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Vishay General Semiconductor - Diodes Division SMCG7.0CA-M3/57T
- Part No.:
- SMCG7.0CA-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG7.0CA-M3/57T.pdf
- Description:
- TVS DIODE 7VWM 12VC DO215AB
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMCG7.0CA-M3/57T 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, 12.0 V clamping voltage (VC) at 200 A peak pulse current, and 1500 W peak pulse power rating with a 10/1000 µs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMCG7.0CA-M3/57T datasheet, SMCG7.0CA-M3/57T pinout, SMCG7.0CA-M3/57T application, or SMCG7.0CA-M3/57T equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification, halogen-free RoHS compliance (M3 suffix), and DO-215AB thermal performance under repetitive surge stress.
Technical Context
This device operates as a voltage-clamped shunt protector, responding within picoseconds to transients exceeding its VWM threshold. Its bidirectional architecture ensures symmetrical clamping in both polarities without polarity marking, making it suitable for AC-coupled or floating signal paths where reverse polarity events are possible.
The SMCG7.0CA-M3/57T leverages glass-passivated junction technology and low incremental surge resistance to maintain stable clamping under high-current surges. Its RθJA of 75 °C/W and TJ max of +150 °C support reliable operation on standard 8.0 mm × 8.0 mm copper pads without active cooling in automotive under-hood and industrial control environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.0 V - Maximum continuous reverse voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR min/max | 7.78 V / 8.60 V at 10 mA - Confirmed breakdown range ensures predictable turn-on across production lot and temperature. |
| VC @ IPPM | 12.0 V at 200 A - Clamping voltage under full-rated 10/1000 µs surge; limits downstream IC stress to safe levels. |
| PPPM | 1500 W - Peak pulse power handling per single transient; supports IEC 61000-4-5 Level 4 immunity testing. |
| TJ max | +150 °C - Junction temperature limit enabling use in AEC-Q101 automotive applications including engine control modules. |
| Package | SMCG (DO-215AB) - Surface-mount gull-wing package with 75 °C/W thermal resistance; optimized for automated placement and reflow. |
| Compliance | AEC-Q101 qualified, halogen-free, RoHS compliant (M3 suffix) - Meets automotive reliability and environmental requirements. |
Pinout & Package
SMCG7.0CA-M3/57T uses the SMCG (DO-215AB) surface-mount package: a bidirectional two-terminal device with no polarity marking. Terminals are matte tin-plated leads solderable per J-STD-002 and JESD 22-B102, rated MSL level 1 (peak reflow 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity; symmetric conduction enables AC line protection without orientation constraints. |
| Terminal 2 | Anode/Cathode (bidirectional) | Electrically identical to Terminal 1; no band marking required; simplifies PCB layout and eliminates assembly polarity errors. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC-coupled or floating differential lines (e.g., CAN FD, RS-485) without external polarity management circuitry. |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and surge endurance - suitable for powertrain and ADAS sensor nodes. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a), improving protection margin for 3.3 V/5 V logic interfaces. |
| Halogen-free & RoHS (M3) | Meets strict environmental compliance for global OEM supply chains while maintaining thermal and mechanical performance identical to E3 variants. |
| MSL Level 1 rating | Allows unlimited floor life and standard reflow profiles up to 260 °C peak - eliminates baking requirements and streamlines SMT manufacturing. |
Applications
| Automotive Sensor Protection | Industrial I/O Port Protection |
|---|---|
Use Scenario: Protecting LIN bus and analog sensor outputs (e.g., pressure, temperature) in engine control units against load dump and inductive switching transients. IC Role / Device Role / Timing Role: Shunt TVS device clamping voltage spikes before they reach MCU ADC inputs or LIN transceivers. Use Value: Prevents latch-up or permanent damage to 5 V-tolerant sensor interface ICs during 100 V/50 ms load dump events per ISO 16750-2. | Use Scenario: Safeguarding PLC digital input modules connected to 24 V DC field wiring exposed to relay coil flyback and ESD events. IC Role / Device Role / Timing Role: Fast-response voltage clamp placed directly at connector entry point to divert surge energy away from optocoupler or Schmitt trigger inputs. Use Value: Maintains functional safety integrity by limiting transient voltage to ≤12.0 V at 200 A, ensuring downstream logic remains within absolute maximum ratings. |
| Automotive Camera Link Protection | Telecom Interface Protection |
Use Scenario: Shielding MIPI CSI-2 or FPD-Link III video data lines in rear-view and surround-view camera modules from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed adjacent to connector to suppress ±8 kV contact ESD per IEC 61000-4-2 without signal distortion. Use Value: Delivers <1 pF typical junction capacitance at zero bias (per family data), preserving signal integrity up to 3 Gbps while meeting AEC-Q101 reliability. | Use Scenario: Protecting Ethernet PHY or PoE-powered device interfaces (e.g., IP cameras, access points) against lightning-induced surges on twisted-pair lines. IC Role / Device Role / Timing Role: Primary-level TVS mounted at RJ45 jack to absorb common-mode surges before reaching magnetics or PHY IC. Use Value: Handles 1500 W peak pulse power per line pair, satisfying IEC 61000-4-5 10/700 µs open-circuit test requirements for Class B equipment. |
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-M3/57T | Unidirectional; lower PPPM (400 W); SMA (DO-214AC) package; higher RθJA (110 °C/W) | Requires polarity-aware layout; unsuitable for AC or floating lines; limited to lower-energy transients | Select only when unidirectional clamping suffices and board space allows larger thermal pad area for derating. |
| SMCJ7.0CA-M3/57T | Same bidirectional function; higher PPPM (1500 W); identical VWM/VBR/VC; SMC (DO-214AB) package with 100 °C/W RθJA | Compatible clamping performance but larger footprint and lower thermal efficiency than SMCG | Use if existing SMC footprint is fixed; otherwise prefer SMCG7.0CA-M3/57T for superior thermal density and automated placement compatibility. |
Compared with SMAJ7.0A-M3/57T and SMCJ7.0CA-M3/57T, the SMCG7.0CA-M3/57T delivers identical 1500 W surge capability in a smaller DO-215AB package with 25 % lower thermal resistance - enabling higher power density and simplified layout for next-generation automotive and industrial modules.
Availability
SMCG7.0CA-M3/57T is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O port hardening, and telecom interface surge suppression requiring stable component supply, long-term lifecycle assurance, and AEC-Q101-compliant sourcing.
Supply support for SMCG7.0CA-M3/57T 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 was developed specifically for high-power-density transient suppression in automotive and industrial environments, combining AEC-Q101 qualification, halogen-free construction, and DO-215AB thermal performance to replace legacy SMC and SMA packages.
FAQ
What does the "CA" suffix indicate in SMCG7.0CA-M3/57T?
The "CA" suffix denotes a bidirectional configuration: the SMCG7.0CA-M3/57T provides symmetrical clamping in both polarities, with no cathode band marking and identical VBR, VC, and IPPM characteristics for positive and negative transients. This distinguishes it from unidirectional variants like SMCG7.0A-M3/57T and enables use on AC-coupled or floating signal paths without polarity constraints.
Is SMCG7.0CA-M3/57T qualified for automotive applications?
Yes, the SMCG7.0CA-M3/57T is AEC-Q101 qualified - verified for automotive-grade reliability including temperature cycling, humidity bias, and surge endurance testing. Its +150 °C maximum junction temperature, MSL Level 1 rating, and halogen-free RoHS compliance (M3 suffix) make it suitable for engine control units, ADAS sensors, and infotainment interfaces per ISO/TS 16949 requirements.
What is the clamping voltage of SMCG7.0CA-M3/57T at rated surge current?
The SMCG7.0CA-M3/57T has a maximum clamping voltage (VC) of 12.0 V at 200 A peak pulse current with a 10/1000 µs waveform. This value is measured under standardized conditions on 8.0 mm × 8.0 mm copper pads and defines the upper voltage limit imposed on protected circuitry during worst-case transient events.
How does the SMCG (DO-215AB) package compare thermally to SMA or SMC packages?
The SMCG (DO-215AB) package used by SMCG7.0CA-M3/57T offers a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W - 32 % lower than the 110 °C/W of SMA packages and 25 % lower than the 100 °C/W of SMC packages. This enables higher sustained power dissipation and improved surge repetition rate capability in compact layouts.
Can SMCG7.0CA-M3/57T be used in place of SMCG7.0A-M3/57T?
No - SMCG7.0CA-M3/57T is bidirectional while SMCG7.0A-M3/57T is unidirectional, with different polarity marking (band = cathode) and forward voltage behavior. Substitution requires verifying that the application's signal path is truly AC-coupled or floating; using SMCG7.0CA-M3/57T in a DC-biased unidirectional circuit may cause unintended conduction or increased leakage.
SMCG7.0CA-M3/57T 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):
- 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-M3/57T FAQ
1.How can I place an order for SMCG7.0CA-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG7.0CA-M3/57T 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 SMCG7.0CA-M3/57T reliable?
The price and inventory of SMCG7.0CA-M3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG7.0CA-M3/57T is usually 5 days.
3.What payment methods are accepted for SMCG7.0CA-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG7.0CA-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG7.0CA-M3/57T?
SMCG7.0CA-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG7.0CA-M3/57T 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 SMCG7.0CA-M3/57T?
For technical support, including SMCG7.0CA-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG7.0CA-M3/57T requirements.
6.How does Aetrix verify that SMCG7.0CA-M3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG7.0CA-M3/57T 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 SMCG7.0CA-M3/57T meets industry standards.
7.What is the process for return or replacement of SMCG7.0CA-M3/57T?
All SMCG7.0CA-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG7.0CA-M3/57T, 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 SMCG7.0CA-M3/57T part is unused and in its original packaging.
Return procedure for SMCG7.0CA-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG7.0CA-M3/57T Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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