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Vishay General Semiconductor - Diodes Division SMCG14AHE3/57T
- Part No.:
- SMCG14AHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG14AHE3/57T.pdf
- Description:
- TVS DIODE 14VWM 23.2VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,334
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Product details
Overview
SMCG14AHE3/57T 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, 1500 W peak pulse power (10/1000 µs), clamping voltage of 23.2 V at 64.7 A, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SMCG14AHE3/57T datasheet, SMCG14AHE3/57T pinout, SMCG14AHE3/57T application, or SMCG14AHE3/57T equivalent, this device is selected for high-surge-capability, low-clamping, RoHS-compliant, surface-mount TVS protection in automotive power rails, sensor interfaces, and industrial control inputs where fast response (<1 ns), low incremental surge resistance, and MSL Level 1 reflow compatibility are critical.
Technical Context
The SMCG14AHE3/57T operates as a unidirectional avalanche diode with glass-passivated junction, delivering precise voltage clamping during transients induced by inductive load switching or ESD events. Its 1500 W PPPM rating and 23.2 V VC at 64.7 A ensure effective suppression of 10/1000 µs surges without latch-up or thermal runaway.
Designed for surface-mount automation, it uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, meets UL 94 V-0 flammability, and supports operating junction temperatures from –55 °C to +150 °C - validated under AEC-Q101 stress testing for automotive under-hood applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14 V - maximum continuous reverse working voltage before clamping begins |
| VBR min/max | 15.6 V / 17.2 V at 1 mA - tight breakdown tolerance ensures predictable turn-on threshold |
| VC @ IPPM | 23.2 V at 64.7 A - clamping voltage defines worst-case voltage seen by protected circuit |
| PPPM | 1500 W (10/1000 µs) - surge energy handling capacity for IEC 61000-4-5 compliance |
| ID @ VWM | 1.0 µA - ultra-low leakage preserves signal integrity and battery life in always-on circuits |
| TJ max | +150 °C - enables placement near hot components like power MOSFETs or DC/DC converters |
| MSL Level | Level 1 (260 °C peak) - supports standard lead-free reflow without pre-baking |
Pinout & Package
Package: SMCG (DO-215AB) - low-profile, gull-wing surface-mount package with cathode band marking; 0.31" × 0.31" copper pad layout recommended per datasheet fig. 2 for thermal and surge performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to ground or low-side reference | Provides return path during clamping; must be routed with low-inductance trace to minimize overshoot |
| Cathode | Current exit terminal in forward bias; marked with band; connects to protected line | Defines polarity-sensitive placement - reverse connection disables protection function |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive under-hood use including temperature cycling, HTRB, and ESD stress per JEDEC standards |
| Glass passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a) |
| MSL Level 1 | Enables direct placement into high-volume SMT lines without moisture sensitivity handling |
| RoHS-compliant HE3 suffix | Meets EU RoHS Directive 2011/65/EU and JESD201 Class 2 whisker resistance |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump (ISO 16750-2) 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 rail voltage to ≤23.2 V during 1500 W surges, preventing damage to downstream LDOs, MCUs, and CAN transceivers. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in PLC modules exposed to field wiring transients. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to shunt ESD (IEC 61000-4-2) and inductive kickback. Use Value: Sub-1 ns response and 1.0 µA leakage preserve signal fidelity while surviving ±30 kV contact discharge. |
| Telecom Line Card Surge Suppression | Consumer Device USB Port Protection |
Use Scenario: Secondary protection on AC/DC input stages of telecom power supplies subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Standoff-rated TVS upstream of bridge rectifier to absorb differential-mode transients. Use Value: 1500 W rating handles multi-kA surges; DO-215AB footprint allows dense layout without compromising creepage. | Use Scenario: Overvoltage guard on VBUS line of USB-C ports in portable audio/video equipment. IC Role / Device Role / Timing Role: Unidirectional clamp referenced to system ground, activated only during overvoltage faults. Use Value: 14 V VWM aligns with USB PD 3.0 specifications; 23.2 V clamping prevents damage to USB controller ICs. |
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, higher RθJA (90 °C/W) | Lower surge capability; suitable for consumer-grade, non-automotive designs with less stringent transient requirements | Select when cost or board space is prioritized over automotive-grade surge margin and thermal performance |
| SMCJ14AHE3/57T | Same VWM (14 V), identical PPPM (1500 W), but SMC (DO-214AB) package with larger footprint and higher thermal mass | Higher thermal inertia allows longer surge duration handling; requires more PCB area than SMCG | Choose when sustained surge duty cycle exceeds SMCG limits or when legacy SMC footprint compatibility is required |
Compared with SMAJ14A-E3/57T and SMCJ14AHE3/57T, the SMCG14AHE3/57T delivers equivalent clamping performance in a smaller DO-215AB footprint with superior MSL Level 1 reflow support and AEC-Q101 validation - making it optimal for space-constrained, high-reliability automotive and industrial modules.
Availability
SMCG14AHE3/57T is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom line card surge suppression requiring stable component supply, full traceability, and long-term lifecycle assurance.
Supply support for SMCG14AHE3/57T 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 part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in automotive, industrial, and telecom systems where AEC-Q101 qualification, low clamping, and automated assembly compatibility are mandatory.
FAQ
What is the clamping voltage of SMCG14AHE3/57T and how is it measured?
The SMCG14AHE3/57T has a maximum clamping voltage (VC) of 23.2 V, measured at a peak pulse current (IPPM) of 64.7 A using the standardized 10/1000 µs double-exponential waveform. This value represents the worst-case voltage imposed on the protected circuit during surge events and is guaranteed across the full operating temperature range per Vishay Document 88457.
Is SMCG14AHE3/57T suitable for automotive applications?
Yes, SMCG14AHE3/57T is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its construction - glass-passivated junction, MSL Level 1 reflow compatibility, –55 °C to +150 °C operating range, and validation against temperature cycling, HTRB, and ESD stress - confirms its suitability for ECUs, body control modules, and ADAS sensor interfaces.
What does the "HE3" suffix mean in SMCG14AHE3/57T?
The "HE3" suffix indicates RoHS-compliant construction with AEC-Q101 qualification. Per Vishay's ordering nomenclature, "HE3" denotes matte tin-plated leads, JESD201 Class 2 whisker resistance, and full compliance with automotive reliability standards - distinguishing it from industrial-grade "E3" or halogen-free "HM3" variants.
How does SMCG14AHE3/57T differ from bidirectional versions like SMCG14CA?
SMCG14AHE3/57T is unidirectional, with polarity marked by a cathode band and intended for DC line protection where reverse conduction must be blocked. In contrast, SMCG14CA is bidirectional, has no polarity marking, and clamps in both directions - making it suitable for AC signal lines or differential buses like RS-485, but not for asymmetric DC rails.
What is the recommended PCB pad layout for SMCG14AHE3/57T?
Vishay specifies a 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pad area for each terminal to achieve rated 1500 W pulse power and thermal performance. Smaller pads reduce surge capability and increase junction temperature; the layout must maintain minimum solder mask dams and avoid thermal reliefs on power paths to ensure reliable clamping during repetitive transients.
SMCG14AHE3/57T 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCG)
SMCG14AHE3/57T FAQ
1.How can I place an order for SMCG14AHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG14AHE3/57T 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 SMCG14AHE3/57T reliable?
The price and inventory of SMCG14AHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG14AHE3/57T is usually 5 days.
3.What payment methods are accepted for SMCG14AHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG14AHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG14AHE3/57T?
SMCG14AHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG14AHE3/57T 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 SMCG14AHE3/57T?
For technical support, including SMCG14AHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG14AHE3/57T requirements.
6.How does Aetrix verify that SMCG14AHE3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG14AHE3/57T 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 SMCG14AHE3/57T meets industry standards.
7.What is the process for return or replacement of SMCG14AHE3/57T?
All SMCG14AHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG14AHE3/57T, 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 SMCG14AHE3/57T part is unused and in its original packaging.
Return procedure for SMCG14AHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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