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Vishay General Semiconductor - Diodes Division SMB10J14-E3/52
- Part No.:
- SMB10J14-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J14-E3/52.pdf
- Description:
- TVS DIODE 14VWM 25.8VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,022
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Product details
Overview
SMB10J14-E3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, designed for high-energy surge protection on DC power rails 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 clamping voltage (VC) at 43.1 A peak pulse current, and 1000 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive power supply inputs and industrial sensor interfaces.
For engineers reviewing the SMB10J14-E3/52 datasheet, SMB10J14-E3/52 pinout, SMB10J14-E3/52 application, or SMB10J14-E3/52 equivalent, key selection criteria include clamping performance under 43.1 A surge, unidirectional polarity with cathode band marking, AEC-Q101 qualification for automotive use, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR, it avalanches to limit transient energy by diverting surge current to ground. Its glass-passivated junction ensures stable breakdown and low leakage (<1.0 µA at VWM), while thermal resistance RθJA = 72 °C/W supports operation up to TJ = 150 °C.
The device complies with ANSI/IEEE C62.35 for surge suppression and meets J-STD-020 MSL Level 1 (peak reflow 260 °C). Its unidirectional configuration provides forward conduction capability (IFSM = 100 A, 8.3 ms half-sine) and is optimized for DC-biased lines where polarity is fixed - unlike bidirectional variants used in AC or differential signal paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14 V - maximum continuous reverse operating voltage before significant leakage; defines safe DC bias margin. |
| VBR (min/max) | 15.6 V / 17.2 V at IT = 1 mA - precise avalanche onset range ensuring consistent triggering across production lots. |
| VC @ IPPM | 23.2 V at 43.1 A - clamped voltage during 10/1000 µs surge; determines protected circuit's maximum transient exposure. |
| PPPM | 1000 W - peak pulse power handling capacity; enables robust protection against ISO 7637-2 Pulse 1/2a/5a in automotive systems. |
| IPPM | 43.1 A - maximum non-repetitive surge current; sized for 5.0 mm × 5.0 mm PCB copper pad layout per datasheet fig. 2. |
| TJ max | 150 °C - maximum junction temperature; supports under-hood automotive environments with derated power above 25 °C ambient. |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan. |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, molded plastic case with matte tin-plated leads solderable per J-STD-002. Cathode identified by color band on body end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Surge return path | Connected to protected line's lower-potential side (e.g., GND or negative rail); carries full surge current during clamping. |
| Cathode | Reverse-biased terminal / Clamping node | Connected to protected line's higher-potential side (e.g., +12 V rail); avalanche initiates here when VAK > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile DO-214AA package | Enables high-density PCB layouts and compatibility with standard SMT pick-and-place equipment (0.220" × 0.130" footprint). |
| Glass-passivated junction | Ensures stable VBR tolerance, low leakage (<1.0 µA), and long-term reliability under thermal cycling. |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body control, and ADAS modules requiring extended temperature and life testing. |
| 1000 W peak pulse power | Provides immunity to severe transients such as load dump (ISO 16750-2) and inductive switching spikes in 12 V systems. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and direct placement without baking, reducing manufacturing overhead and risk of popcorning. |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple. IC Role / Device Role / Timing Role: Shunt TVS placed between power rail and chassis ground to clamp transients above 14 V. Use Value: Limits voltage seen by downstream LDOs and microcontrollers to ≤23.2 V during 1000 W surges, preventing latch-up or damage. |
Use Scenario: Safeguarding analog outputs of pressure/temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Unidirectional clamp on 0–5 V or 4–20 mA output lines exposed to relay-induced spikes. Use Value: Maintains signal integrity by suppressing <100 ns transients to <23.2 V while adding <1 pF capacitance - negligible at DC/low frequency. |
| DC Motor Drive Power Stage Protection | Consumer Appliance Power Supply Input |
Use Scenario: Shielding MOSFET half-bridges in cordless tool battery packs from back-EMF spikes. IC Role / Device Role / Timing Role: Rail-to-rail TVS across motor terminals or supply pins to absorb inductive kickback. Use Value: Handles 43.1 A surge current with 23.2 V clamping, reducing MOSFET VDS stress and enabling smaller heatsinks. |
Use Scenario: Guarding primary-side SMPS inputs in washing machines against mains-borne surges (IEC 61000-4-5). IC Role / Device Role / Timing Role: First-stage overvoltage protector upstream of bridge rectifier and bulk capacitor. Use Value: Withstands repeated 10/1000 µs surges up to 1000 W, extending capacitor life and avoiding false tripping of OVP circuits. |
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 DO-214AA package, identical VWM/VBR/VC specs, but not AEC-Q101 qualified. | Approved for commercial/industrial use only; excluded from automotive production BOMs requiring qualification evidence. | Select SMBJ14A-E3/52 only if AEC-Q101 is not mandated and cost optimization is prioritized. |
| SMB10J14AHE3/52 | Identical electrical specs and AEC-Q101 qualification, but uses HE3 suffix indicating enhanced whisker resistance (JESD 201 Class 2). | Required for high-reliability automotive modules subject to extended thermal cycling or long service life (>15 years). | Choose SMB10J14AHE3/52 when whisker mitigation is specified in design FMEA or OEM component release requirements. |
Compared with SMBJ14A-E3/52 and SMB10J14AHE3/52, SMB10J14-E3/52 delivers AEC-Q101 compliance at standard whisker resistance (Class 1A), making it the balanced choice for mainstream automotive electronics where qualification is mandatory but extreme whisker risk is not present.
Availability
SMB10J14-E3/52 is available at Aetrix Electronics and suitable for automotive power input protection, industrial sensor interface hardening, and DC motor drive stage surge suppression requiring stable component supply across multi-year production cycles.
Supply support for SMB10J14-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and power efficiency.
The SMB10J series belongs to Vishay's TRANSZORB® TVS portfolio, engineered specifically for high-power-density, AEC-Q101-compliant transient suppression in harsh automotive and industrial environments.
FAQ
What is the clamping voltage of SMB10J14-E3/52 at its rated peak pulse current?
The SMB10J14-E3/52 has a maximum clamping voltage (VC) of 23.2 V when subjected to its rated peak pulse current (IPPM) of 43.1 A using a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and ensures predictable overvoltage limiting for downstream ICs. The SMB10J14-E3/52 maintains this clamping performance across its operational junction temperature range of –55 °C to 150 °C.
Is SMB10J14-E3/52 suitable for automotive applications?
Yes, SMB10J14-E3/52 is AEC-Q101 qualified and explicitly rated for automotive use, including engine control units, body electronics, and ADAS subsystems. Its construction - glass-passivated junction, MSL Level 1 rating, and 150 °C max junction temperature - meets automotive environmental stress requirements. The SMB10J14-E3/52 is documented in Vishay's qualified parts list for automotive-grade transient suppression.
What does the "E3/52" suffix mean in SMB10J14-E3/52?
The "E3" suffix indicates RoHS-compliant, commercial-grade construction with JESD 201 Class 1A whisker resistance; "52" denotes packaging in 7-inch diameter tape-and-reel format containing 750 units. This differs from "HE3/52", which adds AEC-Q101 qualification and Class 2 whisker resistance. The SMB10J14-E3/52 is supplied in this standard reel configuration for automated SMT assembly lines.
How does SMB10J14-E3/52 differ from bidirectional TVS diodes like SMB8J14CA?
The SMB10J14-E3/52 is unidirectional and conducts forward current (IFSM = 100 A), making it suitable for DC-biased lines with defined polarity. In contrast, SMB8J14CA is bidirectional, symmetrically clamps both polarities, and lacks forward surge rating - ideal for AC signals or differential buses. Their VWM, VBR, and VC values differ: SMB10J14-E3/52 has VWM = 14 V, while SMB8J14CA has VWM = 14 V but lower PPPM (800 W vs. 1000 W).
What PCB layout guidance applies to SMB10J14-E3/52 for optimal thermal and surge performance?
Vishay specifies mounting SMB10J14-E3/52 on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve rated IPPM and thermal dissipation. Trace width should be ≥1.0 mm, and thermal vias under pads are recommended for high-reliability automotive designs. The SMB10J14-E3/52 datasheet Figure 2 shows derating curves confirming 1000 W capability only with this minimum pad area.
SMB10J14-E3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- 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):
- 38.8A
- Power - Peak Pulse:
- 1000W (1kW)
- 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 (SMB)
SMB10J14-E3/52 FAQ
1.How can I place an order for SMB10J14-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J14-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 SMB10J14-E3/52 reliable?
The price and inventory of SMB10J14-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 SMB10J14-E3/52 is usually 5 days.
3.What payment methods are accepted for SMB10J14-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J14-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J14-E3/52?
SMB10J14-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J14-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 SMB10J14-E3/52?
For technical support, including SMB10J14-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J14-E3/52 requirements.
6.How does Aetrix verify that SMB10J14-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMB10J14-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 SMB10J14-E3/52 meets industry standards.
7.What is the process for return or replacement of SMB10J14-E3/52?
All SMB10J14-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J14-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 SMB10J14-E3/52 part is unused and in its original packaging.
Return procedure for SMB10J14-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J14-E3/52 Tags
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