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Vishay General Semiconductor - Diodes Division SMBG14A-E3/52
- Part No.:
- SMBG14A-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG14A-E3/52.pdf
- Description:
- TVS DIODE 14VWM 23.2VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,717
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Product details
Overview
SMBG14A-E3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 14 V stand-off voltage (VWM), 15.6–17.2 V breakdown voltage (VBR) at 1 mA, 23.2 V maximum clamping voltage (VC) at 25.9 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive power electronics, industrial sensor interfaces, and DC power rail protection.
For engineers reviewing the SMBG14A-E3/52 datasheet, SMBG14A-E3/52 pinout, SMBG14A-E3/52 application, or SMBG14A-E3/52 equivalent, key selection criteria include clamping performance under 25.9 A surge, unidirectional polarity with cathode band marking, AEC-Q101 qualification for automotive use, and SMBG (DO-215AA) surface-mount package compatibility with automated placement.
Technical Context
This TVS diode operates as a fast-acting shunt protector, triggering when reverse voltage exceeds its breakdown threshold to clamp transients within nanoseconds. Its glass-passivated junction ensures stable leakage (<1.0 µA at 14 V) and low incremental surge resistance, enabling precise voltage limiting during ESD or load-dump events.
Designed for single-polarity DC systems, SMBG14A-E3/52 delivers repeatable 600 W surge handling at 0.01% duty cycle, with thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), supporting reliable operation up to 150 °C junction temperature in PCB-mounted configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14 V - Maximum continuous reverse operating voltage before conduction begins; defines safe DC bias margin. |
| VBR (min/max) | 15.6 V / 17.2 V at 1 mA - Confirmed breakdown range ensuring consistent turn-on across production lots. |
| VC @ IPPM | 23.2 V at 25.9 A - Clamped voltage during full 600 W transient; limits downstream IC stress. |
| PPPM | 600 W - Peak pulse power handling per 10/1000 µs waveform; meets IEC 61000-4-5 Level 4 requirements. |
| IFSM | 100 A - Non-repetitive forward surge rating (8.3 ms half-sine); supports load-switching fault tolerance. |
| TJ max | +150 °C - Maximum junction temperature; enables deployment in under-hood automotive environments. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing. |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, low-profile gull-wing leadframe with matte tin-plated terminals solderable per J-STD-002. Cathode identified by molded band on case end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to system 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; connected to protected line. | Defines polarity-sensitive placement; reverse connection disables protection function. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Enables suppression of high-energy transients (e.g., ISO 7637-2 Pulse 5a) without degradation over rated lifetime. |
| 23.2 V clamping at 25.9 A | Keeps protected 12 V automotive circuits below 24 V absolute maximum ratings during surge events. |
| AEC-Q101 qualification | Confirms suitability for automotive powertrain and body electronics requiring zero-failure field reliability. |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow without moisture-induced damage; no bake-out required pre-assembly. |
| Glass-passivated junction | Ensures stable leakage current (<1.0 µA) and long-term parameter stability under thermal cycling. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator ripple. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed between power rail and ground. Use Value: Limits voltage excursions to ≤23.2 V during 100 V/400 ms load dump pulses, preserving MCU and CAN transceiver integrity. | Use Scenario: Safeguarding analog inputs of PLC I/O modules from field-wiring induced surges. IC Role / Device Role / Timing Role: Front-end overvoltage clamp on 4–20 mA or 0–10 V sensor signal lines. Use Value: Responds in <1 ns to clamp transients while maintaining <1.0 µA leakage at 14 V, preventing ADC offset drift. |
| DC-DC Converter Input Protection | Automotive Lighting Control |
Use Scenario: Input-stage surge suppression for buck converters in ADAS camera modules. IC Role / Device Role / Timing Role: Primary overvoltage guard before input capacitor and controller IC. Use Value: Absorbs 600 W pulses without thermal runaway, enabling compact layout with 5.0 mm × 5.0 mm copper pads. | Use Scenario: Protecting LED driver ICs in headlamp control units from inductive kickback. IC Role / Device Role / Timing Role: Unidirectional clamp across MOSFET drain-source during PWM switching. Use Value: Clamps flyback spikes to 23.2 V, preventing gate oxide rupture and extending driver lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ14A-E3/52 | Same VWM (14 V), but lower PPPM = 600 W (same rating), higher VC = 23.2 V (identical), same SMB package. | No functional difference; SMBJ series uses DO-214AA package (slightly larger footprint than SMBG). | Select SMBG14A-E3/52 for tighter board space; SMBJ14A-E3/52 if legacy layout uses DO-214AA. |
| 1.5SMC14A | Same VWM/VBR/VC, but SMC (DO-214AB) package, higher RθJA = 120 °C/W, non-AEC-Q101. | Lacks automotive qualification; suitable only for industrial/commercial use where AEC-Q101 is not mandated. | Choose SMBG14A-E3/52 for automotive programs; 1.5SMC14A only for cost-sensitive non-automotive designs. |
Compared with SMBJ14A-E3/52 and 1.5SMC14A, SMBG14A-E3/52 offers identical electrical specs with AEC-Q101 validation and the smallest footprint (SMBG/DO-215AA), making it optimal for space-constrained automotive modules requiring certified reliability.
Availability
SMBG14A-E3/52 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and DC-DC converter input surge suppression requiring stable component supply across extended production lifecycles.
Supply support for SMBG14A-E3/52 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 SMBG series was developed to deliver AEC-Q101-qualified, low-profile TVS protection for next-generation automotive and industrial electronics where board space, thermal performance, and surge immunity are co-constrained.
FAQ
What is the clamping voltage of SMBG14A-E3/52 and how is it measured?
The SMBG14A-E3/52 has a maximum clamping voltage (VC) of 23.2 V, measured at its peak pulse current (IPPM) of 25.9 A using a 10/1000 µs waveform. This value is guaranteed per Vishay's datasheet (Document Number: 88456, Rev. 09-Jan-2024) and reflects worst-case voltage seen by downstream circuitry during standardized surge events - critical for verifying compliance with IC absolute maximum ratings in designs using SMBG14A-E3/52.
Is SMBG14A-E3/52 suitable for automotive applications?
Yes, SMBG14A-E3/52 is AEC-Q101 qualified per the Vishay datasheet, confirming its reliability for automotive use cases including engine control units, body electronics, and ADAS modules. Its 150 °C maximum junction temperature, MSL Level 1 moisture sensitivity, and validated performance under temperature cycling and HTRB testing make SMBG14A-E3/52 appropriate for under-hood and cabin environments where SMBG14A-E3/52 is specified.
What does the "E3/52" suffix mean in SMBG14A-E3/52?
The "E3" denotes RoHS-compliant, industrial-grade construction with matte tin-plated leads; "/52" specifies packaging in 7-inch plastic tape-and-reel format with 750 units per reel. This ordering code ensures traceability, solderability per J-STD-002, and compatibility with high-speed pick-and-place equipment - all confirmed in Vishay's ordering information table for SMBG14A-E3/52.
How does SMBG14A-E3/52 differ from bidirectional TVS diodes like SMBG14CA?
SMBG14A-E3/52 is unidirectional and features a cathode band for polarity-sensitive placement, while SMBG14CA is bidirectional with no polarity marking and symmetric breakdown in both directions. SMBG14A-E3/52 is intended for DC circuits with defined ground reference; SMBG14CA suits AC-coupled or floating signal lines - a functional distinction clearly documented in Vishay's primary characteristics table for SMBG14A-E3/52.
What is the thermal resistance of SMBG14A-E3/52 and why does it matter?
SMBG14A-E3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead (RθJL) of 20 °C/W, per Vishay's thermal characteristics table. These values determine temperature rise during surge events: lower RθJL enables efficient heat transfer to PCB copper pads, directly impacting reliability during repetitive transients - a key design parameter when implementing SMBG14A-E3/52 in thermally constrained layouts.
SMBG14A-E3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-215AA, SMB 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):
- 25.9A
- Power - Peak Pulse:
- 600W
- 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-214AA (SMBG)
SMBG14A-E3/52 FAQ
1.How can I place an order for SMBG14A-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG14A-E3/52 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 SMBG14A-E3/52 reliable?
The price and inventory of SMBG14A-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG14A-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBG14A-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG14A-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG14A-E3/52?
SMBG14A-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG14A-E3/52 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 SMBG14A-E3/52?
For technical support, including SMBG14A-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG14A-E3/52 requirements.
6.How does Aetrix verify that SMBG14A-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG14A-E3/52 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 SMBG14A-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBG14A-E3/52?
All SMBG14A-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG14A-E3/52, 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 SMBG14A-E3/52 part is unused and in its original packaging.
Return procedure for SMBG14A-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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