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Vishay General Semiconductor - Diodes Division SMCG8.0CA-M3/9AT
- Part No.:
- SMCG8.0CA-M3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG8.0CA-M3/9AT.pdf
- Description:
- TVS DIODE 8VWM 13.6VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,980
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Product details
Overview
SMCG8.0CA-M3/9AT from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 8.0 V stand-off voltage (VWM), 13.6 V maximum clamping voltage (VC) at 50 A peak pulse current (IPPM), and 1500 W peak pulse power dissipation (PPPM) with a 10/1000 µs waveform.
For engineers reviewing the SMCG8.0CA-M3/9AT datasheet, SMCG8.0CA-M3/9AT pinout, SMCG8.0CA-M3/9AT application, or SMCG8.0CA-M3/9AT equivalent, this device is selected for automotive-grade ESD and surge protection on low-voltage signal lines, sensor interfaces, and power rails where AEC-Q101 qualification, halogen-free construction, and bidirectional clamping symmetry are required.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with breakdown voltage (VBR) specified as 8.89–9.83 V at 1 mA test current (IT), enabling consistent clamping during positive and negative transients. Its glass-passivated junction ensures stable leakage performance and fast response time (<1 ns), while the DO-215AB package supports automated SMT placement and meets MSL Level 1 per J-STD-020.
The device delivers 1500 W peak pulse power handling under standardized 10/1000 µs surges, with thermal resistance of 75 °C/W (junction-to-ambient) and 15 °C/W (junction-to-lead), allowing reliable operation up to +150 °C junction temperature. It is qualified to AEC-Q101 and rated for ≤1.0 µA reverse leakage at VWM - critical for low-power sensor and communication line protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - Maximum continuous reverse stand-off voltage before clamping begins; defines safe operating window for 5 V–9 V logic/sensor rails. |
| VBR min/max | 8.89 V / 9.83 V at IT = 1 mA - Ensures tight breakdown tolerance for predictable turn-on during bidirectional transients. |
| VC @ IPPM | 13.6 V at 50 A - Clamping voltage limits downstream IC stress during 10/1000 µs surge events; enables compatibility with 12 V automotive systems. |
| PPPM | 1500 W - Peak pulse power rating confirms robustness against IEC 61000-4-5 Level 4 (4 kV/2 Ω) surges when mounted per recommended 8.0 mm × 8.0 mm copper pads. |
| ID @ VWM | ≤1.0 µA - Ultra-low leakage preserves signal integrity and battery life in always-on sensor nodes and low-power MCU interfaces. |
| TJ max | +150 °C - Supports under-hood automotive deployment and industrial environments without derating below full power. |
| Package | SMCG (DO-215AB) - Surface-mount gull-wing package with matte tin leads; compatible with standard reflow profiles and J-STD-002 solderability requirements. |
Pinout & Package
SMCG8.0CA-M3/9AT uses the SMCG (DO-215AB) surface-mount package - a bidirectional device with no polarity marking; both terminals are electrically symmetrical. The package features gull-wing leads, 0.220–0.245 inch body length, and 0.038–0.058 inch lead width, optimized for high-current surge conduction and thermal dissipation via PCB copper pads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Electrically identical to Terminal 2; no polarity - functions as either anode or cathode depending on transient polarity. |
| Terminal 2 | Anode/Cathode (bidirectional) | Electrically identical to Terminal 1; bidirectional symmetry eliminates orientation constraints during placement. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, ADAS sensors, and infotainment interfaces requiring zero-failure reliability. |
| Halogen-free & RoHS compliant (M3 suffix) | Meets global environmental regulations and JEDEC JESD201 Class 2 whisker resistance, supporting long-term field stability in harsh environments. |
| 1500 W peak pulse power (10/1000 µs) | Withstands repeated ISO 7637-2 Pulse 1/2a/5a surges and IEC 61000-4-5 combination wave transients without degradation. |
| Low clamping ratio (VC/VWM = 1.7) | Minimizes voltage overshoot during clamping - critical for protecting 3.3 V and 5 V logic inputs with tight absolute maximum ratings. |
| MSL Level 1 (260 °C peak) | Enables single-pass reflow assembly without moisture sensitivity concerns, reducing manufacturing risk and cost. |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting analog output pins of pressure, temperature, and position sensors in engine bay and chassis modules exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at sensor connector or MCU input pin to shunt transients before they reach precision ADC front-end. Use Value: Maintains signal fidelity by limiting clamped voltage to 13.6 V while surviving 1500 W surges - preserving sensor accuracy and system uptime in ASIL-B designs. |
Use Scenario: Guarding CAN_H and CAN_L lines in vehicle body control modules and industrial PLC gateways against ESD (±8 kV contact) and surge (IEC 61000-4-5). IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed differential across CAN bus pair to suppress common-mode transients without distorting data timing. Use Value: Enables reliable CAN FD communication up to 5 Mbps by maintaining <1.0 µA leakage at 8.0 V and fast sub-nanosecond response - preventing bit errors during EMC testing. |
| Consumer USB Power Delivery | Smart Meter Communication Port |
Use Scenario: Safeguarding VBUS and CC lines in USB-C PD adapters and portable chargers against hot-plug surges and lightning-induced coupling. IC Role / Device Role / Timing Role: Standoff-rated TVS deployed between USB-C receptacle and controller IC to absorb 10/1000 µs surges without latch-up or leakage drift. Use Value: Halogen-free M3 construction satisfies UL 62368-1 end-product safety requirements while delivering 13.6 V clamping - ensuring compliance with USB-IF electrical specs. |
Use Scenario: Protecting RS-485 and PLC communication ports in smart electricity meters installed in outdoor distribution cabinets subject to lightning-induced surges. IC Role / Device Role / Timing Role: Primary-level TVS on meter's external comms interface, coordinated with secondary GDT or MOV for staged surge suppression. Use Value: 1500 W PPPM rating allows coordination with upstream protectors to meet ANSI C62.41 Category C (6 kV/12 Ω) requirements - extending meter field life beyond 15 years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.0CA | Same VWM (8.0 V) and VC (13.6 V), but lower PPPM (400 W); SMA (DO-214AC) package with higher RθJA (110 °C/W). | Limited to lower-energy transients (e.g., IEC 61000-4-2 ESD only); unsuitable for ISO 7637-2 Pulse 5a or lightning surge. | Select SMAJ8.0CA only for space-constrained consumer boards where 400 W surge margin suffices and thermal budget permits higher junction rise. |
| SMCJ8.0CA | Same VWM (8.0 V) and VC (13.6 V), higher PPPM (1500 W), but larger SMC (DO-214AB) package and non-AEC-Q101 rated base version. | Requires larger PCB area and lacks automotive qualification unless specified with HE3/HM3 suffix. | Choose SMCJ8.0CA-HM3 for AEC-Q101-compliant designs needing identical electrical specs but preferring legacy SMC footprint and supply chain familiarity. |
Compared with SMCG8.0CA-M3/9AT, SMAJ8.0CA offers smaller size but insufficient surge margin for automotive, while SMCJ8.0CA-HM3 matches performance and qualification but demands more board space - making SMCG8.0CA-M3/9AT optimal for next-gen compact, AEC-Q101–compliant modules.
Availability
SMCG8.0CA-M3/9AT is available at Aetrix Electronics and suitable for automotive sensor protection, industrial CAN bus interfaces, and smart meter communication ports requiring stable component supply, halogen-free compliance, and AEC-Q101 validation.
Supply support for SMCG8.0CA-M3/9AT 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 high-reliability diodes, MOSFETs, optoelectronics, and passive components for automotive, industrial, and computing markets.
The SMCG series was developed specifically for AEC-Q101–compliant, high-power transient suppression in space-constrained automotive and industrial applications - combining DO-215AB's thermal efficiency with bidirectional symmetry and halogen-free materials.
FAQ
What is the clamping voltage of SMCG8.0CA-M3/9AT at its rated peak pulse current?
The SMCG8.0CA-M3/9AT has a maximum clamping voltage (VC) of 13.6 V at 50 A peak pulse current (IPPM) under a 10/1000 µs waveform. This value is measured per standard test conditions and reflects the actual voltage seen by protected circuitry during worst-case surge events - confirming compatibility with 12 V automotive systems and 5 V logic interfaces. The SMCG8.0CA-M3/9AT maintains this clamping performance across its full operating temperature range.
Is SMCG8.0CA-M3/9AT suitable for automotive applications?
Yes, SMCG8.0CA-M3/9AT is AEC-Q101 qualified and explicitly designed for automotive use, including engine control units, ADAS sensors, and body electronics. Its halogen-free (M3) construction, MSL Level 1 rating, and guaranteed performance from −55 °C to +150 °C junction temperature meet stringent OEM requirements. The SMCG8.0CA-M3/9AT appears in Vishay's official AEC-Q101 qualified devices list and is referenced in automotive design guides for CAN, LIN, and sensor line protection.
How does the bidirectional nature of SMCG8.0CA-M3/9AT affect its PCB layout?
The SMCG8.0CA-M3/9AT has no polarity marking and functions identically in both directions - eliminating orientation constraints during placement and simplifying layout. Engineers can route it symmetrically across differential lines (e.g., CAN_H/CAN_L) or place it between any two nodes requiring bidirectional clamping. Its DO-215AB package requires 8.0 mm × 8.0 mm copper pads per terminal for optimal thermal and surge performance, as specified in the Vishay datasheet for SMCG8.0CA-M3/9AT.
What is the reverse leakage current specification for SMCG8.0CA-M3/9AT at its stand-off voltage?
The SMCG8.0CA-M3/9AT exhibits a maximum reverse leakage current (ID) of 1.0 µA at its 8.0 V stand-off voltage (VWM), measured at 25 °C. This ultra-low leakage ensures minimal impact on battery-powered sensor nodes and high-impedance analog inputs. The SMCG8.0CA-M3/9AT maintains ≤5.0 µA leakage up to +125 °C, supporting reliable operation in thermally demanding environments without signal drift or power loss.
Does SMCG8.0CA-M3/9AT require derating at elevated ambient temperatures?
Yes, SMCG8.0CA-M3/9AT must be derated above TA = 25 °C per Figure 2 in the Vishay datasheet (Document Number: 88457). Its peak pulse power (PPPM) decreases linearly to ~75% at +85 °C ambient and ~50% at +125 °C when mounted on the specified 8.0 mm × 8.0 mm copper pads. The SMCG8.0CA-M3/9AT's thermal resistance values (RθJA = 75 °C/W, RθJL = 15 °C/W) enable accurate junction temperature estimation to ensure operation remains within the +150 °C maximum limit.
SMCG8.0CA-M3/9AT 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):
- 8V
- Voltage - Breakdown (Min):
- 8.89V
- Voltage - Clamping (Max) @ Ipp:
- 13.6V
- Current - Peak Pulse (10/1000µs):
- 110.3A
- 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)
SMCG8.0CA-M3/9AT FAQ
1.How can I place an order for SMCG8.0CA-M3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG8.0CA-M3/9AT 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 SMCG8.0CA-M3/9AT reliable?
The price and inventory of SMCG8.0CA-M3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG8.0CA-M3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG8.0CA-M3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG8.0CA-M3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG8.0CA-M3/9AT?
SMCG8.0CA-M3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG8.0CA-M3/9AT 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 SMCG8.0CA-M3/9AT?
For technical support, including SMCG8.0CA-M3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG8.0CA-M3/9AT requirements.
6.How does Aetrix verify that SMCG8.0CA-M3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG8.0CA-M3/9AT 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 SMCG8.0CA-M3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG8.0CA-M3/9AT?
All SMCG8.0CA-M3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG8.0CA-M3/9AT, 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 SMCG8.0CA-M3/9AT part is unused and in its original packaging.
Return procedure for SMCG8.0CA-M3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG8.0CA-M3/9AT Tags
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