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Vishay General Semiconductor - Diodes Division SMBJ10A-E3/5B
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- Part No.:
- SMBJ10A-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ10A-E3/5B.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,814
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Product details
Overview
SMBJ10A-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 DC power rails and signal lines. 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 (10/1000 µs waveform), commonly deployed to safeguard MOSFET gate drivers and sensor interfaces in industrial motor controls.
For engineers reviewing the SMBJ10A-E3/5B datasheet, SMBJ10A-E3/5B pinout, SMBJ10A-E3/5B application, or SMBJ10A-E3/5B equivalent, this page delivers verified electrical parameters, thermal derating behavior, clamping performance under surge conditions, RoHS-compliant packaging details, and validated alternative parts for ESD and lightning-induced transient suppression in 24 V DC systems.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, leveraging glass-passivated junction technology to achieve sub-nanosecond response time and low incremental surge resistance. Its 100 °C/W junction-to-ambient thermal resistance (RθJA) and 20 °C/W junction-to-lead (RθJL) define its power dissipation limits under pulsed and steady-state conditions.
The device complies with ANSI/IEEE C62.35 standards for transient suppressors and meets MSL Level 1 per J-STD-020 with 260 °C lead-free reflow compatibility. It is rated for -55 °C to +150 °C operating junction temperature and supports repetitive surge duty cycles up to 0.01 %.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 10 V - Maximum continuous reverse voltage before significant leakage; defines safe operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 11.1–12.3 V at 1 mA - Confirmed avalanche onset range; ensures reliable triggering during transients exceeding VWM. |
| VC (Clamping Voltage) | 17.0 V at IPPM = 35.3 A - Peak voltage seen by protected circuit during 10/1000 µs surge; critical for IC-level voltage tolerance. |
| PPPM (Peak Pulse Power) | 600 W - Sustained energy absorption capability under standardized 10/1000 µs waveform; enables single-event lightning strike mitigation. |
| ID (Reverse Leakage) | 5.0 µA max at VWM - Low standby current preserves system efficiency and avoids false triggering in low-power sensor nodes. |
| TJ max | +150 °C - Maximum junction temperature rating; supports operation in enclosed industrial enclosures without active cooling. |
| Package | SMB (DO-214AA) - Surface-mount footprint with 5.59 mm × 4.06 mm outline; compatible with automated pick-and-place and reflow soldering. |
Pinout & Package
Package: SMB (DO-214AA), unidirectional configuration with cathode band marking on one end. Matte tin-plated leads meet J-STD-002 and JESD 22-B102 solderability requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; forms forward-biased path during positive transients on cathode side. |
| Cathode | Protected line input | Connected to the line being protected (e.g., 24 V rail); conducts avalanche current to anode when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables protection against IEC 61000-4-5 Level 4 surges (4 kV line-to-ground) without external series impedance. |
| 17.0 V clamping at 35.3 A | Keeps downstream 24 V logic ICs (e.g., microcontrollers, RS-485 transceivers) within absolute maximum ratings during surge events. |
| MSL Level 1, 260 °C peak reflow | Supports single-pass lead-free assembly without moisture-related popcorning or delamination risks. |
| Glass passivated junction | Provides stable VBR over lifetime and improved reliability vs. epoxy-passivated alternatives in humid or high-bias environments. |
| RoHS-compliant, halogen-free option available | Fulfills EU RoHS Directive 2011/65/EU and JEDEC JS709C material restrictions for green electronics manufacturing. |
Applications
| Industrial Motor Drive Protection | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: Suppresses inductive kickback from 24 V solenoid valves and relay coils in PLC output modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed across coil terminals to clamp flyback voltage spikes before they reach driver ICs. Use Value: Prevents premature failure of N-channel MOSFETs (e.g., STP16NF06L) by limiting drain-source voltage to ≤17.0 V during turn-off. |
Use Scenario: Shields LIN bus transceivers and microcontroller I/O pins from load dump and jump-start transients in vehicle body electronics. IC Role / Device Role / Timing Role: Standoff-clamp TVS on 12 V supply rail upstream of LDO regulators feeding BCM MCU. Use Value: Maintains regulated 5 V supply integrity by clamping 12 V rail to ≤17.0 V during ISO 7637-2 Pulse 5a (load dump) events. |
| Factory Automation Sensor Interface | Telecom Power Supply Input |
|
Use Scenario: Protects analog front-end amplifiers and ADC inputs of 4–20 mA current loop receivers from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-leakage (5.0 µA) TVS on signal line between field wiring and op-amp input stage. Use Value: Preserves measurement accuracy by avoiding DC offset shift caused by high ID in competing TVS devices. |
Use Scenario: Safeguards AC-DC adapter primary-side rectifier and controller ICs from surges entering via mains input. IC Role / Device Role / Timing Role: Secondary-side TVS on 48 V DC output rail to absorb reflected transients from downstream PoE switches. Use Value: Extends service life of DC-DC controllers (e.g., LM5007) by limiting output rail overshoot to 17.0 V during fast-rising transients. |
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-M3/5B | Halogen-free, RoHS-compliant variant with identical electrical specs and SMB package. | No functional difference; selected where halogen-free compliance is mandated by OEM environmental policy. | Direct drop-in replacement for SMBJ10A-E3/5B in halogen-free BOMs; same thermal and clamping performance. |
| SMBJ10CA-E3/5B | Bidirectional version with symmetric 11.1–12.3 V VBR in both polarities; 17.0 V VC remains unchanged. | Required for AC-coupled or floating signal lines (e.g., RS-485 differential pairs) where polarity reversal occurs. | Use only when bidirectional clamping is needed; not interchangeable with SMBJ10A-E3/5B in unidirectional DC rails. |
Compared with SMBJ10A-E3/5B, the M3/5B variant adds halogen-free compliance without altering surge handling, while the SMBJ10CA-E3/5B enables AC-capable protection at the cost of losing polarity-specific optimization for DC power rails.
Availability
SMBJ10A-E3/5B is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, factory automation sensor interfaces, and telecom power supply inputs requiring stable component supply and full traceability.
Supply support for SMBJ10A-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The SMBJ series is engineered for high-energy transient suppression in harsh environments, targeting industrial, automotive, and telecom systems where robustness against ESD, lightning, and inductive switching surges is mission-critical.
FAQ
What is the maximum clamping voltage of SMBJ10A-E3/5B under a 10/1000 µs surge?
The SMBJ10A-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 standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in Vishay's Document Number 88392, ensuring predictable voltage limiting during surge events. The SMBJ10A-E3/5B maintains this clamping performance across its specified operating temperature range.
Is SMBJ10A-E3/5B suitable for automotive applications?
SMBJ10A-E3/5B is RoHS-compliant and qualified to MSL Level 1, but it is not AEC-Q101 certified. For automotive-grade use, Vishay offers the SMBJ10AHE3_B variant (AEC-Q101 qualified). The SMBJ10A-E3/5B remains appropriate for non-safety-critical industrial or consumer applications where AEC-Q101 is not mandated. Always verify qualification status via the full ordering code before deployment in automotive systems. The SMBJ10A-E3/5B itself does not carry AEC-Q101 certification.
How does the SMBJ10A-E3/5B differ from the SMBJ10CA-E3/5B?
The SMBJ10A-E3/5B is unidirectional, with a marked cathode band and asymmetric conduction-blocking reverse current until breakdown, then clamping positive transients on the cathode side. The SMBJ10CA-E3/5B is bidirectional, offering symmetrical clamping in both directions with no polarity marking. Their VBR, VC, and PPPM are identical, but the SMBJ10CA-E3/5B is required for AC or floating signal lines. The SMBJ10A-E3/5B cannot substitute for the CA version in bidirectional applications.
What is the thermal resistance of SMBJ10A-E3/5B, and how does it affect layout?
The SMBJ10A-E3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead (RθJL) of 20 °C/W, measured on 0.2" × 0.2" copper pads. To maintain safe junction temperatures during repetitive surges, PCB layout must provide adequate copper area per Vishay's recommended pad dimensions (5.0 mm × 5.0 mm per terminal). Insufficient copper increases RθJA and risks thermal runaway. The SMBJ10A-E3/5B's thermal performance is directly tied to adherence to these mounting guidelines.
Does SMBJ10A-E3/5B meet UL recognition requirements?
Yes, SMBJ10A-E3/5B carries Underwriters Laboratories (UL) recognition under file number E136766 for both unidirectional and bidirectional TVS devices, complying with UL 497B for protectors. This certification covers safety aspects including flammability (UL 94 V-0 molding compound) and surge withstand capability. The UL listing applies specifically to the SMBJ10A-E3/5B construction and is documented in Vishay's official safety certifications. The SMBJ10A-E3/5B is approved for use in end equipment requiring UL-marked transient protection.
SMBJ10A-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):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 35.3A
- 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)
SMBJ10A-E3/5B FAQ
1.How can I place an order for SMBJ10A-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ10A-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 SMBJ10A-E3/5B reliable?
The price and inventory of SMBJ10A-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 SMBJ10A-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ10A-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ10A-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ10A-E3/5B?
SMBJ10A-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ10A-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 SMBJ10A-E3/5B?
For technical support, including SMBJ10A-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ10A-E3/5B requirements.
6.How does Aetrix verify that SMBJ10A-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ10A-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 SMBJ10A-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ10A-E3/5B?
All SMBJ10A-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ10A-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 SMBJ10A-E3/5B part is unused and in its original packaging.
Return procedure for SMBJ10A-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ10A-E3/5B Tags
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