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Vishay General Semiconductor - Diodes Division SMCG7.0CA-E3/9AT
- Part No.:
- SMCG7.0CA-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG7.0CA-E3/9AT.pdf
- Description:
- TVS DIODE 7VWM 12VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,503
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Product details
Overview
SMCG7.0CA-E3/9AT from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) package, designed for robust overvoltage protection on signal and power lines. It features a 7.0 V stand-off voltage (VWM), 7.78–8.60 V breakdown voltage (VBR) at 10 mA, 1500 W peak pulse power (PPPM), 125 A peak pulse current (IPPM), and clamps to ≤12.0 V at rated surge. It is AEC-Q101 qualified and used in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMCG7.0CA-E3/9AT datasheet, SMCG7.0CA-E3/9AT pinout, SMCG7.0CA-E3/9AT application, or SMCG7.0CA-E3/9AT equivalent, key selection criteria include bidirectional clamping behavior, 12.0 V max clamping voltage at 125 A, DO-215AB thermal performance (RθJA = 75 °C/W), AEC-Q101 qualification, and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
The SMCG7.0CA-E3/9AT operates as a bidirectional avalanche diode, symmetrically clamping voltage transients in both polarities without polarity marking. Its glass-passivated junction ensures stable VBR and low leakage (<1000 µA at VWM), while its low incremental surge resistance enables fast response to 10/1000 µs waveforms.
Designed for surface-mount use in high-reliability environments, it meets MSL Level 1 per J-STD-020 (260 °C peak reflow), supports 150 °C maximum junction temperature, and delivers 6.5 W steady-state power dissipation on infinite heatsink at TA = 50 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.0 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/max) | 7.78 V / 8.60 V at 10 mA - Ensures reliable turn-on within tight tolerance for predictable protection threshold |
| VC @ IPPM | ≤12.0 V at 125 A - Limits downstream voltage stress during 10/1000 µs surge events |
| PPPM | 1500 W - Sustains high-energy transients common in automotive load-dump and inductive switching |
| ID @ VWM | ≤1000 µA - Minimizes standby power loss and avoids false triggering in low-power sensor circuits |
| TJ max. | +150 °C - Enables operation in under-hood automotive and industrial ambient conditions |
| RθJA | 75 °C/W - Requires minimum 8.0 mm × 8.0 mm copper pad per terminal for thermal derating compliance |
Pinout & Package
Package: SMCG (DO-215AB) - Low-profile, gull-wing surface-mount package with matte tin-plated leads; no polarity marking for bidirectional configuration; RoHS-compliant (E3 suffix); MSL Level 1, 260 °C peak reflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (positive polarity) | One of two symmetrical terminals; accepts surge current in either direction during clamping |
| Cathode | Transient current entry (negative polarity) | Second symmetrical terminal; identical electrical role to Anode in bidirectional operation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Glass-passivated junction | Ensures long-term VBR stability and low parameter drift across temperature and lifetime |
| Low incremental surge resistance | Enables tighter clamping (VC − VBR ≈ 4.2 V) and superior energy handling vs. standard TVS diodes |
| MSL Level 1 rating | Supports single-reflow assembly without moisture sensitivity concerns or baking requirements |
| UL 94 V-0 molding compound | Meets flammability safety standards for enclosed industrial and automotive enclosures |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN, LIN, or analog sensor inputs (e.g., pressure, temperature) from load dump and ESD in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector or IC input pins to shunt surge energy to ground. Use Value: Clamps 125 A surges to ≤12.0 V, preserving integrity of 3.3 V/5 V sensor interface ICs and meeting ISO 7637-2 Pulse 5a requirements. | Use Scenario: Safeguarding PLC digital input modules against field-wiring transients and relay coil flyback. IC Role / Device Role / Timing Role: Primary front-end TVS on 24 V DC input channels, mounted adjacent to terminal blocks. Use Value: 1500 W PPPM rating handles repetitive 10/1000 µs surges up to 125 A without degradation, extending system uptime in factory automation. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Transient suppression on Ethernet PHY power rails (e.g., PoE midspan injectors) and data line terminations. IC Role / Device Role / Timing Role: Secondary-level protection device after primary GDT or MOV, providing precise low-clamp voltage for sensitive PHY ICs. Use Value: 7.0 V VWM allows coexistence with 5 V or 12 V bias rails; bidirectional symmetry eliminates polarity concerns in AC-coupled lines. | Use Scenario: Input-stage surge protection in USB-C PD adapters and wall chargers exposed to mains-borne transients. IC Role / Device Role / Timing Role: Fast-acting clamp between AC-DC rectifier output and primary-side controller supply rail. Use Value: 12.0 V clamping prevents overvoltage damage to 12 V-rated controllers and optocouplers during EN 61000-4-5 2 kV tests. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.0CA | Same VWM (7.0 V) and bidirectional function, but SMA (DO-214AC) package; lower PPPM (400 W); RθJA = 110 °C/W | Limited to lower-energy transients; requires larger PCB area for thermal management | Select when cost or legacy footprint constraints outweigh need for 1500 W surge rating |
| SMCJ7.0CA | Same DO-214AB package family but higher PPPM (1500 W); VWM = 7.0 V; VC = 12.0 V; however, not AEC-Q101 qualified | Suitable for industrial/commercial use only; lacks automotive qualification documentation and test reports | Select for non-automotive designs where AEC-Q101 is not mandated and identical clamping performance is required |
Compared with SMAJ7.0CA and SMCJ7.0CA, the SMCG7.0CA-E3/9AT uniquely combines AEC-Q101 qualification, DO-215AB's optimized thermal profile (RθJA = 75 °C/W), and 1500 W surge capability in a low-profile gull-wing package-making it the preferred choice for space-constrained, high-reliability automotive and industrial edge nodes.
Availability
SMCG7.0CA-E3/9AT is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and telecom line interface circuits requiring stable component supply and full traceability.
Supply support for SMCG7.0CA-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, MOSFETs, and protection devices with emphasis on reliability, precision, and automotive-grade validation.
The SMCG series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy, bidirectional transient suppression in harsh environments-including under-hood automotive, factory automation, and infrastructure equipment.
FAQ
What is the clamping voltage of SMCG7.0CA-E3/9AT at its rated peak pulse current?
The SMCG7.0CA-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 JEDEC test conditions and ensures downstream circuitry remains within safe operating limits during surge events. The SMCG7.0CA-E3/9AT achieves this with low incremental resistance, making it suitable for protecting 5 V and 12 V systems.
Is SMCG7.0CA-E3/9AT suitable for automotive applications?
Yes, the SMCG7.0CA-E3/9AT is AEC-Q101 qualified, meaning it has passed rigorous stress tests including temperature cycling, high-temperature reverse bias, and ESD immunity required for automotive electronic components. Its 150 °C maximum junction temperature, MSL Level 1 reflow rating, and UL 94 V-0 package make it appropriate for engine control units, body electronics, and ADAS sensor interfaces. The SMCG7.0CA-E3/9AT is explicitly listed in Vishay's AEC-Q101 qualified product matrix.
How does the bidirectional design of SMCG7.0CA-E3/9AT affect its PCB layout?
The SMCG7.0CA-E3/9AT has no polarity marking and functions identically in both directions, eliminating orientation constraints during automated placement. Its DO-215AB gull-wing terminals require symmetric 8.0 mm × 8.0 mm copper pads per lead for thermal compliance, and no cathode band alignment is needed. This simplifies layout, reduces assembly errors, and supports compact routing in dense automotive and industrial PCBs. The SMCG7.0CA-E3/9AT's symmetry also avoids signal inversion issues in AC-coupled or differential lines.
What is the maximum reverse leakage current for SMCG7.0CA-E3/9AT at its stand-off voltage?
At its 7.0 V stand-off voltage (VWM), the SMCG7.0CA-E3/9AT exhibits a maximum reverse leakage current (ID) of 1000 µA at TA = 25 °C. This low leakage preserves signal integrity in high-impedance sensor circuits and minimizes quiescent power draw in battery-powered systems. Leakage remains well below critical thresholds for microcontroller GPIO protection and analog front-end conditioning. The SMCG7.0CA-E3/9AT maintains this specification across its full operating temperature range per Vishay's published derating curves.
Does SMCG7.0CA-E3/9AT require special handling or packaging considerations?
No special handling is required beyond standard MSL Level 1 practices: the SMCG7.0CA-E3/9AT ships in 13" diameter plastic tape and reel (9AT packaging code), is compatible with standard SMT reflow profiles peaking at 260 °C, and needs no pre-bake. Its matte tin-plated leads comply with J-STD-002 and JESD 22-B102 solderability standards, and whisker resistance meets JESD 201 Class 2. The SMCG7.0CA-E3/9AT's RoHS-compliant (E3) construction and UL 94 V-0 molding compound further simplify compliance-driven manufacturing.
SMCG7.0CA-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:
- -
- Bidirectional Channels:
- 1
- 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)
SMCG7.0CA-E3/9AT FAQ
1.How can I place an order for SMCG7.0CA-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG7.0CA-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 SMCG7.0CA-E3/9AT reliable?
The price and inventory of SMCG7.0CA-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 SMCG7.0CA-E3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG7.0CA-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG7.0CA-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG7.0CA-E3/9AT?
SMCG7.0CA-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG7.0CA-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 SMCG7.0CA-E3/9AT?
For technical support, including SMCG7.0CA-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG7.0CA-E3/9AT requirements.
6.How does Aetrix verify that SMCG7.0CA-E3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG7.0CA-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 SMCG7.0CA-E3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG7.0CA-E3/9AT?
All SMCG7.0CA-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG7.0CA-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 SMCG7.0CA-E3/9AT part is unused and in its original packaging.
Return procedure for SMCG7.0CA-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG7.0CA-E3/9AT Tags
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