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Vishay General Semiconductor - Diodes Division SMC5K64CA-M3/I
- Part No.:
- SMC5K64CA-M3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMC5K64CA-M3/I.pdf
- Description:
- TVS DIODE 64VWM 103VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,117
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Product details
Overview
SMC5K64CA-M3/I from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection with 5000 W peak pulse power (10/1000 μs), 64 V stand-off voltage (VWM), and 103 V maximum clamping voltage at 48.5 A IPPM - deployed on power rails and signal lines of automotive ECUs and industrial motor drives.
For engineers reviewing the SMC5K64CA-M3/I datasheet, SMC5K64CA-M3/I pinout, SMC5K64CA-M3/I application, or SMC5K64CA-M3/I equivalent, key selection criteria include its AEC-Q101 qualification, bidirectional polarity, 175 °C max junction temperature, and compatibility with 13" tape-and-reel automated assembly.
Technical Context
This TVS diode operates as a voltage-clamping device across bidirectional signal or power paths, responding to transients within picoseconds via avalanche breakdown. Its clamping behavior is defined by a 71.1–78.6 V breakdown voltage range (VBR) at 1 mA test current and a low incremental surge resistance that sustains 48.5 A peak pulse current under 10/1000 μs waveform.
The device meets IEC 61000-4-2 ESD immunity up to 30 kV (contact/air), complies with UL 497B (E136766), and is rated MSL Level 1 with 260 °C lead-free reflow tolerance - confirming suitability for automotive-grade surface-mount deployment without derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 64 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 71.1 V / 78.6 V at 1 mA - defines reliable avalanche onset window for predictable clamping threshold |
| VC @ IPPM | 103 V at 48.5 A (10/1000 μs) - actual clamped voltage seen by protected circuit during worst-case surge |
| 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 operation in under-hood automotive environments and high-ambient industrial enclosures |
| ESD Rating | 30 kV HBM (contact & air) - exceeds IEC 61000-4-2 Level 4 for robust system-level ESD resilience |
| Package | SMC (DO-214AB) - industry-standard 2-pin surface-mount outline with 90 °C/W RthJA for thermal management on FR4 PCBs |
Pinout & Package
SMC (DO-214AB) package: molded epoxy case with matte tin-plated leads, no cathode band (bidirectional), compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (reverse bias) | Accepts surge current during positive half-cycle of bidirectional transient; tied to line being protected |
| Cathode | Transient current entry (forward bias) | Accepts surge current during negative half-cycle; symmetric conduction ensures equal clamping in both directions |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress-test requirements including HTOL, TCT, and ESD - supports PPAP documentation |
| UL 497B recognized (E136766) | Meets safety standards for primary/secondary circuit protection in telecom and industrial power supplies |
| Halogen-free & RoHS-compliant (M3 suffix) | Complies with environmental regulations and enables use in green manufacturing without material declaration exceptions |
| MSL Level 1, 260 °C peak | Supports standard lead-free reflow profiles without preconditioning - reduces production floor handling complexity |
| Low RthJM (4.0 °C/W) | Enables efficient heat transfer to PCB copper pour or heatsink pad, critical for sustained surge duty cycles |
Applications
| Automotive Power Distribution | Industrial Motor Drive Inputs |
|---|---|
Use Scenario: Protection of 12 V/24 V battery-fed control modules against load dump and alternator transients per ISO 7637-2. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed directly at connector entry point, shunting surge energy to ground before reaching MCU or CAN transceiver. Use Value: Clamps to 103 V at 48.5 A, limiting downstream voltage stress below 120 V - preserving 100 V-rated MOSFETs and logic ICs. | Use Scenario: Input-stage surge suppression on AC/DC power supplies feeding servo drive controllers in factory automation. IC Role / Device Role / Timing Role: Bidirectional transient absorber across DC bus lines, triggered by inductive kickback from contactor switching or regenerative braking. Use Value: Withstands 5000 W pulses and 175 °C junction temperature, enabling uninterrupted operation in 60 °C ambient cabinet environments. |
| Telecom Line Interface | Consumer Sensor Signal Lines |
Use Scenario: Secondary-side protection on Ethernet PHY or RS-485 transceivers exposed to lightning-induced surges in outdoor base stations. IC Role / Device Role / Timing Role: Fast-response (sub-nanosecond) clamping element placed adjacent to transceiver pins, referenced to local ground plane. Use Value: 30 kV HBM ESD rating and 103 V clamping ensure signal integrity retention and prevent latch-up in ±15 V tolerant PHYs. | Use Scenario: ESD and EFT protection on analog outputs of MEMS pressure sensors in smart home HVAC units. IC Role / Device Role / Timing Role: Low-capacitance (typ. 100 pF at 0 V) bidirectional clamp on 0–5 V output lines, minimizing signal distortion. Use Value: 64 V VWM allows full-scale sensor swing while maintaining margin above 5.5 V supply - avoids false triggering during normal operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ64CA-E3/5A (Vishay) | Lower PPPM (400 W), SMA package (smaller footprint, higher RthJA = 110 °C/W) | Suitable for space-constrained consumer PCBs but not for automotive load-dump duty | Select when board area is critical and surge energy is limited to IEC 61000-4-4 EFT only |
| 1.5KE68CA (Littelfuse) | Higher VBR (75.6–83.6 V), through-hole DO-201 package, non-AEC-Q101 | Used in legacy industrial power supplies where reflow compatibility is not required | Choose for cost-sensitive, non-automotive designs where manual assembly or wave soldering is used |
Compared with SMAJ64CA-E3/5A and 1.5KE68CA, the SMC5K64CA-M3/I delivers 12.5× higher peak pulse power in an AEC-Q101-qualified SMC package - making it the only option among the three validated for under-hood automotive surge immunity per ISO 7637-2.
Availability
SMC5K64CA-M3/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial motor drives, telecom infrastructure equipment, and consumer sensor modules requiring stable component supply across multi-year production cycles.
Supply support for SMC5K64CA-M3/I 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, power efficiency, and automotive-grade qualification.
The SMC5KxxCA family was engineered specifically for high-energy transient suppression in harsh-environment applications - targeting automotive power systems, industrial automation, and telecom infrastructure where failure modes must be mitigated without compromising signal integrity or thermal performance.
FAQ
What is the clamping voltage of the SMC5K64CA-M3/I at its rated peak pulse current?
The SMC5K64CA-M3/I has a maximum clamping voltage (VC) of 103 V at 48.5 A peak pulse current under the 10/1000 μs waveform. This value is measured per Fig. 3 in the Vishay datasheet (Doc. #87024) and defines the upper voltage limit imposed on protected circuitry during a standardized surge event - critical for ensuring downstream components remain within their absolute maximum ratings.
Is the SMC5K64CA-M3/I suitable for automotive applications?
Yes, the SMC5K64CA-M3/I is AEC-Q101 qualified and explicitly rated for automotive use. It meets requirements for temperature cycling, high-temperature operating life, and ESD immunity per IEC 61000-4-2 (30 kV). Its 175 °C maximum junction temperature and MSL Level 1 reflow rating make it appropriate for engine control units, body electronics, and ADAS power domains where reliability under thermal and electrical stress is mandatory.
What does the "M3" suffix indicate in SMC5K64CA-M3/I?
The "M3" suffix in SMC5K64CA-M3/I denotes halogen-free, RoHS-compliant construction with industrial-grade qualification. It confirms compliance with JEDEC JESD201 Class 2 whisker resistance, J-STD-002 solderability, and UL 94 V-0 flammability. The "I" indicates packaging in 13" diameter plastic tape and reel (3500 units per reel), optimized for high-volume SMT placement.
How does the bidirectional nature of the SMC5K64CA-M3/I affect its circuit placement?
The SMC5K64CA-M3/I has no cathode band and conducts identically in both polarities, allowing placement across any two points needing symmetrical overvoltage protection - such as differential signal pairs (RS-485), AC lines, or ungrounded DC buses. This eliminates orientation concerns during layout and assembly, reducing manufacturing errors and enabling reuse across complementary signal paths without redesign.
What is the thermal resistance profile of the SMC5K64CA-M3/I, and how does it impact PCB layout?
The SMC5K64CA-M3/I has RthJA = 90 °C/W (JEDEC 51-2A, FR4, 2 oz. copper) and RthJM = 4.0 °C/W (JEDEC 51-14 TDIM). To maintain safe junction temperatures during repeated surges, designers must provide ≥200 mm² of 2 oz. copper pour connected to both terminals - especially critical in automotive applications where ambient temperatures exceed 85 °C and surge repetition rates may be high.
SMC5K64CA-M3/I 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/I FAQ
1.How can I place an order for SMC5K64CA-M3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMC5K64CA-M3/I 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/I reliable?
The price and inventory of SMC5K64CA-M3/I 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/I is usually 5 days.
3.What payment methods are accepted for SMC5K64CA-M3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMC5K64CA-M3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMC5K64CA-M3/I?
SMC5K64CA-M3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMC5K64CA-M3/I 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/I?
For technical support, including SMC5K64CA-M3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMC5K64CA-M3/I requirements.
6.How does Aetrix verify that SMC5K64CA-M3/I is sourced from the original manufacturer or authorized distributors?
All SMC5K64CA-M3/I 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/I meets industry standards.
7.What is the process for return or replacement of SMC5K64CA-M3/I?
All SMC5K64CA-M3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMC5K64CA-M3/I, 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/I part is unused and in its original packaging.
Return procedure for SMC5K64CA-M3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMC5K64CA-M3/I Tags
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