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Vishay General Semiconductor - Diodes Division SMC5K64CA-M3/H
- Part No.:
- SMC5K64CA-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMC5K64CA-M3/H.pdf
- Description:
- TVS DIODE 64VWM 103VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:1,867
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Product details
Overview
SMC5K64CA-M3/H 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 64 V stand-off voltage (VWM), 71.1–78.6 V breakdown voltage (VBR) at 1 mA, 103 V clamping voltage (VC) at 48.5 A (10/1000 μs), and 5000 W peak pulse power rating - deployed in automotive power supplies and industrial sensor interfaces.
For engineers reviewing the SMC5K64CA-M3/H datasheet, SMC5K64CA-M3/H pinout, SMC5K64CA-M3/H application, or SMC5K64CA-M3/H equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RthJA = 90 °C/W), junction capacitance behavior, and ESD immunity per IEC 61000-4-2 (30 kV contact/air).
Technical Context
This TVS operates as a voltage-clamped shunt protector with bidirectional conduction, triggered when reverse or forward transients exceed its breakdown threshold. Its low incremental surge resistance and fast response time (<1 ns) enable effective suppression of inductive switching spikes and lightning-induced surges without affecting normal circuit operation.
The device is rated for -55 °C to +175 °C operating junction temperature, meets MSL Level 1 per J-STD-020, and is halogen-free, RoHS-compliant, and qualified to AEC-Q101 - confirming suitability for under-hood automotive environments and high-reliability industrial control systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 64 V - maximum continuous reverse working voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (min/max) | 71.1 V / 78.6 V at 1 mA - precise breakdown range ensures consistent turn-on across production lots and temperature. |
| VC @ IPPM | 103 V at 48.5 A (10/1000 μs) - clamping voltage limits downstream IC stress during standardized surge events. |
| PPPM | 5000 W (10/1000 μs) - energy-handling capacity sufficient for ISO 7637-2 Pulse 5a/b and IEC 61000-4-5 Level 4 surges. |
| TJ max. | +175 °C - enables placement near hot components (e.g., power MOSFETs, DC/DC converters) without derating concerns. |
| RthJA | 90 °C/W - thermal resistance to ambient on standard FR4 PCB; informs heatsinking requirements for repeated surge duty. |
| ESD Rating | ±30 kV HBM (contact/air) per IEC 61000-4-2 - protects against human-body and system-level electrostatic discharge events. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, bidirectional configuration with no cathode band marking. Matte tin-plated leads, JEDEC-compliant footprint, MSL Level 1, 260 °C reflow compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current sink (reverse polarity path) | Provides low-impedance path to ground during negative transients; symmetrical with cathode for bidirectional clamping. |
| Cathode | Transient current sink (forward polarity path) | Provides low-impedance path to ground during positive transients; functionally identical to anode in bidirectional operation. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints. |
| AEC-Q101 qualification | Validates reliability for automotive powertrain, body electronics, and ADAS modules subject to extended temperature and vibration stress. |
| 40 kW surge capability (8/20 μs) | Supports high-current lightning surge standards (e.g., IEC 61000-4-5) where short-duration energy dominates. |
| Low RSURGE | Minimizes voltage overshoot during fast-rising transients, improving protection margin for sensitive 3.3 V/5 V logic and analog front-ends. |
| UL 497B recognition (E136766) | Confirms safety compliance for telecom and industrial interface protection circuits requiring certified surge components. |
Applications
| Automotive Power Distribution | Industrial Sensor Signal Lines |
|---|---|
Use Scenario: Protection of 12 V/24 V battery-fed ECUs against load dump and alternator transients. IC Role / Device Role / Timing Role: Shunt TVS placed at input filter stage to clamp surges before DC/DC regulators and microcontrollers. Use Value: Withstands 5000 W pulses and operates up to +175 °C, eliminating need for derating in engine bay locations. |
Use Scenario: Shielding 4–20 mA current loop and RS-485 bus nodes from EFT and surge coupling in factory automation. IC Role / Device Role / Timing Role: Bidirectional clamping element across differential pairs or supply-to-ground to prevent latch-up in transceivers. Use Value: 30 kV HBM ESD rating and 103 V clamping ensure signal integrity retention during maintenance handling and field surges. |
| Telecom Interface Ports | Consumer Appliance Motor Drivers |
Use Scenario: Surge protection on DSL, POTS, or PoE-powered Ethernet ports exposed to lightning-induced common-mode transients. IC Role / Device Role / Timing Role: Primary line-to-line and line-to-ground protector upstream of isolation transformers and PHY ICs. Use Value: 40 kW (8/20 μs) rating and UL 497B certification meet Telcordia GR-1089-CORE and ITU-T K.21 requirements. |
Use Scenario: Input-stage protection for BLDC motor controllers in washing machines and HVAC systems subjected to inductive kickback. IC Role / Device Role / Timing Role: Fast-response shunt device across bridge rectifier output or gate driver supply rails. Use Value: Low clamping voltage (103 V) prevents overvoltage damage to 600 V IGBTs and gate drivers during commutation spikes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64CA-M3/8A | Lower PPPM (600 W vs. 5000 W); SMB package (smaller footprint, higher RthJA ≈ 130 °C/W) | Suitable only for lower-energy transients (e.g., ESD-only, not lightning or load dump) | Select when space-constrained layouts prioritize size over surge robustness. |
| SMC5K64A-M3/H | Unidirectional version; same VWM/VBR/VC but conducts only in reverse direction | Requires external polarity management; not suitable for AC or floating lines without series diode | Choose only for DC-biased rails where forward conduction must be blocked. |
Compared with SMBJ64CA-M3/8A and SMC5K64A-M3/H, the SMC5K64CA-M3/H delivers 8.3× higher surge power handling and true bidirectional protection in the same SMC footprint - making it the sole choice for automotive-grade 12 V/24 V system inputs and industrial fieldbus interfaces demanding full-spectrum transient immunity.
Availability
SMC5K64CA-M3/H is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interfaces, telecom port protection, and consumer appliance motor drive designs requiring stable component supply and long-term lifecycle support.
Supply support for SMC5K64CA-M3/H 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, TVS, MOSFETs, and optoelectronics with emphasis on reliability and application-specific performance.
The SMC5K64CA-M3/H belongs to Vishay's TRANSZORB® family of high-power TVS diodes, engineered specifically for automotive, industrial, and telecom systems requiring robust, AEC-Q101-qualified surge protection with minimal clamping overshoot.
FAQ
What is the clamping voltage of the SMC5K64CA-M3/H at its rated peak pulse current?
The SMC5K64CA-M3/H has a maximum clamping voltage (VC) of 103 V at 48.5 A peak pulse current with a 10/1000 μs waveform. This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is the SMC5K64CA-M3/H suitable for automotive applications?
Yes, the SMC5K64CA-M3/H is AEC-Q101 qualified and rated for -55 °C to +175 °C junction temperature, making it suitable for under-hood and chassis-mounted automotive applications including body control modules, infotainment power supplies, and ADAS sensor interfaces. Its 5000 W surge rating supports ISO 7637-2 Pulse 5a/b compliance.
Does the SMC5K64CA-M3/H have polarity markings?
No, the SMC5K64CA-M3/H is a bidirectional TVS diode and carries no cathode band or polarity marking on its SMC (DO-214AB) package. Its symmetrical construction allows installation without orientation concern - ideal for protecting AC-coupled lines, differential buses, or floating grounds where polarity reversal may occur.
What is the thermal resistance of the SMC5K64CA-M3/H, and how does it affect layout?
The SMC5K64CA-M3/H has a junction-to-ambient thermal resistance (RthJA) of 90 °C/W when mounted on a standard FR4 PCB per JEDEC 51-2A. This value guides copper pour sizing and thermal relief design: larger pads and internal ground planes reduce effective RthJA, enabling higher surge repetition rates without exceeding TJ max. of 175 °C.
How does the SMC5K64CA-M3/H compare to unidirectional TVS diodes like SMC5K64A-M3/H?
The SMC5K64CA-M3/H provides bidirectional clamping, while SMC5K64A-M3/H clamps only in reverse bias. This makes the SMC5K64CA-M3/H appropriate for AC signals, floating references, or systems where voltage polarity reversal is possible - whereas SMC5K64A-M3/H requires careful DC biasing and adds complexity in bidirectional paths.
SMC5K64CA-M3/H 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):
- 48.5A
- Power - Peak Pulse:
- 5000W (5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SMC5K64CA-M3/H FAQ
1.How can I place an order for SMC5K64CA-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMC5K64CA-M3/H 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 SMC5K64CA-M3/H reliable?
The price and inventory of SMC5K64CA-M3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMC5K64CA-M3/H is usually 5 days.
3.What payment methods are accepted for SMC5K64CA-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMC5K64CA-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMC5K64CA-M3/H?
SMC5K64CA-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMC5K64CA-M3/H 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 SMC5K64CA-M3/H?
For technical support, including SMC5K64CA-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMC5K64CA-M3/H requirements.
6.How does Aetrix verify that SMC5K64CA-M3/H is sourced from the original manufacturer or authorized distributors?
All SMC5K64CA-M3/H 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 SMC5K64CA-M3/H meets industry standards.
7.What is the process for return or replacement of SMC5K64CA-M3/H?
All SMC5K64CA-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMC5K64CA-M3/H, 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 SMC5K64CA-M3/H part is unused and in its original packaging.
Return procedure for SMC5K64CA-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMC5K64CA-M3/H Tags
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