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Vishay General Semiconductor - Diodes Division SMCG9.0CA-E3/9AT
- Part No.:
- SMCG9.0CA-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG9.0CA-E3/9AT.pdf
- Description:
- TVS DIODE 9VWM 15.4VC DO215AB
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMCG9.0CA-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 9.0 V stand-off voltage (VWM), 15.4 V maximum clamping voltage (VC) at 97.4 A peak pulse current (IPPM), and 1500 W peak pulse power dissipation (PPPM) under 10/1000 µs waveform - ideal for safeguarding automotive sensor interfaces and industrial I/O circuits against ESD and load dump transients.
For engineers reviewing the SMCG9.0CA-E3/9AT datasheet, SMCG9.0CA-E3/9AT pinout, SMCG9.0CA-E3/9AT application, or SMCG9.0CA-E3/9AT equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification, MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads per terminal.
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 enable effective suppression of sub-microsecond transients such as ISO 7637-2 pulses and IEC 61000-4-2 ESD events.
The SMCG9.0CA-E3/9AT is rated for -55 °C to +150 °C operating junction temperature, with thermal resistance RθJA = 75 °C/W and RθJL = 15 °C/W, supporting reliable operation in under-hood automotive environments and high-temperature industrial control modules without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin for 5 V–9 V logic/sensor rails. |
| VBR min/max | 10.0 V / 11.1 V at IT = 1.0 mA - Confirmed bidirectional breakdown threshold ensures symmetric protection across polarity reversals. |
| VC @ IPPM | 15.4 V at 97.4 A - Clamping voltage under 10/1000 µs surge defines worst-case stress on downstream ICs during transient events. |
| PPPM | 1500 W - Peak pulse power handling capability determines survivability against high-energy transients like automotive load dump. |
| ID @ VWM | 10 µA - Low leakage at stand-off voltage minimizes quiescent power loss and avoids false triggering in high-impedance signal paths. |
| TJ max | +150 °C - Enables use in engine control units, motor drives, and other high-temperature embedded systems without derating. |
| MSL Level | Level 1 (per J-STD-020) - Supports standard reflow profiles up to 260 °C peak without baking or special handling. |
Pinout & Package
Package: SMCG (DO-215AB) - surface-mount gull-wing package with matte tin-plated leads, 0.220"–0.245" body width, 0.024"–0.040" lead thickness, and 0.310" overall length. Complies with UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (bidirectional) | Accepts surge current in either polarity; no polarity marking on device body per bidirectional design. |
| Cathode | Transient current exit (bidirectional) | Completes low-impedance path to ground or return rail during clamping; electrically identical to anode in CA configuration. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including powertrain, chassis, and ADAS subsystems per stress test requirements. |
| Glass passivated junction | Ensures stable breakdown characteristics and long-term reliability under thermal cycling and humidity exposure. |
| Low profile gull-wing leads | Enables automated pick-and-place assembly and supports IPC-A-610 Class 2/3 solder joint formation. |
| 1500 W peak pulse power | Provides margin against ISO 16750-2 Pulse 5a (load dump) and IEC 61000-4-5 Combination Wave surges. |
| MSL Level 1 rating | Eliminates pre-bake requirement and allows direct placement into standard lead-free reflow profiles. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) in engine control modules from ESD and switching transients. IC Role / Device Role: Bidirectional clamping element placed between signal line and ground, absorbing energy while limiting voltage seen by protected IC. Use Value: Maintains signal integrity during ISO 10605 ESD events (±15 kV air, ±8 kV contact) and prevents latch-up or damage to 3.3 V/5 V interface ICs. | Use Scenario: Safeguarding digital input channels on programmable logic controllers exposed to inductive kickback from solenoids and relay coils. IC Role / Device Role: Primary overvoltage clamp on 24 V DC input terminals, shunting surge current away from optocoupler input stages. Use Value: Withstands repeated 10/1000 µs surges up to 1500 W, extending system uptime and reducing field failures in factory automation environments. |
| Telecom Line Interface | Consumer Power Adapter Protection |
Use Scenario: Protecting Ethernet PHY interfaces and PoE injectors from lightning-induced surges on unshielded twisted-pair cabling. IC Role / Device Role: Secondary-level TVS placed after common-mode chokes, clamping differential-mode transients on data pairs. Use Value: Symmetrical 10.0–11.1 V breakdown enables balanced clamping without skew, preserving signal timing margins in 100BASE-TX and 1000BASE-T links. | Use Scenario: Input-stage surge suppression in USB-C PD adapters and AC-DC wall adapters subjected to mains-borne transients. IC Role / Device Role: Stand-off clamp on secondary-side 5–20 V output rails, preventing overvoltage propagation to connected devices. Use Value: 9.0 V VWM aligns with USB PD 3.0 variable output ranges; 15.4 V VC ensures compliance with IEC 62368-1 touch-safe limits under fault conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ9.0A-E3/57T | Unidirectional; same VWM (9.0 V), VC = 14.4 V at 104 A; lower PPPM (400 W); SMA (DO-214AC) package. | Limited to single-polarity circuits; unsuitable for AC-coupled or bidirectional signal lines. | Select only when polarity is fixed and surge energy is ≤400 W; requires PCB redesign due to different footprint. |
| TPSMD9.0A | Unidirectional; VWM = 9.0 V, VC = 14.4 V at 104 A; same 1500 W PPPM; SMC (DO-214AB) package; RoHS compliant. | Lacks AEC-Q101 qualification; not validated for automotive temperature cycling or humidity testing. | Preferred for industrial/commercial designs where automotive qualification is unnecessary; drop-in replacement only if SMC pad layout matches. |
Compared with SMCG9.0CA-E3/9AT, SMAJ9.0A-E3/57T offers lower surge capacity and unidirectional operation, while TPSMD9.0A matches power rating but omits automotive qualification - making SMCG9.0CA-E3/9AT the sole choice for AEC-Q101–mandated bidirectional protection in harsh environments.
Availability
SMCG9.0CA-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 full traceability.
Supply support for SMCG9.0CA-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, automotive qualification, and high-volume manufacturability.
The SMCG series is engineered specifically for high-energy transient suppression in automotive and industrial applications, combining AEC-Q101 validation, robust DO-215AB packaging, and precise bidirectional clamping performance.
FAQ
What is the clamping voltage of SMCG9.0CA-E3/9AT under a 10/1000 µs surge?
The SMCG9.0CA-E3/9AT has a maximum clamping voltage (VC) of 15.4 V when subjected to its rated peak pulse current of 97.4 A under the standardized 10/1000 µs waveform. This value is measured across the device terminals during transient conduction and defines the upper voltage limit imposed on protected circuitry - critical for ensuring compatibility with 3.3 V, 5 V, or 9 V logic interfaces. The SMCG9.0CA-E3/9AT maintains this clamping performance bidirectionally.
Is SMCG9.0CA-E3/9AT qualified for automotive applications?
Yes, SMCG9.0CA-E3/9AT is AEC-Q101 qualified, having passed stress tests including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing (UHAST). This qualification confirms its suitability for automotive powertrain, body electronics, and ADAS systems where reliability under thermal and mechanical stress is mandatory. The SMCG9.0CA-E3/9AT meets all requirements specified in the AEC-Q101 Rev D standard.
What does the "CA" suffix indicate in SMCG9.0CA-E3/9AT?
The "CA" suffix in SMCG9.0CA-E3/9AT denotes a bidirectional transient voltage suppressor configuration, meaning the device exhibits symmetrical breakdown and clamping behavior in both forward and reverse directions. Unlike unidirectional variants (e.g., SMCG9.0A), the CA version has no cathode marking and is used where signal lines may experience polarity reversal or AC-coupled transients - such as in CAN bus, RS-485, or audio line protection. The SMCG9.0CA-E3/9AT delivers identical VBR and VC in both directions.
What is the maximum operating temperature for SMCG9.0CA-E3/9AT?
The SMCG9.0CA-E3/9AT has a maximum junction temperature (TJ max) of +150 °C and an operating temperature range of -55 °C to +150 °C. This rating enables deployment in under-hood automotive environments, motor drive controls, and industrial enclosures without thermal derating up to ambient temperatures of approximately +125 °C (depending on power dissipation and PCB copper area). The SMCG9.0CA-E3/9AT's thermal resistance values (RθJA = 75 °C/W, RθJL = 15 °C/W) support this extended range when mounted per recommended 8.0 mm × 8.0 mm pad layout.
Does SMCG9.0CA-E3/9AT require special handling during PCB assembly?
No, SMCG9.0CA-E3/9AT is rated MSL Level 1 per J-STD-020, meaning it can be stored indefinitely at ambient conditions and processed through standard lead-free reflow profiles with peak temperatures up to 260 °C without baking or dry-pack requirements. Its matte tin-plated gull-wing leads comply with J-STD-002 and JESD 22-B102 for solderability, and the device supports automated placement per IPC-7351B footprint guidelines for DO-215AB. The SMCG9.0CA-E3/9AT is optimized for high-yield SMT manufacturing in volume production.
SMCG9.0CA-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):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 15.4V
- Current - Peak Pulse (10/1000µs):
- 97.4A
- 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)
SMCG9.0CA-E3/9AT FAQ
1.How can I place an order for SMCG9.0CA-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG9.0CA-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 SMCG9.0CA-E3/9AT reliable?
The price and inventory of SMCG9.0CA-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 SMCG9.0CA-E3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG9.0CA-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG9.0CA-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG9.0CA-E3/9AT?
SMCG9.0CA-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG9.0CA-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 SMCG9.0CA-E3/9AT?
For technical support, including SMCG9.0CA-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG9.0CA-E3/9AT requirements.
6.How does Aetrix verify that SMCG9.0CA-E3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG9.0CA-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 SMCG9.0CA-E3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG9.0CA-E3/9AT?
All SMCG9.0CA-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG9.0CA-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 SMCG9.0CA-E3/9AT part is unused and in its original packaging.
Return procedure for SMCG9.0CA-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG9.0CA-E3/9AT Tags
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