SL125R005

Inrush Current Limiters (ICL) Overview

The SL125R005 is an NTC thermistor inrush current limiter from the Vishay Ametherm SL12 series. It features a nominal resistance of 5 ohms and a steady-state current rating of 4 A. The component has a diameter of 12 mm and utilizes radial 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-regulating negative temperature coefficient behavior
• Radial leaded construction for printed circuit board integration

Inrush Current Limiters (ICL) Applications

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

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific manufacturer part number against official Vishay documentation to confirm electrical ratings and package dimensions. Ensure the selected component meets the required thermal and current specifications for the target application. Cross-reference datasheets for any updates regarding compliance or mechanical changes.

Inrush Current Limiters (ICL) Selection Notes

Select this component based on the required steady-state current and cold resistance values. Consider the maximum allowable surge current and the thermal time constant for the specific circuit design. Verify that the physical dimensions fit the available PCB space and mounting requirements.

Inrush Current Limiters (ICL) Part Context

This device belongs to the SL12 series of inrush current limiters manufactured by Vishay / Ametherm. These components are specifically engineered to protect sensitive electronic components from damage caused by high transient currents during system startup.

Inrush Current Limiters (ICL) Replacement Considerations

Consult official Vishay documentation for verified substitute part numbers within the SL series or equivalent product lines. Ensure any replacement matches the original electrical parameters and physical footprint.