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Vishay General Semiconductor - Diodes Division SMCG11CA-E3/9AT
- Part No.:
- SMCG11CA-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG11CA-E3/9AT.pdf
- Description:
- TVS DIODE 11VWM 18.2VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,914
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Product details
Overview
SMCG11CA-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 12.2 V minimum breakdown voltage (VBR), 11 V standoff voltage (VWM), 1500 W peak pulse power (10/1000 µs), <1.0 µA reverse leakage at VWM, and clamps to ≤18.2 V at 82.4 A peak surge current - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMCG11CA-E3/9AT datasheet, SMCG11CA-E3/9AT pinout, SMCG11CA-E3/9AT application, or SMCG11CA-E3/9AT equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, DO-215AB mechanical data, clamping performance under 10/1000 µs transients, and direct alternatives for bidirectional TVS selection in harsh-environment designs.
Technical Context
This device operates as a bidirectional avalanche diode, symmetrically clamping voltage surges in both polarities without polarity marking. Its glass-passivated junction ensures stable VBR tolerance (±5% typical), low incremental surge resistance, and fast response time (<1.0 ns), enabling effective suppression of ESD, lightning-induced transients, and inductive switching spikes.
Rated for -55 °C to +150 °C junction temperature, it meets AEC-Q101 stress testing requirements and is qualified for automotive-grade reliability. The SMCG11CA-E3/9AT uses matte tin-plated leads compliant with J-STD-002 and JESD22-B102, and achieves MSL Level 1 per J-STD-020 with 260 °C reflow peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 11 V - maximum continuous reverse operating voltage before conduction begins; defines safe working range for protected circuitry. |
| VBR (min/max) | 12.2 V / 13.5 V at 1.0 mA - guaranteed avalanche initiation window; ensures predictable turn-on during transients. |
| VC @ IPPM | ≤18.2 V at 82.4 A - clamped voltage under 10/1000 µs surge; determines worst-case overvoltage seen by downstream ICs. |
| PPPM | 1500 W - peak pulse power handling capability; supports high-energy transients like ISO 7637-2 Pulse 5a. |
| ID @ VWM | <1.0 µA - ultra-low leakage at rated standoff; avoids signal distortion or bias shift in high-impedance circuits. |
| TJ max | +150 °C - maximum junction temperature; enables operation in under-hood automotive or industrial enclosures. |
| Package | SMCG (DO-215AB) - surface-mount, low-profile case with 8.0 mm × 8.0 mm copper pad thermal design; optimized for automated placement. |
Pinout & Package
SMCG11CA-E3/9AT uses the SMCG (DO-215AB) package: a gull-wing, dual-terminal SMD case with no polarity marking for bidirectional operation. Terminals are matte tin-plated and solderable per J-STD-002. Mounting requires 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal for rated power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity; no functional distinction - symmetrical clamping. |
| Terminal 2 | Anode/Cathode (bidirectional) | Electrically identical to Terminal 1; device conducts equally in both directions above VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces. |
| 1500 W peak pulse power (10/1000 µs) | Withstands high-energy transients such as load dump and ISO 7637-2 Pulse 5a without degradation. |
| Low clamping ratio (VC/VBR ≈ 1.43) | Minimizes overvoltage stress on protected ICs - critical for 3.3 V or 5 V logic and analog front-ends. |
| MSL Level 1, 260 °C peak reflow | Enables standard lead-free SMT assembly without moisture sensitivity concerns or baking requirements. |
| Glass passivated junction | Ensures long-term parameter stability and resistance to humidity, contamination, and thermal cycling. |
Applications
| Automotive Sensor Protection | Industrial I/O Port Protection |
|---|---|
|
Use Scenario: Protecting CAN, LIN, or analog sensor outputs (e.g., pressure, temperature) from ESD and load-dump transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across differential or single-ended signal lines upstream of interface ICs. Use Value: Limits transient voltage to ≤18.2 V while maintaining <1.0 µA leakage - preserving signal integrity and preventing latch-up in 5 V sensor signal chains. |
Use Scenario: Safeguarding PLC digital input modules against field-wiring induced surges and ground-bounce events. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC input channels, mounted directly at connector entry points. Use Value: Absorbs 1500 W pulses without failure, enabling compliance with IEC 61000-4-5 Level 3 (2 kV/12 Ω) immunity testing. |
| Telecom Line Interface | Consumer Power Adapter Protection |
|
Use Scenario: Transient suppression on Ethernet PHY power rails (e.g., MDI power) and auxiliary control lines in PoE-powered devices. IC Role / Device Role / Timing Role: Secondary protection stage after primary GDT or MOV, providing fast-response clamping for sub-microsecond spikes. Use Value: Sub-1 ns response time and low VC ensure sensitive PHY ICs remain within absolute maximum ratings during fast-rising EFT bursts. |
Use Scenario: Input-stage surge protection in USB-C PD adapters and AC/DC wall adapters exposed to mains-borne transients. IC Role / Device Role / Timing Role: Bidirectional clamp across secondary-side 5–20 V output rails to protect USB controller and battery management ICs. Use Value: 11 V VWM aligns with common adapter output voltages; 1500 W rating covers IEC 61000-4-4 EFT and surge test margins. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ11CA | Same VWM (11 V), lower PPPM (400 W), SMA (DO-214AC) package, higher RθJA (110 °C/W). | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a or high-current load dump. | Select when cost or board space is constrained and surge energy remains below 400 W. |
| SMBJ11CA | Same VWM (11 V), PPPM = 600 W, SMB (DO-214AA) package, RθJA = 90 °C/W, not AEC-Q101 qualified. | Acceptable for industrial/commercial use but lacks automotive qualification and 1500 W headroom. | Choose for non-automotive designs where AEC-Q101 is not required and 600 W suffices. |
Compared with SMAJ11CA and SMBJ11CA, SMCG11CA-E3/9AT delivers 2.5× and 2.5× higher peak pulse power respectively, AEC-Q101 qualification for automotive deployment, and superior thermal performance via DO-215AB's lower RθJA (75 °C/W), enabling reliable operation under sustained surge conditions.
Availability
SMCG11CA-E3/9AT is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer power adapter designs requiring stable component supply and AEC-Q101-compliant surge immunity.
Supply support for SMCG11CA-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, efficiency, and application-specific optimization.
The SMCG series targets high-power transient suppression in space-constrained, thermally demanding environments - engineered specifically for automotive, industrial, and telecom systems needing AEC-Q101-qualified, high-PPPM TVS diodes in low-profile SMD packages.
FAQ
What is the breakdown voltage range for SMCG11CA-E3/9AT?
The SMCG11CA-E3/9AT has a guaranteed breakdown voltage range of 12.2 V to 13.5 V at 1.0 mA test current, measured per ANSI/IEEE C62.35. This tight VBR window ensures consistent clamping behavior across production lots and supports precise overvoltage margining in safety-critical designs.
Is SMCG11CA-E3/9AT suitable for automotive applications?
Yes, SMCG11CA-E3/9AT is AEC-Q101 qualified and explicitly rated for automotive use. Its construction - glass-passivated junction, MSL Level 1 rating, and -55 °C to +150 °C operating range - meets stringent reliability requirements for engine control units, ADAS sensors, and body electronics where transient immunity is mission-critical.
What does the "CA" suffix indicate in SMCG11CA-E3/9AT?
The "CA" suffix in SMCG11CA-E3/9AT denotes a bidirectional configuration, meaning the device provides symmetrical transient suppression in both polarities. Unlike unidirectional variants (e.g., SMCG11A), it has no cathode band marking and clamps identically whether positive or negative transients exceed VBR.
How is thermal performance specified for SMCG11CA-E3/9AT?
SMCG11CA-E3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. This value enables accurate junction temperature estimation under pulsed or continuous power dissipation, supporting thermal design validation in high-density layouts.
What packaging format does SMCG11CA-E3/9AT ship in?
SMCG11CA-E3/9AT ships in 13-inch diameter plastic tape and reel format (package code 9AT), with 3500 units per reel. This format supports high-speed automated pick-and-place assembly and is compatible with standard SMT feeders used in automotive and industrial manufacturing lines.
SMCG11CA-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):
- 11V
- Voltage - Breakdown (Min):
- 12.2V
- Voltage - Clamping (Max) @ Ipp:
- 18.2V
- Current - Peak Pulse (10/1000µs):
- 82.4A
- 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)
SMCG11CA-E3/9AT FAQ
1.How can I place an order for SMCG11CA-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG11CA-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 SMCG11CA-E3/9AT reliable?
The price and inventory of SMCG11CA-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 SMCG11CA-E3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG11CA-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG11CA-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG11CA-E3/9AT?
SMCG11CA-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG11CA-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 SMCG11CA-E3/9AT?
For technical support, including SMCG11CA-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG11CA-E3/9AT requirements.
6.How does Aetrix verify that SMCG11CA-E3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG11CA-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 SMCG11CA-E3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG11CA-E3/9AT?
All SMCG11CA-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG11CA-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 SMCG11CA-E3/9AT part is unused and in its original packaging.
Return procedure for SMCG11CA-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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