Vishay General Semiconductor - Diodes Division SMBJ10-E3/5B
- Part No.:
- SMBJ10-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ10-E3/5B.pdf
- Description:
- TVS DIODE 10VWM 18.8VC DO214AA
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
SMBJ10-E3/5B from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for robust overvoltage protection of sensitive electronics. It features a 10 V stand-off voltage (VWM), 11.1–12.3 V breakdown voltage (VBR) at 1 mA, 17.0 V maximum clamping voltage (VC) at 35.3 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed on power rails and signal lines of industrial sensors and automotive ECUs.
For engineers reviewing the SMBJ10-E3/5B datasheet, SMBJ10-E3/5B pinout, SMBJ10-E3/5B application, or SMBJ10-E3/5B equivalent, this page delivers verified electrical parameters, thermal behavior under surge conditions, RoHS-compliant commercial-grade qualification, and precise mechanical mounting data per J-STD-020 MSL Level 1.
Technical Context
This unidirectional TVS diode operates as a clamping device across DC supply lines or low-speed signal paths, activating when transient voltage exceeds its reverse stand-off threshold (VWM = 10 V) and limiting downstream voltage to ≤17.0 V at 35.3 A. Its glass-passivated junction ensures stable avalanche characteristics and fast response time (<1 ns), while the SMB package supports automated placement and meets UL 94 V-0 flammability rating.
The device is rated for -55 °C to +150 °C operating junction temperature, with thermal resistance RθJA = 100 °C/W and RθJL = 20 °C/W. It complies with ANSI/IEEE C62.35 for surge protection and is RoHS-compliant (E3 suffix), with no halogen content specified - suitable for commercial-grade applications where AEC-Q101 qualification is not required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - maximum continuous reverse working voltage before clamping initiates |
| VBR (min/max) | 11.1 V / 12.3 V at IT = 1 mA - guaranteed avalanche onset range under standardized test current |
| VC @ IPPM | 17.0 V at 35.3 A - clamped voltage during 600 W 10/1000 µs surge, defining worst-case stress on protected IC |
| PPPM | 600 W - peak transient power handling capability with standard lightning/surge waveform |
| ID @ VWM | 5.0 µA max - leakage current at stand-off voltage, critical for low-power sensor rail integrity |
| TJ max. | +150 °C - maximum junction temperature enabling operation in engine bay or industrial enclosures |
| Package | SMB (DO-214AA) - 0.205" × 0.130" footprint with cathode band marking, compatible with standard SMT reflow profiles |
Pinout & Package
SMBJ10-E3/5B uses the SMB (DO-214AA) surface-mount package: 2-terminal, unidirectional configuration with cathode marked by a band on the body. The package measures 4.57 mm × 3.94 mm × 2.20 mm (L × W × H), with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102, and meets MSL Level 1 per J-STD-020 (peak reflow = 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or return path; defines reference for clamping action |
| Cathode | High-side connection point | Connected to protected line (e.g., 12 V rail); band-marked end carries surge current into ground |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables single-device protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 12 V systems |
| 17.0 V clamping voltage at 35.3 A | Limits voltage seen by downstream MOSFET gate drivers or microcontroller I/O pins during transients |
| Glass passivated junction | Ensures stable, repeatable avalanche performance over 1000+ surge events without parameter drift |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking, reducing manufacturing overhead |
| RoHS-compliant E3 suffix | Meets EU Directive 2011/65/EU with no exemption reporting required for commercial PCB assembly |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Card |
|---|---|
Use Scenario: Protecting 12 V supply rail of BCM microcontroller from load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between fused battery input and LDO regulator input. Use Value: Clamps transients to ≤17.0 V, preventing LDO overvoltage shutdown and MCU brownout during ISO 16750-2 pulses. |
Use Scenario: Safeguarding 24 V digital input optocoupler interface against field-wiring induced surges. IC Role / Device Role / Timing Role: Standoff-rated TVS on input terminal block, shunting energy before signal conditioning circuitry. Use Value: Limits voltage excursion to <17.0 V during 1 kV/500 Ω surge tests (IEC 61000-4-5), preserving optocoupler CTR stability. |
| Consumer Appliance Motor Drive Board | Telecom Remote Power Feeder Unit |
Use Scenario: Shielding gate driver ICs from inductive kickback generated by brushed DC motor commutation. IC Role / Device Role / Timing Role: TVS mounted directly across motor H-bridge high-side FET source-to-drain path. Use Value: Responds in <1 ns to clamp flyback spikes to 17.0 V, avoiding gate oxide rupture in 30 V-rated drivers. |
Use Scenario: Suppressing lightning-induced surges on -48 V DC feed lines powering remote radio units. IC Role / Device Role / Timing Role: Series-connected unidirectional TVS on feed line input, referenced to system ground. Use Value: Handles 600 W surges while maintaining <5 µA leakage at -48 V, minimizing standby power loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10A-E3/52 | Same electrical specs; differs only in tape-and-reel packaging (750 pcs vs. 3200 pcs on 13" reel) | No functional difference; selected when smaller reel quantity aligns with production batch size | Choose SMBJ10A-E3/52 for pilot runs or low-volume builds requiring shorter lead times |
| SMBJ10CA-E3/5B | Bidirectional variant: symmetric VBR (11.1–12.3 V), same VC (17.0 V), but ID doubled to 10 µA at VWM | Required for AC-coupled or polarity-agnostic signal lines (e.g., RS-485, CAN bus), not DC rails | Select SMBJ10CA-E3/5B only when protecting bidirectional interfaces where reverse polarity transients occur |
Compared with SMBJ10A-E3/52, SMBJ10-E3/5B offers identical protection performance with higher reel quantity for cost-efficient high-volume SMT assembly; versus SMBJ10CA-E3/5B, it provides lower leakage and optimized clamping for unidirectional DC power domains - making SMBJ10-E3/5B the preferred choice for 12 V/24 V supply rail protection.
Availability
SMBJ10-E3/5B is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC input cards, and consumer appliance motor drive boards requiring stable component supply, long-term manufacturability, and RoHS-compliant sourcing.
Supply support for SMBJ10-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, and protection devices with emphasis on reliability, precision, and application-specific optimization.
The SMBJ series was engineered for high-energy transient suppression in space-constrained surface-mount applications, targeting automotive, industrial, and telecom infrastructure where robustness and repeatability under surge stress are mandatory.
FAQ
What is the maximum clamping voltage of SMBJ10-E3/5B under surge conditions?
The SMBJ10-E3/5B has a maximum clamping voltage (VC) of 17.0 V when subjected to its rated peak pulse current of 35.3 A using the 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during transient events - critical for ensuring compatibility with 20 V-rated downstream components.
Is SMBJ10-E3/5B suitable for automotive applications requiring AEC-Q101 qualification?
No, SMBJ10-E3/5B is a commercial-grade part with RoHS compliance (E3 suffix) but not AEC-Q101 qualified. For automotive use, specify SMBJ10HE3_B/I or SMBJ10HM3_B/I - these variants include the HE3/HM3 suffix and are explicitly tested to AEC-Q101 requirements, including temperature cycling, humidity testing, and surge endurance validation.
How does the SMBJ10-E3/5B differ from SMBJ10CA-E3/5B?
SMBJ10-E3/5B is unidirectional with cathode band marking and 5.0 µA max reverse leakage at 10 V, while SMBJ10CA-E3/5B is bidirectional (no polarity marking), exhibits symmetric breakdown in both directions, and allows up to 10 µA leakage at VWM. The clamping voltage remains identical (17.0 V), but SMBJ10CA-E3/5B is intended for AC or polarity-ambiguous signal lines like RS-485 or CAN.
What is the thermal resistance of SMBJ10-E3/5B from junction to ambient?
The SMBJ10-E3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on the minimum recommended copper pad layout (0.2" × 0.2" per terminal). This value assumes natural convection cooling and is essential for calculating steady-state junction temperature rise under continuous power dissipation - though the device is primarily rated for transient, not continuous, power handling.
Can SMBJ10-E3/5B be used in place of SMAJ10A?
No - SMBJ10-E3/5B and SMAJ10A differ in package (SMB vs. SMA), power rating (600 W vs. 400 W), and clamping performance (17.0 V vs. 19.0 V at rated IPPM). Substituting SMBJ10-E3/5B for SMAJ10A may improve surge margin but requires PCB land pattern revision due to larger SMB footprint (4.57 mm × 3.94 mm vs. 4.06 mm × 2.92 mm) and altered thermal pad layout.
SMBJ10-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 18.8V
- Current - Peak Pulse (10/1000µs):
- 31.9A
- Power - Peak Pulse:
- 600W
- 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)
SMBJ10-E3/5B FAQ
1.How can I place an order for SMBJ10-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ10-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 SMBJ10-E3/5B reliable?
The price and inventory of SMBJ10-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 SMBJ10-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ10-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ10-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ10-E3/5B?
SMBJ10-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ10-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 SMBJ10-E3/5B?
For technical support, including SMBJ10-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ10-E3/5B requirements.
6.How does Aetrix verify that SMBJ10-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ10-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 SMBJ10-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ10-E3/5B?
All SMBJ10-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ10-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 SMBJ10-E3/5B part is unused and in its original packaging.
Return procedure for SMBJ10-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ10-E3/5B Tags

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