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Vishay General Semiconductor - Diodes Division SMCJ64CA-M3/57T
- Part No.:
- SMCJ64CA-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ64CA-M3/57T.pdf
- Description:
- TVS DIODE 64VWM 103VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,948
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Product details
Overview
SMCJ64CA-M3/57T from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 64 V standoff voltage (VWM), 103 V maximum clamping voltage (VC) at 14.6 A peak pulse current (IPPM), and 1500 W peak pulse power (10/1000 µs waveform), commonly deployed on power rails and signal lines in automotive and industrial control systems.
For engineers reviewing the SMCJ64CA-M3/57T datasheet, SMCJ64CA-M3/57T pinout, SMCJ64CA-M3/57T application, or SMCJ64CA-M3/57T equivalent, key selection criteria include bidirectional clamping capability, halogen-free RoHS-compliant construction (M3 suffix), AEC-Q101 qualification eligibility, and compatibility with automated SMT placement on 8 mm × 8 mm copper pads per terminal.
Technical Context
The SMCJ64CA-M3/57T operates as a silicon avalanche diode with symmetrical breakdown characteristics in both polarities, enabling suppression of positive and negative transients without polarity sensitivity. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and low incremental surge resistance, critical for fast response to ESD and inductive switching events.
Thermally, it exhibits RθJA = 75 °C/W (junction-to-ambient) and RθJL = 15 °C/W (junction-to-lead), supporting reliable operation up to TJ = +150 °C. The device is rated for non-repetitive 10/1000 µs surges and derates linearly above 25 °C ambient per Figure 2 in the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 64 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working range for protected circuitry. |
| VBR (min/max) | 71.1 V / 78.6 V - Breakdown voltage range at 1 mA test current; ensures consistent avalanche initiation across production lots. |
| VC @ IPPM | 103 V - Clamped voltage during 14.6 A 10/1000 µs surge; determines worst-case overvoltage seen by downstream ICs. |
| PPPM | 1500 W - Peak pulse power handling capacity; enables protection against high-energy transients like ISO 7637-2 Pulse 1/2a/5a. |
| IPPM | 14.6 A - Peak surge current supported at VC; directly relates to energy absorption (E ≈ 0.5 × VC × IPPM × tp). |
| TJ max. | +150 °C - Maximum junction temperature; allows use in under-hood automotive environments and high-temperature industrial enclosures. |
| Package | SMC (DO-214AB) - Surface-mount outline with 8.0 mm × 8.0 mm thermal pad footprint; supports automated placement and meets MSL Level 1. |
Pinout & Package
SMCJ64CA-M3/57T uses the SMC (DO-214AB) package: a surface-mount, bidirectional device with no polarity marking. The case is molded in UL 94 V-0 compliant compound; terminals are matte tin-plated and solderable per J-STD-002/JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; symmetric with cathode in bidirectional operation | Enables clamping of negative transients when referenced to system ground; no dedicated anode/cathode orientation required. |
| Cathode | Current exit point in forward bias; symmetric with anode in bidirectional operation | Enables clamping of positive transients; identical electrical behavior to anode due to bidirectional symmetry. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Equal VBR, VC, and IPPM in both directions - eliminates need for polarity-aware layout and simplifies PCB routing for AC-coupled or floating lines. |
| Halogen-free, RoHS-compliant (M3) | Meets JESD201 Class 2 whisker resistance and environmental compliance mandates - suitable for automotive Tier-1 supply chains requiring strict material declarations. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients - improves protection margin for 3.3 V/5 V logic and CAN/LIN transceivers. |
| AEC-Q101 qualification path | Base P/NHM3_X variant available - enables drop-in qualification for automotive applications without redesigning TVS selection. |
| MSL Level 1 rating | Reflow-compatible up to 260 °C peak - supports standard lead-free assembly processes without moisture sensitivity concerns. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-supplied ECUs from load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional TVS placed between power rail and chassis ground to clamp ±100 V transients within 1 ns. Use Value: Limits voltage excursion to ≤103 V during 14.6 A surges, preserving integrity of 36 V-rated DC-DC converters and microcontrollers. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events in factory automation. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted at connector entry point to shunt transients before reaching op-amp input stages. Use Value: Maintains signal fidelity with <1.0 µA leakage at 64 V, avoiding DC offset errors while suppressing ±8 kV contact ESD per IEC 61000-4-2. |
| Telecom Line Surge Suppression | Consumer USB Port Protection |
Use Scenario: Safeguarding Ethernet PHY interfaces and PoE injectors against lightning-induced surges on twisted-pair cables. IC Role / Device Role / Timing Role: Bidirectional TVS integrated into common-mode choke output stage to absorb differential and common-mode transients. Use Value: Handles 1500 W peak power without degradation, meeting GR-1089-CORE Level 3 surge immunity requirements. | Use Scenario: Preventing damage to USB 2.0 data lines and VBUS from hot-plug transients and human-body-model ESD. IC Role / Device Role / Timing Role: Compact SMC-packaged TVS placed adjacent to USB connector to minimize trace inductance in clamping path. Use Value: Achieves sub-100 ns response time and clamps VBUS to ≤103 V during 1 A surge, protecting USB controller I/O pins rated for 5.5 V absolute max. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC64CA | Same VWM (64 V), lower PPPM (600 W), smaller SMA package | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a | Select when space-constrained and surge energy ≤600 W; verify thermal derating on small pads. |
| SMCJ64A-M3/57T | Unidirectional version; same VWM, VC, PPPM, but marked cathode band | Requires polarity-aware layout; not interchangeable without schematic revision | Choose only if circuit topology demands unidirectional clamping (e.g., DC-biased signal lines). |
Compared with SAC64CA and SMCJ64A-M3/57T, the SMCJ64CA-M3/57T uniquely delivers 1500 W bidirectional surge handling in a thermally robust SMC package, making it the preferred choice for automotive and industrial applications where polarity-agnostic protection and high-energy immunity are mandatory.
Availability
SMCJ64CA-M3/57T is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface development, and telecom infrastructure projects requiring stable component supply and halogen-free compliance.
Supply support for SMCJ64CA-M3/57T 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 and automotive-grade qualification.
The SMCJ series is engineered specifically for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where robustness against load dump, ESD, and lightning surges is critical.
FAQ
What is the clamping voltage of the SMCJ64CA-M3/57T under a 10/1000 µs surge?
The SMCJ64CA-M3/57T clamps to a maximum of 103 V when subjected to its rated 14.6 A peak pulse current (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 ensures downstream components see no more than 103 V during surge events, which is essential for protecting 36 V-rated power management ICs in automotive applications using the SMCJ64CA-M3/57T.
Is the SMCJ64CA-M3/57T suitable for automotive applications?
Yes, the SMCJ64CA-M3/57T is qualified for automotive use via the HM3 suffix variant (e.g., SMCJ64CAHM3_A/H), which meets AEC-Q101 stress testing requirements. While the M3 suffix itself denotes halogen-free RoHS compliance, the base SMCJ64CA-M3/57T shares identical electrical and thermal specifications with its AEC-Q101-qualified counterpart. Engineers deploying the SMCJ64CA-M3/57T in automotive designs should specify the HM3 variant for formal qualification, but can rely on the same robust transient suppression performance in the SMCJ64CA-M3/57T for prototyping and pre-qualification stages.
What does the "CA" suffix mean in SMCJ64CA-M3/57T?
The "CA" suffix in SMCJ64CA-M3/57T indicates a bidirectional configuration - meaning the device provides symmetrical transient voltage suppression for both positive and negative polarity transients. Unlike unidirectional variants (e.g., SMCJ64A), the SMCJ64CA-M3/57T has no cathode marking and exhibits identical breakdown (71.1–78.6 V), clamping (103 V), and surge current (14.6 A) characteristics in either direction. This makes the SMCJ64CA-M3/57T ideal for protecting AC-coupled signals, floating buses, or circuits where voltage polarity reversal is possible.
What is the thermal resistance of the SMCJ64CA-M3/57T?
According to the Vishay datasheet (Document Number 88394, page 3), the SMCJ64CA-M3/57T has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and a junction-to-lead resistance (RθJL) of 15 °C/W, measured on the recommended 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pad layout per terminal. These values enable reliable operation up to +150 °C junction temperature and inform thermal design decisions - for example, limiting average power dissipation to ≤6.5 W at 50 °C ambient, as specified in the maximum ratings table for the SMCJ64CA-M3/57T.
How does the SMCJ64CA-M3/57T differ from the SMCJ64A-M3/57T?
The SMCJ64CA-M3/57T is bidirectional, whereas the SMCJ64A-M3/57T is unidirectional - the latter features a cathode band marking and conducts only in reverse bias, while the former clamps equally in both directions with no polarity marking. Electrically, both share identical VWM (64 V), VC (103 V), and PPPM (1500 W), but the SMCJ64A-M3/57T specifies IFSM = 200 A (8.3 ms half-sine) and forward voltage (VF = 3.5 V @ 100 A), parameters not applicable to the bidirectional SMCJ64CA-M3/57T. Layouts using the SMCJ64CA-M3/57T avoid polarity constraints, simplifying routing for differential or AC signals.
SMCJ64CA-M3/57T 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 (SMC)
SMCJ64CA-M3/57T FAQ
1.How can I place an order for SMCJ64CA-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ64CA-M3/57T 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-M3/57T reliable?
The price and inventory of SMCJ64CA-M3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ64CA-M3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ64CA-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ64CA-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ64CA-M3/57T?
SMCJ64CA-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ64CA-M3/57T 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-M3/57T?
For technical support, including SMCJ64CA-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ64CA-M3/57T requirements.
6.How does Aetrix verify that SMCJ64CA-M3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ64CA-M3/57T 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-M3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ64CA-M3/57T?
All SMCJ64CA-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ64CA-M3/57T, 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-M3/57T part is unused and in its original packaging.
Return procedure for SMCJ64CA-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ64CA-M3/57T Tags
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