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Vishay General Semiconductor - Diodes Division SMCG9.0AHE3/9AT
- Part No.:
- SMCG9.0AHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG9.0AHE3/9AT.pdf
- Description:
- TVS DIODE 9VWM 15.4VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,489
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Product details
Overview
SMCG9.0AHE3/9AT 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 9.0 V stand-off voltage (VWM), 10.0–11.1 V breakdown voltage (VBR) at 1 mA, 15.4 V clamping voltage (VC) at 97.4 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with a 10/1000 µs waveform - deployed on signal lines and power rails in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the SMCG9.0AHE3/9AT datasheet, SMCG9.0AHE3/9AT pinout, SMCG9.0AHE3/9AT application, or SMCG9.0AHE3/9AT equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, DO-215AB mechanical data, clamping performance under surge conditions, and real-world use context for ESD and load-switching transient suppression.
Technical Context
The SMCG9.0AHE3/9AT operates as a unidirectional avalanche diode with glass-passivated junction, optimized for fast response to transients (<1 ns) and low incremental surge resistance. Its clamping behavior is defined by a 10/1000 µs waveform test condition, and it maintains stable performance across -55 °C to +150 °C junction temperature range.
Designed for surface-mount automated placement, it meets J-STD-020 MSL Level 1 (peak reflow 260 °C), uses matte tin-plated leads, and complies with AEC-Q101 for automotive-grade reliability. Polarity is marked by a cathode band; no marking applies to bidirectional variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 10.0 V / 11.1 V at IT = 1 mA - ensures predictable avalanche onset within tight tolerance |
| VC @ IPPM | 15.4 V at 97.4 A - limits downstream voltage stress during 10/1000 µs surges |
| PPPM | 1500 W - sustains high-energy transients without failure under standardized waveform |
| ID @ VWM | 10 µA - ultra-low leakage preserves signal integrity in high-impedance circuits |
| TJ max | +150 °C - supports operation in under-hood automotive and industrial environments |
| RθJA | 75 °C/W - thermal resistance enables reliable power dissipation on standard 8 mm × 8 mm copper pads |
Pinout & Package
Package: SMCG (DO-215AB) - low-profile, surface-mount case with molded UL 94 V-0 compound, 0.310" × 0.400" footprint, and cathode-band polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to protected circuit ground or low-side reference | Provides return path for clamped surge current; must be routed with low-inductance trace to ground plane |
| Cathode | Current exit terminal in forward bias; marked with band; connected to protected line (e.g., CAN_H, USB_VBUS) | Defines clamping polarity; reverse-biased during normal operation; conducts only during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces |
| Glass passivated junction | Ensures long-term stability and reduced parameter drift under thermal cycling and humidity stress |
| MSL Level 1 rating | Enables single-reflow assembly without moisture-related popcorn failure risk |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a/5a) |
| 1500 W PPPM capability | Protects against high-energy load-dump and inductive switching events in 12 V/24 V systems |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Suppresses load-dump transients (up to 35 V, 400 ms) on 12 V battery-fed microcontroller power rails in vehicle body control modules. IC Role / Device Role: Unidirectional TVS placed between VCC and GND, upstream of LDO regulator input. Use Value: Limits voltage seen by downstream ICs to ≤15.4 V during 1500 W surges, preventing latch-up or permanent damage per ISO 16750-2. |
Use Scenario: Shields analog output lines (e.g., 4–20 mA current loop) of pressure sensors in factory automation PLC I/O modules from ESD and field-wiring induced spikes. IC Role / Device Role: TVS mounted directly at connector entry point, shunting transients to local ground before signal conditioning circuitry. Use Value: Clamps 8 kV contact ESD (IEC 61000-4-2) and 1 kV ring-wave surges (IEC 61000-4-5) to safe levels while maintaining <10 µA leakage at 9 V operating voltage. |
| Automotive CAN Bus Protection | Consumer Power Adapter Input Protection |
Use Scenario: Protects CAN transceiver PHY pins (CAN_H/CAN_L) against coupled transients from adjacent high-power solenoid drivers in electric power steering systems. IC Role / Device Role: One SMCG9.0AHE3/9AT per line (CAN_H–GND and CAN_L–GND), configured unidirectionally with cathode to signal line. Use Value: Maintains CAN signal integrity up to 1 Mbps by limiting clamping voltage to 15.4 V and offering <100 pF junction capacitance at zero bias. |
Use Scenario: Guards AC-DC adapter primary-side rectifier output against lightning-induced surges entering via mains input in smart home hubs. IC Role / Device Role: TVS placed across bulk capacitor terminals to clamp voltage overshoot during differential-mode surges. Use Value: Absorbs 1500 W peak energy without degradation, enabling compliance with UL 62368-1 surge withstand requirements for Class II power supplies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ9.0A-E3/57T | Same VWM (9.0 V) and VC (15.4 V), but lower PPPM (400 W); SMA (DO-214AC) package, smaller footprint (0.280" × 0.185") | Not rated for AEC-Q101; suitable for commercial-grade consumer or industrial equipment with lower surge exposure | Select when board space is constrained and automotive qualification is not required. |
| SMCJ9.0AHE3/9AT | Identical VWM (9.0 V), VBR (10.0–11.1 V), and VC (15.4 V), but higher PPPM (3000 W); same SMCG (DO-215AB) package and AEC-Q101 qualification | Over-spec'd for 1500 W threat levels; adds margin for extended surge duration or repeated events | Choose when system-level testing reveals need for >1500 W surge headroom or longer pulse immunity. |
Compared with SMAJ9.0A-E3/57T, SMCG9.0AHE3/9AT delivers double the surge energy handling and automotive qualification; versus SMCJ9.0AHE3/9AT, it offers identical form-factor and reliability but at half the peak power rating - making it optimal for cost-sensitive AEC-Q101 designs where 1500 W suffices.
Availability
SMCG9.0AHE3/9AT is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor signal conditioning, and consumer power adapter input protection requiring stable component supply and full AEC-Q101 traceability.
Supply support for SMCG9.0AHE3/9AT 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, efficiency, and application-specific validation.
The SMCG series was developed specifically for high-reliability transient suppression in automotive and industrial environments, combining AEC-Q101 qualification, high-power surge capability, and surface-mount manufacturability in the DO-215AB outline.
FAQ
What is the clamping voltage of SMCG9.0AHE3/9AT at its rated peak pulse current?
The SMCG9.0AHE3/9AT has a maximum clamping voltage (VC) of 15.4 V at its specified peak pulse current (IPPM) of 97.4 A, measured using the standard 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during surge events and is critical for ensuring downstream ICs remain within absolute maximum ratings. The SMCG9.0AHE3/9AT achieves this clamping performance while maintaining low leakage and AEC-Q101 qualification.
Is SMCG9.0AHE3/9AT suitable for automotive applications?
Yes, SMCG9.0AHE3/9AT is explicitly AEC-Q101 qualified and manufactured with HE3 suffix indicating halogen-free, RoHS-compliant, and automotive-grade construction. It is validated for under-hood and chassis-mounted applications subject to thermal cycling, vibration, and high-energy transients such as load dump and ISO 7637-2 pulses. The SMCG9.0AHE3/9AT meets all required environmental and electrical stress tests per AEC-Q101 Rev D.
What does the "HE3/9AT" suffix mean in SMCG9.0AHE3/9AT?
The "HE3" suffix denotes RoHS-compliant, AEC-Q101-qualified construction with halogen-free molding compound; "9AT" specifies packaging in a 13-inch diameter plastic tape-and-reel format containing 3500 units. This differs from "57T" (7-inch reel, 850 units) and confirms full traceability, MSL Level 1 handling, and automotive-grade material categorization per Vishay Doc. #99912. The SMCG9.0AHE3/9AT is fully compatible with standard SMT pick-and-place equipment.
How does SMCG9.0AHE3/9AT compare to bidirectional TVS diodes like SMCG9.0CA?
SMCG9.0AHE3/9AT is unidirectional and features a cathode band for polarity identification, whereas SMCG9.0CA is bidirectional with no polarity marking and symmetric clamping in both directions. The SMCG9.0AHE3/9AT offers lower leakage (<10 µA at 9 V) and is preferred for DC power rail or single-polarity signal line protection; SMCG9.0CA suits AC-coupled or differential bus lines like RS-485. Both share the same DO-215AB package and 1500 W PPPM rating.
What PCB layout guidance applies to SMCG9.0AHE3/9AT for optimal surge performance?
For optimal transient suppression, SMCG9.0AHE3/9AT must be mounted with minimum trace length between its cathode and the protected node, and its anode connected directly to a low-inductance ground plane - ideally using 8.0 mm × 8.0 mm copper pads per terminal as specified in the datasheet. Avoid vias or narrow traces in the surge current path; thermal relief should be minimized to maintain RθJL = 15 °C/W. The SMCG9.0AHE3/9AT's performance degrades significantly if pad area or grounding is undersized.
SMCG9.0AHE3/9AT 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):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 15.4V
- Current - Peak Pulse (10/1000µs):
- 97.4A
- 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)
SMCG9.0AHE3/9AT FAQ
1.How can I place an order for SMCG9.0AHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG9.0AHE3/9AT 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 SMCG9.0AHE3/9AT reliable?
The price and inventory of SMCG9.0AHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG9.0AHE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG9.0AHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG9.0AHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG9.0AHE3/9AT?
SMCG9.0AHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG9.0AHE3/9AT 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 SMCG9.0AHE3/9AT?
For technical support, including SMCG9.0AHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG9.0AHE3/9AT requirements.
6.How does Aetrix verify that SMCG9.0AHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG9.0AHE3/9AT 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 SMCG9.0AHE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG9.0AHE3/9AT?
All SMCG9.0AHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG9.0AHE3/9AT, 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 SMCG9.0AHE3/9AT part is unused and in its original packaging.
Return procedure for SMCG9.0AHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG9.0AHE3/9AT Tags
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