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Vishay General Semiconductor - Diodes Division SMCG64AHE3/57T
- Part No.:
- SMCG64AHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG64AHE3/57T.pdf
- Description:
- TVS DIODE 64VWM 103VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,945
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Product details
Overview
SMCG64AHE3/57T from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) surface-mount 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, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SMCG64AHE3/57T datasheet, SMCG64AHE3/57T pinout, SMCG64AHE3/57T application, or SMCG64AHE3/57T equivalent, this device is selected for high-energy surge suppression in automotive power lines, industrial sensor interfaces, and DC bus protection where low clamping ratio, fast response (<1 ns), and MSL Level 1 reflow compatibility are critical.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, triggered when reverse voltage exceeds its specified VBR range (71.1–78.6 V). Its glass-passivated junction ensures stable leakage performance and long-term reliability under repetitive surge stress.
Designed for surface-mount assembly on 8.0 mm × 8.0 mm copper pads per terminal, it delivers 1500 W peak pulse power with thermal resistance RθJA = 75 °C/W and maximum junction temperature of +150 °C - enabling operation in under-hood automotive environments and industrial control cabinets without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 64 V - Maximum continuous reverse operating voltage before significant leakage; defines safe operating margin below clamping threshold |
| VBR (Breakdown Voltage) | 71.1–78.6 V at 1 mA - Confirmed avalanche initiation range; ensures predictable turn-on during transients |
| VC (Clamping Voltage) | 103 V at IPPM = 14.6 A - Limits downstream voltage stress during 10/1000 µs surge; clamping ratio = VC/VWM ≈ 1.61 |
| PPPM (Peak Pulse Power) | 1500 W - Sustains high-energy surges per IEC 61000-4-5 Level 4 (4 kV/2 Ω); validated on standard 8 mm × 8 mm pad layout |
| ID (Max Reverse Leakage) | 1.0 µA at VWM - Ultra-low leakage preserves signal integrity and battery drain in always-on circuits |
| TJ max | +150 °C - Enables deployment in engine control units, motor drives, and other high-ambient-temperature locations |
| AEC-Q101 Qualified | Yes - Certified for automotive electronic systems per stress test requirements including HTRB, HTGB, and temperature cycling |
Pinout & Package
Package: SMCG (DO-215AB) - low-profile, gull-wing surface-mount package with matte tin-plated leads, compliant with J-STD-002 and JESD 22-B102 solderability standards. Molding compound meets UL 94 V-0. Polarity marked by cathode band on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Surge return path | Connected to protected line's low-side reference (e.g., ground or negative rail); completes clamping loop during overvoltage events |
| Cathode | Reverse-biased terminal / Clamping node | Connected to the line being protected (e.g., 12 V or 24 V supply); conducts avalanche current when VAK > VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, HTRB, and mechanical shock - supports Tier-1 ECU designs without additional qualification effort |
| Low incremental surge resistance | Enables tight clamping (VC/VWM = 1.61) and minimal voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a/5a) |
| MSL Level 1 rating | Compatible with standard 260 °C peak reflow profiles (J-STD-020); no floor life limitation or baking required prior to assembly |
| Glass-passivated junction | Ensures stable VBR and low leakage over 15+ years in harsh environments - critical for industrial and automotive field reliability |
| 1500 W peak pulse power | Withstands repeated 10/1000 µs surges up to 14.6 A without degradation - suitable for CAN FD, LIN, and 24 V power rail protection |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V supply rails in engine control modules against load dump and alternator transients per ISO 16750-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp surges above 64 V. Use Value: Limits rail voltage to ≤103 V during 1500 W pulses, preventing damage to microcontrollers, gate drivers, and analog front-ends. |
Use Scenario: Safeguarding 4–20 mA current-loop sensors and RS-485 transceivers in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional TVS (cathode tied to signal line, anode to ground) suppressing ESD and inductive kickback. Use Value: Sub-1 ns response and 1.0 µA leakage preserve signal fidelity while surviving 8 kV contact ESD (IEC 61000-4-2) and 4 kV surge (IEC 61000-4-5). |
| DC Motor Drive Bus Protection | Telecom Power Supply Input Protection |
Use Scenario: Shielding H-bridge driver ICs and freewheeling diodes from flyback voltage spikes during PWM switching in BLDC motor controllers. IC Role / Device Role / Timing Role: TVS mounted across motor terminals or DC bus to absorb inductive energy during MOSFET turn-off. Use Value: 1500 W rating handles repetitive 10/1000 µs surges up to 14.6 A; 150 °C TJ max supports compact heatsink-free placement near motors. |
Use Scenario: Front-end protection for AC/DC and DC/DC converters in telecom base station power supplies exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary-stage TVS on 48 V input rail to limit surge voltage before upstream filtering and regulation stages. Use Value: 103 V clamping at 14.6 A ensures downstream components see <110 V stress - well within 150 V rated input capacitors 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 (Vishay) | Same VWM (64 V) and PPPM (400 W), but lower power rating; SMA (DO-214AC) package, RθJA = 95 °C/W | Limited to lower-energy transients (e.g., ESD-only); unsuitable for ISO 16750-2 load dump | Select SMCG64AHE3/57T when 1500 W surge handling and AEC-Q101 compliance are mandatory. |
| 1.5KE68A (ON Semiconductor) | Through-hole DO-201 package; 68 V VWM, 1500 W PPPM, but not AEC-Q101 qualified; higher RθJA (~60 °C/W on large pads) | Requires PCB through-holes and manual/reflow hybrid assembly; lacks automotive qualification documentation | Choose SMCG64AHE3/57T for automated SMT production, space-constrained layouts, and certified automotive deployment. |
Compared with SMAJ64A-E3/57T and 1.5KE68A, SMCG64AHE3/57T delivers identical clamping performance in a smaller footprint, enables full SMT automation, and provides documented AEC-Q101 qualification - making it the preferred choice for next-generation automotive and industrial power protection where reliability, manufacturability, and regulatory traceability are non-negotiable.
Availability
SMCG64AHE3/57T is available at Aetrix Electronics and suitable for automotive ECUs, industrial motor drives, telecom power supplies, and sensor interface modules requiring stable component supply with full AEC-Q101 traceability and RoHS compliance.
Supply support for SMCG64AHE3/57T 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 application-specific optimization.
The SMCG series is engineered for high-power transient suppression in automotive and industrial environments, combining AEC-Q101 qualification, low-profile SMT packaging, and consistent clamping performance across temperature and lifetime.
FAQ
What is the clamping voltage of SMCG64AHE3/57T at its rated peak pulse current?
The SMCG64AHE3/57T has a maximum clamping voltage (VC) of 103 V at a peak pulse current (IPPM) of 14.6 A under the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions on the recommended 8.0 mm × 8.0 mm copper pad layout and reflects the actual voltage seen by downstream circuitry during surge events. The SMCG64AHE3/57T maintains this clamping performance across its full operating temperature range.
Is SMCG64AHE3/57T suitable for automotive applications requiring AEC-Q101 qualification?
Yes, SMCG64AHE3/57T is explicitly AEC-Q101 qualified, as confirmed in the Vishay datasheet (Document Number: 88457, Revision: 09-Jan-2024). It passes all required stress tests including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling - making it appropriate for engine control units, body electronics, and ADAS power domains. The "HE3" suffix denotes AEC-Q101 qualification and RoHS compliance.
What is the thermal resistance and maximum junction temperature of SMCG64AHE3/57T?
The SMCG64AHE3/57T has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on the standard 0.31″ × 0.31″ (8.0 mm × 8.0 mm) copper pads per terminal. Its maximum junction temperature (TJ max) is +150 °C, allowing reliable operation in under-hood automotive environments and industrial enclosures without active cooling. This thermal performance is integral to sustaining its 1500 W peak pulse rating.
Does SMCG64AHE3/57T have polarity marking, and how is it oriented in circuit?
Yes, SMCG64AHE3/57T is unidirectional and features a visible cathode band on the package body. In circuit, the cathode must be connected to the line being protected (e.g., 12 V rail), and the anode to ground or the return path. This orientation ensures proper avalanche conduction during overvoltage events. Bidirectional variants use the "CA" suffix (e.g., SMCG64CA) and lack polarity markings.
What is the reverse leakage current specification for SMCG64AHE3/57T at its stand-off voltage?
The SMCG64AHE3/57T exhibits a maximum reverse leakage current (ID) of 1.0 µA at its rated stand-off voltage (VWM) of 64 V and TA = 25 °C. This ultra-low leakage ensures minimal power loss in always-on systems such as automotive body controllers and IoT sensor nodes, preserving battery life and avoiding false triggering in high-impedance monitoring circuits. The SMCG64AHE3/57T maintains leakage <5 µA up to TJ = 125 °C.
SMCG64AHE3/57T 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCG)
SMCG64AHE3/57T FAQ
1.How can I place an order for SMCG64AHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG64AHE3/57T 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 SMCG64AHE3/57T reliable?
The price and inventory of SMCG64AHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG64AHE3/57T is usually 5 days.
3.What payment methods are accepted for SMCG64AHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG64AHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG64AHE3/57T?
SMCG64AHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG64AHE3/57T 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 SMCG64AHE3/57T?
For technical support, including SMCG64AHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG64AHE3/57T requirements.
6.How does Aetrix verify that SMCG64AHE3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG64AHE3/57T 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 SMCG64AHE3/57T meets industry standards.
7.What is the process for return or replacement of SMCG64AHE3/57T?
All SMCG64AHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG64AHE3/57T, 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 SMCG64AHE3/57T part is unused and in its original packaging.
Return procedure for SMCG64AHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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