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Vishay General Semiconductor - Diodes Division SMCG64CAHE3/57T
- Part No.:
- SMCG64CAHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG64CAHE3/57T.pdf
- Description:
- TVS DIODE 64VWM 103VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,243
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Product details
Overview
SMCG64CAHE3/57T from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) package, designed for high-energy surge protection on signal and power lines. It features a 64 V stand-off voltage (VWM), 71.1–78.6 V breakdown voltage (VBR), 1500 W peak pulse power (PPPM), and clamps to ≤103 V at 14.6 A IPPM - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMCG64CAHE3/57T datasheet, SMCG64CAHE3/57T pinout, SMCG64CAHE3/57T application, or SMCG64CAHE3/57T equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, DO-215AB thermal performance (RθJA = 75 °C/W), and compatibility with 10/1000 µs surge waveforms in harsh environments.
Technical Context
This device operates as a voltage-clamped crowbar during transients, leveraging an avalanche junction to divert surge current away from protected circuitry. Its bidirectional symmetry ensures identical clamping behavior in both polarities, with no polarity marking required on the package.
Designed for surface-mount automated assembly, it uses glass-passivated silicon die in a low-profile SMCG (DO-215AB) case rated UL 94 V-0, supporting reflow up to 260 °C (MSL Level 1) and qualified per AEC-Q101 for automotive under-hood applications.
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 - guaranteed avalanche onset range for reliable turn-on margin |
| VC @ IPPM | ≤103 V at 14.6 A - clamping voltage under 10/1000 µs surge, limiting downstream stress |
| PPPM | 1500 W - peak transient power dissipation capability per single event |
| TJ max | +150 °C - maximum junction temperature enabling operation in engine bay or industrial enclosures |
| RθJA | 75 °C/W - thermal resistance defining derating above 25 °C ambient for PCB layout planning |
Pinout & Package
Package: SMCG (DO-215AB), surface-mount gull-wing, 2-terminal bidirectional configuration with no polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode | Surge current path | Interchangeable terminals - symmetrical bidirectional conduction; no cathode band marking |
| Case | Thermal and mechanical interface | Plastic body with matte tin-plated leads solderable per J-STD-002; mounted on 8.0 mm × 8.0 mm copper pads |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive under-hood use including temperature cycling, humidity, and mechanical shock |
| Low incremental surge resistance | Enables tighter clamping with minimal voltage overshoot during fast transients |
| MSL Level 1 rating | Allows standard SMT reflow without moisture sensitivity concerns (peak 260 °C) |
| Glass-passivated junction | Ensures long-term stability of breakdown characteristics and leakage performance over life |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ESD events in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across differential or single-ended signal lines upstream of IC input pins. Use Value: Limits transient voltage to ≤103 V while handling 1500 W surges, preserving signal integrity and preventing latch-up in AEC-Q100 qualified ICs. | Use Scenario: Safeguarding digital input modules in programmable logic controllers against inductive switching spikes from solenoids and relays. IC Role / Device Role / Timing Role: Parallel-connected TVS absorbing repetitive 10/1000 µs surges on 24 V DC field wiring. Use Value: Maintains system uptime by preventing false triggering or damage to optocouplers and microcontrollers during factory automation transients. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Surge suppression on Ethernet PHY interfaces or RS-485 data lines exposed to lightning-induced surges in outdoor telecom equipment. IC Role / Device Role / Timing Role: Primary-level protector between connector and isolation transformer or transceiver IC. Use Value: Withstands >100 surges at rated PPPM while maintaining <1 µA ID at 64 V, ensuring low standby power impact. | Use Scenario: Input-stage protection on AC-DC adapter secondary-side 12–24 V rails against capacitor discharge and hot-plug transients. IC Role / Device Role / Timing Role: Clamp device placed after rectification but before DC-DC converter input capacitors. Use Value: Fast response time (<1 ns) and low clamping ratio (VC/VWM ≈ 1.61) prevent overvoltage stress on downstream MOSFETs and controllers. |
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; lower PPPM (400 W); SMA (DO-214AC) package; RθJA = 95 °C/W | Requires polarity-aware placement; unsuitable for AC-coupled or differential lines without external bias | Select only when unidirectional clamping suffices and board space allows larger thermal pad area for derating |
| SMCJ64AHE3/57T | Same bidirectional function; higher PPPM (1500 W); SMC (DO-214AB) package; RθJA = 50 °C/W | Larger footprint (7.11 mm × 6.22 mm vs. 6.60 mm × 5.59 mm); requires revised land pattern | Prefer when higher thermal margin is needed and PCB layout permits SMC package size |
Compared with SMAJ64A-E3/57T and SMCJ64AHE3/57T, SMCG64CAHE3/57T delivers identical 1500 W surge rating in a smaller DO-215AB outline with AEC-Q101 validation - making it optimal for space-constrained automotive modules where bidirectional symmetry and MSL-1 reflow are mandatory.
Availability
SMCG64CAHE3/57T is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O protection, and telecom line interface designs requiring stable component supply across production lifecycles.
Supply support for SMCG64CAHE3/57T 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, and protection devices with emphasis on reliability and automotive-grade qualification.
The SMCG series targets high-power transient suppression in compact surface-mount formats, specifically engineered for AEC-Q101 compliance and robust surge immunity in demanding automotive and industrial environments.
FAQ
What is the clamping voltage of SMCG64CAHE3/57T at its rated peak pulse current?
The SMCG64CAHE3/57T clamps to a maximum 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 standards and defines the upper voltage limit imposed on protected circuitry during surge events. The clamping performance is guaranteed across the full operating temperature range of -55 °C to +150 °C.
Is SMCG64CAHE3/57T suitable for automotive applications?
Yes, SMCG64CAHE3/57T is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its construction includes glass-passivated junctions, MSL Level 1 reflow compatibility (260 °C peak), and validated performance across -55 °C to +150 °C junction temperature. The HE3 suffix denotes AEC-Q101 qualification, confirming suitability for ECU, sensor, and infotainment system protection.
Does SMCG64CAHE3/57T have polarity markings on the package?
No, SMCG64CAHE3/57T does not feature polarity markings because it is a bidirectional TVS diode. Unlike unidirectional variants (e.g., SMCG64A), the CA suffix indicates symmetrical avalanche behavior in both directions, eliminating the need for cathode band identification. The device functions identically regardless of orientation in the circuit.
What is the thermal resistance of SMCG64CAHE3/57T, and how does it affect layout?
The SMCG64CAHE3/57T 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. This value directly determines power derating above 25 °C ambient - for example, at 85 °C ambient, maximum continuous power drops to ~3.7 W. Layout must replicate the specified pad dimensions to achieve published thermal performance.
How does SMCG64CAHE3/57T differ from SMCG64AHE3/57T?
SMCG64CAHE3/57T is bidirectional (CA suffix), while SMCG64AHE3/57T is unidirectional (A suffix). Their VWM (64 V), VBR (71.1–78.6 V), PPPM (1500 W), and package (SMCG/DO-215AB) are identical, but SMCG64AHE3/57T requires correct cathode orientation and cannot protect AC or differential signals without additional circuitry. The CA version eliminates polarity dependency and supports symmetric transient suppression.
SMCG64CAHE3/57T 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCG)
SMCG64CAHE3/57T FAQ
1.How can I place an order for SMCG64CAHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG64CAHE3/57T 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 SMCG64CAHE3/57T reliable?
The price and inventory of SMCG64CAHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG64CAHE3/57T is usually 5 days.
3.What payment methods are accepted for SMCG64CAHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG64CAHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG64CAHE3/57T?
SMCG64CAHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG64CAHE3/57T 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 SMCG64CAHE3/57T?
For technical support, including SMCG64CAHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG64CAHE3/57T requirements.
6.How does Aetrix verify that SMCG64CAHE3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG64CAHE3/57T 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 SMCG64CAHE3/57T meets industry standards.
7.What is the process for return or replacement of SMCG64CAHE3/57T?
All SMCG64CAHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG64CAHE3/57T, 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 SMCG64CAHE3/57T part is unused and in its original packaging.
Return procedure for SMCG64CAHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG64CAHE3/57T Tags
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