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Vishay General Semiconductor - Diodes Division SMBJ5.0AHE3_A/I
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- Part No.:
- SMBJ5.0AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ5.0AHE3_A/I.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,200
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Product details
Overview
SMBJ5.0AHE3_A/I from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for primary overvoltage protection of DC power rails 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 transients to ≤9.2 V at 65.2 A, making it suitable for safeguarding USB ports, microcontroller I/O pins, and automotive sensor interfaces.
For engineers reviewing the SMBJ5.0AHE3_A/I datasheet, SMBJ5.0AHE3_A/I pinout, SMBJ5.0AHE3_A/I application, or SMBJ5.0AHE3_A/I equivalent, key selection criteria include its AEC-Q101 qualification, low clamping voltage under surge, unidirectional polarity with cathode band marking, and SMB (DO-214AA) surface-mount package compatibility with automated assembly.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VWM = 5.0 V, it avalanches at VBR (min 6.4 V), limiting transient energy by diverting surge current to ground. Its 9.2 V maximum clamping voltage (VC) at 65.2 A IPPM ensures downstream ICs remain below absolute maximum ratings during ESD or inductive switching events.
Thermally, it sustains 150 °C junction temperature with RθJA = 100 °C/W and RθJL = 20 °C/W, enabling reliable operation on standard PCB copper pads (0.2" × 0.2"). The device meets MSL Level 1 per J-STD-020 and is qualified to AEC-Q101 for automotive under-hood and infotainment applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - Maximum continuous reverse operating voltage before conduction begins; sets protection threshold for 5 V logic rails. |
| VBR (min/max) | 6.40 V / 7.07 V at 10 mA - Confirmed breakdown range ensures reliable triggering without premature leakage at nominal bias. |
| VC @ IPPM | ≤9.2 V at 65.2 A - Clamping voltage guarantees protected circuitry stays within safe operating area during 600 W transient events. |
| PPPM | 600 W (10/1000 µs waveform) - Peak surge handling capacity sufficient for ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 3 threats. |
| IFSM | 100 A (8.3 ms half-sine) - Forward surge rating supports robustness against accidental reverse-bias faults or high-current transients. |
| TJ max | +150 °C - Enables deployment in under-hood automotive environments and industrial enclosures without derating. |
| Package | SMB (DO-214AA) - Standardized 2-pin SMD footprint with 0.220" × 0.155" body; compatible with reflow soldering and J-STD-002-compliant tin plating. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional configuration with cathode indicated by a band on the case. Matte tin-plated leads meet J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/Line side | Connected to protected line (e.g., 5 V rail or signal trace); carries surge current into the device during clamping. |
| Cathode | Ground reference | Connected to system ground or low-impedance return path; provides low-resistance discharge path for transient energy. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables single-device protection against severe automotive load-dump and industrial switching surges without external series impedance. |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock-required for engine control, ADAS, and infotainment modules. |
| Low clamping voltage (≤9.2 V) | Minimizes stress on 5 V-tolerant ICs (e.g., STM32 GPIOs, CAN transceivers) during 65.2 A transients, reducing risk of latch-up or oxide damage. |
| MSL Level 1 (260 °C peak) | Eliminates pre-bake requirements prior to reflow assembly, streamlining high-volume manufacturing and reducing process cost. |
| Glass passivated junction | Provides stable VBR tolerance and long-term leakage performance across -55 °C to +150 °C operating range. |
Applications
| Automotive Power Rail Protection | USB 2.0 Data Line Protection |
|---|---|
|
Use Scenario: Protecting 5 V supply lines in vehicle body control modules from ISO 7637-2 Pulse 1 (inductive switch-off) and Pulse 2a (battery disconnect). IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed directly across input capacitor, clamping surges within nanoseconds. Use Value: Maintains VIN ≤9.2 V during 65.2 A transients, preventing brownout or reset of MCU and CAN controller ICs. |
Use Scenario: Safeguarding D+ and D− lines of USB 2.0 ports in automotive head units against ESD (IEC 61000-4-2 ±15 kV contact) and cable discharge events. IC Role / Device Role / Timing Role: Bidirectional-capable protection (via paired unidirectional devices) with low capacitance (<100 pF) to preserve signal integrity. Use Value: Limits voltage excursion to ≤9.2 V while adding <1 pF parasitic capacitance per line-no data rate degradation at 480 Mbps. |
| Industrial Sensor Interface Protection | Microcontroller I/O Pin Protection |
|
Use Scenario: Shielding analog outputs (e.g., 4–20 mA transmitter VOUT) and digital sensor lines (I²C, SPI) in factory automation PLCs from lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Primary-level TVS placed at connector entry point, upstream of filtering and isolation stages. Use Value: Absorbs up to 600 W of surge energy without failure, preserving accuracy of 16-bit ADC references and isolator timing margins. |
Use Scenario: Guarding GPIO, reset, and boot configuration pins of ARM Cortex-M microcontrollers in medical handheld devices against user-handling ESD. IC Role / Device Role / Timing Role: Point-of-use clamp mounted within 2 mm of IC pad, minimizing trace inductance for sub-nanosecond response. Use Value: Clamps 8 kV HBM ESD pulses to <9.2 V in <1 ns, preventing gate oxide rupture and firmware corruption in flash memory peripherals. |
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-E3/52 | Same electrical specs and SMB package; RoHS-compliant commercial grade (non-AEC-Q101 qualified). | Lacks automotive qualification; not approved for under-hood or safety-critical ECUs. | Select when cost-sensitive industrial or consumer designs do not require AEC-Q101 validation. |
| SMCJ5.0AHE3_A/I | Same VWM/VBR/VC, but SMC (DO-214AB) package with 1.5 kW PPPM rating and higher thermal mass. | Better suited for high-energy transients (e.g., 10/1000 µs >100 A) where PCB space allows larger footprint. | Choose when surge current exceeds 65.2 A or ambient temperatures exceed 105 °C with limited heatsinking. |
Compared with SMBJ5.0AHE3_A/I, the SMBJ5.0A-E3/52 offers identical protection performance at lower cost but lacks automotive qualification, while the SMCJ5.0AHE3_A/I delivers higher surge capacity in a larger package-enabling design flexibility for varying energy and space constraints.
Availability
SMBJ5.0AHE3_A/I is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and USB peripheral protection requiring stable component supply and AEC-Q101 compliance.
Supply support for SMBJ5.0AHE3_A/I 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, efficiency, and application-specific optimization.
The SMBJ series is engineered for robust transient suppression in harsh environments-including automotive, industrial, and telecom-delivering precise clamping, high surge capability, and qualification-grade consistency.
FAQ
What is the maximum clamping voltage of SMBJ5.0AHE3_A/I at its rated peak pulse current?
The SMBJ5.0AHE3_A/I has a maximum clamping voltage (VC) of 9.2 V when subjected to its peak pulse current (IPPM) of 65.2 A under the standardized 10/1000 µs waveform. This value is measured and guaranteed per Vishay's datasheet (Document Number: 88392, Rev. 09-Jan-2024), ensuring predictable overvoltage limiting for protected circuits. The SMBJ5.0AHE3_A/I maintains this clamping performance across its full operating temperature range.
Is SMBJ5.0AHE3_A/I qualified for automotive applications?
Yes, SMBJ5.0AHE3_A/I is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3" and documentation in the datasheet (page 3, Note 1). This qualification covers stress tests including temperature cycling, high-temperature operating life, and mechanical shock-making SMBJ5.0AHE3_A/I suitable for automotive powertrain, chassis, and infotainment systems where reliability under extreme conditions is mandatory.
What does the "_A/I" suffix in SMBJ5.0AHE3_A/I indicate?
The "_A/I" suffix in SMBJ5.0AHE3_A/I specifies packaging and reel configuration: "A" denotes the revision code (per Vishay's naming convention), and "I" indicates 13-inch diameter plastic tape-and-reel delivery with 3200 units per reel. This matches the ordering information table on page 3 of the datasheet (Document Number: 88392), confirming SMBJ5.0AHE3_A/I is supplied in high-volume, automated-assembly-ready format.
How does the SMBJ5.0AHE3_A/I differ from bidirectional variants like SMBJ5.0CA?
SMBJ5.0AHE3_A/I is unidirectional, with polarity marked by a cathode band and intended for DC rail protection where reverse conduction must be blocked. In contrast, SMBJ5.0CA is bidirectional-symmetrical in both directions-with no polarity marking and used for AC or differential signal lines. Electrical differences include higher ID leakage limits for low-VWM bidirectional types (Note 3), and SMBJ5.0CA has a VBR max of 7.25 V (Note 5), whereas SMBJ5.0AHE3_A/I has VBR min/max of 6.40–7.07 V.
What is the thermal resistance from junction to ambient for SMBJ5.0AHE3_A/I?
The SMBJ5.0AHE3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on the minimum recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in the Thermal Characteristics table (page 3, Document Number: 88392). This value enables accurate thermal modeling for PCB layout and ambient temperature derating-critical for sustained operation near its 150 °C TJ maximum.
SMBJ5.0AHE3_A/I 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:
- 9.2V
- Current - Peak Pulse (10/1000µs):
- 65.2A
- 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)
SMBJ5.0AHE3_A/I FAQ
1.How can I place an order for SMBJ5.0AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ5.0AHE3_A/I 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 SMBJ5.0AHE3_A/I reliable?
The price and inventory of SMBJ5.0AHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ5.0AHE3_A/I is usually 5 days.
3.What payment methods are accepted for SMBJ5.0AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ5.0AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ5.0AHE3_A/I?
SMBJ5.0AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ5.0AHE3_A/I 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 SMBJ5.0AHE3_A/I?
For technical support, including SMBJ5.0AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ5.0AHE3_A/I requirements.
6.How does Aetrix verify that SMBJ5.0AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SMBJ5.0AHE3_A/I 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 SMBJ5.0AHE3_A/I meets industry standards.
7.What is the process for return or replacement of SMBJ5.0AHE3_A/I?
All SMBJ5.0AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ5.0AHE3_A/I, 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 SMBJ5.0AHE3_A/I part is unused and in its original packaging.
Return procedure for SMBJ5.0AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ5.0AHE3_A/I Tags
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