Vishay Semiconductor Diodes Division
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SMBJ120-E3/52
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SMBJ120-E3/52

Product Overview

The SMBJ120-E3/52 belongs to the category of transient voltage suppressor diodes (TVS diodes) and is commonly used for surge protection in electronic circuits. These diodes are characterized by their ability to rapidly clamp transient overvoltage, thereby protecting sensitive components from damage. The SMBJ120-E3/52 is available in a compact package and is designed to provide efficient and reliable protection against voltage transients.

Basic Information

  • Category: Transient Voltage Suppressor Diode
  • Use: Surge protection in electronic circuits
  • Characteristics: Rapid clamping of transient overvoltage, compact package
  • Package: DO-214AA (SMB), SMD
  • Essence: Efficient and reliable protection against voltage transients
  • Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

  • Voltage - Reverse Standoff (Typ): 120V
  • Power (Watts): 600W
  • Polarity: Unidirectional
  • Breakdown Voltage: 133V
  • Clamping Voltage: 193V
  • Peak Pulse Current: 10A
  • Operating Temperature Range: -55°C to 150°C

Detailed Pin Configuration

The SMBJ120-E3/52 TVS diode has two pins, with the anode connected to the positive side and the cathode connected to the negative side of the circuit.

Functional Features

  • Rapid clamping of transient overvoltage
  • Low leakage current
  • High surge capability
  • Fast response time

Advantages and Disadvantages

Advantages

  • Effective surge protection
  • Compact size
  • Low leakage current

Disadvantages

  • Limited peak pulse current handling capacity
  • Sensitive to reverse bias conditions

Working Principles

The SMBJ120-E3/52 operates based on the principle of avalanche breakdown. When a transient overvoltage occurs, the diode rapidly conducts, diverting the excess current away from the protected circuit. This action effectively limits the voltage across the circuit, preventing damage to sensitive components.

Detailed Application Field Plans

The SMBJ120-E3/52 is widely used in various applications such as: - Power supplies - Telecommunication equipment - Automotive electronics - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models to the SMBJ120-E3/52 include: - P6KE120CA - 1.5SMC120CA - SA12CA

In conclusion, the SMBJ120-E3/52 transient voltage suppressor diode offers effective surge protection in a compact package, making it suitable for a wide range of electronic applications.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de SMBJ120-E3/52 en soluciones técnicas

  1. What is the SMBJ120-E3/52?

    • The SMBJ120-E3/52 is a surface mount transient voltage suppressor diode designed to protect sensitive electronics from voltage transients induced by lightning, inductive load switching, and electrostatic discharge.

  2. What is the maximum peak pulse power of the SMBJ120-E3/52?

    • The maximum peak pulse power of the SMBJ120-E3/52 is 600 watts for an 8/20µs waveform.

  3. What is the breakdown voltage of the SMBJ120-E3/52?

    • The SMBJ120-E3/52 has a breakdown voltage of 120 volts.

  4. What are the typical applications of the SMBJ120-E3/52?

    • Typical applications of the SMBJ120-E3/52 include protection of telecommunications equipment, industrial controls, consumer electronics, and automotive electronics.

  5. What is the operating temperature range of the SMBJ120-E3/52?

    • The SMBJ120-E3/52 has an operating temperature range of -55°C to +150°C.

  6. What is the response time of the SMBJ120-E3/52?

    • The response time of the SMBJ120-E3/52 is less than 1 picosecond.

  7. What is the package type of the SMBJ120-E3/52?

    • The SMBJ120-E3/52 comes in a DO-214AA (SMB) package.

  8. Does the SMBJ120-E3/52 meet any specific industry standards?

    • Yes, the SMBJ120-E3/52 meets the requirements of RoHS and is also halogen-free.

  9. Can the SMBJ120-E3/52 be used for overvoltage protection in power supply circuits?

    • Yes, the SMBJ120-E3/52 is suitable for overvoltage protection in power supply circuits.

  10. What are the key features of the SMBJ120-E3/52?

    • The key features of the SMBJ120-E3/52 include low clamping voltage, fast response time, and high surge capability.