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Vishay General Semiconductor - Diodes Division SMCG64CA-E3/57T
- Part No.:
- SMCG64CA-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG64CA-E3/57T.pdf
- Description:
- TVS DIODE 64VWM 103VC DO215AB
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMCG64CA-E3/57T from Vishay General Semiconductor is a bidirectional 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), clamping voltage of 103 V at 14.6 A IPPM, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SMCG64CA-E3/57T datasheet, SMCG64CA-E3/57T pinout, SMCG64CA-E3/57T application, or SMCG64CA-E3/57T equivalent, key selection criteria include bidirectional clamping behavior, low clamping ratio (VC/VWM ≈ 1.61), MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, delivering identical electrical characteristics in forward and reverse directions - critical for protecting AC-coupled signal lines or differential buses. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1 ns), while the DO-215AB package supports high surge current handling without thermal runaway.
The device complies with ANSI/IEEE C62.35 for surge suppression and meets UL 497B recognition (QVGQ2, E136766). Its 75 °C/W junction-to-ambient thermal resistance and 150 °C maximum junction temperature enable reliable operation in automotive under-hood and industrial control environments when mounted per recommended pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 64 V - Maximum continuous reverse stand-off voltage before significant leakage; defines operating margin below clamping threshold. |
| VBR (min/max) | 71.1 V / 78.6 V at 1 mA - Ensures predictable breakdown onset across production lot; tight tolerance supports consistent system-level protection design. |
| VC @ IPPM | 103 V at 14.6 A - Clamping voltage during 10/1000 µs surge; limits downstream voltage stress to safe levels for 3.3 V or 5 V logic interfaces. |
| PPPM | 1500 W - Peak pulse power rating; enables survival of high-energy transients like ISO 7637-2 Pulse 5a (load dump) in automotive 12 V systems. |
| ID @ VWM | ≤1.0 µA - Ultra-low reverse leakage at rated stand-off; prevents signal integrity degradation in high-impedance sensor or communication lines. |
| TJ max. | +150 °C - Supports extended temperature operation in engine control units, motor drives, and industrial PLC I/O modules. |
| AEC-Q101 | Qualified - Validated for automotive applications including engine management, ADAS sensors, and infotainment power rails. |
Pinout & Package
Package: SMCG (DO-215AB) - surface-mount, gull-wing leaded case with matte tin-plated terminals, compliant with J-STD-002 and JESD 22-B102 solderability standards. No polarity marking on bidirectional variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Terminal A | One side of symmetrical bidirectional junction; connects to protected line (e.g., CAN_H or RS-485 A). |
| Cathode | Terminal K | Other side of symmetrical bidirectional junction; connects to protected line (e.g., CAN_L or RS-485 B); no band marking. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and IPPM in both directions - eliminates need for polarity-aware layout in differential or AC signal paths. |
| Glass passivated junction | Stable leakage and breakdown characteristics over lifetime - ensures long-term reliability in harsh thermal cycling environments. |
| MSL Level 1 rating | Peak reflow temperature up to 260 °C - compatible with standard lead-free SMT assembly without baking or special handling. |
| Low incremental surge resistance | Enables tighter VC/VBR ratio (~1.45) - improves protection margin versus competing TVS diodes with higher clamping overshoot. |
| UL 497B recognition | QVGQ2 file E136766 - satisfies regulatory requirements for telecom and industrial surge protection subsystem certification. |
Applications
| Automotive CAN Bus Protection | Industrial RS-485 Transceiver Protection |
|---|---|
|
Use Scenario: Protecting CAN_H/CAN_L differential pair against load dump, jump-start, and ESD events in vehicle body control modules. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector interface to shunt surge energy before it reaches the CAN transceiver IC. Use Value: Maintains signal integrity during 10/1000 µs surges up to 1500 W while holding differential voltage within ±103 V - preventing transceiver latch-up or damage. |
Use Scenario: Safeguarding RS-485 driver/receiver inputs in factory automation PLCs exposed to motor switching noise and ground potential differences. IC Role / Device Role / Timing Role: Symmetrical TVS across A/B lines to suppress common-mode and differential-mode transients without disrupting DC bias or data timing. Use Value: Delivers sub-1 ns response and ≤1.0 µA leakage at 64 V - preserving bus idle state stability and enabling >1 Mbps data rates without added jitter. |
| Consumer USB Type-C ESD Protection | Automotive Sensor Signal Line Protection |
|
Use Scenario: Secondary-level ESD protection on USB Type-C CC and SBU lines where primary protection resides upstream. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp absorbing ±15 kV contact discharge (IEC 61000-4-2) without distorting high-speed signaling. Use Value: 64 V VWM provides headroom above USB PD 20 V operation; 103 V VC ensures downstream PHY remains within absolute maximum ratings. |
Use Scenario: Shielding analog outputs (e.g., 4–20 mA current loop or 0–5 V sensor voltage) in automotive pressure or temperature sensors from ignition coil coupling. IC Role / Device Role / Timing Role: Standoff-limited clamp placed between sensor output and harness connector to prevent voltage excursion beyond ADC input range. Use Value: 1.0 µA leakage at 64 V avoids loading precision analog circuits; AEC-Q101 qualification guarantees performance across -40 °C to +125 °C ambient. |
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 | Unidirectional; same VWM and PPPM but lacks bidirectional symmetry; lower IPPM (13.7 A vs. 14.6 A). | Requires polarity-aware placement; unsuitable for differential or AC-coupled signals without external circuitry. | Select only when unidirectional clamping suffices and board space allows discrete cathode/anode routing. |
| SMCJ64CA | Same bidirectional function and VWM, but in larger DO-214AB (SMC) package; higher thermal mass but incompatible footprint. | Not drop-in replaceable due to different pad layout and 2.5× larger body; better for high-power derating scenarios. | Choose when thermal dissipation >6.5 W is required and PCB redesign is acceptable. |
Compared with SMAJ64A-E3/57T and SMCJ64CA, the SMCG64CA-E3/57T uniquely combines bidirectional symmetry, DO-215AB compactness, and AEC-Q101 qualification - making it optimal for space-constrained automotive and industrial differential interface protection where polarity-agnostic layout and automotive compliance are mandatory.
Availability
SMCG64CA-E3/57T is available at Aetrix Electronics and suitable for automotive CAN bus protection, industrial RS-485 networks, consumer USB Type-C interface hardening, and automotive sensor signal conditioning requiring stable component supply across production lifecycles.
Supply support for SMCG64CA-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 automotive-grade qualification.
The SMCG series targets high-reliability transient suppression in space-constrained, thermally demanding applications - particularly automotive powertrain, chassis, and ADAS subsystems where AEC-Q101 compliance and bidirectional clamping are essential.
FAQ
What is the clamping voltage of SMCG64CA-E3/57T at its rated peak pulse current?
The SMCG64CA-E3/57T has a maximum clamping voltage (VC) of 103 V at its specified peak pulse current (IPPM) of 14.6 A under a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and verified on the minimum recommended 8.0 mm × 8.0 mm copper pad layout. The 103 V clamping level ensures downstream ICs remain within safe operating voltage limits during surge events.
Is SMCG64CA-E3/57T suitable for automotive applications?
Yes, SMCG64CA-E3/57T is AEC-Q101 qualified and UL 497B recognized (file E136766), making it suitable for automotive use cases including CAN bus protection, sensor signal lines, and infotainment power rails. Its -55 °C to +150 °C operating temperature range, MSL Level 1 reflow compatibility, and bidirectional symmetry align with stringent automotive EMC and reliability requirements.
Does SMCG64CA-E3/57T have polarity markings on the package?
No, SMCG64CA-E3/57T does not feature polarity markings because it is a bidirectional TVS diode. Unlike unidirectional variants (e.g., SMCG64A), which use a cathode band, the CA suffix indicates symmetrical conduction - meaning either terminal can serve as anode or cathode depending on instantaneous voltage polarity. This simplifies PCB layout for differential or AC-coupled interfaces.
What is the maximum reverse leakage current for SMCG64CA-E3/57T at its stand-off voltage?
The SMCG64CA-E3/57T exhibits a maximum reverse leakage current (ID) of 1.0 µA at its 64 V stand-off voltage (VWM), measured at TA = 25 °C. This ultra-low leakage preserves signal integrity in high-impedance circuits such as sensor outputs or communication bus idle states, and remains stable across temperature due to its glass-passivated junction construction.
What package type and lead finish does SMCG64CA-E3/57T use?
SMCG64CA-E3/57T uses the SMCG (DO-215AB) surface-mount package with gull-wing leads and matte tin plating. It complies with J-STD-002 and JESD 22-B102 for solderability and passes JESD 201 Class 2 whisker testing. The "E3" suffix denotes RoHS-compliant, industrial-grade construction with UL 94 V-0 molding compound.
SMCG64CA-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:
- -
- Bidirectional Channels:
- 1
- 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)
SMCG64CA-E3/57T FAQ
1.How can I place an order for SMCG64CA-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG64CA-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 SMCG64CA-E3/57T reliable?
The price and inventory of SMCG64CA-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 SMCG64CA-E3/57T is usually 5 days.
3.What payment methods are accepted for SMCG64CA-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG64CA-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG64CA-E3/57T?
SMCG64CA-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG64CA-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 SMCG64CA-E3/57T?
For technical support, including SMCG64CA-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG64CA-E3/57T requirements.
6.How does Aetrix verify that SMCG64CA-E3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG64CA-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 SMCG64CA-E3/57T meets industry standards.
7.What is the process for return or replacement of SMCG64CA-E3/57T?
All SMCG64CA-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG64CA-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 SMCG64CA-E3/57T part is unused and in its original packaging.
Return procedure for SMCG64CA-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG64CA-E3/57T Tags
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