Protection Thyristor Safeguards Against Damaging Overvoltage Transients

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High power density, small-footprint and surface-mount SOD-123FL solution simplifies PCB design

Littelfuse Inc. introduced the first PxxxxS4xLRP Series SIDACtor® Protection Thyristor, a robust solution for protecting Composite Video Blanking Sync (CVBS) signal lines and ports from damaging overvoltage transients.

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The combination of 6V operating voltage and 100A 5/310µs surge peak current capability and a low junction capacitance rating make the P0080S4BLRP ideal for protecting a wide range of equipment needs data line protection.

Typical applications for the PxxxxS4xLRP Series SIDACtor Protection Thyristor include:

  • TV/camera CVBS cables
  • Data communications
  • Set Top Boxes (STBs)
  • RS-485, RS-232 data lines
  • CAN Bus

For these applications, peak-to-peak signal voltage is within 1.1V and driver IC Vcc voltage is less than 5V, so a protection component with a voltage higher than 6V is generally recommended.

Key Features

  • Provides higher power density in a smaller footprint, which makes it preferable for compact product designs.
  • Operating voltage of 6V with 100A 10/700µS, 4kV surge peak current capability, and junction capacitance of < 30pF make it well-suited for low voltage signal line protection applications, such as 4.43MHz CVBS signals, RS-484, RS-323 data lines or CAN Bus.
  • Compact surface-mount SOD-123FL package

Availability

The PxxxxS4xLRP Series SIDACtor Protection Thyristor is available in SOD-123FL packaging in tape and reel format in quantities of 3,000 from authorized Littelfuse distributors worldwide.

Additional information: PxxxxS4xLRP series

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