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Vishay General Semiconductor - Diodes Division SMCG8.0AHE3/9AT
- Part No.:
- SMCG8.0AHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG8.0AHE3/9AT.pdf
- Description:
- TVS DIODE 8VWM 13.6VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,178
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Product details
Overview
SMCG8.0AHE3/9AT from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 8.0 V stand-off voltage (VWM), 6.40–9.83 V breakdown voltage (VBR) at 10 mA, 13.6 V clamping voltage (VC) at 110.3 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with a 10/1000 µs waveform - deployed on automotive sensor signal lines, MOSFET gate drivers, and industrial I/O interfaces.
For engineers reviewing the SMCG8.0AHE3/9AT datasheet, SMCG8.0AHE3/9AT pinout, SMCG8.0AHE3/9AT application, or SMCG8.0AHE3/9AT equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, DO-215AB mechanical layout, clamping performance under surge conditions, and direct alternatives for circuit-level ESD and load-switch transient protection.
Technical Context
This TVS diode operates as a unidirectional clamping device, leveraging a glass-passivated silicon junction to achieve sub-nanosecond response time and low incremental surge resistance. Its design targets fast-rising transients from inductive switching (e.g., relay coils, solenoids) and electrostatic discharge events, with clamping action triggered when reverse voltage exceeds VBR and sustained up to VC during IPPM.
The SMCG8.0AHE3/9AT is rated for -55 °C to +150 °C operating junction temperature, meets MSL Level 1 per J-STD-020, and is qualified to AEC-Q101 for automotive use. Thermal resistance is 75 °C/W (junction-to-ambient) and 15 °C/W (junction-to-lead), requiring minimum 8.0 mm × 8.0 mm copper pads per terminal for full 1500 W rating compliance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - maximum continuous reverse working voltage before clamping initiates |
| VBR (min/max) | 6.40 V / 9.83 V at IT = 10 mA - ensures reliable turn-on across process variation and temperature |
| VC @ IPPM | 13.6 V at 110.3 A - limits protected circuit voltage during worst-case 10/1000 µs surge |
| PPPM | 1500 W - peak transient energy absorption capability under standardized waveform |
| ID @ VWM | 50 µA - low leakage preserves signal integrity in high-impedance sensing paths |
| TJ max. | +150 °C - supports under-hood automotive and industrial ambient environments |
| Package | SMCG (DO-215AB) - surface-mount gull-wing leadframe, RoHS-compliant, AEC-Q101 qualified |
Pinout & Package
SMCG8.0AHE3/9AT uses the SMCG (DO-215AB) package: a compact, low-profile gull-wing surface-mount outline with cathode band marking. Leads are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 2 whisker test requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path (cathode-banded side is reverse-biased during clamping) | Connected to ground or low-impedance return in unidirectional configuration; enables fast clamp to reference plane |
| Cathode | Protected line connection (band-marked end) | Placed in series with vulnerable IC input/output; conducts surge current to ground when VLINE > VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated reliability for automotive powertrain, body control, and ADAS sensor modules |
| Glass-passivated junction | Stable VBR tolerance and long-term leakage performance under thermal cycling and humidity stress |
| MSL Level 1 rating | Enables standard SMT reflow without moisture sensitivity concerns (peak 260 °C) |
| Low incremental surge resistance | Minimizes voltage overshoot during fast transients, improving protection margin for 3.3 V/5 V logic |
| 1500 W peak pulse power | Handles ISO 7637-2 Pulse 1/2a/5a surges and IEC 61000-4-5 Combination Wave (1.2/50 µs + 8/20 µs) |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load-dump and inductive kickback in 12 V vehicle systems. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between signal line and chassis ground, absorbing transients before they reach the transceiver's ESD structure. Use Value: Limits voltage to ≤13.6 V during 110 A surge, preserving signal fidelity and preventing latch-up in automotive-grade transceivers. | Use Scenario: Safeguarding PLC digital input modules against field-wiring transients induced by motor contactors and solenoid valves. IC Role / Device Role / Timing Role: Front-end transient suppressor on 24 V DC input channels, shunting surge energy away from optocoupler or Schmitt-trigger input stages. Use Value: Withstands repeated 1500 W pulses without degradation, enabling >100,000 surge cycles in factory automation environments. |
| MOSFET Gate Driver Protection | Consumer Power Adapter Output |
Use Scenario: Shielding high-side N-channel MOSFET gates in buck converters and motor drivers from Miller-induced voltage spikes. IC Role / Device Role / Timing Role: Clamping diode connected between gate and source, limiting VGS excursion during fast switching transitions. Use Value: Fast <1 ns response and low clamping voltage prevent gate oxide breakdown while maintaining driver timing integrity. | Use Scenario: Secondary-side overvoltage suppression on 5 V USB-C PD adapter outputs exposed to hot-plug and cable ESD events. IC Role / Device Role / Timing Role: Final-stage TVS on output rail, activated only during fault conditions to protect downstream USB controllers and Type-C port ICs. Use Value: 50 µA max leakage at 8.0 V avoids standby current penalty; AEC-Q101 qualification ensures long-term stability in consumer-grade thermal profiles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.0A-E3/57T | Same VWM (8.0 V), lower PPPM (400 W), SMA (DO-214AC) package, non-AEC-Q101 | Suitable for cost-sensitive consumer or industrial designs where 1500 W surge immunity is not required | Select when board space allows larger SMA footprint and automotive qualification is unnecessary |
| SMCJ8.0AHE3/9AT | Same VWM (8.0 V), same PPPM (1500 W), identical AEC-Q101 qualification, but SMC (DO-214AB) package with higher RθJA (85 °C/W) | Better suited for legacy layouts using SMC footprints; slightly reduced thermal margin on dense PCBs | Choose if existing SMC land pattern is fixed and thermal derating can be managed via copper area |
Compared with SMCG8.0AHE3/9AT, SMAJ8.0A-E3/57T offers lower surge capacity in a less robust package, while SMCJ8.0AHE3/9AT matches power rating and qualification but trades DO-215AB's lower thermal resistance for DO-214AB's wider lead spacing - impacting layout flexibility and thermal performance in high-density automotive modules.
Availability
SMCG8.0AHE3/9AT is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O interface hardening, and MOSFET gate driver safeguarding requiring stable component supply across production lifecycles.
Supply support for SMCG8.0AHE3/9AT 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-power handling.
The SMCG series was developed specifically for AEC-Q101-compliant transient suppression in space-constrained automotive and industrial applications, prioritizing low-profile packaging, fast clamping, and validated surge endurance.
FAQ
What is the clamping voltage of SMCG8.0AHE3/9AT at its rated peak pulse current?
The SMCG8.0AHE3/9AT has a maximum clamping voltage (VC) of 13.6 V at its specified peak pulse current (IPPM) of 110.3 A, measured under the standard 10/1000 µs waveform. This value defines the upper voltage limit imposed on the protected circuit during a full-rated transient event and is critical for ensuring compatibility with downstream 5 V or 3.3 V logic interfaces. The SMCG8.0AHE3/9AT maintains this clamping performance across its qualified temperature range.
Is SMCG8.0AHE3/9AT qualified for automotive applications?
Yes, SMCG8.0AHE3/9AT is explicitly AEC-Q101 qualified, as confirmed by the HE3 suffix and documentation in Vishay's 88457 datasheet. This qualification covers stress tests including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing - validating its suitability for under-hood and cabin-mounted automotive electronics such as body control modules and sensor front-ends. The SMCG8.0AHE3/9AT meets all requirements for Grade 0 and Grade 1 automotive temperature ranges.
What does the "HE3" and "9AT" suffix mean in SMCG8.0AHE3/9AT?
The "HE3" suffix denotes RoHS-compliant construction with AEC-Q101 qualification, while "9AT" specifies the packaging format: 13-inch diameter plastic tape and reel containing 3500 units. This differs from "57T", which indicates a 7-inch reel with 850 units. Both HE3 variants use matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and the SMCG8.0AHE3/9AT is intended for automated SMT placement in high-volume manufacturing environments.
How does the SMCG8.0AHE3/9AT compare to bidirectional TVS diodes like SMCG8.0CA?
The SMCG8.0AHE3/9AT is unidirectional and features a cathode band for polarity-sensitive placement, whereas SMCG8.0CA is bidirectional with no polarity marking and symmetric clamping in both directions. Electrically, SMCG8.0AHE3/9AT has VWM = 8.0 V and VBR = 6.40–9.83 V, while SMCG8.0CA has identical VWM and VBR but supports AC-coupled or floating-line protection. The SMCG8.0AHE3/9AT is preferred for DC rails referenced to ground; SMCG8.0CA suits differential or isolated signal lines where polarity reversal may occur.
What PCB pad layout is required to achieve the full 1500 W rating for SMCG8.0AHE3/9AT?
To achieve the full 1500 W peak pulse power rating, SMCG8.0AHE3/9AT must be mounted on minimum 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads connected to internal or external ground planes - as defined in Figure 3 of the Vishay 88457 datasheet. Smaller pads cause thermal derating; for example, at TA = 75 °C, the device must be derated per Figure 2. The SMCG8.0AHE3/9AT's RθJA of 75 °C/W assumes this baseline layout, and thermal performance directly impacts surge repetition rate and long-term reliability.
SMCG8.0AHE3/9AT 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):
- 8V
- Voltage - Breakdown (Min):
- 8.89V
- Voltage - Clamping (Max) @ Ipp:
- 13.6V
- Current - Peak Pulse (10/1000µs):
- 110.3A
- 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)
SMCG8.0AHE3/9AT FAQ
1.How can I place an order for SMCG8.0AHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG8.0AHE3/9AT 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 SMCG8.0AHE3/9AT reliable?
The price and inventory of SMCG8.0AHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG8.0AHE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG8.0AHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG8.0AHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG8.0AHE3/9AT?
SMCG8.0AHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG8.0AHE3/9AT 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 SMCG8.0AHE3/9AT?
For technical support, including SMCG8.0AHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG8.0AHE3/9AT requirements.
6.How does Aetrix verify that SMCG8.0AHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG8.0AHE3/9AT 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 SMCG8.0AHE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG8.0AHE3/9AT?
All SMCG8.0AHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG8.0AHE3/9AT, 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 SMCG8.0AHE3/9AT part is unused and in its original packaging.
Return procedure for SMCG8.0AHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG8.0AHE3/9AT Tags
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