SL125R005A

Inrush Current Limiters (ICL) Overview

The SL125R005A is a radial lead NTC thermistor inrush current limiter from the Vishay Ametherm SL12 series. It features a nominal resistance of 5 Ohms with a ±20% tolerance and a steady-state current rating of 5 A. The component has a diameter of 13 mm (0.512 inches) and utilizes kinked leads for PCB mounting. It is designed to suppress high initial charging currents in electronic circuits.

Inrush Current Limiters (ICL) Feature Summary

• Suppresses high inrush currents during power-up
• Self-resetting negative temperature coefficient operation
• Radial kinked lead configuration for board mounting

Inrush Current Limiters (ICL) Applications

• Power supply input stages
• Transformer primary circuits
• Capacitive load protection

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific suffix 'A' against official Vishay documentation to confirm lead style and mechanical dimensions. Ensure the selected variant matches the required 5 A current rating and 5 Ohm resistance for the target application circuit design.

Inrush Current Limiters (ICL) Selection Notes

Select this component based on the 5 Ohm cold resistance and 5 A continuous current requirements. Confirm that the 13 mm diameter fits the available PCB space and that the kinked lead pitch aligns with the board layout specifications.

Inrush Current Limiters (ICL) Part Context

This part belongs to the SL12 series of inrush current limiters manufactured by Vishay / Ametherm. These components are specialized NTC thermistors engineered specifically for protecting sensitive electronics from surge currents upon energization.

Inrush Current Limiters (ICL) Replacement Considerations

Cross-reference with SL125R005 for standard lead variations. Verify compatibility with SL1225003B285 if higher current handling or different resistance values are required.