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Vishay General Semiconductor - Diodes Division SMCG7.0A-E3/57T
- Part No.:
- SMCG7.0A-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG7.0A-E3/57T.pdf
- Description:
- TVS DIODE 7VWM 12VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,997
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Product details
Overview
SMCG7.0A-E3/57T from Vishay General Semiconductor is a unidirectional surface-mount TransZORB® transient voltage suppressor (TVS) in the SMCG (DO-215AB) package, featuring a 7.0 V stand-off voltage (VWM), 7.78–8.60 V breakdown voltage (VBR) at 10 mA, 125 A peak pulse current (IPPM), 12.0 V clamping voltage (VC) at IPPM, and 1500 W peak pulse power (PPPM) with a 10/1000 µs waveform - deployed for overvoltage protection of MOSFET gates and signal lines in automotive powertrain control modules.
For engineers reviewing the SMCG7.0A-E3/57T datasheet, SMCG7.0A-E3/57T pinout, SMCG7.0A-E3/57T application, or SMCG7.0A-E3/57T equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, MSL Level 1 moisture sensitivity, 75 °C/W junction-to-ambient thermal resistance, and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
This TVS diode operates as a clamping device in parallel with protected circuitry, triggering when reverse voltage exceeds VBR to shunt surge energy away from sensitive components. Its glass-passivated junction ensures stable leakage performance and fast response (<1 ns), while the DO-215AB package supports high thermal dissipation under repetitive transients.
Designed for industrial and automotive environments, SMCG7.0A-E3/57T complies with AEC-Q101 stress testing and UL 497B recognition (QVGQ2). It delivers 200 A non-repetitive forward surge capability (IFSM) and maintains <1000 µA reverse leakage at VWM, enabling reliable protection in 12 V battery rail interfaces and CAN bus front-end circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.0 V - maximum continuous reverse operating voltage before clamping begins; sets threshold for 12 V system signal line protection. |
| VBR (min/max) | 7.78 V / 8.60 V at 10 mA - guaranteed breakdown range defining turn-on consistency across production lots. |
| VC @ IPPM | 12.0 V at 125 A - clamped voltage during 10/1000 µs surge; limits stress on downstream ICs such as microcontrollers or transceivers. |
| PPPM | 1500 W - peak transient power handling capacity; enables robust protection against ISO 7637-2 Pulse 1/2a/5a surges. |
| ID @ VWM | 1000 µA max - low leakage ensures minimal standby current draw in always-on automotive modules. |
| TJ max | +150 °C - extended junction temperature rating supports operation in engine bay or power inverter environments. |
| RθJA | 75 °C/W - thermal resistance measured on 8.0 mm × 8.0 mm copper pads; informs heatsinking requirements for sustained surge duty. |
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. Polarity indicated by cathode band; unidirectional configuration only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-impedance return path; forms current loop during clamping event. |
| Cathode | High-side surge input terminal | Connected to protected line (e.g., 12 V supply or LIN bus); accepts transient energy and routes it to anode. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including HTOL, TC, UHAST, and ESD testing per JEDEC standards. |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage drift over temperature and lifetime, critical for long-term field deployment. |
| MSL Level 1 (260 °C peak) | Enables standard reflow assembly without pre-baking; compatible with industrial and automotive SMT lines. |
| UL 497B recognition (QVGQ2) | Confirms suitability for telecom and industrial signal line protection per safety-critical surge standards. |
| Low incremental surge resistance | Minimizes VC rise under high di/dt events, improving clamping precision for fast-rising transients like load dump spikes. |
Applications
| Automotive Powertrain Control | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting MCU I/O pins and gate drivers in engine control units exposed to ISO 7637-2 load dump and inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 12 V supply rail and ground, clamping surges within nanoseconds to prevent latch-up or oxide damage. Use Value: With 12.0 V clamping and 1500 W PPPM, SMCG7.0A-E3/57T holds rail voltage below 13.5 V during 100 A transients, preserving logic-level integrity of 5 V/3.3 V peripherals. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) in factory automation PLCs from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted directly at connector entry point, shunting >8 kV HBM ESD pulses before reaching ADC front-end. Use Value: Sub-1000 µA leakage at 7.0 V ensures no DC offset error in mV-range sensor signals; DO-215AB footprint allows placement within 2 mm of I/O connector. |
| Automotive Body Electronics | Telecom Line Interface |
Use Scenario: Safeguarding LIN bus transceivers in door module ECUs subjected to battery reversal and jump-start surges. IC Role / Device Role / Timing Role: Unidirectional clamp referenced to local ground, absorbing reverse-polarity energy up to −14 V and positive spikes to +27 V. Use Value: 200 A IFSM rating withstands repeated jump-start faults; AEC-Q101 qualification guarantees operation across −40 °C to +125 °C ambient. |
Use Scenario: Protecting RS-485 transceiver inputs in base station backhaul equipment from lightning-induced surges on twisted-pair lines. IC Role / Device Role / Timing Role: Standoff-rated TVS placed differential-mode across A/B lines, limiting common-mode transients via shared ground path. Use Value: 7.0 V VWM aligns with RS-485 receiver common-mode range (−7 V to +12 V); UL 497B recognition validates compliance with telecom safety requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.0A-E3/57T | Same VWM/VBR/VC specs but in SMA (DO-214AC) package; 100 A IPPM (vs. 125 A), 400 W PPPM (vs. 1500 W). | Limited to lower-energy transients; not rated for automotive load dump per ISO 7637-2 Pulse 5a. | Select when board space is constrained and surge energy is ≤400 W; verify thermal derating on smaller pad layout. |
| SMCJ7.0A-E3/57T | Same DO-215AB package, identical 1500 W PPPM and 125 A IPPM, but higher VBR (7.78–8.60 V same), slightly higher VC (12.5 V vs. 12.0 V). | Functionally interchangeable in most 12 V rail applications; marginally higher clamping may affect tight-tolerance ICs. | Preferred where legacy BOM uses SMCJ series; verify VC margin against downstream device absolute maximum ratings. |
Compared with SMAJ7.0A-E3/57T and SMCJ7.0A-E3/57T, SMCG7.0A-E3/57T offers the optimal balance of high-energy clamping (1500 W), AEC-Q101 qualification, and DO-215AB thermal performance - making it the preferred choice for automotive and industrial systems requiring validated surge resilience without layout redesign.
Availability
SMCG7.0A-E3/57T is available at Aetrix Electronics and suitable for automotive powertrain control, industrial sensor interface protection, and telecom line interface applications requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMCG7.0A-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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
SMCG7.0A-E3/57T belongs to Vishay's TransZORB® family of high-power TVS diodes engineered for automotive-grade transient suppression in harsh environments - targeting ISO 7637-2, IEC 61000-4-2/4/5 compliance and AEC-Q101 validation.
FAQ
What is the clamping voltage of SMCG7.0A-E3/57T at its rated peak pulse current?
The SMCG7.0A-E3/57T has a maximum clamping voltage (VC) of 12.0 V when subjected to its rated 125 A peak pulse current (IPPM) under a 10/1000 µs waveform. This value is measured per standard test conditions and ensures downstream components remain within safe operating voltage limits during transient events. The SMCG7.0A-E3/57T achieves this clamping performance while maintaining low incremental surge resistance, critical for fast-rising transients.
Is SMCG7.0A-E3/57T qualified for automotive applications?
Yes, SMCG7.0A-E3/57T is AEC-Q101 qualified, having passed stress tests including high-temperature operating life, temperature cycling, unbiased highly accelerated stress testing, and ESD. It is specifically designed for automotive use cases such as powertrain control modules and body electronics, and carries UL 497B recognition (QVGQ2) for safety-critical surge protection. The SMCG7.0A-E3/57T meets MSL Level 1 and supports reflow soldering at 260 °C peak.
What package type does SMCG7.0A-E3/57T use, and what are its mounting requirements?
SMCG7.0A-E3/57T uses the SMCG (DO-215AB) surface-mount package with gull-wing leads and matte tin plating. It requires mounting on minimum 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal for rated thermal and surge performance. The SMCG7.0A-E3/57T polarity is marked with a cathode band, and its RθJA is specified as 75 °C/W under these pad conditions - critical for thermal management in high-duty-cycle applications.
How does SMCG7.0A-E3/57T differ from bidirectional variants like SMCG7.0CA?
SMCG7.0A-E3/57T is unidirectional, with polarity defined by a cathode band and intended for DC line protection where reverse voltage is blocked. In contrast, SMCG7.0CA is bidirectional, lacks polarity marking, and clamps in both directions - suitable for AC or differential signal lines. The SMCG7.0A-E3/57T has a forward surge rating (IFSM = 200 A), while SMCG7.0CA does not specify IFSM due to symmetrical structure. Their VBR and VC values are otherwise closely matched.
What is the maximum reverse leakage current for SMCG7.0A-E3/57T at its stand-off voltage?
The SMCG7.0A-E3/57T exhibits a maximum reverse leakage current (ID) of 1000 µA at its 7.0 V stand-off voltage (VWM), tested at TA = 25 °C. This low leakage ensures minimal impact on power budget and signal integrity in always-on automotive and industrial systems. The SMCG7.0A-E3/57T maintains this specification across its full operating temperature range (−55 °C to +150 °C), supported by its glass-passivated junction construction.
SMCG7.0A-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):
- 7V
- Voltage - Breakdown (Min):
- 7.78V
- Voltage - Clamping (Max) @ Ipp:
- 12V
- Current - Peak Pulse (10/1000µs):
- 125A
- 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)
SMCG7.0A-E3/57T FAQ
1.How can I place an order for SMCG7.0A-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG7.0A-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 SMCG7.0A-E3/57T reliable?
The price and inventory of SMCG7.0A-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 SMCG7.0A-E3/57T is usually 5 days.
3.What payment methods are accepted for SMCG7.0A-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG7.0A-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG7.0A-E3/57T?
SMCG7.0A-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG7.0A-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 SMCG7.0A-E3/57T?
For technical support, including SMCG7.0A-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG7.0A-E3/57T requirements.
6.How does Aetrix verify that SMCG7.0A-E3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG7.0A-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 SMCG7.0A-E3/57T meets industry standards.
7.What is the process for return or replacement of SMCG7.0A-E3/57T?
All SMCG7.0A-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG7.0A-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 SMCG7.0A-E3/57T part is unused and in its original packaging.
Return procedure for SMCG7.0A-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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