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Vishay General Semiconductor - Diodes Division SMCG64A-E3/57T
- Part No.:
- SMCG64A-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG64A-E3/57T.pdf
- Description:
- TVS DIODE 64VWM 103VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,798
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Product details
Overview
SMCG64A-E3/57T from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMCG (DO-215AB) package, featuring 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 103 V maximum clamping voltage (VC). It protects MOSFETs and ICs in automotive power electronics against inductive switching transients.
For engineers reviewing the SMCG64A-E3/57T datasheet, SMCG64A-E3/57T pinout, SMCG64A-E3/57T application, or SMCG64A-E3/57T equivalent, this device is selected for high-energy surge immunity in AEC-Q101-qualified 12 V/24 V vehicle subsystems where low clamping voltage, fast response (<1 ns), and MSL Level 1 reflow compatibility are critical.
Technical Context
The SMCG64A-E3/57T operates as a unidirectional avalanche diode with glass-passivated junction, designed to clamp transient overvoltages before they damage downstream components. Its 103 V clamping voltage at 14.6 A ensures robust protection margin above 64 V system rail while maintaining safe stress on 80 V-rated MOSFETs.
Thermal performance is defined by RθJA = 75 °C/W and RθJL = 15 °C/W, enabling reliable operation up to TJ = 150 °C when mounted on 8.0 mm × 8.0 mm copper pads. The device meets AEC-Q101 qualification and UL 497B recognition (QVGQ2, E136766) for automotive use.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 64 V - Maximum continuous reverse operating voltage; sets upper limit of normal system rail without leakage activation. |
| VBR (min/max) | 71.1 V / 78.6 V at 1 mA - Ensures consistent avalanche initiation across production lots; guarantees turn-on before VC exceeds protected device rating. |
| VC @ IPPM | 103 V at 14.6 A (10/1000 µs) - Clamping voltage defines worst-case stress on protected circuit; enables use with 80 V MOSFETs (20% margin). |
| PPPM | 1500 W - Peak transient energy handling capacity; supports ISO 7637-2 Pulse 1/2a/5a compliance in 12 V systems. |
| ID @ VWM | 1.0 µA - Ultra-low reverse leakage preserves battery drain budget in always-on automotive modules. |
| TJ max. | +150 °C - Enables under-hood deployment in engine control units and body controllers without derating. |
| Package | SMCG (DO-215AB) - Low-profile SMD outline optimized for automated placement and thermal pad coupling; meets J-STD-020 MSL Level 1. |
Pinout & Package
SMCG64A-E3/57T uses the SMCG (DO-215AB) surface-mount package: 2-terminal gull-wing leaded case with cathode band marking. Leads are matte tin plated, solderable per J-STD-002 and JESD 22-B102, and qualified to JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry during forward conduction; connected to system ground or low-side reference in unidirectional TVS configuration. | Provides return path for surge current; must be routed to lowest-impedance ground plane to minimize clamping overshoot. |
| Cathode | Protected line connection; marked with band; reverse-biased during normal operation. | Connected directly to the node requiring protection (e.g., MOSFET drain or IC supply pin); determines polarity of suppression action. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD; eliminates need for additional qualification testing in Tier-1 designs. |
| UL 497B recognized (QVGQ2, E136766) | Meets safety requirements for telecom and industrial signal-line protectors; simplifies end-equipment certification. |
| Glass passivated junction | Ensures stable VBR over lifetime and humidity exposure; prevents parameter drift in humid under-hood environments. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without baking; reduces manufacturing complexity and cost. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 16750-2 load dump edges), improving protection fidelity. |
Applications
| Automotive Engine Control Unit (ECU) | Industrial Motor Drive IGBT Gate Protection |
|---|---|
Use Scenario: Suppresses load dump and alternator ripple transients on 12 V power rails feeding microcontroller and sensor interfaces. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VCC and GND, clamping surges within 1 ns to prevent latch-up or gate oxide damage. Use Value: 103 V clamping voltage provides 23 V margin above 80 V MOSFET VDS(max), ensuring safe operation during ISO 7637-2 Pulse 5a events. |
Use Scenario: Protects IGBT gate-emitter terminals from Miller-induced voltage spikes during high-dI/dt switching in servo drives. IC Role / Device Role / Timing Role: Bidirectional-capable variant not used; SMCG64A-E3/57T applied as unidirectional clamp from gate to emitter with cathode tied to gate. Use Value: 1.0 µA leakage at 64 V avoids false triggering of gate drivers while maintaining sub-100 ns response to >1 kV/µs transients. |
| Telecom Power Supply Input Stage | Consumer Appliance Main Board Surge Protection |
Use Scenario: Shields AC-DC converter primary-side controller ICs from lightning-induced surges coupled via input lines. IC Role / Device Role / Timing Role: Mounted across bulk capacitor terminals to clamp differential-mode transients before they reach PWM controller. Use Value: 1500 W PPPM rating sustains multiple 10/1000 µs surges per UL 497B without degradation, supporting 20-year field life. |
Use Scenario: Guards microcontroller I/O pins and relay driver outputs against ESD and inductive kickback from solenoid valves. IC Role / Device Role / Timing Role: Placed at board edge connectors and relay coil flyback paths to divert surge current away from logic-level traces. Use Value: DO-215AB footprint allows dense layout with minimal trace inductance; 75 °C/W RθJA enables thermal stability on FR-4 without heatsinks. |
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 (Vishay) | Same VWM/VBR/VC specs but in SMA (DO-214AC) package; 100 W lower PPPM (1400 W); RθJA = 85 °C/W. | Limited to lower-energy transients (e.g., IEC 61000-4-2 ESD only); unsuitable for ISO 7637-2 Pulse 5a in automotive. | Select when board space permits larger SMA footprint and surge energy is below 1.4 kW. |
| 1.5KE68A (ON Semiconductor) | Through-hole DO-201 package; same 64 V VWM but higher VC = 118 V; 1500 W PPPM; no AEC-Q101 or UL recognition. | Requires wave soldering; lacks automotive qualification and safety certification; higher clamping increases risk to 80 V MOSFETs. | Use only in cost-sensitive industrial non-automotive designs where certifications are not required. |
Compared with SMAJ64A-E3/57T and 1.5KE68A, SMCG64A-E3/57T delivers superior thermal performance (RθJA = 75 °C/W), automotive qualification, and safety recognition-enabling compact, high-reliability protection in space-constrained AEC-Q101-compliant systems without compromising clamping margin or surge endurance.
Availability
SMCG64A-E3/57T is available at Aetrix Electronics and suitable for automotive engine control units, industrial motor drives, telecom power supplies, and consumer appliance main boards requiring stable component supply with full AEC-Q101 and UL compliance documentation.
Supply support for SMCG64A-E3/57T 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, efficiency, and qualification for harsh environments.
The SMCG series was developed specifically for high-power, surface-mount transient suppression in automotive and industrial applications demanding AEC-Q101 qualification, low clamping voltage, and MSL Level 1 reflow compatibility.
FAQ
What is the clamping voltage of SMCG64A-E3/57T and why does it matter?
The SMCG64A-E3/57T has a maximum clamping voltage (VC) of 103 V at 14.6 A (10/1000 µs waveform). This value represents the highest voltage that appears across the protected circuit during a surge event. It matters because it must remain safely below the absolute maximum voltage rating of downstream components-such as 80 V MOSFETs-to prevent catastrophic failure. The 23 V margin provided by SMCG64A-E3/57T's 103 V VC enables robust design margin in 12 V/24 V automotive systems.
Is SMCG64A-E3/57T qualified for automotive applications?
Yes, SMCG64A-E3/57T is AEC-Q101 qualified, meaning it has passed rigorous stress tests including temperature cycling, high-temperature reverse bias (HTRB), and ESD. The "HE3" suffix denotes AEC-Q101 qualification, and SMCG64A-E3/57T carries the same qualification as HE3 variants per Vishay's ordering matrix. This makes SMCG64A-E3/57T suitable for engine control units, body control modules, and other under-hood automotive electronics.
What is the package type and mounting compatibility of SMCG64A-E3/57T?
SMCG64A-E3/57T uses the SMCG (DO-215AB) surface-mount package-a low-profile gull-wing outline with 2.41 mm lead width and 7.87 mm body length. It is compatible with standard SMT pick-and-place equipment and qualifies for MSL Level 1 per J-STD-020, allowing exposure to peak reflow temperatures up to 260 °C without baking. The package is designed for thermal coupling to 8.0 mm × 8.0 mm copper pads per terminal.
Does SMCG64A-E3/57T meet UL safety standards?
Yes, SMCG64A-E3/57T is UL 497B recognized under file number E136766 for both unidirectional and bidirectional configurations. This certification confirms its suitability as a protector in telecommunications and industrial signal-line applications where safety agency approval is mandatory. The recognition covers surge withstand, flammability (UL 94 V-0 molding compound), and long-term reliability under repeated transient stress.
What is the maximum operating junction temperature for SMCG64A-E3/57T?
The maximum operating junction temperature (TJ max.) for SMCG64A-E3/57T is +150 °C. This rating is validated per Vishay's thermal characterization and enables reliable operation in high-ambient environments such as engine compartments or enclosed industrial enclosures. When mounted per recommended pad layout (0.31" × 0.31" copper pads), the device maintains safe thermal margins even at full 6.5 W steady-state power dissipation.
SMCG64A-E3/57T 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-E3/57T FAQ
1.How can I place an order for SMCG64A-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG64A-E3/57T 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-E3/57T reliable?
The price and inventory of SMCG64A-E3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG64A-E3/57T is usually 5 days.
3.What payment methods are accepted for SMCG64A-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG64A-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG64A-E3/57T?
SMCG64A-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG64A-E3/57T 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-E3/57T?
For technical support, including SMCG64A-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG64A-E3/57T requirements.
6.How does Aetrix verify that SMCG64A-E3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG64A-E3/57T 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-E3/57T meets industry standards.
7.What is the process for return or replacement of SMCG64A-E3/57T?
All SMCG64A-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG64A-E3/57T, 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-E3/57T part is unused and in its original packaging.
Return procedure for SMCG64A-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG64A-E3/57T Tags
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