grade per Vishay's ordering nomenclature. It is not halogen-free - that designation requires the "M3" suffix (e.g., SMCJ64CA-M3/57T). Both E3 and M3 variants meet JESD 201 Class 2 whisker resistance and UL 94 V-0 flammability requirements for the molding compound.
Does SMCJ64CA-E3/57T have AEC-Q101 qualification?
The base SMCJ64CA-E3/57T is not AEC-Q101 qualified; however, Vishay offers AEC-Q101-qualified versions under the HE3 (RoHS-compliant + AEC-Q101) and HM3 (halogen-free + RoHS + AEC-Q101) suffixes - for example, SMCJ64CAHE3_A/H. These require explicit ordering with the HE3 or HM3 suffix and are documented in the same datasheet as qualified per note (1) on page 3.
What is the thermal resistance of SMCJ64CA-E3/57T, and how does it affect layout?
The SMCJ64CA-E3/57T has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on the minimum recommended pad layout (0.31" × 0.31" copper pads per terminal). This value assumes no additional heatsinking; larger copper areas or internal planes reduce RθJA. Layout must allocate sufficient copper area to avoid exceeding +150 °C junction temperature during repetitive surge events.
How does the bidirectional nature of SMCJ64CA-E3/57T impact circuit placement?
Because SMCJ64CA-E3/57T is bidirectional, it has no polarity marking and may be placed in either orientation across protected lines - ideal for AC-coupled interfaces, floating sensors, or DC buses where reverse transients are possible. Unlike unidirectional variants (e.g., SMCJ64A-E3/57T), it eliminates risk of incorrect orientation during assembly and supports symmetrical protection without circuit redesign.
SMCJ64CA-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:
- -
- Bidirectional Channels:
- 1
- 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)
SMCJ64CA-E3/57T FAQ
1.How can I place an order for SMCJ64CA-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ64CA-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 SMCJ64CA-E3/57T reliable?
The price and inventory of SMCJ64CA-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 SMCJ64CA-E3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ64CA-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ64CA-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ64CA-E3/57T?
SMCJ64CA-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ64CA-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 SMCJ64CA-E3/57T?
For technical support, including SMCJ64CA-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ64CA-E3/57T requirements.
6.How does Aetrix verify that SMCJ64CA-E3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ64CA-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 SMCJ64CA-E3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ64CA-E3/57T?
All SMCJ64CA-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ64CA-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 SMCJ64CA-E3/57T part is unused and in its original packaging.
Return procedure for SMCJ64CA-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ64CA-E3/57T Tags
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