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Vishay General Semiconductor - Diodes Division SMCG64A-M3/57T
- Part No.:
- SMCG64A-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG64A-M3/57T.pdf
- Description:
- TVS DIODE 64VWM 103VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,553
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Product details
Overview
SMCG64A-M3/57T from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) 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), 14.6 A peak pulse current (IPPM), and clamps to ≤103 V at rated surge. It is widely deployed in automotive powertrain control units to protect CAN transceiver inputs against load dump and inductive switching transients.
For engineers reviewing the SMCG64A-M3/57T datasheet, SMCG64A-M3/57T pinout, SMCG64A-M3/57T application, or SMCG64A-M3/57T equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), halogen-free RoHS compliance (M3 suffix), and real-world protection use cases - all validated against Vishay Document 88457 (Rev. 09-Jan-2024).
Technical Context
This TVS diode operates as a clamping device in parallel with protected circuitry, entering avalanche conduction when reverse voltage exceeds VBR. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM), while the DO-215AB package enables high surge current handling (200 A IFSM) with minimal parasitic inductance.
Designed for unidirectional operation, SMCG64A-M3/57T exhibits fast response time (<1 ns), low incremental surge resistance, and meets MSL Level 1 per J-STD-020 (260 °C reflow peak). It is qualified to AEC-Q101 for automotive under-hood applications and supports automated SMT placement via matte tin-plated gull-wing leads.
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 ICs. |
| VBR (min/max) | 71.1 V / 78.6 V at IT = 1 mA - Confirmed breakdown threshold ensuring predictable turn-on during transients. |
| VC @ IPPM | ≤103 V at 14.6 A - Clamping voltage under 10/1000 µs surge; determines maximum stress on downstream components. |
| PPPM | 1500 W - Peak pulse power handling capability; validates suitability for ISO 7637-2 Pulse 5a/b load-dump events. |
| RθJA | 75 °C/W - Junction-to-ambient thermal resistance on 8 mm × 8 mm copper pads; informs PCB thermal design requirements. |
| IFSM | 200 A - Non-repetitive forward surge rating (8.3 ms half-sine); supports protection during high-energy inductive switch-offs. |
| TJ max. | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments. |
Pinout & Package
SMCG64A-M3/57T uses the SMCG (DO-215AB) surface-mount package: gull-wing leads, 7.87 mm × 9.64 mm footprint, 1.90 mm height, with cathode band marking on the anode-side terminal. The package meets UL 94 V-0 flammability and supports J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to ground or low-side reference in unidirectional configuration | Provides return path during clamping; must be routed to low-impedance ground plane to minimize voltage overshoot. |
| Cathode | Current exit point in forward bias; marked by band; connected to protected line (e.g., CAN_H) | Defines polarity-sensitive connection; reverse connection disables clamping function and risks device failure. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - required for engine control modules. |
| Halogen-free & RoHS compliant (M3) | Meets JEDEC JESD201 Class 2 whisker resistance and global environmental regulations without compromising surge performance. |
| Glass-passivated junction | Ensures stable VBR over lifetime and temperature; eliminates parameter drift seen in epoxy-passivated alternatives. |
| Low RθJL (15 °C/W) | Enables efficient heat transfer from junction to lead; critical for sustaining multiple surge events without thermal runaway. |
| MSL Level 1 rating | Allows unlimited floor life and single reflow at 260 °C peak - simplifies manufacturing and eliminates baking requirements. |
Applications
| Automotive Powertrain ECUs | Industrial Motor Drives |
|---|---|
Use Scenario: Protection of 12 V CAN FD transceivers against load dump (ISO 7637-2 Pulse 5) and alternator ripple in engine control units. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed directly at connector interface to limit transient voltage before it reaches transceiver input pins. Use Value: Limits peak voltage to ≤103 V during 1500 W surges, preventing latch-up or permanent damage to CAN PHY circuitry operating at 5 V logic levels. |
Use Scenario: Safeguarding gate drivers and microcontroller I/O lines from flyback voltage spikes generated by IGBT switching in HVAC compressors. IC Role / Device Role / Timing Role: Parallel-connected transient suppressor across DC bus sense lines and isolated feedback paths. Use Value: Responds in <1 ns to clamp 600 V spikes to <103 V, preserving signal integrity and avoiding false triggering of overvoltage shutdown circuits. |
| Telecom Base Station Power Supplies | Consumer Appliance Control Boards |
Use Scenario: Input-stage protection for 48 V telecom rectifier modules exposed to lightning-induced surges on AC mains input. IC Role / Device Role / Timing Role: Primary-level TVS on secondary-side DC output rails feeding FPGA and PMIC regulators. Use Value: Absorbs 1500 W pulses without degradation, maintaining VWM = 64 V stability across -55 °C to +150 °C ambient - critical for outdoor cabinet deployments. |
Use Scenario: Surge suppression on user-interface buttons and touch sensor lines in smart washing machines subjected to ESD events per IEC 61000-4-2. IC Role / Device Role / Timing Role: Localized TVS at front-panel connector, decoupled from main MCU power domain. Use Value: Delivers <1.0 µA leakage at 64 V, eliminating false wake-ups; halogen-free (M3) compliance satisfies regional eco-labeling mandates. |
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-E3/57T | Same VWM (64 V) and PPPM (400 W), but lower peak power (400 W vs. 1500 W); SMA (DO-214AC) package, smaller footprint (4.3 × 2.6 mm) | Limited to lower-energy transients (e.g., ESD only); unsuitable for load dump or motor flyback | Select when space-constrained and surge energy is ≤400 W; verify clamping voltage (VC = 103 V same) and thermal derating. |
| SMCJ64A-M3/57T | Identical VWM (64 V), VBR (71.1–78.6 V), and PPPM (1500 W); larger SMC (DO-214AB) package (7.11 × 6.22 mm), higher RθJA (50 °C/W) | Better thermal dissipation on minimal copper; less suitable for dense layouts due to larger body size | Choose when board layout allows larger footprint and enhanced thermal margin is prioritized over space efficiency. |
Compared with SMAJ64A-E3/57T, SMCG64A-M3/57T delivers 3.75× higher surge energy handling in a compact DO-215AB form factor; versus SMCJ64A-M3/57T, it achieves identical electrical protection with 23% smaller PCB area but requires tighter thermal pad design due to higher RθJA.
Availability
SMCG64A-M3/57T is available at Aetrix Electronics and suitable for automotive powertrain systems, industrial motor drives, telecom infrastructure power supplies, and consumer appliance control boards requiring stable component supply and AEC-Q101-compliant surge protection.
Supply support for SMCG64A-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and automotive-grade qualification.
The SMCG series is engineered specifically for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where AEC-Q101 compliance and 1500 W surge capability are mandatory.
FAQ
What is the clamping voltage of SMCG64A-M3/57T under a 10/1000 µs surge?
The SMCG64A-M3/57T clamps to a maximum of 103 V when subjected to its rated peak pulse current of 14.6 A (10/1000 µs waveform), as specified in Vishay Document 88457. This value is measured at the device terminals under standard test conditions (25 °C, mounted on 8.0 mm × 8.0 mm copper pads), and represents the upper voltage limit imposed on protected circuitry during transient events. Designers must ensure downstream components tolerate this clamped voltage.
Is SMCG64A-M3/57T suitable for bidirectional transient protection?
No, SMCG64A-M3/57T is a unidirectional TVS diode, indicated by the "A" suffix and absence of "CA" in its part number. It conducts only in reverse bias above VBR and blocks forward current beyond VF ≈ 3.5 V at 100 A. For bidirectional protection, Vishay specifies variants like SMCG64CA-M3/57T, which have symmetrical breakdown in both directions and no polarity marking. Using SMCG64A-M3/57T in bidirectional configurations will result in improper clamping or device failure.
Does SMCG64A-M3/57T meet automotive qualification standards?
Yes, SMCG64A-M3/57T is AEC-Q101 qualified, as confirmed in the Vishay datasheet (Document 88457, page 1, "FEATURES" section and page 3, "THERMAL CHARACTERISTICS" note). This qualification covers stress tests including high-temperature operating life, temperature cycling, and ESD, validating its suitability for automotive powertrain, body electronics, and chassis applications. The M3 suffix further confirms halogen-free, RoHS-compliant construction required by Tier 1 suppliers.
What is the meaning of the "M3/57T" suffix in SMCG64A-M3/57T?
The "M3" suffix denotes halogen-free, RoHS-compliant construction meeting JEDEC JESD201 Class 2 whisker resistance, while "57T" specifies packaging in 7-inch plastic tape-and-reel format with 850 units per reel. This ordering code aligns with Vishay's standardized nomenclature in the "ORDERING INFORMATION" table (page 3 of Document 88457) and ensures traceable, industrial-grade sourcing without lead contamination or outgassing concerns in reflow processes.
How does the thermal resistance of SMCG64A-M3/57T affect PCB layout?
SMCG64A-M3/57T has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 0.31″ × 0.31″ (8.0 mm × 8.0 mm) copper pads per terminal, as defined in Vishay Document 88457. To maintain TJ ≤ 150 °C during repeated 1500 W surges, designers must allocate sufficient copper area and consider thermal vias beneath the pads. Reducing pad size increases RθJA, risking thermal runaway - so the recommended layout is mandatory for rated performance, not optional.
SMCG64A-M3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-215AB, SMC Gull Wing
- 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):
- 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 (SMCG)
SMCG64A-M3/57T FAQ
1.How can I place an order for SMCG64A-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG64A-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 SMCG64A-M3/57T reliable?
The price and inventory of SMCG64A-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 SMCG64A-M3/57T is usually 5 days.
3.What payment methods are accepted for SMCG64A-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG64A-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG64A-M3/57T?
SMCG64A-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG64A-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 SMCG64A-M3/57T?
For technical support, including SMCG64A-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG64A-M3/57T requirements.
6.How does Aetrix verify that SMCG64A-M3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG64A-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 SMCG64A-M3/57T meets industry standards.
7.What is the process for return or replacement of SMCG64A-M3/57T?
All SMCG64A-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG64A-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 SMCG64A-M3/57T part is unused and in its original packaging.
Return procedure for SMCG64A-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG64A-M3/57T Tags
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