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Vishay General Semiconductor - Diodes Division SMB10J14A-E3/52
- Part No.:
- SMB10J14A-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J14A-E3/52.pdf
- Description:
- TVS DIODE 14VWM 23.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,650
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Product details
Overview
SMB10J14A-E3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) 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 - used to safeguard automotive sensor interfaces and industrial I/O circuits against ESD and load dump transients.
For engineers reviewing the SMB10J14A-E3/52 datasheet, SMB10J14A-E3/52 pinout, SMB10J14A-E3/52 application, or SMB10J14A-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, RoHS-compliant matte tin terminals, 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 rapidly (<1 ns response) to divert surge current away from downstream ICs. Its glass-passivated junction ensures stable leakage (<1 µA at 14 V) and low incremental surge resistance, enabling consistent clamping at 23.2 V even under full 1000 W transient stress.
The device is rated for -55 °C to +150 °C junction temperature, with thermal resistance of 72 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), supporting reliable operation in engine bay or industrial control enclosures. It meets J-STD-020 MSL Level 1 and passes JESD201 Class 2 whisker testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14 V - maximum continuous reverse operating voltage before conduction begins; sets safe margin below system rail voltage. |
| VBR (min/max) | 15.6 V / 17.2 V at 1 mA - precise avalanche onset range ensuring predictable turn-on during overvoltage events. |
| VC @ IPPM | 23.2 V at 43.1 A - clamping voltage limits downstream component stress during 1000 W transient surges. |
| PPPM | 1000 W (10/1000 µs) - peak power handling capacity for automotive load dump and ISO 7637-2 Pulse 5a compliance. |
| IFSM | 100 A (8.3 ms half-sine) - surge current rating for short-duration inductive switching events like relay coil de-energization. |
| Junction Temp | -55 °C to +150 °C - enables deployment in under-hood automotive, motor drives, and industrial PLC modules. |
| AEC-Q101 | Qualified - validated for automotive electronics per stress test requirements including HTGB, HTRB, and TCT. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD22-B102. Cathode indicated by color band at one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / reverse surge return path | Connected to ground or low-impedance return plane; forms shunt path during transient. |
| Cathode | Reverse voltage sensing / clamping node | Connected to protected line (e.g., 12 V rail or CAN_H); avalanche initiates here above VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and low leakage (<1 µA) across temperature and lifetime. |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and high-temperature reverse bias. |
| MSL Level 1 rating | Allows unlimited floor life and reflow at 260 °C peak without preconditioning - compatible with standard SMT lines. |
| Low incremental surge resistance | Minimizes VC rise under high IPPM, maintaining tight clamping margin for sensitive 12 V logic interfaces. |
| RoHS-compliant, matte tin terminals | Enables lead-free assembly and eliminates whisker risk in long-life industrial applications. |
Applications
| Automotive Sensor Interface | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting analog output lines (e.g., 0–10 V or 4–20 mA) of engine control unit (ECU) sensors from inductive kickback and battery load dump. IC Role / Device Role: Unidirectional shunt TVS placed between signal line and chassis ground. Use Value: Clamps transients to ≤23.2 V, preventing damage to precision DACs and op-amps while maintaining signal integrity under ISO 7637-2 Pulse 5a. | Use Scenario: Safeguarding digital input channels of programmable logic controllers exposed to field wiring surges in factory automation. IC Role / Device Role: Primary overvoltage clamp on 24 V DC input terminals before optocoupler or Schmitt trigger. Use Value: Absorbs up to 1000 W surges without degradation, enabling >100,000 surge cycles per IEC 61000-4-5 Level 4 compliance. |
| DC Power Rail Protection | Automotive Body Control Module |
Use Scenario: Secondary protection on 12 V supply rail downstream of primary fuse and upstream of LDO regulators in infotainment head units. IC Role / Device Role: Standoff-rated TVS suppressing fast transients from alternator ripple and relay switching noise. Use Value: 14 V VWM allows uninterrupted operation during normal battery fluctuations (11–14.5 V), while clamping spikes within safe IC voltage limits. | Use Scenario: Protecting LIN bus transceivers and microcontroller GPIOs in door module ECUs subjected to ESD and cable discharge events. IC Role / Device Role: Localized TVS on each LIN line and power domain, mounted adjacent to connector entry points. Use Value: AEC-Q101 qualification ensures zero failure in vehicle-level ESD testing (IEC 61000-4-2 ±8 kV contact), with <1 ns response preserving signal timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ14A-E3/52 | Same VWM/VC/PPPM, but lower IPPM (38.5 A vs. 43.1 A) and higher VBR min (15.6 V → 15.6 V same, but tighter 15.6–16.2 V range). | Marginally lower surge current capability; suitable where layout limits copper area or thermal dissipation. | Select SMBJ14A-E3/52 if board space constraints require identical footprint but lower cost, accepting ~10% lower IPPM. |
| 1.5SMC14A | Higher PPPM (1500 W), larger SMC (DO-214AB) package, same VWM/VC, but 1.5× footprint and 2.5× weight. | Used where higher energy absorption is needed and PCB real estate permits larger case. | Choose 1.5SMC14A only when system-level testing requires >1000 W margin or thermal mass demands larger case. |
Compared with SMBJ14A-E3/52, SMB10J14A-E3/52 delivers 12% higher peak surge current in the same SMB footprint; versus 1.5SMC14A, it achieves 1000 W protection in 40% smaller area and 60% lower profile - critical for compact automotive modules and dense industrial PCBs.
Availability
SMB10J14A-E3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O protection, DC power rail protection, and body control module designs requiring stable component supply with AEC-Q101 assurance and RoHS compliance.
Supply support for SMB10J14A-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, power efficiency, and automotive-grade validation.
The SMB10JxxA series belongs to Vishay's TRANSZORB® TVS portfolio, engineered specifically for high-power-density transient suppression in space-constrained automotive and industrial environments where fast response, low clamping, and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of SMB10J14A-E3/52 at its rated peak pulse current?
The SMB10J14A-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 standards and ensures downstream components remain within safe voltage limits during surge events. The SMB10J14A-E3/52 maintains this clamping performance across its full operating temperature range.
Is SMB10J14A-E3/52 qualified for automotive applications?
Yes, SMB10J14A-E3/52 is AEC-Q101 qualified, having passed stress tests including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), temperature cycling (TCT), and unbiased highly accelerated stress testing (uHAST). Its RoHS-compliant construction and MSL Level 1 rating further support automotive manufacturing requirements. The SMB10J14A-E3/52 is explicitly designated for use in engine control, body electronics, and ADAS subsystems.
What is the standoff voltage (VWM) and why is it important for SMB10J14A-E3/52?
The standoff voltage (VWM) of SMB10J14A-E3/52 is 14 V - the maximum DC or continuous reverse voltage the device can withstand without significant conduction. This parameter ensures the SMB10J14A-E3/52 remains non-conductive during normal operation (e.g., 12 V automotive systems with ±10% tolerance), avoiding power loss or false triggering while still responding instantly to transients exceeding VBR.
How does SMB10J14A-E3/52 differ from bidirectional variants like SMB10J14CA?
SMB10J14A-E3/52 is unidirectional and features a cathode band marking; it conducts only in reverse bias above VBR, making it ideal for DC rail protection. In contrast, SMB10J14CA is bidirectional with no polarity marking and symmetrical clamping for AC or differential signal lines (e.g., RS-485). The SMB10J14A-E3/52 offers higher peak pulse power (1000 W vs. 800 W) than its bidirectional counterpart due to optimized junction design.
What packaging and reel options are available for SMB10J14A-E3/52?
SMB10J14A-E3/52 is supplied in 7" diameter plastic tape and reel with 750 units per reel (package code /52). It uses matte tin-plated leads compliant with J-STD-002 and JESD22-B102, and meets JESD201 Class 2 whisker resistance. The SMB10J14A-E3/52 is also available in 13" reels (code /5B) for high-volume SMT lines, with identical electrical and mechanical specifications.
SMB10J14A-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:
- 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):
- 43.1A
- 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)
SMB10J14A-E3/52 FAQ
1.How can I place an order for SMB10J14A-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J14A-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 SMB10J14A-E3/52 reliable?
The price and inventory of SMB10J14A-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 SMB10J14A-E3/52 is usually 5 days.
3.What payment methods are accepted for SMB10J14A-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J14A-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J14A-E3/52?
SMB10J14A-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J14A-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 SMB10J14A-E3/52?
For technical support, including SMB10J14A-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J14A-E3/52 requirements.
6.How does Aetrix verify that SMB10J14A-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMB10J14A-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 SMB10J14A-E3/52 meets industry standards.
7.What is the process for return or replacement of SMB10J14A-E3/52?
All SMB10J14A-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J14A-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 SMB10J14A-E3/52 part is unused and in its original packaging.
Return procedure for SMB10J14A-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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