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Vishay General Semiconductor - Diodes Division SMB10J14A-M3/5B
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- Part No.:
- SMB10J14A-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J14A-M3/5B.pdf
- Description:
- TVS DIODE 14VWM 23.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,821
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Product details
Overview
SMB10J14A-M3/5B 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.
For engineers reviewing the SMB10J14A-M3/5B datasheet, SMB10J14A-M3/5B pinout, SMB10J14A-M3/5B application, or SMB10J14A-M3/5B equivalent, key selection criteria include clamping performance under automotive load-dump transients, AEC-Q101 qualification status, halogen-free RoHS compliance (M3 suffix), and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a shunt-clamping device that remains high-impedance below VWM = 14 V and rapidly transitions to low-impedance conduction above VBR = 15.6–17.2 V to divert surge energy. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1 ns), critical for protecting downstream MOSFETs and ICs from inductive switching spikes.
The SMB10J14A-M3/5B is rated for TJ = –55 °C to +150 °C operation, has RθJA = 72 °C/W, and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. Its unidirectional polarity (cathode band marked) enables asymmetric protection on positive-rail applications without reverse-bias leakage concerns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14 V - Maximum continuous reverse operating voltage before significant leakage begins; defines safe DC rail margin. |
| VBR (min/max) | 15.6 V / 17.2 V at 1 mA - Voltage range where device enters avalanche breakdown; determines minimum overvoltage threshold. |
| VC @ IPPM | 23.2 V at 43.1 A - Clamped voltage during 10/1000 µs surge; directly limits stress on protected ICs. |
| PPPM | 1000 W - Peak pulse power handling capacity; supports robust protection against ISO 7637-2 Pulse 5a load-dump events. |
| IFSM | 100 A - Non-repetitive forward surge current rating; validates capability to survive single high-energy transients. |
| TJ max | +150 °C - Maximum junction temperature; enables use in under-hood automotive environments. |
| AEC-Q101 | Qualified - Certified for automotive-grade reliability including temperature cycling, HTRB, and ESD testing. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, matte tin-plated leads. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or return path; completes clamping loop during transient events. |
| Cathode | High-side connection point | Connected to protected line (e.g., 12 V rail); polarity marking ensures correct orientation in PCB layout. |
Key Features
| Feature | Design Value |
|---|---|
| Halogen-free construction (M3 suffix) | Meets automotive and industrial environmental compliance requirements without compromising thermal or electrical performance. |
| AEC-Q101 qualification | Validated for automotive electronics including engine control units, body controllers, and ADAS sensor interfaces. |
| Low incremental surge resistance | Enables tighter clamping (VC = 23.2 V) and lower let-through energy compared to standard TVS diodes of similar rating. |
| Glass passivated junction | Ensures stable VBR tolerance, low leakage (<1.0 µA), and long-term reliability under thermal cycling. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking; simplifies SMT manufacturing flow. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply lines in engine control modules from ISO 7637-2 Pulse 5a load-dump transients up to 60 V. IC Role / Device Role / Timing Role: Shunt-clamping TVS diode placed upstream of DC/DC converters and microcontrollers. Use Value: Limits voltage to ≤23.2 V during 1000 W surges, preventing latch-up or gate oxide damage in protected ICs. | Use Scenario: Safeguarding analog inputs of industrial PLC analog I/O modules against ESD and inductive kickback from solenoid drivers. IC Role / Device Role / Timing Role: Fast-response transient suppressor on 4–20 mA current-loop signal lines and sensor bias rails. Use Value: Sub-1 ns response and <1.0 µA leakage preserve signal integrity while enabling reliable field maintenance. |
| Automotive Body Electronics | Consumer Power Adapter Input Stage |
Use Scenario: Overvoltage protection on LIN bus power supplies and door module window motor drivers. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery feed and local LDO regulator input. Use Value: AEC-Q101 qualification and +150 °C rating ensure operation in hot under-dash environments. | Use Scenario: Secondary-side surge suppression in USB-C PD adapters and AC/DC wall adapters exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Final-stage clamping device after primary MOV and fuse, protecting secondary-side controllers and USB interface ICs. Use Value: 1000 W rating and 23.2 V clamping provide margin above 15 V output rails while meeting UL 62368-1 transient immunity. |
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-M3/5B | Same VWM (14 V), identical SMB package, but lower PPPM = 600 W and higher VC = 25.4 V at 23.7 A. | Less suitable for severe automotive load-dump events requiring ≥1000 W rating. | Select SMB10J14A-M3/5B when full 1000 W surge immunity is required; SMBJ14A-M3/5B fits space-constrained designs with lower surge exposure. |
| SMAJ14A-M3/5B | Same VWM and VBR, but smaller SMA (DO-214AC) package, lower PPPM = 400 W, and VC = 25.4 V at 15.8 A. | Limited to consumer-grade or low-energy industrial applications due to reduced power handling. | Choose SMAJ14A-M3/5B only for cost-sensitive, non-automotive applications where board space is critical and surge levels are moderate. |
Compared with SMBJ14A-M3/5B and SMAJ14A-M3/5B, the SMB10J14A-M3/5B delivers 67 % higher peak pulse power and tighter clamping-critical for AEC-Q101-compliant automotive systems where voltage overshoot must be minimized across extended temperature ranges.
Availability
SMB10J14A-M3/5B is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLCs, consumer power adapters, and sensor interface modules requiring stable component supply with halogen-free, AEC-Q101-qualified TVS protection.
Supply support for SMB10J14A-M3/5B 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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The SMB10JxxA series is part of Vishay's TRANSZORB® high-power TVS platform, engineered specifically for automotive and industrial applications demanding robust, AEC-Q101-qualified transient suppression with minimal clamping voltage deviation over temperature.
FAQ
What is the clamping voltage of SMB10J14A-M3/5B at its rated peak pulse current?
The SMB10J14A-M3/5B has a maximum clamping voltage (VC) of 23.2 V at 43.1 A peak pulse current (IPPM) under 10/1000 µs waveform conditions. This value is measured per ANSI/IEEE C62.35 standards and reflects the actual voltage seen by protected circuitry during worst-case surge events. The SMB10J14A-M3/5B maintains this clamping performance across its full operating temperature range.
Is SMB10J14A-M3/5B qualified for automotive applications?
Yes, SMB10J14A-M3/5B is AEC-Q101 qualified and designated for automotive use. Its qualification includes testing for temperature cycling, high-temperature reverse bias (HTRB), and electrostatic discharge (ESD). The "M3" suffix confirms halogen-free, RoHS-compliant construction, and the device is rated for junction temperatures up to +150 °C-meeting requirements for under-hood and body-control module deployments. SMB10J14A-M3/5B is explicitly listed in Vishay's AEC-Q101 qualified product matrix.
What does the "M3/5B" suffix indicate in SMB10J14A-M3/5B?
The "M3" suffix denotes halogen-free, RoHS-compliant construction per Vishay's material categorization standard, while "/5B" specifies packaging in 13-inch plastic tape and reel with 3200 units per reel. This format supports high-volume automated SMT assembly. The M3 grade also satisfies JESD 201 Class 2 whisker resistance and J-STD-020 reflow compatibility (peak 260 °C, MSL Level 1). SMB10J14A-M3/5B is not a commercial-grade variant-it is fully qualified for automotive and industrial use.
How does SMB10J14A-M3/5B differ from bidirectional variants like SMB10J14CA-M3/5B?
SMB10J14A-M3/5B is unidirectional with cathode marking and optimized for DC rail protection where polarity is fixed; SMB10J14CA-M3/5B is bidirectional, lacks polarity marking, and protects AC or dual-polarity signals. The unidirectional SMB10J14A-M3/5B offers higher peak pulse power (1000 W vs. 800 W) and lower clamping voltage (23.2 V vs. 25.4 V at same IPPM). SMB10J14A-M3/5B also supports 100 A IFSM, whereas the bidirectional version does not specify IFSM.
What PCB pad layout is recommended for optimal thermal and surge performance of SMB10J14A-M3/5B?
Vishay specifies a minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad area per terminal for SMB10J14A-M3/5B to achieve rated 1000 W pulse power and thermal resistance (RθJA = 72 °C/W). The pad layout must follow the DO-214AA outline with 0.086" (2.18 mm) minimum anode/cathode pad width and 0.220" (5.59 mm) overall length reference. Use of internal ground planes and thermal vias beneath pads further improves heat dissipation during repetitive surge events. SMB10J14A-M3/5B performance degrades if pad size falls below these values.
SMB10J14A-M3/5B 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 (SMBJ)
SMB10J14A-M3/5B FAQ
1.How can I place an order for SMB10J14A-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J14A-M3/5B 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 SMB10J14A-M3/5B reliable?
The price and inventory of SMB10J14A-M3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J14A-M3/5B is usually 5 days.
3.What payment methods are accepted for SMB10J14A-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J14A-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J14A-M3/5B?
SMB10J14A-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J14A-M3/5B 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 SMB10J14A-M3/5B?
For technical support, including SMB10J14A-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J14A-M3/5B requirements.
6.How does Aetrix verify that SMB10J14A-M3/5B is sourced from the original manufacturer or authorized distributors?
All SMB10J14A-M3/5B 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 SMB10J14A-M3/5B meets industry standards.
7.What is the process for return or replacement of SMB10J14A-M3/5B?
All SMB10J14A-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J14A-M3/5B, 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 SMB10J14A-M3/5B part is unused and in its original packaging.
Return procedure for SMB10J14A-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J14A-M3/5B Tags
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