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Vishay General Semiconductor - Diodes Division SMCG90AHE3/9AT
- Part No.:
- SMCG90AHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG90AHE3/9AT.pdf
- Description:
- TVS DIODE 90VWM 146VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,191
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Product details
Overview
SMCG90AHE3/9AT 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 90 V standoff voltage (VWM), 100–111 V breakdown voltage (VBR), 1500 W peak pulse power (PPPM), and clamps to 146 V at 10.3 A peak pulse current - ideal for safeguarding MOSFETs, ICs, and sensor signal lines in automotive power systems.
For engineers reviewing the SMCG90AHE3/9AT datasheet, SMCG90AHE3/9AT pinout, SMCG90AHE3/9AT application, or SMCG90AHE3/9AT equivalent, this device delivers AEC-Q101 qualification, low incremental surge resistance, fast response time, and RoHS-compliant matte tin-plated leads - critical for high-reliability industrial and automotive transient suppression design.
Technical Context
The SMCG90AHE3/9AT operates as a unidirectional avalanche diode with glass-passivated junction, optimized for clamping transients induced by inductive load switching or lightning surges. Its 10/1000 μs waveform rating supports 1500 W peak pulse power and 10.3 A peak pulse current under standardized test conditions.
Thermally, it exhibits RθJA = 75 °C/W and RθJL = 15 °C/W, enabling effective heat dissipation on standard 8.0 mm × 8.0 mm copper pads. With an operating junction temperature range of –55 °C to +150 °C and MSL Level 1 moisture sensitivity, it supports reflow soldering up to 260 °C peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 90 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 100 V / 111 V at 1 mA - guaranteed avalanche initiation window for predictable turn-on |
| VC @ IPPM | 146 V at 10.3 A - clamping voltage during 10/1000 μs surge, limiting downstream stress |
| PPPM | 1500 W - peak transient energy handling capacity under standardized waveform |
| ID @ VWM | 1.0 μA - ultra-low leakage ensures minimal standby power loss and signal integrity |
| TJ max | +150 °C - enables operation in under-hood automotive and industrial environments |
| Package | SMCG (DO-215AB) - low-profile SMD outline with cathode band marking and J-STD-002 solderability |
Pinout & Package
SMCG90AHE3/9AT uses the SMCG (DO-215AB) surface-mount package: a gull-wing leaded, low-profile case with molded UL 94 V-0 compound. Polarity is marked by a cathode band on the unidirectional device; terminals are matte tin plated and compliant with JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to system ground or low-side reference | Provides return path during clamping; must be routed with low-inductance trace to minimize voltage overshoot |
| Cathode | Current exit terminal in forward bias; connected to protected line (e.g., power rail or signal) | Band-marked end; reverse-biased during normal operation; avalanches into conduction when V > VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JEDEC standards |
| Glass passivated junction | Enhances long-term stability and reduces parameter drift under thermal stress and humidity exposure |
| Low incremental surge resistance | Minimizes dynamic impedance during clamping, improving voltage limiting accuracy under high di/dt events |
| MSL Level 1 (260 °C peak) | Enables compatibility with standard lead-free reflow profiles without preconditioning or baking |
| UL 94 V-0 molding compound | Meets flammability safety requirements for enclosed industrial and automotive enclosures |
Applications
| Automotive Power Distribution | Industrial Sensor Signal Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V power rails in engine control units (ECUs) and body control modules against load dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery input and DC-DC converter input stage. Use Value: Clamps transients to ≤146 V within nanoseconds, preventing damage to downstream PMICs and microcontrollers rated for 36 V absolute max. |
Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loops) of pressure or temperature sensors in factory automation. IC Role / Device Role / Timing Role: Low-leakage (1.0 μA) TVS mounted directly at connector interface to shunt ESD and cable discharge events. Use Value: Maintains signal fidelity during normal operation while suppressing ±15 kV contact ESD per IEC 61000-4-2 without affecting loop accuracy. |
| Telecom Power Interface | Consumer Device DC Input Protection |
Use Scenario: Safeguarding PoE-powered equipment (e.g., IP cameras) against surges on 48 V DC input lines. IC Role / Device Role / Timing Role: Primary overvoltage clamp upstream of hot-swap controller and input filter. Use Value: Handles 1500 W peak pulses without degradation, meeting GR-1089-CORE Level 3 telecom surge immunity requirements. |
Use Scenario: Protecting USB-C PD input stages in portable medical monitors and smart home hubs from adapter-induced transients. IC Role / Device Role / Timing Role: Compact DO-215AB footprint enables placement adjacent to connector with minimal board area. Use Value: Delivers AEC-Q101 reliability and RoHS compliance in cost-sensitive consumer designs requiring field-deployable robustness. |
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 | Same VWM (90 V) and PPPM (400 W), but lower power rating and SMA (DO-214AC) package | Limited to lower-energy transients; not AEC-Q101 qualified | Select when cost or legacy layout constraints prioritize SMA footprint over automotive qualification |
| SMCJ90AHE3/9AT | Higher PPPM (3000 W), same VWM (90 V), identical SMCG package and AEC-Q101 qualification | Supports more severe surge environments (e.g., ISO 7637-2 Pulse 5a); larger thermal mass | Choose when system-level surge testing requires ≥2× peak power margin beyond 1500 W |
Compared with SMAJ90A-E3/57T, SMCG90AHE3/9AT offers double the surge energy capability and automotive qualification; versus SMCJ90AHE3/9AT, it provides identical reliability in a lower-cost, thermally adequate solution for moderate-clamp applications.
Availability
SMCG90AHE3/9AT is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interfaces, and telecom DC input protection requiring stable component supply across production lifecycles.
Supply support for SMCG90AHE3/9AT 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 performance.
The SMCG series was developed for high-power, surface-mount transient suppression in space-constrained automotive and industrial systems - combining AEC-Q101 qualification, low-profile packaging, and consistent clamping behavior across temperature.
FAQ
What is the clamping voltage of SMCG90AHE3/9AT and how is it measured?
The SMCG90AHE3/9AT has a maximum clamping voltage (VC) of 146 V, measured at 10.3 A peak pulse current using the standardized 10/1000 μs waveform per ANSI/IEEE C62.35. This value reflects the actual voltage seen by downstream circuitry during a surge event and is validated under controlled test conditions on minimum recommended pad layout.
Is SMCG90AHE3/9AT suitable for automotive applications?
Yes, SMCG90AHE3/9AT is AEC-Q101 qualified and explicitly rated for automotive use. Its construction includes glass-passivated junction, MSL Level 1 reflow compatibility, and operation from –55 °C to +150 °C - meeting requirements for engine bay, powertrain, and body electronics where transient immunity and long-term reliability are critical.
What does the "HE3" suffix indicate in SMCG90AHE3/9AT?
The "HE3" suffix denotes RoHS-compliant construction with AEC-Q101 qualification. Specifically, "H" indicates AEC-Q101 qualification, "E3" confirms RoHS compliance and industrial-grade reliability, and "9AT" specifies packaging in 13-inch tape-and-reel format with 3500 units per reel.
How does SMCG90AHE3/9AT differ from bidirectional variants like SMCG90CA?
SMCG90AHE3/9AT is unidirectional and features a cathode band for polarity identification; it conducts only in reverse avalanche mode. In contrast, SMCG90CA is bidirectional with no polarity marking and symmetric clamping in both directions - making SMCG90AHE3/9AT appropriate for DC rail protection, while SMCG90CA suits AC-coupled or differential signal lines.
What thermal considerations apply when using SMCG90AHE3/9AT in high-power designs?
SMCG90AHE3/9AT has RθJA = 75 °C/W and RθJL = 15 °C/W. For reliable operation at full 1500 W peak power, PCB layout must use 8.0 mm × 8.0 mm copper pads per terminal as specified. Derating is required above TA = 25 °C per Figure 2 in the datasheet to maintain TJ ≤ 150 °C during repetitive surge events.
SMCG90AHE3/9AT 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):
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCG)
SMCG90AHE3/9AT FAQ
1.How can I place an order for SMCG90AHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG90AHE3/9AT 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 SMCG90AHE3/9AT reliable?
The price and inventory of SMCG90AHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG90AHE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG90AHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG90AHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG90AHE3/9AT?
SMCG90AHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG90AHE3/9AT 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 SMCG90AHE3/9AT?
For technical support, including SMCG90AHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG90AHE3/9AT requirements.
6.How does Aetrix verify that SMCG90AHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG90AHE3/9AT 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 SMCG90AHE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG90AHE3/9AT?
All SMCG90AHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG90AHE3/9AT, 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 SMCG90AHE3/9AT part is unused and in its original packaging.
Return procedure for SMCG90AHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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