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Vishay General Semiconductor - Diodes Division SMCG90CA-E3/9AT
- Part No.:
- SMCG90CA-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG90CA-E3/9AT.pdf
- Description:
- TVS DIODE 90VWM 146VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,328
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Product details
Overview
SMCG90CA-E3/9AT from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) surface-mount package, designed for robust overvoltage protection of sensitive electronics. It features a 90 V stand-off voltage (VWM), 1500 W peak pulse power rating (10/1000 µs), clamping voltage of 146 V at 10.3 A IPPM, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SMCG90CA-E3/9AT datasheet, SMCG90CA-E3/9AT pinout, SMCG90CA-E3/9AT application, or SMCG90CA-E3/9AT equivalent, this device is selected for high-energy surge suppression in bidirectional signal lines, power rails, and sensor interfaces where low-profile mounting, fast response (<1 ns), and stable clamping under repetitive transients are critical.
Technical Context
The SMCG90CA-E3/9AT operates as a bidirectional avalanche diode with symmetrical breakdown characteristics - minimum VBR = 100 V and maximum VBR = 111 V at 1 mA test current. Its glass-passivated junction ensures stable leakage performance (ID ≤ 1.0 µA at VWM) and long-term reliability under thermal cycling.
Designed for transient immunity per IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and ISO 7637-2 (automotive load dump), it delivers consistent clamping behavior across -55 °C to +150 °C operating junction temperature, supported by RθJA = 75 °C/W and RθJL = 15 °C/W thermal metrics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 90 V - Maximum continuous reverse working voltage before clamping initiates; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 100–111 V at 1 mA - Symmetrical bidirectional avalanche threshold; ensures predictable turn-on during positive/negative transients. |
| VC (Clamping Voltage) | 146 V at IPPM = 10.3 A (10/1000 µs) - Peak voltage seen by protected circuit during worst-case surge; determines downstream component stress. |
| PPPM (Peak Pulse Power) | 1500 W - Sustains high-energy surges without failure; validated on 8.0 mm × 8.0 mm copper pads per JEDEC standards. |
| ID (Reverse Leakage) | ≤1.0 µA at VWM - Minimal standby power loss and signal integrity impact in high-impedance circuits like sensor bias networks. |
| TJ max | +150 °C - Enables operation in under-hood automotive environments and industrial enclosures without derating penalties. |
| AEC-Q101 Qualified | Yes - Validated for automotive electronic modules including body control units, ADAS sensors, and infotainment power supplies. |
Pinout & Package
Package: SMCG (DO-215AB) - low-profile, gull-wing surface-mount case with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. No polarity marking on bidirectional variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional avalanche terminals | Interchangeable connection points; no cathode band marking; identical clamping behavior in both directions. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines (e.g., CAN bus, RS-485, differential sensors) without polarity concerns. |
| 1500 W peak pulse rating | Withstands severe ISO 7637-2 Pulse 5a (load dump) events up to 120 V/350 ms in automotive 12 V systems when properly heatsinked. |
| AEC-Q101 qualification | Validated for temperature cycling, humidity bias, mechanical shock, and ESD per automotive reliability requirements - no additional qualification needed for Tier 1 designs. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles; no moisture sensitivity handling required prior to assembly. |
| Glass-passivated junction | Ensures stable VBR and low ID over 10+ years in harsh environments; eliminates risk of parametric drift due to surface contamination. |
Applications
| Automotive Sensor Protection | Industrial RS-485 Interface |
|---|---|
|
Use Scenario: Protecting MEMS pressure sensor outputs in engine control modules exposed to load dump and inductive switching noise. IC Role / Device Role: Bidirectional TVS placed across differential analog output pins to clamp ±150 V transients without distorting small-signal accuracy. Use Value: Prevents sensor IC latch-up or permanent damage while maintaining <1.0 µA leakage to avoid DC offset errors in 24-bit ADC front-ends. |
Use Scenario: Shielding RS-485 transceivers in factory automation PLCs from ground loop surges and lightning-induced common-mode spikes. IC Role / Device Role: Connected between A/B lines and ground to suppress differential and common-mode transients up to 1 kV/1.2/50 µs. Use Value: Maintains data integrity at 10 Mbps by limiting clamped voltage to 146 V - well below RS-485 receiver absolute maximum ratings (±25 V). |
| Consumer USB-C Port ESD | Telecom DSL Line Protection |
|
Use Scenario: Safeguarding USB-C CC and SBU pins against IEC 61000-4-2 ±15 kV contact discharge in portable docking stations. IC Role / Device Role: Low-capacitance bidirectional TVS placed inline with high-speed auxiliary signal paths. Use Value: Delivers sub-nanosecond response with <0.5 pF junction capacitance (typ.) - avoids signal integrity degradation at 5 Gbps USB 3.2 Gen 2 speeds. |
Use Scenario: Front-end protection of ADSL/VDSL line drivers in residential gateways subjected to induced surges from nearby power lines. IC Role / Device Role: Mounted across tip/ring pair to absorb longitudinal surges up to 10/700 µs waveform per ITU-T K.20. Use Value: Clamps to 146 V while sustaining 1500 W - exceeds GR-1089-CORE Level 3 requirements for telecom central office 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 |
|---|---|---|---|
| SMAJ90A-E3/57T | Unidirectional; same VWM (90 V), but lacks symmetrical clamping - requires correct polarity orientation. | Suitable only for DC-biased rails (e.g., 12 V supply); not usable on AC or floating signals without redesign. | Select if protecting unidirectional power rails and board space allows polarity-aware layout. |
| SMCJ90CA | Same bidirectional function and VWM, but higher PPPM (3000 W); larger SMC (DO-214AB) package (7.11 mm × 6.22 mm vs. SMCG's 4.0 mm × 2.41 mm). | Used where surge energy exceeds 1500 W or thermal mass requirements demand larger footprint. | Choose when system-level testing reveals insufficient margin with 1500 W rating - verify PCB pad area and airflow. |
Compared with SMAJ90A-E3/57T and SMCJ90CA, the SMCG90CA-E3/9AT uniquely balances AEC-Q101 compliance, bidirectional symmetry, and ultra-compact DO-215AB packaging - making it optimal for space-constrained automotive and portable electronics where polarity-agnostic protection and reflow compatibility are mandatory.
Availability
SMCG90CA-E3/9AT is available at Aetrix Electronics and suitable for automotive sensor modules, industrial communication interfaces, consumer USB-C peripherals, and telecom line cards requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMCG90CA-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 validation.
The SMCG series was engineered specifically for high-reliability transient suppression in automotive and industrial environments - combining AEC-Q101 qualification, low-profile packaging, and precise bidirectional clamping for next-generation ECUs and smart sensors.
FAQ
What is the clamping voltage of SMCG90CA-E3/9AT at its rated peak pulse current?
The SMCG90CA-E3/9AT has a maximum clamping voltage (VC) of 146 V when subjected to its specified peak pulse current (IPPM) of 10.3 A under the standard 10/1000 µs waveform. This value is measured across the device terminals and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream ICs remain within their absolute maximum ratings.
Is SMCG90CA-E3/9AT suitable for automotive applications?
Yes, SMCG90CA-E3/9AT is AEC-Q101 qualified and explicitly rated for automotive use. Its operating junction temperature range of -55 °C to +150 °C, robust surge handling (1500 W), and validation across temperature cycling, humidity bias, and mechanical shock make it appropriate for engine control units, ADAS camera modules, and body electronics - provided layout follows Vishay's recommended 8.0 mm × 8.0 mm copper pad guidelines.
Does SMCG90CA-E3/9AT have polarity markings on the package?
No, SMCG90CA-E3/9AT does not feature polarity markings because it is a bidirectional TVS diode. The SMCG (DO-215AB) package has symmetrical terminals - both ends function identically as either anode or cathode depending on transient polarity - eliminating the need for orientation during placement and simplifying layout for differential or floating signal lines.
What is the maximum reverse leakage current for SMCG90CA-E3/9AT at its stand-off voltage?
The maximum reverse leakage current (ID) for SMCG90CA-E3/9AT is 1.0 µA when biased at its rated stand-off voltage (VWM) of 90 V and tested at TA = 25 °C. This ultra-low leakage preserves signal integrity in high-impedance sensor bias networks and minimizes standby power loss in battery-operated systems - a key advantage over higher-leakage alternatives.
How does the SMCG90CA-E3/9AT package differ from the SMCJ series in size and thermal performance?
The SMCG90CA-E3/9AT uses the smaller DO-215AB (SMCG) package measuring 4.0 mm × 2.41 mm, versus the DO-214AB (SMC) package of the SMCJ90CA at 7.11 mm × 6.22 mm. While both share similar RθJL (~15 °C/W), the SMCG's lower RθJA (75 °C/W vs. ~50 °C/W for SMCJ) reflects its reduced thermal mass - requiring careful attention to PCB copper area to maintain 1500 W surge capability without exceeding TJ max.
SMCG90CA-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):
- 90V
- Voltage - Breakdown (Min):
- 100V
- Voltage - Clamping (Max) @ Ipp:
- 146V
- Current - Peak Pulse (10/1000µs):
- 10.3A
- 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)
SMCG90CA-E3/9AT FAQ
1.How can I place an order for SMCG90CA-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG90CA-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 SMCG90CA-E3/9AT reliable?
The price and inventory of SMCG90CA-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 SMCG90CA-E3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG90CA-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG90CA-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG90CA-E3/9AT?
SMCG90CA-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG90CA-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 SMCG90CA-E3/9AT?
For technical support, including SMCG90CA-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG90CA-E3/9AT requirements.
6.How does Aetrix verify that SMCG90CA-E3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG90CA-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 SMCG90CA-E3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG90CA-E3/9AT?
All SMCG90CA-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG90CA-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 SMCG90CA-E3/9AT part is unused and in its original packaging.
Return procedure for SMCG90CA-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG90CA-E3/9AT Tags
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