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Vishay General Semiconductor - Diodes Division SMCG15A-E3/9AT
- Part No.:
- SMCG15A-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG15A-E3/9AT.pdf
- Description:
- TVS DIODE 15VWM 24.4VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,747
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Product details
Overview
SMCG15A-E3/9AT from Vishay General Semiconductor is a unidirectional surface-mount TransZORB® transient voltage suppressor (TVS) in DO-215AB (SMCG) package, with 15 V stand-off voltage (VWM), 16.7–18.5 V breakdown voltage (VBR), 24.4 V clamping voltage (VC) at 61.5 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM). It protects MOSFETs and ICs against inductive switching transients in automotive power electronics.
For engineers reviewing the SMCG15A-E3/9AT datasheet, SMCG15A-E3/9AT pinout, SMCG15A-E3/9AT application, or SMCG15A-E3/9AT equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 150 °C max junction temperature, low incremental surge resistance, and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
The SMCG15A-E3/9AT employs a glass-passivated silicon avalanche junction optimized for fast response (<1 ns) to ESD and lightning-induced surges. Its unidirectional configuration provides cathode-anode polarity with band-marked cathode termination, enabling precise integration into DC power rails and signal lines where reverse conduction must be blocked.
Thermal performance is defined by RθJA = 75 °C/W and RθJL = 15 °C/W, supporting operation up to 150 °C junction temperature when mounted per recommended 0.31" × 0.31" copper pad layout. The device meets J-STD-020 MSL Level 1 and passes JESD201 Class 2 whisker testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 15 V - maximum continuous reverse operating voltage before clamping begins; sets safe DC rail margin for 12 V automotive systems |
| VBR min/max | 16.7 V / 18.5 V at 1.0 mA - tight breakdown tolerance ensures predictable turn-on during transients |
| VC @ IPPM | 24.4 V at 61.5 A (10/1000 µs) - clamping voltage defines worst-case overvoltage seen by protected ICs |
| PPPM | 1500 W - peak surge power handling capability under standardized 10/1000 µs waveform |
| ID @ VWM | 1.0 µA - ultra-low leakage preserves battery life and avoids false triggering in low-power sensor circuits |
| TJ max | +150 °C - enables use in under-hood automotive environments without derating |
| AEC-Q101 | Qualified - certified for automotive-grade reliability including temperature cycling, HTRB, and ESD stress |
Pinout & Package
Package: DO-215AB (SMCG) - low-profile, gull-wing surface-mount case with matte tin-plated leads solderable per J-STD-002 and JESD22-B102; meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Anode-side connection point in unidirectional configuration | Must connect to protected line (e.g., 12 V rail); band identifies polarity for correct PCB orientation |
| Anode | Ground-reference terminal | Connects to system ground plane; forms low-inductance path for surge current return |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR over lifetime and immunity to moisture-induced degradation in harsh environments |
| AEC-Q101 qualification | Validates reliability for automotive powertrain and body electronics applications requiring zero-failure field performance |
| MSL Level 1 rating | Allows unlimited floor life and reflow at 260 °C peak without preconditioning-ideal for high-volume SMT lines |
| Low incremental surge resistance | Minimizes VC rise under high di/dt events, improving protection margin for fast-switching MOSFET gates |
| 1500 W PPPM rating | Supports IEC 61000-4-5 Level 4 (4 kV) surge immunity when used with proper PCB layout |
Applications
| Automotive Power Distribution | Industrial Motor Drive Protection |
|---|---|
Use Scenario: Protecting 12 V supply rails feeding engine control unit (ECU) power regulators from load-dump transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery input and DC-DC converter input stage. Use Value: Clamps 12 V rail to ≤24.4 V during ISO 16750-2 load dump (up to 35 V, 100 ms), preventing regulator latch-up or damage. |
Use Scenario: Safeguarding gate drivers in 3-phase inverter modules from Miller-induced voltage spikes. IC Role / Device Role / Timing Role: TVS connected across high-side MOSFET source-drain to clamp dv/dt-induced shoot-through risks. Use Value: Sub-1 ns response limits spike duration, reducing risk of unintended gate turn-on during switching transitions. |
| Automotive Sensor Interface | Telecom DC Power Input |
Use Scenario: Shielding LIN bus transceivers and analog sensor front-ends from ESD and cable discharge events. IC Role / Device Role / Timing Role: Unidirectional TVS on VCC line upstream of LDO, with cathode tied to rail. Use Value: 1.0 µA leakage at 15 V avoids loading low-current sensor bias networks while maintaining ±30 kV HBM ESD robustness. |
Use Scenario: Protecting 48 V telecom power entry points from lightning-induced surges on outdoor plant equipment. IC Role / Device Role / Timing Role: Primary TVS on DC input before bulk capacitor and hot-swap controller. Use Value: 1500 W PPPM handles 10/1000 µs surges per IEC 61000-4-5, enabling compliance with GR-1089-CORE Level 3 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15A-E3/57T | Same VWM (15 V) and PPPM (400 W), but lower power rating and SMA (DO-214AC) package | Limited to <500 W surge events; unsuitable for ISO 16750-2 load dump or IEC 61000-4-5 Level 4 | Select only for cost-sensitive consumer applications with lower surge exposure |
| SMCJ15A-E3/9AT | Same VWM (15 V) and DO-214AB package, but higher PPPM (3000 W) and larger thermal mass | Requires larger PCB footprint (7.11 mm × 6.22 mm vs. SMCG's 6.60 mm × 5.59 mm) and higher mounting pad area | Choose when 3000 W surge handling is required and board space allows larger outline |
Compared with SMAJ15A-E3/57T and SMCJ15A-E3/9AT, the SMCG15A-E3/9AT delivers optimal balance of 1500 W surge capacity, AEC-Q101 qualification, and compact DO-215AB footprint-making it the preferred choice for space-constrained automotive and industrial designs needing validated reliability.
Availability
SMCG15A-E3/9AT is available at Aetrix Electronics and suitable for automotive power distribution, industrial motor drive protection, and telecom DC input protection requiring stable component supply and full traceability.
Supply support for SMCG15A-E3/9AT 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 devices, and optoelectronics with emphasis on reliability and automotive-grade qualification.
The SMCG series was developed specifically for high-reliability transient suppression in automotive and industrial environments, combining AEC-Q101 validation, low-profile packaging, and consistent clamping performance across temperature.
FAQ
What is the clamping voltage of the SMCG15A-E3/9AT under a 10/1000 µs surge?
The SMCG15A-E3/9AT has a maximum clamping voltage (VC) of 24.4 V when subjected to its rated peak pulse current of 61.5 A using the standard 10/1000 µs waveform. This value is measured at TJ = 25 °C on the minimum recommended 8.0 mm × 8.0 mm copper pad layout and defines the upper voltage limit imposed on protected circuitry during surge events.
Is the SMCG15A-E3/9AT suitable for automotive applications?
Yes, the SMCG15A-E3/9AT is AEC-Q101 qualified and explicitly designed for automotive use. It supports operation from −55 °C to +150 °C, withstands load-dump transients per ISO 16750-2, and meets JESD201 Class 2 whisker resistance-making it appropriate for engine control units, body electronics, and ADAS power supplies.
What does the "E3/9AT" suffix indicate in SMCG15A-E3/9AT?
The "E3" denotes RoHS-compliant, industrial-grade construction with matte tin-plated leads, while "9AT" specifies packaging in 13-inch diameter plastic tape and reel with a base quantity of 3500 units. This format supports high-speed automated pick-and-place assembly and is distinct from the 7-inch "57T" reel variant.
How does the SMCG15A-E3/9AT differ from bidirectional variants like SMCG15CA?
The SMCG15A-E3/9AT is unidirectional with cathode/anode polarity and a banded marking, intended for DC line protection where reverse conduction must be blocked. In contrast, SMCG15CA is bidirectional-lacking polarity marking-and conducts symmetrically in both directions, making it suitable for AC signal lines or differential buses like CAN or RS-485.
What is the thermal resistance of the SMCG15A-E3/9AT?
The SMCG15A-E3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and junction-to-lead resistance (RθJL) of 15 °C/W, measured on the specified 0.31" × 0.31" copper pad layout. These values enable reliable operation at full power up to +100 °C ambient when properly mounted, with derating applied above that temperature.
SMCG15A-E3/9AT 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):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 24.4V
- Current - Peak Pulse (10/1000µs):
- 61.5A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCG)
SMCG15A-E3/9AT FAQ
1.How can I place an order for SMCG15A-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG15A-E3/9AT 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 SMCG15A-E3/9AT reliable?
The price and inventory of SMCG15A-E3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG15A-E3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG15A-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG15A-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG15A-E3/9AT?
SMCG15A-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG15A-E3/9AT 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 SMCG15A-E3/9AT?
For technical support, including SMCG15A-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG15A-E3/9AT requirements.
6.How does Aetrix verify that SMCG15A-E3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG15A-E3/9AT 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 SMCG15A-E3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG15A-E3/9AT?
All SMCG15A-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG15A-E3/9AT, 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 SMCG15A-E3/9AT part is unused and in its original packaging.
Return procedure for SMCG15A-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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