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Vishay General Semiconductor - Diodes Division SMCG14AHE3/9AT
- Part No.:
- SMCG14AHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG14AHE3/9AT.pdf
- Description:
- TVS DIODE 14VWM 23.2VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,991
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Product details
Overview
SMCG14AHE3/9AT 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 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) with a 10/1000 µs waveform - deployed in automotive power line and sensor interface protection.
For engineers reviewing the SMCG14AHE3/9AT datasheet, SMCG14AHE3/9AT pinout, SMCG14AHE3/9AT application, or SMCG14AHE3/9AT equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, DO-215AB mechanical data, clamping performance under surge conditions, and direct alternatives for circuit-level ESD/surge hardening in industrial and automotive systems.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, leveraging glass-passivated junction technology for stable avalanche behavior and low incremental surge resistance. Its 1500 W PPPM rating is validated on 8.0 mm × 8.0 mm copper pads per terminal, and thermal resistance is specified at RθJA = 75 °C/W and RθJL = 15 °C/W.
The device meets J-STD-020 MSL Level 1 (peak reflow ≤ 260 °C), supports automated SMT placement, and is qualified to AEC-Q101 for automotive-grade reliability. It exhibits <1.0 µA reverse leakage at VWM and responds within picoseconds to transients induced by inductive switching or lightning surges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 15.6 V / 17.2 V at IT = 1 mA - guaranteed avalanche onset range for design margining |
| VC @ IPPM | 23.2 V at 64.7 A - clamped voltage during 10/1000 µs surge, defining protected circuit stress limit |
| PPPM | 1500 W - peak transient energy absorption capability under standardized surge waveform |
| ID @ VWM | ≤1.0 µA - ultra-low leakage ensures minimal standby power loss in high-impedance circuits |
| TJ max | +150 °C - enables operation in under-hood automotive environments and industrial enclosures |
| AEC-Q101 | Qualified - validated for automotive electronic modules requiring long-term reliability under thermal cycling and humidity |
Pinout & Package
Package: SMCG (DO-215AB) - surface-mount, low-profile gull-wing leaded case with matte tin-plated terminals solderable per J-STD-002 and JESD 22-B102; meets UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to system ground or low-side reference | Defines conduction path during surge clamping - must be routed to lowest-impedance ground plane |
| Cathode | Current exit point in forward bias; marked with band, connected to protected line | Identifies polarity-sensitive placement; reverse-biased during normal operation, avalanches during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable, repeatable avalanche characteristics across temperature and lifetime without degradation |
| MSL Level 1 rating | Enables single-reflow assembly without moisture sensitivity concerns - no baking required pre-SMT |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns rise time), improving protection fidelity |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body control, and ADAS modules subject to harsh environmental stress |
| 1500 W PPPM (10/1000 µs) | Supports IEC 61000-4-5 Level 4 (4 kV line-to-earth) surge immunity in industrial power inputs |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump (ISO 7637-2 Pulse 5a) and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp surges above 14 V. Use Value: Limits clamped voltage to 23.2 V, preventing damage to downstream LDOs, microcontrollers, and CAN transceivers. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in PLC I/O modules exposed to field wiring surges. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to shunt induced transients before reaching signal conditioning op-amps. Use Value: Sub-µA leakage preserves signal integrity in high-impedance sensor bridges; 64.7 A IPPM handles 1 kV/500 Ω IEC 61000-4-5 surges. |
| Consumer USB Power Delivery | Telecom Base Station DC Feeds |
|
Use Scenario: Overvoltage suppression on 5 V/9 V/15 V USB PD input rails in portable docking stations. IC Role / Device Role / Timing Role: Primary front-end TVS on input power path, coordinated with upstream fuse and secondary filtering. Use Value: 14 V VWM aligns with USB PD profile voltages; 1500 W rating absorbs multiple repetitive surges without parametric shift. |
Use Scenario: DC power feed protection in outdoor telecom cabinets where -48 V supply lines are vulnerable to lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS installed at rectifier output to protect DC-DC converters and backplane regulators. Use Value: AEC-Q101 qualification ensures reliability in extended outdoor thermal cycles; DO-215AB footprint supports high-current PCB layout. |
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), lower PPPM (400 W), SMA (DO-214AC) package, RθJA = 85 °C/W | Limited to lower-energy surges (IEC 61000-4-5 Level 2); less suitable for automotive load dump | Select when board space is constrained and surge threat level is moderate (e.g., consumer peripherals) |
| SMCJ14AHE3/9AT | Same VWM (14 V), higher PPPM (3000 W), larger SMC (DO-214AB) package, RθJA = 50 °C/W | Required for high-energy threats like ISO 16750-2 supply voltage spikes; needs more PCB area | Choose when system-level testing demands >1500 W surge handling or extended thermal margin is critical |
Compared with SMCG14AHE3/9AT, SMAJ14A-E3/57T offers smaller footprint but reduced surge capacity, while SMCJ14AHE3/9AT provides double the PPPM at the cost of larger board area and higher thermal mass - enabling trade-offs between protection robustness, layout density, and thermal management.
Availability
SMCG14AHE3/9AT is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor node development, and telecom DC power interface protection requiring stable component supply and AEC-Q101 compliance.
Supply support for SMCG14AHE3/9AT 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The SMCG series targets high-reliability transient suppression in automotive and industrial environments, engineered to meet stringent AEC-Q101 requirements and deliver consistent clamping under repeated surge stress.
FAQ
What is the clamping voltage of SMCG14AHE3/9AT and how is it measured?
The clamping voltage (VC) of SMCG14AHE3/9AT is 23.2 V, measured at a peak pulse current (IPPM) of 64.7 A using the standardized 10/1000 µs double-exponential surge waveform. This value defines the maximum voltage seen by downstream circuitry during a transient event and is validated per ANSI/IEEE C62.35. The SMCG14AHE3/9AT maintains this clamping performance across its operating temperature range.
Is SMCG14AHE3/9AT suitable for automotive applications?
Yes, SMCG14AHE3/9AT is AEC-Q101 qualified and specifically designed for automotive use, including engine control units, body electronics, and ADAS sensors. Its 1500 W PPPM rating, +150 °C maximum junction temperature, and MSL Level 1 reflow compatibility ensure robust performance under automotive thermal, vibration, and surge stress conditions. The SMCG14AHE3/9AT meets ISO 7637-2 and ISO 16750-2 test requirements when properly laid out.
What does the "HE3" suffix indicate in SMCG14AHE3/9AT?
The "HE3" suffix in SMCG14AHE3/9AT denotes RoHS-compliant construction with AEC-Q101 qualification - distinguishing it from industrial-grade "E3" variants. "H" signifies AEC-Q101 qualification, "E3" indicates matte tin plating and RoHS compliance per EU Directive 2011/65/EU. The "9AT" denotes 13-inch tape-and-reel packaging with 3500 units per reel, optimized for high-volume SMT assembly.
How does SMCG14AHE3/9AT differ from bidirectional variants like SMCG14CA?
SMCG14AHE3/9AT is unidirectional with cathode-band polarity and conducts only in reverse avalanche mode, whereas SMCG14CA is bidirectional and symmetrical - clamping in both directions with no polarity marking. The SMCG14AHE3/9AT has lower leakage (<1.0 µA at 14 V) and is preferred for DC power rail protection; SMCG14CA suits AC-coupled signal lines or differential buses where polarity reversal occurs.
What PCB layout practices maximize SMCG14AHE3/9AT surge performance?
To maximize SMCG14AHE3/9AT surge performance, mount it with minimum trace length between the protected line and ground, use 8.0 mm × 8.0 mm copper pads per terminal as specified, avoid vias in high-current paths, and connect the cathode directly to a solid ground plane. Thermal relief should be minimized to maintain RθJL = 15 °C/W. The SMCG14AHE3/9AT achieves full 1500 W PPPM only when implemented per Vishay's recommended pad layout in Document 88457.
SMCG14AHE3/9AT 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCG)
SMCG14AHE3/9AT FAQ
1.How can I place an order for SMCG14AHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG14AHE3/9AT 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 SMCG14AHE3/9AT reliable?
The price and inventory of SMCG14AHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG14AHE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG14AHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG14AHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG14AHE3/9AT?
SMCG14AHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG14AHE3/9AT 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 SMCG14AHE3/9AT?
For technical support, including SMCG14AHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG14AHE3/9AT requirements.
6.How does Aetrix verify that SMCG14AHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG14AHE3/9AT 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 SMCG14AHE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG14AHE3/9AT?
All SMCG14AHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG14AHE3/9AT, 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 SMCG14AHE3/9AT part is unused and in its original packaging.
Return procedure for SMCG14AHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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