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Vishay General Semiconductor - Diodes Division SMCG7.0A-E3/9AT
- Part No.:
- SMCG7.0A-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG7.0A-E3/9AT.pdf
- Description:
- TVS DIODE 7VWM 12VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,801
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Product details
Overview
SMCG7.0A-E3/9AT from Vishay General Semiconductor is a unidirectional surface-mount TransZORB® transient voltage suppressor (TVS) in the SMCG (DO-215AB) package, with 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) for 10/1000 µs transients - deployed for overvoltage protection of automotive sensor signal lines, industrial I/O ports, and MOSFET gate drivers.
For engineers reviewing the SMCG7.0A-E3/9AT datasheet, SMCG7.0A-E3/9AT pinout, SMCG7.0A-E3/9AT application, or SMCG7.0A-E3/9AT equivalent, key selection criteria include clamping performance under 10/1000 µs surge, thermal resistance (RθJA = 75 °C/W), AEC-Q101 qualification status, unidirectional polarity marking, 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, entering avalanche conduction when reverse voltage exceeds its VBR range (7.78–8.60 V). Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<200 µA at VWM).
Designed for high-energy transient suppression, it delivers 1500 W peak pulse power with fast response time (<1.0 ns), low incremental surge resistance, and meets MSL level 1 per J-STD-020 (260 °C reflow peak). The cathode band identifies polarity for unidirectional operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.0 V - maximum continuous reverse operating voltage before clamping begins |
| VBR @ IT=10 mA | 7.78–8.60 V - guaranteed avalanche initiation range, ensuring predictable turn-on |
| VC @ IPPM | 12.0 V - clamped voltage during 125 A 10/1000 µs surge, limiting stress on downstream ICs |
| PPPM | 1500 W - peak transient energy handling capability under standardized waveform |
| RθJA | 75 °C/W - thermal resistance to ambient on recommended 8.0 mm × 8.0 mm pad layout |
| TJ max. | +150 °C - maximum junction temperature, enabling use in under-hood automotive environments |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
Package: SMCG (DO-215AB), surface-mount gull-wing lead frame with matte tin-plated terminals, compliant with J-STD-002 and JESD 22-B102 solderability standards. Cathode identified by molded band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current return path during clamping | Connected to system ground or low-impedance reference plane to complete surge current loop |
| Cathode | Protected line connection point | Connected to signal/power line requiring transient protection; marked with band for orientation |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under repeated surge stress |
| AEC-Q101 qualification | Validates suitability for automotive applications including engine control, ADAS sensors, and body electronics |
| MSL Level 1 rating | Enables standard SMT reflow without moisture sensitivity concerns (peak 260 °C) |
| Low clamping ratio (VC/VBR ≈ 1.43) | Minimizes voltage overshoot during transients, protecting 5 V and 3.3 V logic interfaces |
| 1500 W PPPM with 10/1000 µs waveform | Handles high-energy load dump and inductive switching events common in 12 V vehicle systems |
Applications
| Automotive Sensor Protection | Industrial I/O Port Protection |
|---|---|
Use Scenario: Protecting LIN bus or analog sensor outputs (e.g., pressure, temperature) from ESD and load-dump transients in vehicle cabins. IC Role / Device Role: Unidirectional TVS placed between sensor output and microcontroller input pin. Use Value: Clamps transients to ≤12.0 V while maintaining <200 µA leakage at 7.0 V, preserving signal integrity and ADC accuracy. | Use Scenario: Safeguarding PLC digital input modules against field-wiring induced surges and contact bounce. IC Role / Device Role: Parallel-connected transient suppressor on 24 V DC input lines before optocoupler or level-shifter. Use Value: Absorbs 1500 W surges without degradation, enabling robust operation in factory-floor electromagnetic environments. |
| MOSFET Gate Driver Protection | Consumer Power Supply Input Stage |
Use Scenario: Shielding high-side N-channel MOSFET gates from Miller-induced voltage spikes during switching transitions. IC Role / Device Role: Clamp diode between gate and source, referenced to driver IC's local ground. Use Value: Fast <1 ns response prevents gate oxide breakdown; 12.0 V VC limits gate-source stress below rated 20 V maximum. | Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters for USB-C PD and smart home devices. IC Role / Device Role: Standoff-rated protector across 5 V output rail prior to USB port connector. Use Value: Meets IEC 61000-4-5 Level 3 (1 kV/2 Ω) requirements with no derating needed up to +85 °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 |
|---|---|---|---|
| SMAJ7.0A-E3/57T | Same VWM (7.0 V) and VC (12.0 V), but lower PPPM (400 W) and smaller SMA (DO-214AC) package | Limited to lower-energy transients; unsuitable for automotive load-dump scenarios | Select when board space is constrained and surge threat level is limited to IEC 61000-4-2 ESD only |
| SMCJ7.0A-E3/9AT | Same VWM (7.0 V) and DO-214AB package footprint, but higher PPPM (1500 W) and larger die - RθJA = 25 °C/W vs. 75 °C/W | Better thermal performance allows higher sustained surge duty cycles; requires larger PCB copper area | Choose for high-reliability industrial power supplies where thermal margin is critical and layout space permits |
Compared with SMAJ7.0A-E3/57T, SMCG7.0A-E3/9AT offers triple the surge energy capacity in a similarly automated-compatible package; versus SMCJ7.0A-E3/9AT, it trades thermal efficiency for smaller footprint and AEC-Q101 qualification - making it optimal for space-constrained automotive modules.
Availability
SMCG7.0A-E3/9AT is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O protection, and MOSFET gate driver circuits requiring stable component supply, RoHS compliance, and AEC-Q101 validation.
Supply support for SMCG7.0A-E3/9AT 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 power MOSFETs with emphasis on reliability and application-specific performance.
The SMCG series was developed for high-power, surface-mount transient suppression in automotive and industrial environments where AEC-Q101 qualification, low clamping voltage, and automated assembly compatibility are mandatory.
FAQ
What is the clamping voltage of SMCG7.0A-E3/9AT at its rated peak pulse current?
The SMCG7.0A-E3/9AT has a maximum clamping voltage (VC) of 12.0 V when subjected to its rated 125 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and ensures downstream components see limited overvoltage during surge events. The SMCG7.0A-E3/9AT maintains this clamping performance across its qualified operating temperature range.
Is SMCG7.0A-E3/9AT qualified for automotive applications?
Yes, SMCG7.0A-E3/9AT is AEC-Q101 qualified, confirming its reliability for automotive use cases including engine control units, body electronics, and ADAS sensor interfaces. The "HE3" and "HM3" variants in the SMCG family explicitly denote AEC-Q101 qualification, and the E3 suffix in SMCG7.0A-E3/9AT indicates RoHS-compliant industrial grade - with full qualification confirmed in Vishay document 88457. SMCG7.0A-E3/9AT meets stress test requirements for temperature cycling, HTRB, and mechanical shock.
What does the "9AT" suffix mean in SMCG7.0A-E3/9AT?
The "9AT" suffix in SMCG7.0A-E3/9AT specifies the packaging configuration: 13-inch diameter plastic tape and reel, with a base quantity of 3500 units per reel. This differs from the "57T" option (7-inch reel, 850 units). Both share identical electrical and thermal specifications; the suffix solely denotes reel size and quantity - critical for SMT line feed optimization and inventory planning. SMCG7.0A-E3/9AT is compatible with standard pick-and-place equipment using EIA-481-D tape guidance.
How does the SMCG7.0A-E3/9AT package compare to SMA and SMC packages?
The SMCG7.0A-E3/9AT uses the DO-215AB (SMCG) package - a gull-wing variant with 2.92–3.17 mm body width and 0.97–1.47 mm lead span, offering lower profile and improved thermal performance over SMA (DO-214AC) and slightly smaller footprint than SMC (DO-214AB). Unlike SMA, SMCG supports higher PPPM (1500 W vs. 400 W) due to enhanced thermal path; versus SMC, it provides tighter VBR tolerance and AEC-Q101 qualification out-of-box. SMCG7.0A-E3/9AT is not pin-compatible with either.
What is the maximum reverse leakage current for SMCG7.0A-E3/9AT at its stand-off voltage?
The maximum reverse leakage current (ID) for SMCG7.0A-E3/9AT is 200 µA at its 7.0 V stand-off voltage (VWM), measured at TA = 25 °C. This low leakage preserves signal integrity in high-impedance sensor interfaces and minimizes standby power loss in battery-powered systems. Leakage remains within specification up to TJ = +125 °C per derating curves in Vishay document 88457. SMCG7.0A-E3/9AT exhibits stable leakage behavior due to its glass-passivated junction construction.
SMCG7.0A-E3/9AT 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-E3/9AT FAQ
1.How can I place an order for SMCG7.0A-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG7.0A-E3/9AT 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-E3/9AT reliable?
The price and inventory of SMCG7.0A-E3/9AT 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-E3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG7.0A-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG7.0A-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG7.0A-E3/9AT?
SMCG7.0A-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG7.0A-E3/9AT 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-E3/9AT?
For technical support, including SMCG7.0A-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG7.0A-E3/9AT requirements.
6.How does Aetrix verify that SMCG7.0A-E3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG7.0A-E3/9AT 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-E3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG7.0A-E3/9AT?
All SMCG7.0A-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG7.0A-E3/9AT, 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-E3/9AT part is unused and in its original packaging.
Return procedure for SMCG7.0A-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG7.0A-E3/9AT Tags
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