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Vishay General Semiconductor - Diodes Division SMB10J14A-E3/5B
- Part No.:
- SMB10J14A-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J14A-E3/5B.pdf
- Description:
- TVS DIODE 14VWM 23.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,034
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Product details
Overview
SMB10J14A-E3/5B 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 - deployed in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the SMB10J14A-E3/5B datasheet, SMB10J14A-E3/5B pinout, SMB10J14A-E3/5B application, or SMB10J14A-E3/5B equivalent, key selection criteria include its AEC-Q101 qualification, low incremental surge resistance, glass-passivated junction, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents <1 µA leakage at 14 V, then rapidly avalanches to clamp transients up to 1000 W without damage. Its glass-passivated chip junction ensures stable VBR tolerance (±5%) and robust surge endurance across -55 °C to +150 °C junction temperature range.
The device complies with ANSI/IEEE C62.35 surge standards and meets J-STD-020 MSL Level 1 (260 °C peak reflow). Its thermal resistance (RθJA = 72 °C/W) and RθJL = 20 °C/W support reliable power dissipation when mounted per recommended 5.0 mm × 5.0 mm pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14 V - maximum continuous reverse operating voltage before significant leakage; defines safe DC rail margin for 12 V automotive systems. |
| VBR (min/max) | 15.6 V / 17.2 V at 1 mA - tight breakdown window ensures predictable turn-on during fast transients (e.g., load dump). |
| VC @ IPPM | 23.2 V at 43.1 A - clamping voltage limits downstream IC stress during 1000 W surges; enables robust protection of 15–20 V logic interfaces. |
| PPPM | 1000 W (10/1000 µs) - high power density allows single-device suppression of ISO 7637-2 Pulse 5a (load dump) without parallel staging. |
| IFSM | 100 A (8.3 ms half-sine) - supports survival against repetitive inductive switching events in motor control circuits. |
| Junction Temp | -55 °C to +150 °C - qualified for under-hood automotive environments and industrial enclosures without derating. |
| AEC-Q101 | Qualified - validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD HBM ≥ 8 kV. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path); conducts during forward surge or bias conditions. |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., 12 V rail); avalanche conduction begins here when VWM exceeded. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability - enables direct use in engine control units, ADAS sensors, and body electronics without additional qualification. |
| Glass-passivated junction | Ensures stable VBR over time and temperature; eliminates risk of moisture-induced parameter drift in humid environments. |
| MSL Level 1 rating | Supports standard SMT reflow profiles up to 260 °C peak without preconditioning - simplifies manufacturing and avoids floor-life constraints. |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes overvoltage exposure to protected ICs - critical for safeguarding 16 V-tolerant CAN transceivers and microcontrollers. |
| 1000 W peak pulse power | Enables single-device protection against severe ISO 7637-2 transients - reduces BOM count versus stacked or hybrid TVS solutions. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Suppressing load-dump transients (ISO 7637-2 Pulse 5a) on 12 V battery-fed ECUs in passenger vehicles. IC Role / Device Role / Timing Role: Shunt-clamping TVS placed between battery rail and input filter capacitor, responding within <1 ns to limit voltage excursion. Use Value: Clamps to 23.2 V at 43.1 A, preventing damage to downstream PMICs and MCU power inputs rated ≤28 V. |
Use Scenario: Protecting analog output lines (e.g., 4–20 mA current loops) in factory automation sensors exposed to relay-switching noise. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional TVS (cathode tied to loop supply) clamps both positive and negative transients on two-wire outputs. Use Value: Limits induced spikes to <23.2 V while maintaining <1 µA leakage at 14 V - preserves loop accuracy and avoids false triggering. |
| Telecom DC Power Input Protection | Consumer Device USB Port Protection |
|
Use Scenario: Guarding 12 V DC input of PoE-powered network switches against lightning-induced surges on building wiring. IC Role / Device Role / Timing Role: Primary front-end TVS on bulk input stage, coordinated with MOVs and gas discharge tubes for staged energy handling. Use Value: Absorbs 1000 W pulses without degradation, enabling compliance with IEC 61000-4-5 Level 4 (4 kV line-earth) when combined with upstream filtering. |
Use Scenario: Safeguarding USB VBUS line in portable speakers and docking stations against ESD and hot-plug overshoot. IC Role / Device Role / Timing Role: Unidirectional shunt device placed between VBUS and GND, activated only during overvoltage events above 14 V. Use Value: Delivers <8 kV HBM ESD immunity and clamps 10/1000 µs surges to 23.2 V - protects USB controller PHYs rated for 25 V absolute max. |
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 SMB package, identical VWM/VBR/VC, but rated for 600 W PPPM (vs. 1000 W). | Limited to lower-energy transients (e.g., IEC 61000-4-4 Level 3); insufficient for ISO 7637-2 Pulse 5a. | Select SMB10J14A-E3/5B where full 1000 W surge capability is required; SMBJ14A-E3/5B suits cost-sensitive consumer designs with milder threat profiles. |
| 1.5SMC14A | Same VWM/VBR, but in larger SMC (DO-214AB) package; PPPM = 1500 W, RθJA = 50 °C/W. | Higher power handling and better thermal performance, but requires 30% larger PCB area and lacks AEC-Q101 qualification. | Choose 1.5SMC14A for industrial power supplies needing >1000 W margin; SMB10J14A-E3/5B preferred for space-constrained, automotive-qualified layouts. |
Compared with SMBJ14A-E3/5B and 1.5SMC14A, SMB10J14A-E3/5B uniquely balances 1000 W surge capacity, AEC-Q101 compliance, and SMB footprint - making it optimal for automotive and high-reliability embedded systems where board space and qualification are co-constrained.
Availability
SMB10J14A-E3/5B is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor modules, and telecom power input stages requiring stable component supply, RoHS-compliant sourcing, and long-term lifecycle continuity.
Supply support for SMB10J14A-E3/5B 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 and application-specific performance.
The SMB10JxxA series targets high-power-density transient suppression in automotive and industrial environments, delivering AEC-Q101-qualified TVS performance in compact SMB packages for space- and reliability-critical designs.
FAQ
What is the clamping voltage of SMB10J14A-E3/5B at its rated peak pulse current?
The SMB10J14A-E3/5B has a maximum clamping voltage (VC) of 23.2 V when subjected to its rated peak pulse current of 43.1 A using the 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and ensures predictable overvoltage limiting for downstream components such as 24 V-rated power management ICs. The SMB10J14A-E3/5B maintains this clamping performance across its full operating temperature range.
Is SMB10J14A-E3/5B suitable for automotive applications?
Yes, SMB10J14A-E3/5B is AEC-Q101 qualified and specifically designed for automotive use, including engine control units, body electronics, and ADAS sensor modules. Its construction includes a glass-passivated junction, MSL Level 1 reflow compatibility, and operation from -55 °C to +150 °C. The SMB10J14A-E3/5B meets stress-test requirements for HTOL, temperature cycling, and human-body-model ESD ≥ 8 kV - confirming suitability for under-hood and cabin environments.
What does the "-E3/5B" suffix indicate in SMB10J14A-E3/5B?
The "-E3/5B" suffix in SMB10J14A-E3/5B denotes RoHS-compliant, commercial-grade packaging in 13-inch plastic tape and reel format with a base quantity of 3200 units. "E3" specifies matte tin plating and JESD 201 Class 2 whisker resistance; "5B" identifies the reel size and orientation. This configuration ensures compatibility with high-speed pick-and-place equipment and supports automated SMT assembly without lead-free reflow concerns. The SMB10J14A-E3/5B is not halogen-free - that variant uses the "M3" suffix.
How does SMB10J14A-E3/5B compare to bidirectional TVS diodes with the same VWM?
SMB10J14A-E3/5B is unidirectional and optimized for DC rail protection where polarity is fixed - offering higher peak pulse power (1000 W vs. 800 W for SMB8J14CA) and tighter VBR tolerance. Bidirectional variants like SMB8J14CA are used on AC or floating lines (e.g., RS-485), but exhibit higher dynamic impedance and reduced surge capacity. The SMB10J14A-E3/5B delivers superior clamping efficiency for 12 V automotive systems where reverse conduction is not required.
What PCB layout guidance applies to SMB10J14A-E3/5B for optimal thermal and electrical performance?
For optimal performance, mount SMB10J14A-E3/5B on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in Vishay's datasheet Figure 6. Minimize trace inductance by keeping leads short and wide; avoid vias near terminals. Use thermal reliefs only if necessary for hand-soldering - production reflow benefits from solid copper connections to enhance heat dissipation. The SMB10J14A-E3/5B achieves RθJA = 72 °C/W under this layout, ensuring safe operation at full 1000 W surge ratings.
SMB10J14A-E3/5B 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 (SMB)
SMB10J14A-E3/5B FAQ
1.How can I place an order for SMB10J14A-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J14A-E3/5B 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-E3/5B reliable?
The price and inventory of SMB10J14A-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J14A-E3/5B is usually 5 days.
3.What payment methods are accepted for SMB10J14A-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J14A-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J14A-E3/5B?
SMB10J14A-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J14A-E3/5B 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-E3/5B?
For technical support, including SMB10J14A-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J14A-E3/5B requirements.
6.How does Aetrix verify that SMB10J14A-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMB10J14A-E3/5B 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-E3/5B meets industry standards.
7.What is the process for return or replacement of SMB10J14A-E3/5B?
All SMB10J14A-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J14A-E3/5B, 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-E3/5B part is unused and in its original packaging.
Return procedure for SMB10J14A-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J14A-E3/5B Tags
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