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Vishay General Semiconductor - Diodes Division SMCG110A-E3/9AT
- Part No.:
- SMCG110A-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG110A-E3/9AT.pdf
- Description:
- TVS DIODE 110VWM 177VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,676
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Product details
Overview
SMCG110A-E3/9AT from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) surface-mount package, designed for robust overvoltage protection of sensitive electronics. It features a 110 V stand-off voltage (VWM), 122–135 V breakdown voltage (VBR) at 1 mA test current, 177 V maximum clamping voltage (VC) at 8.5 A peak pulse current (IPPM), and 1500 W peak pulse power dissipation (10/1000 µs waveform), making it suitable for automotive power line and industrial sensor interface protection.
For engineers reviewing the SMCG110A-E3/9AT datasheet, SMCG110A-E3/9AT pinout, SMCG110A-E3/9AT application, or SMCG110A-E3/9AT equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), RoHS-compliant E3 suffix, and reel packaging (13" tape, 3500 pcs) - all critical for automotive-grade BOM validation and PCB layout planning.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, leveraging glass-passivated junction technology for stable avalanche behavior and low incremental surge resistance. Its 10/1000 µs waveform response ensures effective suppression of lightning-induced transients and inductive switching spikes in DC power rails.
The SMCG110A-E3/9AT is rated for -55 °C to +150 °C operating junction temperature, meets MSL Level 1 per J-STD-020 (260 °C reflow peak), and is qualified to AEC-Q101 - confirming suitability for under-hood automotive environments where thermal cycling and long-term reliability are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 110 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin for 12 V/24 V/48 V system rails. |
| VBR (min/max) | 122 V / 135 V at IT = 1 mA - Confirmed breakdown range ensures predictable turn-on threshold across production lots. |
| VC @ IPPM | 177 V at 8.5 A - Clamping voltage during 10/1000 µs surge; determines protected circuit's maximum transient exposure level. |
| PPPM | 1500 W - Peak pulse power handling capacity; supports IEC 61000-4-5 Level 4 (4 kV/2 Ω) surge immunity design. |
| RθJA | 75 °C/W - Junction-to-ambient thermal resistance on standard 8 mm × 8 mm copper pads; enables thermal derating calculations for high-TA environments. |
| TJ max. | +150 °C - Maximum junction temperature rating; validates operation in under-hood automotive locations without forced cooling. |
| AEC-Q101 | Qualified - Confirmed reliability for automotive applications including engine control units, body electronics, and ADAS sensor interfaces. |
Pinout & Package
Package: SMCG (DO-215AB) - low-profile, surface-mount gull-wing package with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to lower-potential side of protected line. | Enables unidirectional clamping from cathode to anode during reverse transient events. |
| Cathode (marked with band) | Current exit terminal in forward bias; connected to higher-potential side (e.g., VBUS or signal rail). | Defines polarity-sensitive placement; band must align with PCB silkscreen cathode indicator to ensure correct clamping direction. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated chip junction | Ensures stable avalanche characteristics and long-term parameter consistency across temperature and life cycles. |
| AEC-Q101 qualification | Validates reliability for automotive applications including engine control, infotainment, and ADAS subsystems. |
| MSL Level 1 rating | Supports single-reflow assembly at 260 °C peak without moisture-related damage or popcorn effect. |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (<1 ns rise time), improving protection margin. |
| 1500 W peak pulse power (10/1000 µs) | Provides headroom for repeated surge events in industrial motor drives and telecom power supplies. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs from load-dump and jump-start transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and ground to clamp surges above 110 V while remaining inert during normal operation. Use Value: Withstands 1500 W pulses and clamps at ≤177 V, ensuring downstream regulators and microcontrollers survive 120 V/100 ms load-dump events. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) in factory automation PLC modules from ESD and cable discharge. IC Role / Device Role / Timing Role: Fast-response clamping diode on signal lines to divert sub-100 ns ESD strikes before reaching ADC inputs. Use Value: 122–135 V VBR and 177 V VC enable precise protection window alignment with 100 V-rated op-amps and isolation amplifiers. |
| Telecom DC Power Input Protection | Motor Drive Control Board Protection |
|
Use Scenario: Safeguarding 48 V PoE-powered equipment front-ends against induced lightning surges on outdoor Ethernet cables. IC Role / Device Role / Timing Role: Primary-level TVS on DC input stage, coordinated with upstream fuses and secondary-stage MOVs. Use Value: 1500 W PPPM and AEC-Q101 qualification support robustness requirements for outdoor telecom cabinets operating at -40 °C to +85 °C ambient. |
Use Scenario: Protecting gate drivers and current-sense circuits in BLDC motor inverters from inductive kickback during MOSFET switching. IC Role / Device Role / Timing Role: Clamp diode across DC bus or across gate resistor to absorb energy from parasitic inductance. Use Value: 8.5 A IPPM and 75 °C/W RθJA allow sustained operation in compact heatsink-less designs up to 70 °C ambient. |
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 | Same VWM (110 V) and PPPM (400 W), but lower power rating and SMA (DO-214AC) package. | Limited to lower-energy transients (IEC 61000-4-2 Level 3); not AEC-Q101 qualified. | Select when cost sensitivity outweighs automotive qualification and 1500 W surge requirement. |
| SMCJ110A-E3/9AT | Same VWM (110 V), higher PPPM (3000 W), identical SMCG (DO-215AB) package and AEC-Q101 qualification. | Supports higher-energy threats (ISO 16750-2 Pulse 5b); larger footprint not required - same mounting pad layout. | Choose when system-level surge testing exceeds 1500 W or requires margin for aging and temperature derating. |
Compared with SMCG110A-E3/9AT, SMAJ110A-E3/57T offers lower cost but sacrifices 65% peak power capability and automotive qualification, while SMCJ110A-E3/9AT delivers double the surge power in the same footprint - enabling future-proofing without PCB redesign.
Availability
SMCG110A-E3/9AT is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface protection, and telecom DC input protection requiring stable component supply, AEC-Q101 compliance, and 13" tape-and-reel logistics (3500 pcs/reel).
Supply support for SMCG110A-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 emphasis on reliability, precision, and automotive-grade qualification.
The SMCG series was developed specifically for high-power, surface-mount transient suppression in space-constrained automotive and industrial systems, combining AEC-Q101 validation with industry-leading 1500 W pulse capability in the DO-215AB outline.
FAQ
What is the clamping voltage of the SMCG110A-E3/9AT under a 10/1000 µs surge?
The SMCG110A-E3/9AT has a maximum clamping voltage (VC) of 177 V at 8.5 A peak pulse current (IPPM) for a 10/1000 µs waveform. This value is measured under standardized test conditions with 0.31" × 0.31" copper pads per terminal and defines the upper voltage limit imposed on protected circuitry during surge events. The SMCG110A-E3/9AT maintains this clamping performance across its full operating temperature range.
Is the SMCG110A-E3/9AT qualified for automotive applications?
Yes, the SMCG110A-E3/9AT is AEC-Q101 qualified, confirming its reliability for automotive use cases including engine control units, body electronics, and ADAS sensor interfaces. The E3 suffix indicates RoHS-compliant, industrial-grade construction, and the device meets MSL Level 1 per J-STD-020 for lead-free reflow compatibility. The SMCG110A-E3/9AT is explicitly listed in Vishay's AEC-Q101 qualified product documentation.
What does the "-E3/9AT" suffix mean in SMCG110A-E3/9AT?
The "-E3" suffix denotes RoHS-compliant, industrial-grade construction with matte tin-plated leads, while "/9AT" specifies packaging in a 13-inch diameter plastic tape-and-reel format containing 3500 units. This differs from "/57T", which uses a 7-inch reel with 850 units. The SMCG110A-E3/9AT is optimized for high-volume SMT assembly lines requiring extended reel length and reduced changeover frequency.
How does the SMCG110A-E3/9AT compare to bidirectional TVS diodes like SMCG110CA?
The SMCG110A-E3/9AT is unidirectional and features a cathode band for polarity-sensitive placement, whereas SMCG110CA is bidirectional with no polarity marking and symmetric clamping in both directions. Electrical characteristics such as VWM (110 V), VBR (122–135 V), and VC (177 V) apply identically in both directions for the CA variant. The SMCG110A-E3/9AT is selected when circuit topology requires directional clamping - for example, on positive power rails referenced to ground.
What is the thermal resistance of the SMCG110A-E3/9AT, and how does it affect layout?
The SMCG110A-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 assumes minimum recommended pad layout per Vishay's datasheet; reducing pad area increases RθJA and limits power handling. For reliable operation at elevated ambient temperatures, designers must apply derating curves from Figure 2 of the SMCG110A-E3/9AT datasheet to determine allowable surge repetition rate.
SMCG110A-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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 110V
- Voltage - Breakdown (Min):
- 122V
- Voltage - Clamping (Max) @ Ipp:
- 177V
- Current - Peak Pulse (10/1000µs):
- 8.5A
- 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)
SMCG110A-E3/9AT FAQ
1.How can I place an order for SMCG110A-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG110A-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 SMCG110A-E3/9AT reliable?
The price and inventory of SMCG110A-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 SMCG110A-E3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG110A-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG110A-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG110A-E3/9AT?
SMCG110A-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG110A-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 SMCG110A-E3/9AT?
For technical support, including SMCG110A-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG110A-E3/9AT requirements.
6.How does Aetrix verify that SMCG110A-E3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG110A-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 SMCG110A-E3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG110A-E3/9AT?
All SMCG110A-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG110A-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 SMCG110A-E3/9AT part is unused and in its original packaging.
Return procedure for SMCG110A-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG110A-E3/9AT Tags
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