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Vishay General Semiconductor - Diodes Division SMCG9.0HE3/9AT
- Part No.:
- SMCG9.0HE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG9.0HE3/9AT.pdf
- Description:
- TVS DIODE 9VWM 16.9VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,589
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Product details
Overview
SMCG9.0HE3/9AT from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) in DO-215AB (SMCG) package, designed for clamping voltage transients on signal and power lines. It features 9.0 V stand-off voltage (VWM), 15.4 V maximum clamping voltage (VC) at 97.4 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 µs waveform - used to protect automotive sensor interfaces and industrial I/O circuits.
For engineers reviewing the SMCG9.0HE3/9AT datasheet, SMCG9.0HE3/9AT pinout, SMCG9.0HE3/9AT application, or SMCG9.0HE3/9AT equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification, DO-215AB thermal performance (RθJA = 75 °C/W), and compliance with UL 94 V-0 molding compound requirements.
Technical Context
This device operates as a bi-directional avalanche diode, leveraging glass-passivated junction technology to deliver symmetric clamping in both polarities without polarity marking. Its breakdown voltage (VBR) is specified at 10.0–11.1 V with 1.0 mA test current, and it maintains low incremental surge resistance to ensure stable clamping under repetitive transients.
Designed for surface-mount automated placement, SMCG9.0HE3/9AT meets J-STD-020 MSL Level 1 (peak reflow 260 °C) and JESD 201 Class 2 whisker resistance. It supports operation from –55 °C to +150 °C junction temperature, with thermal resistance from junction-to-lead (RθJL) of 15 °C/W enabling effective heat transfer to PCB copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 9.0 V - Maximum continuous reverse voltage before clamping initiates; defines operating margin below breakdown. |
| VBR (Breakdown Voltage) | 10.0–11.1 V at 1.0 mA - Ensures reliable avalanche conduction onset across production lot. |
| VC (Clamping Voltage) | 15.4 V at IPPM = 97.4 A - Limits downstream voltage stress during 10/1000 µs surge events. |
| PPPM (Peak Pulse Power) | 1500 W - Sustains high-energy transients per IEEE C62.35 standard without failure. |
| ID (Leakage Current) | 10 µA max at VWM - Minimizes standby power loss and avoids false triggering in low-current circuits. |
| TJ Range | –55 °C to +150 °C - Enables deployment in under-hood automotive and industrial environments. |
| RθJA | 75 °C/W - Requires minimum 8.0 mm × 8.0 mm copper pad per terminal for rated power dissipation. |
Pinout & Package
SMCG9.0HE3/9AT uses the DO-215AB (SMCG) surface-mount package: gull-wing leads, matte tin-plated terminals, RoHS-compliant, AEC-Q101 qualified. Bi-directional configuration has no polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional avalanche junction | No functional distinction between terminals; clamps equally for ±voltage transients. |
| Lead 1 / Lead 2 | Current path to PCB copper pad | Each lead connects to dedicated 8.0 mm × 8.0 mm thermal pad; RθJL = 15 °C/W enables efficient heat extraction. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics including engine control modules and ADAS sensor interfaces. |
| Glass passivated chip junction | Ensures long-term reliability and stable VBR drift under thermal cycling and humidity exposure. |
| UL 94 V-0 compliant molding | Prevents flame propagation during fault conditions in enclosed industrial enclosures. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and direct placement without baking prior to reflow. |
| Low incremental surge resistance | Minimizes VC rise under high di/dt surges, improving protection margin for 3.3 V/5 V logic interfaces. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load-dump and ESD events in vehicle ECUs. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed directly at connector entry point to shunt transients before reaching interface ICs. Use Value: Clamps 15.4 V at 97.4 A ensures microcontroller GPIOs and transceivers remain within absolute maximum ratings during ISO 7637-2 Pulse 5a events. |
Use Scenario: Safeguarding 24 V digital input channels in programmable logic controllers against inductive kickback from solenoid/relay switching. IC Role / Device Role / Timing Role: Primary overvoltage suppression element on field-side PCB traces, upstream of optocoupler or Schmitt-trigger input stage. Use Value: 1500 W PPPM rating handles repeated 10/1000 µs surges common in factory automation without degradation. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Shielding RS-485 transceivers and Ethernet PHYs in base stations and network edge devices from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: First-line transient suppressor on differential pair routing, paired with common-mode chokes for enhanced immunity. Use Value: Symmetric bi-directional clamping preserves signal integrity on full-duplex links while limiting common-mode voltage excursion. |
Use Scenario: Protecting MCU-based motor driver boards in washing machines and HVAC systems from back-EMF spikes generated by brushed DC motors. IC Role / Device Role / Timing Role: Parallel-connected TVS across motor terminals and H-bridge supply rails to absorb commutation energy. Use Value: 150 °C TJ max and RθJL = 15 °C/W allow sustained operation near heat-generating MOSFETs without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ9.0AHE3/57T | DO-214AC (SMA) package; lower PPPM (400 W); same VWM (9.0 V) and VC (15.4 V). | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a or high-repetition industrial surges. | Select when board space is constrained and surge energy is ≤400 W; verify thermal pad area matches SMA footprint. |
| SMCJ9.0AHE3/9AT | DO-214AB (SMC) package; higher PPPM (1500 W); identical VWM, VC, and AEC-Q101 qualification. | Same protection level but larger footprint (7.11 mm × 6.22 mm vs. SMCG's 7.87 mm × 3.17 mm); higher RθJA (100 °C/W). | Choose only if existing layout accommodates SMC; SMCG9.0HE3/9AT offers superior thermal efficiency in compact layouts. |
Compared with SMAJ9.0AHE3/57T and SMCJ9.0AHE3/9AT, SMCG9.0HE3/9AT delivers equal clamping performance in a thermally optimized, low-profile DO-215AB package - making it preferred for space-constrained automotive and industrial modules requiring consistent 1500 W surge handling.
Availability
SMCG9.0HE3/9AT is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line protection requiring stable component supply, AEC-Q101 compliance, and 1500 W transient suppression capability.
Supply support for SMCG9.0HE3/9AT 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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with emphasis on reliability, automotive qualification, and industrial robustness.
The SMCG series targets high-energy transient suppression in space-constrained applications, combining AEC-Q101 qualification, low-profile DO-215AB packaging, and 1500 W surge capability for next-generation automotive and industrial electronics.
FAQ
What is the clamping voltage of SMCG9.0HE3/9AT at its rated peak pulse current?
The SMCG9.0HE3/9AT has a maximum clamping voltage (VC) of 15.4 V when subjected to its rated peak pulse current (IPPM) of 97.4 A using a 10/1000 µs waveform. This value is measured under standardized test conditions per ANSI/IEEE C62.35 and ensures predictable voltage limiting during surge events. The SMCG9.0HE3/9AT maintains this clamping performance across its full operating temperature range.
Is SMCG9.0HE3/9AT suitable for automotive applications?
Yes, SMCG9.0HE3/9AT is AEC-Q101 qualified and specifically designed for automotive use cases including engine control units, body electronics, and ADAS sensor interfaces. Its bi-directional architecture, 150 °C maximum junction temperature, and robust construction meet stringent automotive reliability requirements. The SMCG9.0HE3/9AT also complies with UL 94 V-0 and J-STD-020 MSL Level 1 standards critical for automotive manufacturing.
What does the "HE3" suffix indicate in SMCG9.0HE3/9AT?
The "HE3" suffix denotes that SMCG9.0HE3/9AT is RoHS-compliant and AEC-Q101 qualified, with matte tin-plated leads meeting JESD 201 Class 2 whisker resistance. This distinguishes it from commercial-grade "E3" variants. The "9AT" indicates packaging in 13-inch diameter tape-and-reel format with 3500 units per reel - optimized for high-volume SMT assembly of the SMCG9.0HE3/9AT.
How does the DO-215AB package of SMCG9.0HE3/9AT compare thermally to DO-214AB (SMC)?
The DO-215AB package of SMCG9.0HE3/9AT provides lower thermal resistance than DO-214AB: RθJA = 75 °C/W versus ~100 °C/W for SMC, due to optimized gull-wing lead geometry and improved copper pad coupling. This allows SMCG9.0HE3/9AT to sustain full 1500 W PPPM with smaller 8.0 mm × 8.0 mm pads, whereas SMC variants require larger thermal land patterns. The SMCG9.0HE3/9AT thus achieves better power density in compact layouts.
Does SMCG9.0HE3/9AT have polarity markings?
No, SMCG9.0HE3/9AT is a bi-directional TVS device and carries no polarity marking on its DO-215AB package. Its symmetrical avalanche structure clamps voltage transients equally in both directions, eliminating orientation constraints during PCB layout and automated placement. This simplifies design and reduces assembly errors compared to uni-directional variants like SMCG9.0A, which feature a cathode band.
SMCG9.0HE3/9AT 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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 16.9V
- Current - Peak Pulse (10/1000µs):
- 88.8A
- 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)
SMCG9.0HE3/9AT FAQ
1.How can I place an order for SMCG9.0HE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG9.0HE3/9AT 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 SMCG9.0HE3/9AT reliable?
The price and inventory of SMCG9.0HE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG9.0HE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG9.0HE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG9.0HE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG9.0HE3/9AT?
SMCG9.0HE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG9.0HE3/9AT 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 SMCG9.0HE3/9AT?
For technical support, including SMCG9.0HE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG9.0HE3/9AT requirements.
6.How does Aetrix verify that SMCG9.0HE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG9.0HE3/9AT 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 SMCG9.0HE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG9.0HE3/9AT?
All SMCG9.0HE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG9.0HE3/9AT, 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 SMCG9.0HE3/9AT part is unused and in its original packaging.
Return procedure for SMCG9.0HE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG9.0HE3/9AT Tags
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