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Vishay General Semiconductor - Diodes Division SMCG8.0CA-E3/9AT
- Part No.:
- SMCG8.0CA-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG8.0CA-E3/9AT.pdf
- Description:
- TVS DIODE 8VWM 13.6VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,327
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Product details
Overview
SMCG8.0CA-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 8.0 V stand-off voltage (VWM), 13.6 V maximum clamping voltage (VC) at 110.3 A peak pulse current (IPPM), and 1500 W peak pulse power dissipation (PPPM) with a 10/1000 µs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMCG8.0CA-E3/9AT datasheet, SMCG8.0CA-E3/9AT pinout, SMCG8.0CA-E3/9AT application, or SMCG8.0CA-E3/9AT equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification, MSL Level 1 moisture sensitivity, and compatibility with 8.0 mm × 8.0 mm copper pad layouts per JEDEC standards.
Technical Context
This device operates as a silicon avalanche diode with glass-passivated junction, delivering symmetrical breakdown behavior in both polarities due to its bidirectional CA construction. Its low incremental surge resistance and fast response time (<1 ns) enable effective suppression of ESD, lightning-induced transients, and inductive switching spikes.
The SMCG8.0CA-E3/9AT is rated for -55 °C to +150 °C operating junction temperature, exhibits 75 °C/W junction-to-ambient thermal resistance (RθJA), and maintains stable clamping performance under repetitive surge conditions when mounted on specified 8.0 mm × 8.0 mm copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - Maximum continuous reverse working voltage before clamping activation |
| VBR min/max | 8.89 V / 9.83 V at 1 mA - Ensures reliable breakdown onset within tight tolerance band |
| VC @ IPPM | 13.6 V at 110.3 A - Limits protected circuit voltage during 10/1000 µs surge events |
| PPPM | 1500 W - Sustains high-energy transients without failure under standardized waveform |
| ID @ VWM | 50 µA - Low leakage preserves signal integrity in high-impedance sensing paths |
| TJ max | +150 °C - Supports operation in under-hood automotive and industrial ambient environments |
| MSL Level | Level 1 (per J-STD-020) - Enables standard reflow assembly without dry-pack handling |
Pinout & Package
Package: SMCG (DO-215AB) - surface-mount gull-wing leaded case with matte tin-plated terminals, UL 94 V-0 molding compound, and no polarity marking for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Provides symmetrical conduction path for positive and negative surges |
| Cathode | Transient return path (bidirectional) | Electrically identical to anode; no functional distinction in CA devices |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Glass-passivated junction | Enhances long-term stability and reduces parameter drift under thermal stress |
| Low-profile DO-215AB package | Enables automated placement and supports compact PCB layouts in space-constrained modules |
| 1500 W peak pulse power | Handles high-energy transients common in 12 V/24 V vehicle power domains and industrial controls |
| MSL Level 1 rating | Permits standard SMT reflow without baking or special handling protocols |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ESD in engine control units. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed directly at connector entry point to shunt transients before reaching IC pins. Use Value: Maintains signal fidelity with 13.6 V clamping while surviving repeated 1500 W surges per ISO 7637-2 Pulse 5a requirements. | Use Scenario: Safeguarding PLC digital input modules against field-wiring induced surges from relay coils and motor drives. IC Role / Device Role / Timing Role: Primary overvoltage protection element across input terminals, coordinated with series current-limiting resistors. Use Value: Delivers consistent 8.0 V stand-off and symmetrical clamping to prevent false triggering in 24 V DC industrial logic circuits. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Shielding Ethernet PHY front-end and PoE injectors from lightning-induced surges on unshielded twisted-pair cabling. IC Role / Device Role / Timing Role: First-stage transient suppressor on differential data lines, preceding common-mode chokes and receiver ICs. Use Value: Provides sub-1 ns response and matched bidirectional VBR (8.89–9.83 V) to preserve signal integrity in high-speed data links. | Use Scenario: Input-stage surge protection in AC-DC adapters for smart home devices exposed to mains-borne transients. IC Role / Device Role / Timing Role: Secondary protection after MOV-based primary stage, absorbing residual energy and limiting let-through voltage. Use Value: Clamps to 13.6 V at 110.3 A, reducing downstream capacitor stress and improving adapter MTBF in harsh electrical environments. |
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) and smaller SMA (DO-214AC) package | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a compliance | Select SMAJ8.0CA only for cost-sensitive consumer applications with <500 W surge exposure |
| SMCJ8.0CA | Identical VWM (8.0 V) and higher PPPM (1500 W), but larger SMC (DO-214AB) package with 100 A IPPM | Requires more PCB area; thermal performance differs due to RθJA = 35 °C/W vs. SMCG's 75 °C/W | Choose SMCJ8.0CA when board layout allows larger footprint and higher thermal mass is available |
Compared with SMAJ8.0CA and SMCJ8.0CA, the SMCG8.0CA-E3/9AT delivers equivalent clamping performance in a lower-profile, AEC-Q101-qualified package optimized for automated placement and automotive under-hood thermal environments - making it the preferred choice where MSL Level 1 handling and space constraints are critical.
Availability
SMCG8.0CA-E3/9AT is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O interface, and telecom line interface requiring stable component supply and full traceability.
Supply support for SMCG8.0CA-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, and protection devices with broad automotive and industrial qualification coverage.
The SMCG series was developed specifically for high-reliability bidirectional transient suppression in space-constrained, thermally demanding applications - emphasizing AEC-Q101 compliance, low-profile packaging, and repeatable clamping performance.
FAQ
What is the clamping voltage of the SMCG8.0CA-E3/9AT under a 10/1000 µs surge?
The SMCG8.0CA-E3/9AT has a maximum clamping voltage (VC) of 13.6 V when subjected to its rated peak pulse current of 110.3 A using a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and ensures predictable voltage limiting during standardized surge events. The SMCG8.0CA-E3/9AT maintains this clamping performance across its full operating temperature range.
Is the SMCG8.0CA-E3/9AT suitable for automotive applications?
Yes, the SMCG8.0CA-E3/9AT is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. It meets stringent requirements for temperature cycling, high-temperature reverse bias, and ESD immunity. Its 1500 W PPPM rating supports compliance with ISO 7637-2 Pulse 5a load dump testing. The SMCG8.0CA-E3/9AT is commonly used in engine control units and ADAS sensor interfaces.
Does the SMCG8.0CA-E3/9AT have polarity markings on the package?
No, the SMCG8.0CA-E3/9AT does not feature polarity markings because it is a bidirectional device - both terminals function identically as symmetrical avalanche junctions. Unlike unidirectional variants (e.g., SMCG8.0A), the CA suffix indicates no cathode band or other orientation indicator is present. The SMCG8.0CA-E3/9AT may be mounted in either direction without affecting electrical performance.
What is the thermal resistance of the SMCG8.0CA-E3/9AT?
The SMCG8.0CA-E3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on the recommended 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. Its junction-to-lead resistance (RθJL) is 15 °C/W. These values assume convection cooling only and are critical for calculating safe power derating above 25 °C ambient. The SMCG8.0CA-E3/9AT must be applied within these thermal limits to ensure 150 °C maximum junction temperature compliance.
What does the "E3/9AT" suffix indicate in SMCG8.0CA-E3/9AT?
The "E3" denotes RoHS-compliant, industrial-grade plating and packaging, while "9AT" specifies the 13-inch diameter plastic tape-and-reel delivery format containing 3500 units per reel. This packaging enables high-volume automated pick-and-place assembly. The SMCG8.0CA-E3/9AT is distinct from "57T" variants (850-unit 7-inch reels) and "HE3" versions (AEC-Q101 qualified with E3 plating). All share identical electrical characteristics.
SMCG8.0CA-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):
- 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-E3/9AT FAQ
1.How can I place an order for SMCG8.0CA-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG8.0CA-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 SMCG8.0CA-E3/9AT reliable?
The price and inventory of SMCG8.0CA-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 SMCG8.0CA-E3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG8.0CA-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG8.0CA-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG8.0CA-E3/9AT?
SMCG8.0CA-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG8.0CA-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 SMCG8.0CA-E3/9AT?
For technical support, including SMCG8.0CA-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG8.0CA-E3/9AT requirements.
6.How does Aetrix verify that SMCG8.0CA-E3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG8.0CA-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 SMCG8.0CA-E3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG8.0CA-E3/9AT?
All SMCG8.0CA-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG8.0CA-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 SMCG8.0CA-E3/9AT part is unused and in its original packaging.
Return procedure for SMCG8.0CA-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG8.0CA-E3/9AT Tags
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