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Vishay General Semiconductor - Diodes Division SMCG110AHE3/9AT
- Part No.:
- SMCG110AHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG110AHE3/9AT.pdf
- Description:
- TVS DIODE 110VWM 177VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,601
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Product details
Overview
SMCG110AHE3/9AT from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) package, featuring a 110 V stand-off voltage (VWM), 122–135 V breakdown voltage (VBR) at 1 mA, 1500 W peak pulse power (PPPM), 8.5 A peak pulse current (IPPM), and 177 V clamping voltage (VC). It protects MOSFETs, ICs, and sensor signal lines in automotive power systems against inductive switching transients.
For engineers reviewing the SMCG110AHE3/9AT datasheet, SMCG110AHE3/9AT pinout, SMCG110AHE3/9AT application, or SMCG110AHE3/9AT equivalent, key selection criteria include its AEC-Q101 qualification, 1500 W surge capability with 10/1000 µs waveform, low clamping ratio (VC/VBR ≈ 1.42), DO-215AB thermal performance (RθJA = 75 °C/W), and RoHS-compliant matte tin-plated leads.
Technical Context
This TVS diode operates as a unidirectional clamping device with glass-passivated junction and cathode-band polarity marking. Its 110 V stand-off rating enables use on 96 V nominal automotive battery rails, while the 177 V clamping voltage limits downstream stress during ISO 7637-2 Pulse 1/2a/5a events.
The SMCG110AHE3/9AT delivers fast response time (<1 ns), low incremental surge resistance, and meets MSL Level 1 per J-STD-020 (260 °C reflow peak). Its thermal design supports 6.5 W steady-state dissipation at TA = 50 °C on infinite heatsink, with junction temperature rated to +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 110 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 122 V / 135 V at IT = 1 mA - Ensures reliable turn-on above system overvoltage threshold |
| VC @ IPPM | 177 V at 8.5 A - Clamped voltage during 10/1000 µs surge; defines maximum stress on protected IC |
| PPPM | 1500 W - Peak transient energy handling capacity under standardized surge waveform |
| RθJA | 75 °C/W - Junction-to-ambient thermal resistance on recommended 8 mm × 8 mm copper pads |
| TJ max | +150 °C - Maximum allowable junction temperature for AEC-Q101 automotive reliability compliance |
| Package | SMCG (DO-215AB) - Surface-mount gull-wing package with 3.17 mm lead pitch and 7.87 mm body length |
Pinout & Package
SMCG110AHE3/9AT uses the SMCG (DO-215AB) surface-mount package: gull-wing leads, matte tin-plated terminals, 0.220–0.245 inch (5.59–6.22 mm) body width, and cathode band marking on the anode side for unidirectional polarity identification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to ground or low-side reference | Provides return path during clamping; must be routed with low-inductance ground plane |
| Cathode | Current exit terminal in forward bias; marked with band; connected to protected line | Connects to I/O, power rail, or signal line requiring transient protection; determines clamping polarity |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Glass passivated junction | Enables stable VBR over lifetime and improved moisture resistance vs. epoxy-passivated alternatives |
| Low clamping ratio (VC/VBR ≈ 1.42) | Minimizes overvoltage margin between breakdown and clamping-critical for 120 V-rated components |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without preconditioning or dry-pack requirements |
| RoHS compliant, HE3 suffix | Meets EU RoHS Directive 2011/65/EU and JESD201 Class 2 whisker resistance |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 96 V battery-fed control modules from load-dump transients (ISO 7637-2 Pulse 5a) and inductive switch-off spikes. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between battery rail and DC-DC converter input. Use Value: Limits voltage excursion to ≤177 V during 1500 W surges, preventing damage to downstream 200 V-rated MOSFETs and gate drivers. | Use Scenario: Shielding analog output lines of pressure/temperature sensors in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Point-of-entry TVS on 4–20 mA or 0–10 V signal traces before ADC input stage. Use Value: Sub-1 ns response clamps ESD (IEC 61000-4-2) and cable-coupled noise before it corrupts 16-bit measurement accuracy. |
| On-Board Charger (OBC) DC Link Protection | Motor Drive Gate Driver Supply Protection |
Use Scenario: Safeguarding high-voltage DC link capacitors and SiC MOSFET gates in EV on-board chargers during AC line faults. IC Role / Device Role / Timing Role: Bidirectional-capable variant not applicable; this unidirectional part used on isolated low-side bias rails feeding control logic. Use Value: Withstands repetitive 10/1000 µs surges up to 8.5 A while maintaining <1 µA leakage at 110 V-preserving standby power budget. | Use Scenario: Protecting isolated 15 V gate driver supply rails in industrial servo inverters from cross-talk and Miller-induced spikes. IC Role / Device Role / Timing Role: TVS placed across gate driver VDD and GND to clamp overshoot during high-di/dt switching transitions. Use Value: 177 V clamping ensures gate oxide integrity of 200 V-rated isolated gate drivers under worst-case shoot-through conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ110A-E3/57T | Same VWM (110 V), lower PPPM (400 W), SMA (DO-214AC) package, RθJA = 95 °C/W | Lower surge rating suits consumer-grade 24 V systems; not AEC-Q101 qualified | Select when cost-sensitive non-automotive designs require basic 110 V clamping without automotive qualification |
| SMCJ110AHE3/9AT | Same VWM (110 V), higher PPPM (1500 W), identical SMCG package, but SMCJ series has tighter VBR tolerance (±5 % vs ±6.5 %) | Designed for same automotive applications but with tighter parametric control for safety-critical subsystems | Choose when functional safety (ISO 26262) requires tighter VBR consistency across temperature and lot variance |
Compared with SMAJ110A-E3/57T, SMCG110AHE3/9AT delivers 275 % higher surge power and automotive qualification; versus SMCJ110AHE3/9AT, it trades minor VBR tolerance relaxation for broader availability and optimized cost-per-watt in volume production.
Availability
SMCG110AHE3/9AT is available at Aetrix Electronics and suitable for automotive power management, industrial sensor interface, and motor drive gate driver protection requiring stable component supply and AEC-Q101 compliance.
Supply support for SMCG110AHE3/9AT 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, MOSFETs, and optoelectronics with emphasis on reliability and automotive-grade validation.
The SMCG series was developed specifically for high-energy transient suppression in harsh automotive and industrial environments, targeting 12 V to 48 V (and up to 188 V) systems where compact size, AEC-Q101 compliance, and repeatable clamping performance are mandatory.
FAQ
What is the clamping voltage of SMCG110AHE3/9AT at its rated peak pulse current?
The SMCG110AHE3/9AT has a maximum clamping voltage (VC) of 177 V at its specified peak pulse current (IPPM) of 8.5 A under a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events. The 177 V clamping ensures compatibility with 200 V-rated downstream components such as gate drivers and DC-DC controllers in automotive applications.
Is SMCG110AHE3/9AT qualified for automotive use?
Yes, SMCG110AHE3/9AT is AEC-Q101 qualified, as confirmed by Vishay's documentation (Document Number 88457, Revision 09-Jan-2024). The HE3 suffix explicitly denotes AEC-Q101 qualification, RoHS compliance, and industrial grade. This qualification covers stress tests including temperature cycling, high-temperature reverse bias (HTRB), and ESD robustness-making SMCG110AHE3/9AT suitable for engine control units, body electronics, and ADAS power domains.
What does the "9AT" suffix indicate in SMCG110AHE3/9AT?
The "9AT" suffix in SMCG110AHE3/9AT specifies the packaging configuration: 13-inch diameter plastic tape and reel, with a base quantity of 3500 devices per reel. This differs from the "57T" option (7-inch reel, 850 units). Both share identical electrical and thermal specifications; the 9AT format is optimized for high-volume SMT assembly lines requiring extended reel life and reduced changeover frequency.
How does the SMCG (DO-215AB) package compare thermally to SMA (DO-214AC)?
The SMCG (DO-215AB) package used by SMCG110AHE3/9AT offers lower thermal resistance than SMA (DO-214AC): RθJA = 75 °C/W versus ~95 °C/W for SMAJ variants, when mounted on identical 8 mm × 8 mm copper pads. This 21 % improvement allows SMCG110AHE3/9AT to sustain higher average power dissipation in thermally constrained layouts-critical for under-hood automotive modules where ambient temperatures exceed 105 °C.
Can SMCG110AHE3/9AT be used in bidirectional configurations?
No, SMCG110AHE3/9AT is a unidirectional TVS diode, as indicated by the "A" (not "CA") suffix and cathode-band marking. Bidirectional operation requires the "CA" suffix (e.g., SMCG110CA). Using SMCG110AHE3/9AT in reverse-biased AC signal paths would result in forward conduction and failure. For bidirectional protection at 110 V standoff, select SMCG110CAHE3/9AT, which exhibits symmetric breakdown in both directions.
SMCG110AHE3/9AT 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCG)
SMCG110AHE3/9AT FAQ
1.How can I place an order for SMCG110AHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG110AHE3/9AT 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 SMCG110AHE3/9AT reliable?
The price and inventory of SMCG110AHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG110AHE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG110AHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG110AHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG110AHE3/9AT?
SMCG110AHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG110AHE3/9AT 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 SMCG110AHE3/9AT?
For technical support, including SMCG110AHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG110AHE3/9AT requirements.
6.How does Aetrix verify that SMCG110AHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG110AHE3/9AT 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 SMCG110AHE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG110AHE3/9AT?
All SMCG110AHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG110AHE3/9AT, 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 SMCG110AHE3/9AT part is unused and in its original packaging.
Return procedure for SMCG110AHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG110AHE3/9AT Tags
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