Vishay Semiconductor Diodes Division
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SMBJ28-E3/52
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SMBJ28-E3/52

Product Overview

The SMBJ28-E3/52 belongs to the category of transient voltage suppressor diodes. These diodes are commonly used to protect sensitive electronic components from voltage spikes and transients. The SMBJ28-E3/52 is characterized by its high surge capability, low clamping voltage, and fast response time. It is typically packaged in a DO-214AA (SMB) package and is available in tape and reel packaging with a quantity of 3000 units per reel.

Specifications

  • Peak Power Dissipation: 600W
  • Breakdown Voltage: 28V
  • Clamping Voltage: 45.7V
  • Operating Temperature Range: -55°C to +150°C
  • Package Type: DO-214AA (SMB)

Pin Configuration

The SMBJ28-E3/52 has a standard SMB package with two pins. Pin 1 is the anode and pin 2 is the cathode.

Functional Features

  • Transient Voltage Suppression: Effectively suppresses voltage transients to protect downstream components.
  • Fast Response Time: Rapidly responds to transient events, minimizing the risk of damage to sensitive electronics.
  • High Surge Capability: Capable of withstanding high surge currents, making it suitable for demanding applications.

Advantages and Disadvantages

Advantages

  • Effective protection against voltage transients
  • Fast response time
  • High surge capability

Disadvantages

  • Clamping voltage may be relatively high for some applications
  • Limited breakdown voltage compared to other diode options

Working Principles

The SMBJ28-E3/52 operates based on the principle of avalanche breakdown. When a transient voltage spike occurs, the diode rapidly conducts, diverting the excess current away from the protected circuit. This action effectively clamps the voltage to a safe level, protecting the connected components.

Application Field Plans

The SMBJ28-E3/52 is commonly used in various electronic systems and equipment, including: - Power supplies - Communication systems - Industrial control systems - Automotive electronics - Consumer electronics

Alternative Models

For applications requiring different specifications or form factors, alternative models to consider include: - P6SMB28CA: Similar specifications with a different package type (DO-214AA) - SMBJ28A: Higher breakdown voltage with similar characteristics - 1.5SMC28CA: Higher power dissipation capability with similar breakdown voltage

In conclusion, the SMBJ28-E3/52 transient voltage suppressor diode offers effective protection against voltage transients, making it a crucial component in various electronic systems and equipment. Its fast response time and high surge capability make it well-suited for demanding applications, although users should consider the clamping voltage and breakdown voltage when selecting the appropriate diode for their specific requirements.

Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van SMBJ28-E3/52 in technische oplossingen

  1. What is the SMBJ28-E3/52?

    • The SMBJ28-E3/52 is a surface mount transient voltage suppressor diode designed to protect sensitive electronic components from voltage spikes and transients.

  2. What is the maximum peak pulse power of the SMBJ28-E3/52?

    • The maximum peak pulse power of the SMBJ28-E3/52 is 600 watts.

  3. What is the breakdown voltage of the SMBJ28-E3/52?

    • The breakdown voltage of the SMBJ28-E3/52 is 28 volts.

  4. What are the typical applications for the SMBJ28-E3/52?

    • The SMBJ28-E3/52 is commonly used in applications such as telecommunications equipment, industrial control systems, and automotive electronics to protect against voltage transients.

  5. What is the operating temperature range of the SMBJ28-E3/52?

    • The operating temperature range of the SMBJ28-E3/52 is -55°C to 150°C.

  6. What is the response time of the SMBJ28-E3/52?

    • The response time of the SMBJ28-E3/52 is very fast, typically responding within nanoseconds to clamp voltage transients.

  7. Is the SMBJ28-E3/52 RoHS compliant?

    • Yes, the SMBJ28-E3/52 is RoHS compliant, meaning it meets the Restriction of Hazardous Substances directive.

  8. What is the package type of the SMBJ28-E3/52?

    • The SMBJ28-E3/52 comes in a DO-214AA (SMB) package.

  9. Can the SMBJ28-E3/52 be used for overvoltage protection in power supply circuits?

    • Yes, the SMBJ28-E3/52 is suitable for providing overvoltage protection in power supply circuits to safeguard sensitive components.

  10. What are the key features of the SMBJ28-E3/52?

    • The key features of the SMBJ28-E3/52 include low clamping voltage, fast response time, and high surge capability, making it an effective solution for transient voltage suppression.