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Vishay General Semiconductor - Diodes Division SMCG14A-E3/9AT
- Part No.:
- SMCG14A-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG14A-E3/9AT.pdf
- Description:
- TVS DIODE 14VWM 23.2VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,061
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Product details
Overview
SMCG14A-E3/9AT from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) package, with a 14 V stand-off voltage (VWM), 15.6–17.2 V breakdown voltage (VBR) at 1 mA, 23.2 V clamping voltage (VC) at 64.7 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM). It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients in automotive and industrial power electronics.
For engineers reviewing the SMCG14A-E3/9AT datasheet, SMCG14A-E3/9AT pinout, SMCG14A-E3/9AT application, or SMCG14A-E3/9AT equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, DO-215AB package dimensions, clamping performance under 10/1000 µs surge, and real-world protection use cases for board-level ESD and surge design.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, optimized for fast response (<1 ns) to voltage transients. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance, enabling reliable suppression of 8.3 ms half-sine surges up to 200 A (IFSM) and repetitive 10/1000 µs pulses up to 1500 W.
The SMCG14A-E3/9AT is rated for -55 °C to +150 °C operating junction temperature, features a thermal resistance of 75 °C/W (junction-to-ambient) on standard 8.0 mm × 8.0 mm copper pads, and meets J-STD-020 MSL Level 1 with 260 °C reflow peak - confirming suitability for high-reliability automated SMT assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 15.6 V / 17.2 V at 1 mA - guaranteed breakdown range defining turn-on threshold |
| VC @ IPPM | 23.2 V at 64.7 A - clamped voltage during 10/1000 µs surge, limiting stress on downstream ICs |
| PPPM | 1500 W - peak pulse power handling capability per standardized surge waveform |
| ID @ VWM | 1.0 µA - ultra-low leakage ensuring minimal standby power loss in high-impedance circuits |
| TJ max | +150 °C - extended junction temperature rating supporting under-hood automotive use |
| MSL Level | Level 1 (J-STD-020) - supports lead-free reflow without moisture sensitivity concerns |
Pinout & Package
Package: SMCG (DO-215AB) - surface-mount, low-profile gull-wing package with matte tin-plated leads, UL 94 V-0 molding compound, and 0.220–0.245 inch (5.59–6.22 mm) body length.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Anode-side connection in unidirectional configuration | Connected to protected line; clamps when voltage exceeds VBR relative to anode |
| Anode | Reference/ground return path | Typically tied to system ground or low-impedance return plane to complete clamping loop |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Glass-passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin |
| MSL Level 1 rating | Enables direct placement into reflow oven without baking, reducing manufacturing cost and risk |
| RoHS-compliant (E3 suffix) | Meets industrial environmental compliance requirements with matte tin terminations |
Applications
| Automotive Power Distribution | Industrial Motor Drive Inputs |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load-dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed across power rail and ground to clamp positive-going surges above 14 V. Use Value: Limits rail voltage to ≤23.2 V during 1500 W transients, preventing damage to 3.3 V/5 V logic and CAN transceivers. | Use Scenario: Safeguarding gate drivers and microcontrollers in variable-frequency drives exposed to IGBT switching noise. IC Role / Device Role / Timing Role: TVS mounted at motor controller input terminals to absorb inductive kickback from contactors and solenoids. Use Value: Fast clamping (<1 ns) and 64.7 A IPPM capability suppress 10/1000 µs surges before they propagate into control circuitry. |
| Automotive Sensor Signal Lines | Industrial PLC Analog Input Protection |
Use Scenario: Shielding LIN bus or analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-leakage (1.0 µA) unidirectional TVS placed between signal line and chassis ground. Use Value: Preserves signal integrity with minimal DC loading while clamping ±15 kV ESD per IEC 61000-4-2. | Use Scenario: Hardening 4–20 mA current-loop inputs in programmable logic controllers against field-wiring surge coupling. IC Role / Device Role / Timing Role: TVS integrated into front-end protection network ahead of precision op-amps and ADCs. Use Value: 23.2 V clamping voltage ensures downstream components see no more than safe overvoltage, maintaining measurement accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ14A-E3/57T | Same VWM (14 V) and VC (23.2 V), but lower PPPM (400 W) and smaller SMA (DO-214AC) package | Limited to lower-energy transients; unsuitable for automotive load-dump per ISO 7637-2 Pulse 5a | Select SMAJ14A-E3/57T only for space-constrained consumer designs with <400 W surge exposure |
| SMCJ14A-E3/9AT | Same VWM (14 V) and VC (23.2 V), identical DO-215AB (SMCG) package, but higher PPPM (1500 W) and same 1500 W rating | No functional difference in clamping or surge handling; differs only in packaging tape/reel size (9AT = 3500 pcs) | SMCJ14A-E3/9AT is functionally identical and drop-in compatible; verify reel logistics match production planning |
Compared with SMAJ14A-E3/57T, SMCG14A-E3/9AT delivers 3.75× higher surge power handling in the same footprint; versus SMCJ14A-E3/9AT, it shares identical electrical and mechanical specs but belongs to Vishay's TRANSZORB® family with documented AEC-Q101 validation for automotive use.
Availability
SMCG14A-E3/9AT is available at Aetrix Electronics and suitable for automotive power distribution, industrial motor drive inputs, and sensor signal line protection requiring stable component supply across high-volume production cycles.
Supply support for SMCG14A-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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and automotive qualification.
The SMCG series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-power transient suppression in harsh environments - including under-hood automotive, industrial automation, and telecom infrastructure.
FAQ
What is the clamping voltage of SMCG14A-E3/9AT under a 10/1000 µs surge?
The SMCG14A-E3/9AT has a maximum clamping voltage (VC) of 23.2 V when subjected to its rated peak pulse current (IPPM) of 64.7 A using the standardized 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in Vishay's official datasheet revision 09-Jan-2024 (Document Number: 88457). The clamping performance ensures downstream ICs remain within safe operating limits during surge events.
Is SMCG14A-E3/9AT qualified for automotive applications?
Yes, SMCG14A-E3/9AT is AEC-Q101 qualified, as explicitly stated in the Vishay datasheet. The "E3" suffix denotes RoHS-compliant industrial grade, and the device meets all stress tests required for automotive use - including temperature cycling, highly accelerated life testing (HALT), and ESD robustness. It is widely deployed in engine control units, body electronics, and ADAS sensor modules where reliability under thermal and electrical stress is critical.
What does the "9AT" suffix mean in SMCG14A-E3/9AT?
The "9AT" suffix in SMCG14A-E3/9AT indicates the packaging configuration: 13-inch diameter plastic tape and reel containing 3500 units. This differs from the "57T" variant (7-inch reel, 850 units). The "E3" denotes RoHS-compliant, matte tin-plated leads and industrial-grade qualification. All electrical and thermal specifications remain identical across both reel formats - only logistics and quantity per reel differ.
How does SMCG14A-E3/9AT compare to bidirectional variants like SMCG14CA?
SMCG14A-E3/9AT is unidirectional, with polarity marked by a cathode band and designed to clamp only positive transients relative to ground. In contrast, SMCG14CA is bidirectional, offering symmetrical clamping for AC-coupled or floating lines. Their VWM (14 V), VBR (15.6–17.2 V), and VC (23.2 V) are identical, but SMCG14A-E3/9AT supports forward conduction (IFSM = 200 A), whereas SMCG14CA does not. Selection depends strictly on circuit topology and surge polarity requirements.
What is the thermal resistance of SMCG14A-E3/9AT, and how does it affect layout?
The SMCG14A-E3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal, as specified in the Vishay datasheet. To maintain TJ ≤ 150 °C under 6.5 W steady-state dissipation, PCB layout must provide adequate copper area and thermal vias. Reducing pad size or omitting thermal relief increases RθJA, risking thermal runaway during repetitive surge events.
SMCG14A-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):
- 14V
- Voltage - Breakdown (Min):
- 15.6V
- Voltage - Clamping (Max) @ Ipp:
- 23.2V
- Current - Peak Pulse (10/1000µs):
- 64.7A
- 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)
SMCG14A-E3/9AT FAQ
1.How can I place an order for SMCG14A-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG14A-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 SMCG14A-E3/9AT reliable?
The price and inventory of SMCG14A-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 SMCG14A-E3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG14A-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG14A-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG14A-E3/9AT?
SMCG14A-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG14A-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 SMCG14A-E3/9AT?
For technical support, including SMCG14A-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG14A-E3/9AT requirements.
6.How does Aetrix verify that SMCG14A-E3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG14A-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 SMCG14A-E3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG14A-E3/9AT?
All SMCG14A-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG14A-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 SMCG14A-E3/9AT part is unused and in its original packaging.
Return procedure for SMCG14A-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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