Vishay Semiconductor Diodes Division
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SMB8J18CA-M3/5B
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SMB8J18CA-M3/5B

Product Overview

Category

The SMB8J18CA-M3/5B belongs to the category of semiconductor devices, specifically within the family of transient voltage suppressor (TVS) diodes.

Use

These diodes are primarily used for surge protection in electronic circuits, providing a safeguard against voltage spikes and transients.

Characteristics

  • Package: SMB (DO-214AA)
  • Essence: TVS diode for surge protection
  • Packaging/Quantity: Typically available in reels or tubes, with varying quantities depending on supplier and customer requirements.

Specifications

  • Voltage Rating: 18V
  • Power Dissipation: 600W
  • Breakdown Voltage: 20.2V
  • Clamping Voltage: 29.2V
  • Peak Pulse Current: 23.3A
  • Operating Temperature Range: -55°C to 150°C

Detailed Pin Configuration

The SMB8J18CA-M3/5B typically features two pins, with a standard cathode and anode configuration. The pinout is as follows: - Pin 1: Cathode (K) - Pin 2: Anode (A)

Functional Features

  • Transient Voltage Suppression: Effectively clamps transient overvoltage to protect sensitive electronic components.
  • Fast Response Time: Rapid reaction to voltage surges ensures minimal impact on the protected circuitry.

Advantages and Disadvantages

Advantages

  • Effective surge protection for sensitive electronics
  • Fast response time
  • Compact package size

Disadvantages

  • Limited power dissipation capability compared to larger TVS diodes
  • Lower breakdown voltage compared to some higher-rated TVS diodes

Working Principles

The SMB8J18CA-M3/5B operates based on the principle of avalanche breakdown, where it rapidly conducts excess current when the voltage exceeds its breakdown level, diverting the surge away from the protected circuit.

Detailed Application Field Plans

The SMB8J18CA-M3/5B is commonly utilized in various electronic systems, including: - Consumer electronics - Telecommunication equipment - Automotive electronics - Industrial control systems

Detailed and Complete Alternative Models

  • SMBJ18A: Similar TVS diode with a slightly different package
  • P6SMB18CA: Higher power dissipation TVS diode with similar voltage rating

In conclusion, the SMB8J18CA-M3/5B serves as a crucial component in protecting electronic circuits from transient voltage events, offering effective surge suppression and fast response times. Its compact package and reliable performance make it a popular choice across diverse applications.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de SMB8J18CA-M3/5B en soluciones técnicas

  1. What is the SMB8J18CA-M3/5B?

    • The SMB8J18CA-M3/5B is a transient voltage suppressor diode designed to protect sensitive electronics from voltage spikes and transients.

  2. What is the maximum peak pulse power of the SMB8J18CA-M3/5B?

    • The maximum peak pulse power of the SMB8J18CA-M3/5B is typically 800 watts.

  3. What is the breakdown voltage of the SMB8J18CA-M3/5B?

    • The breakdown voltage of the SMB8J18CA-M3/5B is 18 volts.

  4. What are the typical applications for the SMB8J18CA-M3/5B?

    • Typical applications for the SMB8J18CA-M3/5B include overvoltage protection in various electronic circuits, such as power supplies, communication equipment, and automotive systems.

  5. What is the operating temperature range of the SMB8J18CA-M3/5B?

    • The SMB8J18CA-M3/5B has an operating temperature range of -55°C to 150°C.

  6. What is the package type of the SMB8J18CA-M3/5B?

    • The SMB8J18CA-M3/5B comes in a DO-214AA (SMB) package.

  7. Does the SMB8J18CA-M3/5B comply with RoHS requirements?

    • Yes, the SMB8J18CA-M3/5B is compliant with RoHS (Restriction of Hazardous Substances) requirements.

  8. What is the clamping voltage of the SMB8J18CA-M3/5B?

    • The clamping voltage of the SMB8J18CA-M3/5B is typically 29.2 volts at a peak pulse current of 10A.

  9. Is the SMB8J18CA-M3/5B suitable for high-speed data line protection?

    • Yes, the SMB8J18CA-M3/5B is suitable for protecting high-speed data lines from voltage transients.

  10. Can the SMB8J18CA-M3/5B be used in automotive electronics applications?

    • Yes, the SMB8J18CA-M3/5B is well-suited for use in automotive electronics to protect against voltage surges and transients.