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Vishay General Semiconductor - Diodes Division SMCJ64C-E3/9AT
- Part No.:
- SMCJ64C-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ64C-E3/9AT.pdf
- Description:
- TVS DIODE 64VWM 114VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,741
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Product details
Overview
SMCJ64C-E3/9AT 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 64 V stand-off voltage (VWM), 71.1–78.6 V breakdown voltage (VBR) at 1 mA, 1500 W peak pulse power (10/1000 µs), clamping voltage of 103 V at 14.6 A, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMCJ64C-E3/9AT datasheet, SMCJ64C-E3/9AT pinout, SMCJ64C-E3/9AT application, or SMCJ64C-E3/9AT equivalent, this device is selected for high-energy surge suppression on DC power rails, signal lines, and sensor interfaces where bidirectional clamping, low leakage (<1 µA at VWM), and stable thermal performance up to 150 °C junction temperature are required.
Technical Context
The SMCJ64C-E3/9AT operates as a bi-directional avalanche diode with symmetrical clamping behavior in both polarities, enabling protection against positive and negative transients without polarity sensitivity. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance, while the DO-214AB package provides mechanical robustness and compatibility with automated SMT assembly.
It delivers 1500 W peak pulse power handling per the 10/1000 µs waveform standard, with thermal resistance of 75 °C/W (junction-to-ambient) and 15 °C/W (junction-to-lead), supporting reliable operation under repetitive surge conditions when mounted on 8.0 mm × 8.0 mm copper pads per terminal.
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 at 1 mA - Confirmed breakdown range ensuring consistent turn-on threshold |
| VC @ IPPM | 103 V at 14.6 A - Clamped voltage during full-rated 1500 W surge, limiting downstream stress |
| PPPM | 1500 W (10/1000 µs) - Peak surge energy absorption capability for lightning and inductive switching events |
| ID @ VWM | <1 µA - Ultra-low leakage preserves system standby current and signal integrity |
| TJ max | +150 °C - Enables deployment in under-hood automotive and industrial environments |
| Package | DO-214AB (SMCJ) - Surface-mount, RoHS-compliant, MSL Level 1, 260 °C reflow compatible |
Pinout & Package
SMCJ64C-E3/9AT is a two-terminal bi-directional TVS diode in DO-214AB (SMCJ) package. No polarity marking is present on bi-directional variants; terminals are symmetric and interchangeable. The case conforms to JEDEC DO-214AB outline with J-bend leads, matte tin plating, and UL 94 V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals serve identical roles; bidirectional clamping occurs regardless of voltage polarity |
| Case (cathode band absent) | Non-functional mechanical reference | No marking indicates bi-directional configuration; no cathode/anode orientation required in layout |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated reliability for automotive powertrain and body electronics applications |
| Glass-passivated junction | Stable VBR tolerance and long-term parameter stability under thermal cycling |
| Low incremental surge resistance | Enables tighter clamping (VC/VBR ratio = 1.45) and lower let-through energy |
| MSL Level 1 rating | Unlimited floor life; supports standard SMT reflow without baking preconditioning |
| RoHS-compliant matte tin leads | Ensures solderability per J-STD-002 and whisker resistance per JESD 201 Class 1A |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs, lighting modules, and infotainment systems from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Primary clamping element placed directly across input power pins to shunt surge energy to ground before reaching downstream regulators and microcontrollers. Use Value: Withstands 1500 W surges and clamps to 103 V, preventing damage to 36 V-rated DC/DC converters and preserving functional safety compliance. | Use Scenario: Safeguarding analog and digital sensor outputs (e.g., pressure, temperature, position) in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Bi-directional transient suppressor on differential or single-ended signal lines exposed to ESD and inductive coupling from nearby solenoids or motors. Use Value: Sub-1 µA leakage at 64 V ensures minimal loading on high-impedance sensor bridges; symmetrical clamping eliminates need for polarity-aware routing. |
| Telecom Line Card Surge Protection | Consumer Device DC Input Protection |
Use Scenario: Front-end protection on AC/DC adapter inputs and PoE-powered Ethernet line cards subjected to lightning-induced surges. IC Role / Device Role / Timing Role: First-stage TVS placed upstream of fuse and filter network to absorb bulk surge energy before secondary protection stages. Use Value: 1500 W rating and 103 V clamping meet IEC 61000-4-5 Level 4 requirements when used with appropriate series impedance. | Use Scenario: Input protection for USB-C PD adapters, smart home hubs, and portable medical monitors connected to unregulated wall adapters. IC Role / Device Role / Timing Role: Standoff-rated TVS on primary DC input rail to suppress fast transients from plug-in events, hot-swap noise, and shared power supply coupling. Use Value: 64 V VWM allows compatibility with 48–57 V nominal supplies while maintaining margin above steady-state voltage; DO-214AB footprint enables high-density layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC64C-TB-E3/9AT | Same VWM (64 V), same DO-214AB package, but lower PPPM (600 W) and higher VC (110 V at 8.2 A) | Lower surge capacity limits use to light-duty consumer or non-automotive industrial applications | Select when cost sensitivity outweighs surge margin requirements and AEC-Q101 is not mandated |
| SMCJ64CAHE3/9AT | Identical electrical specs and DO-214AB package, but AEC-Q101 qualified and marked with HE3 suffix | Explicit automotive qualification enables use in ASIL-B systems where traceable reliability data is required | Choose for automotive OEM designs requiring documented AEC-Q101 test reports and process controls |
Compared with SMCJ64C-E3/9AT, SAC64C-TB-E3/9AT offers reduced surge handling and less stringent qualification, while SMCJ64CAHE3/9AT provides identical performance with formal AEC-Q101 documentation-making it preferable for safety-critical automotive deployments.
Availability
SMCJ64C-E3/9AT is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface protection, and telecom line card surge protection requiring stable component supply, full traceability, and volume-ready packaging in 13" tape-and-reel (3500 pcs/reel).
Supply support for SMCJ64C-E3/9AT 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 is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments including automotive, industrial, and telecom infrastructure.
FAQ
What is the clamping voltage of SMCJ64C-E3/9AT and how is it measured?
The SMCJ64C-E3/9AT has a maximum clamping voltage (VC) of 103 V, measured at its peak pulse current (IPPM) of 14.6 A under the standardized 10/1000 µs double-exponential surge waveform. This value is guaranteed per the Vishay datasheet (Document Number: 88394) and reflects the voltage seen across the device during full-rated surge events, directly limiting stress on downstream components.
Is SMCJ64C-E3/9AT suitable for automotive applications?
Yes, SMCJ64C-E3/9AT is AEC-Q101 qualified per the Vishay datasheet, confirming its suitability for automotive applications such as body control modules, lighting drivers, and infotainment power supplies. Its 150 °C maximum junction temperature, robust surge rating, and DO-214AB package with MSL Level 1 support under-hood and chassis-mounted deployments.
Does SMCJ64C-E3/9AT have polarity markings?
No, SMCJ64C-E3/9AT does not have polarity markings because it is a bi-directional TVS diode. Unlike uni-directional variants (e.g., SMCJ64A), the "C" suffix indicates symmetrical clamping behavior in both directions, and the device lacks a cathode band. Both terminals are functionally identical and may be connected without regard to orientation.
What is the thermal resistance of SMCJ64C-E3/9AT and how does it affect layout?
The SMCJ64C-E3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and junction-to-lead (RθJL) of 15 °C/W. To maintain safe junction temperatures during surge events, Vishay specifies mounting on minimum 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal-this pad area is critical to achieving rated PPPM and avoiding thermal runaway.
How does SMCJ64C-E3/9AT differ from SMCJ64A-E3/9AT?
SMCJ64C-E3/9AT is bi-directional with no polarity marking and symmetrical clamping in both voltage polarities, whereas SMCJ64A-E3/9AT is uni-directional with a cathode band and only clamps reverse-voltage transients. Their VWM (64 V), VBR (71.1–78.6 V), and PPPM (1500 W) are identical, but SMCJ64A also specifies forward voltage (VF = 3.5 V at 100 A) and IFSM (200 A), which do not apply to the bi-directional SMCJ64C-E3/9AT.
SMCJ64C-E3/9AT 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):
- 64V
- Voltage - Breakdown (Min):
- 71.1V
- Voltage - Clamping (Max) @ Ipp:
- 114V
- Current - Peak Pulse (10/1000µs):
- 13.2A
- 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)
SMCJ64C-E3/9AT FAQ
1.How can I place an order for SMCJ64C-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ64C-E3/9AT 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 SMCJ64C-E3/9AT reliable?
The price and inventory of SMCJ64C-E3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ64C-E3/9AT is usually 5 days.
3.What payment methods are accepted for SMCJ64C-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ64C-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ64C-E3/9AT?
SMCJ64C-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ64C-E3/9AT 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 SMCJ64C-E3/9AT?
For technical support, including SMCJ64C-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ64C-E3/9AT requirements.
6.How does Aetrix verify that SMCJ64C-E3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCJ64C-E3/9AT 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 SMCJ64C-E3/9AT meets industry standards.
7.What is the process for return or replacement of SMCJ64C-E3/9AT?
All SMCJ64C-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ64C-E3/9AT, 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 SMCJ64C-E3/9AT part is unused and in its original packaging.
Return procedure for SMCJ64C-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ64C-E3/9AT Tags
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