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Vishay General Semiconductor - Diodes Division SMBJ5.0HE3/5B
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- Part No.:
- SMBJ5.0HE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ5.0HE3/5B.pdf
- Description:
- TVS DIODE 5VWM 9.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,975
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Product details
Overview
SMBJ5.0HE3/5B from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping fast-rising voltage transients on power and signal lines. It features a 5.0 V stand-off voltage (VWM), 6.4–7.07 V breakdown voltage (VBR) at 10 mA, 600 W peak pulse power (10/1000 µs), and clamps to ≤9.2 V at 65.2 A peak surge current - deployed in automotive ECUs, industrial sensor interfaces, and DC power rail protection.
For engineers reviewing the SMBJ5.0HE3/5B datasheet, SMBJ5.0HE3/5B pinout, SMBJ5.0HE3/5B application, or SMBJ5.0HE3/5B equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 150 °C max junction temperature, low incremental surge resistance, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a voltage-clamping protection device in series with sensitive downstream circuitry. Its glass-passivated junction enables fast response (<1 ps), low leakage (<800 µA at VWM), and stable clamping under repetitive 10/1000 µs surges at 0.01% duty cycle.
The SMBJ5.0HE3/5B is rated for 100 A non-repetitive forward surge (8.3 ms half-sine), exhibits +0.057 %/°C VBR temperature coefficient, and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak - confirming suitability for high-reliability automotive and industrial PCB assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - maximum continuous reverse operating voltage before clamping begins; sets minimum system operating margin. |
| VBR (min/max) | 6.40 V / 7.07 V at 10 mA - defines guaranteed breakdown threshold range; ensures reliable triggering above VWM. |
| IPPM | 65.2 A - peak surge current at 10/1000 µs waveform; determines clamping voltage under standardized transient stress. |
| VC | ≤9.2 V at IPPM - maximum clamped voltage seen by protected IC/MOSFET; critical for ensuring downstream device survivability. |
| PPPM | 600 W - peak pulse power handling capability; validates robustness against lightning-induced or inductive-switching transients. |
| TJ max | +150 °C - maximum junction temperature; supports operation in under-hood automotive and high-ambient industrial environments. |
| RθJA | 100 °C/W - thermal resistance junction-to-ambient on standard 0.2" × 0.2" pads; informs derating requirements above 25 °C ambient. |
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; anode and cathode terminals are axially oriented along the body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts surge current to ground when VWM exceeded - must route with low-inductance path to chassis/system ground. |
| Anode | Reference/return node | Typically tied to system ground or lower-potential rail; completes clamping path - requires minimal trace inductance to avoid voltage overshoot. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, ADAS sensors, and infotainment power rails - supports PPAP and long-term reliability requirements. |
| 600 W peak pulse power (10/1000 µs) | Withstands high-energy transients from load dump, ISO 7637-2 Pulse 5a, or IEC 61000-4-5 surge events without degradation. |
| Glass passivated junction | Ensures stable VBR over time and temperature, low leakage (<800 µA), and immunity to humidity-induced parameter drift. |
| MSL Level 1, 260 °C peak reflow | Enables single-pass lead-free reflow assembly without moisture-related popcorning or delamination - no baking required pre-assembly. |
| Low clamping ratio (VC/VBR ≈ 1.35) | Minimizes overvoltage stress on protected MOSFETs or ICs during clamping - improves system-level ESD and surge immunity margin. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 5 V supply lines in engine control units (ECUs) and body control modules (BCMs) against load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between input fuse and LDO regulator input to limit transient overvoltage before it reaches sensitive analog/digital ICs. Use Value: Clamps 600 W surges to ≤9.2 V, preserving 5 V rail integrity and preventing latch-up or gate oxide damage in downstream regulators and microcontrollers. |
Use Scenario: Safeguarding RS-485/UART signal lines in factory automation PLC I/O modules exposed to motor drive noise and relay switching transients. IC Role / Device Role / Timing Role: TVS diode connected between differential pair and ground to shunt common-mode surges while maintaining signal integrity up to 10 Mbps. Use Value: Sub-10 ns response and low capacitance (<100 pF at 0 V) prevent data corruption and ensure compliance with IEC 61000-4-4 EFT immunity requirements. |
| DC-DC Converter Input Protection | Consumer Device USB Port Protection |
|
Use Scenario: Shielding buck converter inputs in telecom power supplies from inductive kickback and hot-swap voltage spikes during board insertion. IC Role / Device Role / Timing Role: Placed upstream of input filter capacitor to absorb energy before it stresses MOSFETs or controller ICs during transient events. Use Value: 100 A IFSM rating handles 8.3 ms half-sine surges without failure; 150 °C TJ max allows operation in enclosed, thermally constrained enclosures. |
Use Scenario: Adding secondary-level surge protection on 5 V USB VBUS lines in smart home hubs and portable medical devices. IC Role / Device Role / Timing Role: Unidirectional TVS installed between USB connector and port controller IC to suppress contact discharge and cable discharge events. Use Value: AEC-Q101 qualification and RoHS-compliance support global regulatory acceptance; low leakage (<800 µA) avoids battery drain in always-on applications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ5.0A-E3/5B | Commercial-grade version; not AEC-Q101 qualified; same VWM, VBR, PPPM, and package. | Lacks automotive qualification - suitable for consumer, computing, and non-safety-critical industrial use only. | Select when AEC-Q101 is not required and cost optimization is prioritized over automotive reliability validation. |
| SAC5.0 | Same 5.0 V VWM and 600 W rating but in smaller SOD-123FL package; higher RθJA (150 °C/W); lower IPPM (52.5 A). | Lower surge current handling and reduced thermal margin - limited to low-energy transients or space-constrained designs. | Choose only if PCB area is severely constrained and transient threat level is below ISO 7637-2 Level III; verify thermal derating. |
Compared with SMBJ5.0A-E3/5B, the SMBJ5.0HE3/5B adds AEC-Q101 qualification and automotive traceability without sacrificing electrical specs; versus SAC5.0, it delivers higher surge robustness, better thermal performance, and proven reliability in harsh environments - making SMBJ5.0HE3/5B the preferred choice for mission-critical automotive and industrial deployments.
Availability
SMBJ5.0HE3/5B is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and DC-DC converter input protection requiring stable component supply across extended production lifecycles.
Supply support for SMBJ5.0HE3/5B 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, precision, and automotive-grade validation.
The SMBJ series is engineered for high-energy transient suppression in demanding environments - targeting automotive power systems, industrial controls, and telecom infrastructure where robustness and qualification compliance are mandatory.
FAQ
What is the clamping voltage of SMBJ5.0HE3/5B at its rated peak pulse current?
The SMBJ5.0HE3/5B clamps to a maximum of 9.2 V at its specified peak pulse current of 65.2 A (10/1000 µs waveform). This value is measured under standardized test conditions and represents the upper voltage limit imposed on protected circuitry during transient events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is SMBJ5.0HE3/5B suitable for automotive applications?
Yes, SMBJ5.0HE3/5B is AEC-Q101 qualified and designated for automotive use, with full traceability, extended temperature operation (−55 °C to +150 °C), and validation against mechanical stress, thermal cycling, and humidity testing. It is commonly deployed in engine control units, ADAS camera modules, and body electronics where reliability under harsh conditions is essential.
How does the SMBJ5.0HE3/5B differ from the SMBJ5.0A-E3/5B?
The SMBJ5.0HE3/5B differs from SMBJ5.0A-E3/5B solely in qualification status: SMBJ5.0HE3/5B is AEC-Q101 qualified and intended for automotive applications, while SMBJ5.0A-E3/5B is commercial-grade. All electrical parameters - VWM, VBR, PPPM, VC, and package - are identical between the two variants.
What is the maximum reverse leakage current of SMBJ5.0HE3/5B at its stand-off voltage?
The SMBJ5.0HE3/5B exhibits a maximum reverse leakage current (ID) of 800 µA at its 5.0 V stand-off voltage (VWM) and 25 °C ambient temperature. This low leakage ensures minimal power loss in standby mode and prevents unintended loading of low-power sensor or battery-backed circuits.
Does SMBJ5.0HE3/5B require special PCB layout considerations?
Yes - for optimal transient suppression, SMBJ5.0HE3/5B should be mounted with short, wide traces directly between the protected line and ground plane, using minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. Excessive trace inductance increases clamping voltage and reduces effectiveness against fast transients like ESD or EFT.
SMBJ5.0HE3/5B 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):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.6V
- Current - Peak Pulse (10/1000µs):
- 62.5A
- 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)
SMBJ5.0HE3/5B FAQ
1.How can I place an order for SMBJ5.0HE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ5.0HE3/5B 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 SMBJ5.0HE3/5B reliable?
The price and inventory of SMBJ5.0HE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ5.0HE3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ5.0HE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ5.0HE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ5.0HE3/5B?
SMBJ5.0HE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ5.0HE3/5B 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 SMBJ5.0HE3/5B?
For technical support, including SMBJ5.0HE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ5.0HE3/5B requirements.
6.How does Aetrix verify that SMBJ5.0HE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ5.0HE3/5B 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 SMBJ5.0HE3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ5.0HE3/5B?
All SMBJ5.0HE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ5.0HE3/5B, 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 SMBJ5.0HE3/5B part is unused and in its original packaging.
Return procedure for SMBJ5.0HE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ5.0HE3/5B Tags
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