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Vishay General Semiconductor - Diodes Division SMCG110-E3/9AT
- Part No.:
- SMCG110-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG110-E3/9AT.pdf
- Description:
- TVS DIODE 110VWM 196VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,719
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Product details
Overview
SMCG110-E3/9AT from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) in DO-215AB (SMCG) package, designed for robust overvoltage protection on signal and power lines. It features 110 V stand-off voltage (VWM), 1500 W peak pulse power (PPPM), clamping voltage of 177 V at 8.5 A IPPM, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SMCG110-E3/9AT datasheet, SMCG110-E3/9AT pinout, SMCG110-E3/9AT application, or SMCG110-E3/9AT equivalent, this device is selected for high-energy surge suppression in automotive sensor interfaces, industrial I/O protection, and telecom line conditioning where low clamping ratio and MSL Level 1 solderability are critical.
Technical Context
The SMCG110-E3/9AT employs a glass-passivated silicon avalanche junction optimized for bi-directional transient suppression with symmetrical breakdown behavior. Its 10/1000 µs waveform response delivers 8.5 A peak pulse current (IPPM) while maintaining 177 V clamping voltage (VC), yielding a clamping ratio (VC/VWM) of 1.61 - a key indicator of effective voltage limiting under surge conditions.
Thermally, it exhibits RθJA = 75 °C/W and RθJL = 15 °C/W, enabling stable operation up to TJ = 150 °C. The device meets J-STD-020 MSL Level 1 (260 °C peak reflow) and is qualified to AEC-Q101, confirming suitability for under-hood automotive environments without derating penalties at TA ≤ 125 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 110 V - maximum continuous reverse operating voltage before clamping initiates |
| PPPM | 1500 W - peak surge energy handling capability per 10/1000 µs waveform, defining robustness against lightning or ESD transients |
| VC @ IPPM | 177 V at 8.5 A - clamped voltage during worst-case surge, directly limiting stress on downstream ICs |
| ID @ VWM | 1.0 µA - ultra-low leakage ensures minimal standby power loss and signal integrity in high-impedance circuits |
| TJ max. | +150 °C - enables deployment in engine control units, motor drives, and other high-temperature automotive subsystems |
| MSL Level | Level 1 per J-STD-020 - supports standard SMT reflow without moisture sensitivity concerns |
| AEC-Q101 | Qualified - validated for automotive applications including vibration, thermal cycling, and humidity testing |
Pinout & Package
DO-215AB (SMCG) surface-mount package: low-profile, gull-wing leads, matte tin-plated terminals compliant with J-STD-002 and JESD 22-B102. Bi-directional construction means no polarity marking; both terminals are functionally identical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Bi-directional avalanche junction conducts surge current in either direction when V > VC |
| Lead 1 / Lead 2 | Connection interface | Gull-wing terminations enable automated placement and reliable solder joints on 8.0 mm × 8.0 mm copper pads |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional suppression | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints |
| 1500 W peak pulse power | Withstands ISO 7637-2 Pulse 1/2a/5a surges and IEC 61000-4-5 Combination Wave (1.2/50 µs + 8/20 µs) |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling (-55 °C to +150 °C), mechanical shock, and board flex testing |
| MSL Level 1 rating | Eliminates bake-out requirement prior to SMT assembly, reducing manufacturing cost and cycle time |
| Glass-passivated junction | Ensures long-term stability of breakdown voltage and leakage current under thermal and humidity stress |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN, LIN, or analog sensor inputs (e.g., pressure, temperature) in engine control modules from load dump and inductive switching transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed at connector interface to shunt surge energy before reaching MCU or signal conditioner. Use Value: Clamps to 177 V at 8.5 A, limiting stress on 12 V rail-tied receivers and preserving signal fidelity during 100 V/500 ms load dump events. |
Use Scenario: Safeguarding digital input channels on programmable logic controllers exposed to 24 V DC field wiring with inductive loads. IC Role / Device Role / Timing Role: Fast-response TVS deployed across input terminals to absorb repetitive switching spikes from solenoids and contactors. Use Value: 1.0 µA leakage at 110 V ensures compatibility with high-impedance optocoupler inputs, while 1500 W rating handles multiple Class III surge events per IEC 61000-4-5. |
| Telecom Line Interface | Power Supply Input Stage |
Use Scenario: Transient suppression on RS-485 or Ethernet PHY data lines in outdoor base stations subject to lightning-induced surges. IC Role / Device Role / Timing Role: Secondary-level protector placed after gas discharge tube (GDT) to refine clamping and limit let-through voltage. Use Value: Symmetrical bi-directional response matches differential signaling requirements; 177 V clamping prevents damage to ±12 V receiver rails. |
Use Scenario: Input-stage surge protection for 110 V AC/DC adapters and DC-DC converters in industrial power supplies. IC Role / Device Role / Timing Role: Standoff-rated TVS placed across bulk input capacitor to clamp line-to-line and line-to-ground transients. Use Value: 110 V VWM aligns with nominal 100–120 VAC rectified input; 1500 W rating absorbs EN 61000-4-5 Level 4 surges (4 kV line-earth). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ110A-E3/57T | Uni-directional; same VWM and PPPM but requires correct polarity orientation; higher ID (5.0 µA vs. 1.0 µA) | Suitable only for DC-biased lines with known polarity; not usable on AC or floating signals | Select when polarity is fixed and lower cost is prioritized over layout flexibility |
| SMCJ110CA | Same bi-directional functionality, but in larger DO-214AB (SMC) package; higher thermal mass (RθJA = 30 °C/W vs. 75 °C/W) | Better suited for high-duty-cycle surge environments; requires larger PCB footprint (7.11 mm × 6.22 mm vs. 4.0 mm × 3.17 mm) | Choose when sustained surge repetition or higher average power dissipation is expected |
Compared with SMAJ110A-E3/57T and SMCJ110CA, the SMCG110-E3/9AT offers optimal balance of compact DO-215AB footprint, bi-directional symmetry, and AEC-Q101 qualification - making it preferred for space-constrained automotive and industrial PCBs where polarity-agnostic protection and reflow compatibility are mandatory.
Availability
SMCG110-E3/9AT is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, telecom line interfaces, and power supply input stages requiring stable component supply with full traceability and lifecycle management.
Supply support for SMCG110-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, TVS devices, and MOSFETs with emphasis on reliability, ruggedness, and automotive-grade qualification.
The SMCG series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-power, surface-mount transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure applications.
FAQ
What is the clamping voltage of the SMCG110-E3/9AT and how is it measured?
The SMCG110-E3/9AT has a maximum clamping voltage (VC) of 177 V, measured at its rated peak pulse current (IPPM) of 8.5 A using a 10/1000 µs double-exponential surge waveform. This value is guaranteed per the Vishay datasheet (Document Number: 88457) and reflects the actual voltage seen by protected circuitry during worst-case transient events. The SMCG110-E3/9AT maintains this clamping performance across its full operating temperature range.
Is the SMCG110-E3/9AT suitable for automotive applications?
Yes, the SMCG110-E3/9AT is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its 150 °C maximum junction temperature, MSL Level 1 reflow compatibility, and validation across thermal cycling, mechanical shock, and humidity tests confirm its suitability for engine control units, body electronics, and ADAS sensor interfaces. The SMCG110-E3/9AT meets the reliability demands of modern automotive ECUs.
Does the SMCG110-E3/9AT have polarity markings?
No, the SMCG110-E3/9AT is a bi-directional TVS device and carries no polarity marking on its DO-215AB package. Both terminals are functionally identical, allowing placement without orientation concern - a critical advantage for protecting AC-coupled, differential, or floating signal paths. This distinguishes the SMCG110-E3/9AT from uni-directional variants like SMCG110A, which feature a cathode band.
What is the leakage current specification for the SMCG110-E3/9AT at its stand-off voltage?
The SMCG110-E3/9AT specifies a maximum reverse leakage current (ID) of 1.0 µA at its 110 V stand-off voltage (VWM) and 25 °C ambient temperature. This ultra-low leakage preserves signal integrity in high-impedance circuits and minimizes power loss in always-on systems. The SMCG110-E3/9AT maintains tight leakage control across its full -55 °C to +150 °C operating range.
How does the SMCG110-E3/9AT compare to the SMAJ110A-E3/57T in terms of circuit design flexibility?
The SMCG110-E3/9AT provides greater layout flexibility than the SMAJ110A-E3/57T due to its bi-directional architecture - eliminating the need for polarity-aware routing and enabling use on AC, differential, or unknown-polarity lines. While both share 110 V VWM and 1500 W PPPM, the SMCG110-E3/9AT's symmetric response and lack of cathode marking simplify schematic capture and PCB placement. The SMCG110-E3/9AT also offers lower leakage (1.0 µA vs. 5.0 µA), improving performance in precision analog front-ends.
SMCG110-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 110V
- Voltage - Breakdown (Min):
- 122V
- Voltage - Clamping (Max) @ Ipp:
- 196V
- Current - Peak Pulse (10/1000µs):
- 7.7A
- 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)
SMCG110-E3/9AT FAQ
1.How can I place an order for SMCG110-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG110-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 SMCG110-E3/9AT reliable?
The price and inventory of SMCG110-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 SMCG110-E3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG110-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG110-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG110-E3/9AT?
SMCG110-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG110-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 SMCG110-E3/9AT?
For technical support, including SMCG110-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG110-E3/9AT requirements.
6.How does Aetrix verify that SMCG110-E3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG110-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 SMCG110-E3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG110-E3/9AT?
All SMCG110-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG110-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 SMCG110-E3/9AT part is unused and in its original packaging.
Return procedure for SMCG110-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG110-E3/9AT Tags
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