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Vishay General Semiconductor - Diodes Division SMCG14A-E3/57T
- Part No.:
- SMCG14A-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG14A-E3/57T.pdf
- Description:
- TVS DIODE 14VWM 23.2VC DO215AB
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMCG14A-E3/57T from Vishay General Semiconductor is a unidirectional surface-mount 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.
For engineers reviewing the SMCG14A-E3/57T datasheet, SMCG14A-E3/57T pinout, SMCG14A-E3/57T application, or SMCG14A-E3/57T equivalent, this device is selected for high-energy transient suppression in automotive power lines, industrial sensor interfaces, and DC power rail protection where AEC-Q101 qualification, low incremental surge resistance, and fast response time are critical.
Technical Context
The SMCG14A-E3/57T operates as a unidirectional avalanche diode, leveraging glass-passivated junction technology to deliver precise voltage clamping during ESD and lightning-induced surges. Its 1500 W PPPM rating is validated under standardized 10/1000 µs waveform conditions with derating above 25 °C ambient per Fig. 2.
Thermal performance is defined by RθJA = 75 °C/W and RθJL = 15 °C/W, enabling reliable operation up to TJ = +150 °C. The device meets J-STD-020 MSL Level 1 and supports reflow soldering with peak temperature up to 260 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC bias margin for protected circuitry. |
| VBR (min/max) | 15.6 V / 17.2 V - Breakdown occurs within this range at 1 mA test current; ensures predictable turn-on threshold across production lot. |
| VC @ IPPM | 23.2 V - Clamped voltage at 64.7 A peak pulse current; determines maximum stress imposed on downstream ICs during surge events. |
| PPPM | 1500 W - Peak pulse power handling capability with 10/1000 µs waveform; enables protection against IEC 61000-4-5 Level 4 surges. |
| ID @ VWM | 1.0 µA - Reverse leakage at rated stand-off voltage; ensures minimal standby power loss and signal integrity in high-impedance circuits. |
| TJ max. | +150 °C - Maximum junction temperature; supports operation in under-hood automotive and industrial environments without thermal shutdown. |
| Package | SMCG (DO-215AB) - Low-profile surface-mount outline with matte tin-plated leads; compatible with automated placement and J-STD-002 solderability standards. |
Pinout & Package
SMCG14A-E3/57T uses the SMCG (DO-215AB) package: a gull-wing surface-mount outline with two terminals. Polarity is marked by a cathode band on the body; the banded end is the cathode (anode is unmarked). Mounting requires 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal for rated thermal and surge performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when voltage exceeds VBR; must be routed with low-inductance path to reference plane. |
| Anode | Reference node | Typically tied to system ground or common return; establishes clamping reference point; layout symmetry minimizes parasitic inductance during fast transients. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for engine control units and ADAS power rails. |
| Glass passivated junction | Ensures stable VBR tolerance and long-term parameter stability under humidity and thermal stress - critical for industrial field-deployed equipment. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (<1 ns rise time), improving protection margin for 3.3 V/5 V logic and microcontrollers. |
| MSL Level 1 (260 °C peak) | Enables single-reflow assembly without moisture-related popcorn failure - eliminates pre-bake requirement in high-volume SMT lines. |
| UL 94 V-0 molding compound | Provides flame-retardant encapsulation meeting safety standards for enclosed power supplies and telecom infrastructure. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple transients in passenger vehicles. IC Role / Device Role: Primary clamping element placed between power input and upstream DC/DC converter input stage. Use Value: Withstands 1500 W surges and clamps to 23.2 V, preventing damage to 36 V-rated input stages while maintaining AEC-Q101 compliance. |
Use Scenario: Safeguarding 4–20 mA current-loop sensor transmitters exposed to inductive switching noise in factory automation PLCs. IC Role / Device Role: Bidirectional-capable variant not applicable; SMCG14A-E3/57T used unidirectionally across loop supply rail and ground. Use Value: 1.0 µA leakage at 14 V ensures minimal impact on loop accuracy; fast response preserves signal fidelity during 1 kV EFT bursts. |
| DC Power Rail Protection | Telecom Equipment Surge Suppression |
Use Scenario: Guarding 12 V/24 V backplane power distribution networks in network switches and base station controllers. IC Role / Device Role: Point-of-load TVS placed adjacent to connector entry points and voltage regulator inputs. Use Value: DO-215AB footprint allows dense placement; 75 °C/W RθJA enables thermal management without heatsinks in confined chassis spaces. |
Use Scenario: Mitigating induced surges on Ethernet PHY power lines and auxiliary DC feeds in outdoor telecom cabinets. IC Role / Device Role: Secondary protection layer downstream of gas discharge tube (GDT) primary suppressors. Use Value: 23.2 V clamping complements GDT's higher let-through voltage, achieving coordinated protection per IEC 61000-4-5. |
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); SMA (DO-214AC) package with higher RθJA (110 °C/W). | Limited to lower-energy transients (IEC 61000-4-2 ESD only); unsuitable for IEC 61000-4-5 surge immunity in automotive or industrial settings. | Select SMAJ14A-E3/57T only for cost-sensitive consumer electronics with constrained board space and modest surge requirements. |
| SMCJ14A-E3/57T | Identical VWM (14 V), VBR (15.6–17.2 V), and VC (23.2 V), but higher PPPM (1500 W); SMC (DO-214AB) package with same RθJA (75 °C/W) and AEC-Q101 qualification. | Compatible with identical surge standards but requires larger PCB footprint (7.11 mm × 6.22 mm vs. SMCG's 7.11 mm × 5.59 mm) and different pad layout. | Choose SMCJ14A-E3/57T when existing SMC footprint is standardized; SMCG14A-E3/57T preferred for tighter pitch or height-constrained designs. |
Compared with SMAJ14A-E3/57T and SMCJ14A-E3/57T, the SMCG14A-E3/57T delivers equal surge robustness in a smaller DO-215AB outline, enabling higher component density without sacrificing AEC-Q101 qualification or thermal performance - making it optimal for next-generation automotive modules and compact industrial controllers.
Availability
SMCG14A-E3/57T is available at Aetrix Electronics and suitable for automotive power line protection, industrial sensor interface protection, and DC power rail protection requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMCG14A-E3/57T 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 optimization.
The SMCG series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where AEC-Q101 compliance, low clamping voltage, and consistent surge handling are mandatory.
FAQ
What is the clamping voltage of SMCG14A-E3/57T at its rated peak pulse current?
The SMCG14A-E3/57T has a maximum clamping voltage (VC) of 23.2 V at its rated peak pulse current (IPPM) of 64.7 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 confirmed in the Electrical Characteristics table on page 2 of Vishay document 88457. The SMCG14A-E3/57T maintains this clamping performance across its specified operating temperature range.
Is SMCG14A-E3/57T qualified for automotive applications?
Yes, SMCG14A-E3/57T is AEC-Q101 qualified, as explicitly stated in the Mechanical Data section and confirmed in the Ratings and Characteristics Curves footnote on page 3 of Vishay document 88457. This qualification covers stress tests including temperature cycling, high-temperature reverse bias, and ESD, validating its suitability for under-hood and chassis-mounted automotive electronics such as body control modules and infotainment power supplies. The SMCG14A-E3/57T carries the HE3 suffix variant for full AEC-Q101 compliance.
What package type does SMCG14A-E3/57T use, and what are its key mounting requirements?
SMCG14A-E3/57T uses the SMCG (DO-215AB) surface-mount package - a low-profile gull-wing outline measuring 7.11 mm × 5.59 mm. Per the datasheet, it requires 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal for rated thermal dissipation and surge current handling. The cathode is marked by a band on the body, and the device meets J-STD-002 solderability standards with matte tin-plated leads. The SMCG14A-E3/57T is rated for MSL Level 1 reflow with a 260 °C peak temperature.
How does SMCG14A-E3/57T differ from bidirectional variants like SMCG14CA?
SMCG14A-E3/57T is unidirectional, meaning it conducts surge current only from cathode to anode and requires correct polarity installation; SMCG14CA is bidirectional with symmetrical clamping in both directions and no polarity marking. Their VWM (14 V), VBR (15.6–17.2 V), and VC (23.2 V) are identical, but SMCG14A-E3/57T supports forward surge current (IFSM = 200 A), whereas SMCG14CA does not specify IFSM. The SMCG14A-E3/57T is selected for DC power rail protection where polarity is fixed and forward conduction may occur.
What is the maximum junction temperature and thermal resistance of SMCG14A-E3/57T?
The SMCG14A-E3/57T has a maximum junction temperature (TJ max.) of +150 °C and thermal resistances of RθJA = 75 °C/W (junction-to-ambient, on specified 8.0 mm × 8.0 mm pads) and RθJL = 15 °C/W (junction-to-lead). These values are listed in the Thermal Characteristics table on page 3 of Vishay document 88457 and define its thermal limits under continuous and pulsed power dissipation. Derating curves in Fig. 2 apply above TA = 25 °C, and the SMCG14A-E3/57T remains within safe operating area up to its rated PPPM when mounted per recommended layout.
SMCG14A-E3/57T 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-E3/57T FAQ
1.How can I place an order for SMCG14A-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG14A-E3/57T 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-E3/57T reliable?
The price and inventory of SMCG14A-E3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG14A-E3/57T is usually 5 days.
3.What payment methods are accepted for SMCG14A-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG14A-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG14A-E3/57T?
SMCG14A-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG14A-E3/57T 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-E3/57T?
For technical support, including SMCG14A-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG14A-E3/57T requirements.
6.How does Aetrix verify that SMCG14A-E3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG14A-E3/57T 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-E3/57T meets industry standards.
7.What is the process for return or replacement of SMCG14A-E3/57T?
All SMCG14A-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG14A-E3/57T, 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-E3/57T part is unused and in its original packaging.
Return procedure for SMCG14A-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG14A-E3/57T Tags
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