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Vishay General Semiconductor - Diodes Division SMC5K64A-M3/H
- Part No.:
- SMC5K64A-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMC5K64A-M3/H.pdf
- Description:
- TVS DIODE 64VWM 103VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:1,695
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Product details
Overview
SMC5K64A-M3/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) in SMC (DO-214AB) package, designed for high-energy surge protection with 5000 W peak pulse power (10/1000 μs), 103 V clamping voltage at 48.5 A, and 71.1–78.6 V breakdown range. It protects MOSFETs, ICs, and sensor signal lines in automotive and industrial power electronics.
For engineers reviewing the SMC5K64A-M3/H datasheet, SMC5K64A-M3/H pinout, SMC5K64A-M3/H application, or SMC5K64A-M3/H equivalent, key selection criteria include unidirectional polarity, 64 V stand-off voltage, AEC-Q101 qualification status (not applicable to this variant), M3 halogen-free RoHS compliance, and SMC package thermal resistance of 90 °C/W.
Technical Context
This TVS diode operates as a clamping device that activates above its reverse stand-off voltage (VWM = 64 V) to limit transient overvoltages. Its low incremental surge resistance and fast response time ensure effective suppression of inductive switching spikes and lightning-induced surges on DC power rails and signal paths.
It delivers 5000 W peak pulse power under 10/1000 μs waveform and sustains 134 V clamping at 299 A under 8/20 μs waveform - critical for IEC 61000-4-5 level 4 compliance in industrial equipment. Junction temperature is rated from –55 °C to +150 °C, with thermal resistance junction-to-ambient at 90 °C/W on standard FR4 PCB.
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 occurs within this range at 1 mA test current, defining turn-on threshold |
| VC @ IPPM (10/1000 μs) | 103 V - clamps transients to ≤103 V when subjected to 48.5 A surge current |
| PPPM | 5000 W - peak pulse power handling capability per 10/1000 μs waveform, enabling robust ESD/EFT protection |
| TJ max | +150 °C - maximum junction temperature supports operation in under-hood automotive and industrial environments |
| RthJA | 90 °C/W - thermal resistance determines safe power derating on standard 2 oz. FR4 PCB layout |
| Polarity | Unidirectional - protects only against positive transients relative to cathode; color band denotes cathode |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, halogen-free and RoHS-compliant (M3 suffix). Cathode identified by molded band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current return path | Connected to ground or low-impedance reference; completes clamping loop during surge event |
| Cathode | Protected line connection | Connected to protected node (e.g., power rail or signal line); clamping occurs between cathode and anode |
Key Features
| Feature | Design Value |
|---|---|
| 5000 W peak pulse power (10/1000 μs) | Enables protection against high-energy transients such as load dump and inductive kick in 24 V systems |
| 103 V clamping at 48.5 A | Ensures downstream components see <105 V during worst-case surge, preserving 75 V-rated ICs |
| Unidirectional configuration | Prevents interference with normal DC bias while providing targeted positive-surge suppression |
| MSL Level 1, 260 °C reflow compatible | Supports standard lead-free SMT assembly without moisture sensitivity concerns |
| 30 kV HBM ESD rating | Meets IEC 61000-4-2 contact/air discharge requirements for front-end interface protection |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 24 V supply lines in body control modules from load dump and alternator transients. IC Role / Device Role / Timing Role: TVS clamping element placed between power input and ground, activated within nanoseconds of overvoltage onset. Use Value: Limits voltage to ≤103 V during 48.5 A surge, preventing damage to MCU power supplies and CAN transceivers rated for 75 V max. | Use Scenario: Shielding analog output lines of pressure sensors in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Unidirectional shunt protector on 0–10 V or 4–20 mA signal path, referenced to system ground. Use Value: Clamps EFT bursts to <105 V while maintaining <1 μA leakage at 64 V, preserving signal integrity and ADC accuracy. |
| Telecom DC Power Input Protection | Computer Peripheral USB Power Line Protection |
Use Scenario: Safeguarding 48 V DC inputs of PoE-powered network switches against lightning-induced surges. IC Role / Device Role / Timing Role: Primary surge clamp on main DC bus, coordinated with upstream fuses and secondary filtering. Use Value: Absorbs 5000 W pulses without degradation, meeting IEC 61000-4-5 Level 4 requirements for outdoor telecom infrastructure. | Use Scenario: Adding transient immunity to +5 V VBUS line in external SSD enclosures with USB 3.2 Gen 2 interface. IC Role / Device Role / Timing Role: Standoff-rated TVS on power rail, positioned upstream of USB controller and power delivery IC. Use Value: Withstands 30 kV HBM ESD events and limits clamping to 103 V, protecting USB PD controllers and NAND flash power domains. |
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 | Lower PPPM (400 W), same VWM (64 V), SMA package (smaller footprint, higher RthJA) | Suitable for lower-energy surges; not recommended for 24 V automotive load dump | Select SMC5K64A-M3/H when 5000 W surge handling and industrial-grade thermal performance are required. |
| 1.5KE68A | Higher VWM (68 V), through-hole DO-201 package, 5000 W rating, no M3/RoHS assurance | Requires PCB through-hole space; lacks surface-mount compatibility and modern compliance certifications | Choose SMC5K64A-M3/H for automated SMT production, halogen-free compliance, and SMC thermal profile. |
Compared with SMAJ64A and 1.5KE68A, the SMC5K64A-M3/H delivers identical 64 V standoff but with 12.5× higher surge power than SMAJ64A and superior manufacturability versus 1.5KE68A - making it optimal for high-reliability 24 V/48 V industrial and transportation systems requiring AEC-Q101-adjacent robustness.
Availability
SMC5K64A-M3/H is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, telecom power supplies, and computer peripheral designs requiring stable component supply and long-term obsolescence management.
Supply support for SMC5K64A-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 devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The SMC5KxxA series is part of Vishay's TRANSZORB® TVS platform, engineered for high-power transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where sustained surge immunity and thermal stability are critical.
FAQ
What is the breakdown voltage range of the SMC5K64A-M3/H?
The SMC5K64A-M3/H has a specified breakdown voltage (VBR) range of 71.1 V to 78.6 V at 1 mA test current, per the Vishay datasheet revision 09-Jan-2024. This ensures reliable turn-on behavior above the 64 V stand-off voltage while accommodating process variation across production lots. The SMC5K64A-M3/H maintains this specification across its full operating temperature range.
Is the SMC5K64A-M3/H AEC-Q101 qualified?
No, the SMC5K64A-M3/H is not AEC-Q101 qualified. Per Vishay documentation, AEC-Q101 qualification applies only to SMC5K10A through SMC5K20A with HM3 suffix (e.g., SMC5K20AHM3). The SMC5K64A-M3/H carries the M3 suffix indicating halogen-free and RoHS compliance, but not automotive qualification. Engineers requiring AEC-Q101 must select an HM3-part variant within the 10–20 V range.
What is the clamping voltage of the SMC5K64A-M3/H at its rated peak pulse current?
The SMC5K64A-M3/H clamps to a maximum of 103 V at its 10/1000 μs peak pulse current of 48.5 A, as specified in the Electrical Characteristics table. This clamping voltage defines the upper voltage limit imposed on protected circuitry during surge events and is measured under standardized waveform conditions defined in ANSI/IEEE C62.35.
Does the SMC5K64A-M3/H have bidirectional or unidirectional polarity?
The SMC5K64A-M3/H is a unidirectional TVS diode, meaning it conducts only during positive voltage transients relative to its cathode terminal. Polarity is indicated by a molded cathode band on the SMC (DO-214AB) package. This configuration prevents interference with normal DC bias while providing targeted suppression of positive-going surges on power or signal lines.
What package type and mounting compatibility does the SMC5K64A-M3/H use?
The SMC5K64A-M3/H uses the SMC (DO-214AB) surface-mount package with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. It is rated MSL Level 1 and supports lead-free reflow up to 260 °C peak, making it compatible with standard automated SMT assembly processes and IPC Class 3 board manufacturing.
SMC5K64A-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:
- 1
- Bidirectional Channels:
- -
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SMC5K64A-M3/H FAQ
1.How can I place an order for SMC5K64A-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMC5K64A-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 SMC5K64A-M3/H reliable?
The price and inventory of SMC5K64A-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 SMC5K64A-M3/H is usually 5 days.
3.What payment methods are accepted for SMC5K64A-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMC5K64A-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMC5K64A-M3/H?
SMC5K64A-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMC5K64A-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 SMC5K64A-M3/H?
For technical support, including SMC5K64A-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMC5K64A-M3/H requirements.
6.How does Aetrix verify that SMC5K64A-M3/H is sourced from the original manufacturer or authorized distributors?
All SMC5K64A-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 SMC5K64A-M3/H meets industry standards.
7.What is the process for return or replacement of SMC5K64A-M3/H?
All SMC5K64A-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMC5K64A-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 SMC5K64A-M3/H part is unused and in its original packaging.
Return procedure for SMC5K64A-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMC5K64A-M3/H Tags
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