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Vishay General Semiconductor - Diodes Division SMBG14HE3/5B
- Part No.:
- SMBG14HE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG14HE3/5B.pdf
- Description:
- TVS DIODE 14VWM 25.8VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,427
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Product details
Overview
SMBG14HE3/5B from Vishay General Semiconductor is a uni-directional transient voltage suppressor (TVS) diode in the SMBG 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 maximum clamping voltage (VC) at 25.9 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - used to safeguard MOSFETs, ICs, and sensor signal lines in automotive and industrial power rails.
For engineers reviewing the SMBG14HE3/5B datasheet, SMBG14HE3/5B pinout, SMBG14HE3/5B application, or SMBG14HE3/5B equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, DO-215AA package dimensions, clamping performance under surge conditions, and validated alternative parts for design-in continuity and supply resilience.
Technical Context
This TVS diode operates as a uni-directional avalanche clamp, activated when reverse voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable leakage and fast response (<1 ns), while the low incremental surge resistance enables effective energy diversion during transients induced by inductive load switching or ESD events.
The device is rated for -55 °C to +150 °C operating junction temperature, meets MSL Level 1 per J-STD-020 (260 °C reflow peak), and is qualified to AEC-Q101 for automotive-grade reliability. Its matte tin-plated leads comply with J-STD-002 and JESD 22-B102 solderability standards, and the HE3 suffix confirms JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working margin for 12 V nominal systems. |
| VBR (min/max) | 15.6 V / 17.2 V at IT = 1 mA - Tight breakdown tolerance ensures predictable turn-on across production lots and temperature. |
| VC @ IPPM | 23.2 V at 25.9 A - Clamping voltage limits downstream component stress during 600 W transient events. |
| PPPM | 600 W - Peak pulse power handling capability with 10/1000 µs waveform supports IEC 61000-4-5 Level 4 surge immunity. |
| IFSM | 100 A - Single half-sine surge rating (8.3 ms) validates robustness against repetitive load-dump events in automotive 12 V systems. |
| Junction Temp Range | -55 °C to +150 °C - Enables deployment in under-hood automotive modules and industrial motor drives without derating. |
| Package | DO-215AA (SMBG) - Surface-mount gull-wing footprint compatible with automated placement and standard reflow profiles. |
Pinout & Package
DO-215AA (SMBG) package: low-profile surface-mount case with gull-wing leads, 0.235–0.255 inch length, 0.130–0.155 inch width, 0.075–0.095 inch height, cathode band marking on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or lower-potential rail; forms forward-biased path during positive transients on cathode side. |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., 12 V supply or signal); conducts avalanche current when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and body electronics requiring zero-failure reliability over lifetime. |
| Glass passivated junction | Ensures stable leakage current (<1.0 µA at VWM) and long-term parameter stability under thermal cycling and humidity exposure. |
| 600 W peak pulse power | Provides margin against ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 Combination Wave surges in 12 V systems. |
| MSL Level 1 rating | Enables single-reflow assembly without moisture sensitivity concerns; peak reflow temperature up to 260 °C supported. |
| Matte tin plating | Guarantees solder joint integrity per J-STD-002 and eliminates whisker-induced shorting risk (JESD 201 Class 2). |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Guarding |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs from load-dump transients (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Uni-directional TVS placed between power input and ground to clamp surges above 14 V. Use Value: Limits voltage seen by downstream DC/DC converters and microcontrollers to ≤23.2 V, preventing latch-up or gate oxide damage. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events in factory automation. IC Role / Device Role / Timing Role: Low-capacitance TVS connected between signal line and ground to absorb sub-100 ns transients without distorting mV-level signals. Use Value: Maintains signal integrity with <1.0 µA leakage at 14 V and fast response (<1 ns), avoiding baseline shift or ADC offset errors. |
| Consumer Power Adapter Input Stage | Telecom DC Power Interface |
|
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters subjected to lightning-induced surges on mains-connected outputs. IC Role / Device Role / Timing Role: Standoff-rated TVS on 5–19 V output rails to prevent damage to USB-PD controllers or charging ICs during fault conditions. Use Value: Clamps to 23.2 V within nanoseconds, allowing downstream polymeric PTCs time to react and interrupt sustained overcurrent. |
Use Scenario: Protecting -48 V telecom power feeds from accidental polarity reversal and surge coupling from adjacent data lines. IC Role / Device Role / Timing Role: Uni-directional TVS mounted with cathode to -48 V rail and anode to chassis ground to block reverse faults and clamp positive spikes. Use Value: Withstands continuous -48 V bias while clamping positive transients to safe levels, preserving rectifier diodes and monitoring circuitry. |
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-E3/5B | Same VWM (14 V), identical DO-214AA package, but lower PPPM (400 W vs. 600 W) and higher VC (25.4 V vs. 23.2 V). | Less margin for high-energy surges; suitable only where IEC 61000-4-5 Level 3 (4 kV) suffices, not Level 4 (6 kV). | Select SMBJ14A-E3/5B only if board space constraints require DO-214AA footprint and surge requirements are less demanding. |
| SMBG14AHE3/5B | Identical specifications and AEC-Q101 qualification; differs only in marking code (no functional difference). | No application difference - fully interchangeable in layout, thermal, and electrical behavior. | Prefer SMBG14AHE3/5B if sourcing flexibility or dual-source validation is required; same performance and qualification as SMBG14HE3/5B. |
Compared with SMBJ14A-E3/5B, the SMBG14HE3/5B delivers 50 % higher surge power handling and tighter clamping, making it preferred for automotive and industrial designs facing harsh transients; versus SMBG14AHE3/5B, it is functionally identical with no design trade-offs.
Availability
SMBG14HE3/5B is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface guarding, and telecom DC feed protection requiring stable component supply, AEC-Q101 compliance, and 600 W surge resilience.
Supply support for SMBG14HE3/5B 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, precision, and automotive qualification.
The SMBG series was engineered for high-power transient suppression in space-constrained surface-mount applications, targeting automotive, industrial, and telecom systems needing AEC-Q101-compliant, high-PPPM TVS diodes in DO-215AA packaging.
FAQ
What is the clamping voltage of SMBG14HE3/5B and how is it measured?
The SMBG14HE3/5B 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 reflects the actual voltage imposed on protected circuitry during a standardized surge event and is guaranteed across temperature and production lots per Vishay's datasheet revision 12-Nov-12.
Is SMBG14HE3/5B suitable for automotive applications?
Yes, SMBG14HE3/5B is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its -55 °C to +150 °C junction temperature range, MSL Level 1 reflow compatibility, and 100 A IFSM rating validate suitability for engine control modules, body control units, and ADAS power supplies where load-dump and ESD immunity are critical.
What does the "HE3" suffix mean in SMBG14HE3/5B?
The "HE3" suffix in SMBG14HE3/5B indicates RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. The "H" denotes automotive qualification, "E3" specifies matte tin plating meeting J-STD-002 solderability and JESD 22-B102 lead finish standards - distinct from commercial-grade "E3" variants.
How does SMBG14HE3/5B differ from SMBG14AHE3/5B?
SMBG14HE3/5B and SMBG14AHE3/5B are functionally identical: same VWM, VBR, VC, PPPM, package, and AEC-Q101 qualification. The "A" in SMBG14AHE3/5B is a legacy marking variant with no electrical or mechanical difference; both are drop-in replacements per Vishay's ordering documentation and datasheet Table 1.
What is the thermal resistance of SMBG14HE3/5B and why does it matter?
SMBG14HE3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead (RθJL) of 20 °C/W. These values determine how effectively heat from surge dissipation transfers to PCB copper pads or leads; proper 0.2" × 0.2" (5.0 mm × 5.0 mm) pad layout is required to maintain rated PPPM and avoid thermal runaway during repetitive transients.
SMBG14HE3/5B 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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 14V
- Voltage - Breakdown (Min):
- 15.6V
- Voltage - Clamping (Max) @ Ipp:
- 25.8V
- Current - Peak Pulse (10/1000µs):
- 23.3A
- Power - Peak Pulse:
- 600W
- 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-214AA (SMBG)
SMBG14HE3/5B FAQ
1.How can I place an order for SMBG14HE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG14HE3/5B 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 SMBG14HE3/5B reliable?
The price and inventory of SMBG14HE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG14HE3/5B is usually 5 days.
3.What payment methods are accepted for SMBG14HE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG14HE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG14HE3/5B?
SMBG14HE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG14HE3/5B 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 SMBG14HE3/5B?
For technical support, including SMBG14HE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG14HE3/5B requirements.
6.How does Aetrix verify that SMBG14HE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG14HE3/5B 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 SMBG14HE3/5B meets industry standards.
7.What is the process for return or replacement of SMBG14HE3/5B?
All SMBG14HE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG14HE3/5B, 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 SMBG14HE3/5B part is unused and in its original packaging.
Return procedure for SMBG14HE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG14HE3/5B Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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