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Vishay General Semiconductor - Diodes Division SMBJ10HE3/5B
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- Part No.:
- SMBJ10HE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ10HE3/5B.pdf
- Description:
- TVS DIODE 10VWM 18.8VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,261
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Product details
Overview
SMBJ10HE3/5B from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping fast-rising ESD and surge transients on power and signal lines. It features 10 V stand-off voltage (VWM), 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 in automotive-grade protection circuits for engine control units and infotainment power rails.
For engineers reviewing the SMBJ10HE3/5B datasheet, SMBJ10HE3/5B pinout, SMBJ10HE3/5B application, or SMBJ10HE3/5B equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), junction temperature range (–55 to +150 °C), and real-world design implications for surge immunity validation in 12 V automotive subsystems.
Technical Context
This TVS operates as a unidirectional avalanche clamp: reverse-biased during normal operation (blocking up to 10 V), then rapidly avalanches when transient voltage exceeds breakdown (VBR min = 11.1 V, max = 12.3 V at 1 mA). Its glass-passivated junction ensures stable leakage (<5.0 µA at VWM) and repeatable clamping performance across temperature.
Designed for automated SMT assembly, it meets JESD201 Class 2 whisker resistance and MSL Level 1 (260 °C peak reflow). The AEC-Q101 qualification confirms suitability for automotive under-hood and cabin electronics where reliability under thermal cycling and mechanical shock is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC bias margin for 12 V supply rail protection. |
| VBR (min/max) | 11.1 V / 12.3 V at 1 mA - Tight breakdown window ensures predictable turn-on timing and minimal overvoltage exposure during transients. |
| VC @ IPPM | 17.0 V at 35.3 A - Clamped voltage seen by protected IC/MOSFET during worst-case 600 W surge; enables downstream component survival at ≤20 V rating. |
| PPPM | 600 W (10/1000 µs) - Peak energy-handling capability for lightning-induced surges and load-dump events per ISO 7637-2 Pulse 5a. |
| TJ max. | +150 °C - Enables operation in high-temperature automotive environments (e.g., near engine ECUs) without derating below rated power. |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient on standard 0.2" × 0.2" copper pads; informs heatsinking requirements for repetitive surge duty. |
| AEC-Q101 | Qualified - Validated for automotive use including temperature cycling, humidity bias, and mechanical shock per AEC specification. |
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 band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to ground or lower-potential node; establishes reference for unidirectional clamping action. |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., 12 V rail); avalanche conduction occurs here during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Supports robust protection against ISO 7637-2 Pulse 5a load-dump transients in 12 V automotive systems without external series impedance. |
| AEC-Q101 qualified | Validated for automotive under-hood applications including temperature cycling (–40 to +125 °C), mechanical shock, and humidity bias stress. |
| Glass passivated junction | Ensures stable VBR and low leakage (<5 µA at 10 V) over lifetime and temperature, critical for long-term reliability in sealed modules. |
| MSL Level 1 (260 °C peak) | Enables standard lead-free reflow without moisture-related popcorning, eliminating pre-bake requirements in high-volume SMT lines. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast transients (e.g., ESD), reducing risk of latch-up or gate oxide damage in protected MOSFETs/ICs. |
Applications
| Automotive Engine Control Unit (ECU) Power Input | Industrial PLC Digital I/O Protection |
|---|---|
|
Use Scenario: Protects 12 V input rail of engine control units against load-dump surges (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed upstream of DC/DC converter input to limit transient voltage to ≤17 V. Use Value: Prevents overvoltage failure of buck controller ICs rated for 20 V absolute maximum, enabling compliance with OEM surge immunity requirements. |
Use Scenario: Shields 24 V digital input channels of programmable logic controllers from inductive switching transients generated by solenoid valves. IC Role / Device Role / Timing Role: Standoff device mounted directly at connector entry point to shunt surge energy before reaching optocoupler input stage. Use Value: Maintains signal integrity by clamping transients within 1 ns response time, avoiding false triggering or latch-up in isolated input circuitry. |
| Telecom Base Station DC Power Distribution | Consumer Appliance Motor Drive Board |
|
Use Scenario: Safeguards 48 V backplane power distribution in outdoor telecom cabinets exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Secondary-level TVS used in conjunction with GDT primary protection to refine clamping level to <50 V. Use Value: Limits let-through voltage to protect PMICs and FPGAs with 55 V absolute maximum ratings, extending field life in harsh environments. |
Use Scenario: Guards H-bridge gate driver supply lines in washing machine motor control boards against commutation spikes. IC Role / Device Role / Timing Role: Localized clamp on 15 V gate drive rail to suppress voltage reversal during MOSFET turn-off. Use Value: Reduces need for oversized gate resistors by limiting dv/dt-induced shoot-through risk, improving efficiency and thermal margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10A-E3/5B | No AEC-Q101 qualification; commercial grade only; identical VWM, VC, and PPPM specs. | Limited to non-automotive industrial or consumer applications where automotive reliability testing is not required. | Select when cost sensitivity outweighs automotive qualification needs and thermal cycling beyond –40 to +85 °C is not expected. |
| SAC10 | Same VWM (10 V) but lower PPPM (400 W); TO-220AC package; higher RθJA (~50 °C/W). | Requires PCB heatsinking for repetitive surges; unsuitable for space-constrained SMT layouts. | Choose only if through-hole mounting is mandated and 400 W surge handling suffices for system-level threat model. |
Compared with SMBJ10A-E3/5B and SAC10, SMBJ10HE3/5B uniquely combines AEC-Q101 qualification, SMB footprint, and full 600 W surge capability-making it the only option for compact, high-reliability 12 V automotive power rail protection without layout or thermal redesign.
Availability
SMBJ10HE3/5B is available at Aetrix Electronics and suitable for automotive ECU power inputs, industrial PLC I/O modules, telecom 48 V distribution, and appliance motor drive boards requiring stable component supply with guaranteed AEC-Q101 compliance and traceable sourcing.
Supply support for SMBJ10HE3/5B 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 MOSFETs for high-reliability industrial and automotive applications.
The SMBJ series was engineered specifically for surface-mount transient suppression in automotive and industrial environments, emphasizing AEC-Q101 qualification, tight parametric tolerances, and robust surge endurance in compact DO-214AA packaging.
FAQ
What is the clamping voltage of SMBJ10HE3/5B at its rated peak pulse current?
The SMBJ10HE3/5B has a maximum clamping voltage (VC) of 17.0 V at 35.3 A peak pulse current (IPPM), measured with a 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during a 600 W transient event, ensuring compatibility with downstream components rated for ≤20 V absolute maximum.
Is SMBJ10HE3/5B qualified for automotive applications?
Yes, SMBJ10HE3/5B is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3". This certification covers temperature cycling, mechanical shock, and humidity bias testing, making SMBJ10HE3/5B suitable for under-hood and cabin electronics in passenger vehicles and commercial vehicles.
What is the standoff voltage rating for SMBJ10HE3/5B?
The standoff voltage (VWM) of SMBJ10HE3/5B is 10 V - the maximum DC or continuous reverse voltage the device blocks before entering avalanche breakdown. This rating allows direct placement on nominal 12 V automotive power rails while maintaining low leakage (<5.0 µA) during normal operation.
Does SMBJ10HE3/5B have a bidirectional variant?
No - SMBJ10HE3/5B is unidirectional only. Bidirectional variants use the "CA" suffix (e.g., SMBJ10CA), which provide symmetrical clamping in both polarities. The "HE3" suffix denotes AEC-Q101 qualification and unidirectional polarity, with cathode marked by a band on the SMB package.
What package type does SMBJ10HE3/5B use, and what are its key mechanical features?
SMBJ10HE3/5B uses the SMB (DO-214AA) surface-mount package: low-profile, RoHS-compliant, with matte tin-plated leads solderable per J-STD-002. Its dimensions are 4.57 mm × 3.94 mm × 2.20 mm, and it meets UL 94 V-0 flammability rating with MSL Level 1 moisture sensitivity.
SMBJ10HE3/5B 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ10HE3/5B FAQ
1.How can I place an order for SMBJ10HE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ10HE3/5B 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 SMBJ10HE3/5B reliable?
The price and inventory of SMBJ10HE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ10HE3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ10HE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ10HE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ10HE3/5B?
SMBJ10HE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ10HE3/5B 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 SMBJ10HE3/5B?
For technical support, including SMBJ10HE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ10HE3/5B requirements.
6.How does Aetrix verify that SMBJ10HE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ10HE3/5B 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 SMBJ10HE3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ10HE3/5B?
All SMBJ10HE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ10HE3/5B, 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 SMBJ10HE3/5B part is unused and in its original packaging.
Return procedure for SMBJ10HE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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