SL125R002

Inrush Current Limiters (ICL) Overview

The SL125R002 is a negative temperature coefficient (NTC) thermistor inrush current limiter from the Vishay Ametherm SL12 series. It features a nominal resistance of 5 Ohms with a tolerance of ±20%. The device supports a steady-state current rating of 2 A and has a physical diameter of 13 mm. It utilizes radial leads for through-hole PCB mounting.

Inrush Current Limiters (ICL) Feature Summary

• Provides effective limitation of high inrush currents during power-up sequences to protect downstream components.
• Utilizes NTC thermistor technology where resistance decreases as temperature increases, allowing efficient steady-state conduction.

Inrush Current Limiters (ICL) Applications

• Protection circuits for switching power supplies
• AC/DC converter input stages
• General electronic equipment requiring surge suppression

Inrush Current Limiters (ICL) Procurement Notes

Verify component authenticity by checking manufacturer markings against official datasheets. Confirm lead form and spacing match PCB layout requirements. Ensure thermal management considerations account for self-heating effects during operation. Validate that the 2 A current rating meets system peak load demands without exceeding thermal limits.

Inrush Current Limiters (ICL) Selection Notes

Select this component when a 5 Ohm initial resistance and 2 A continuous current capacity are required. The 13 mm diameter indicates specific thermal mass characteristics suitable for moderate power applications. Compare against other SL series variants if higher current or different resistance values are needed for the target circuit design.

Inrush Current Limiters (ICL) Part Context

This part belongs to the Vishay Ametherm SL12 series of inrush current limiters. These components are designed for general-purpose surge protection in low to medium power electronics. The series offers various resistance and current ratings to suit different application profiles while maintaining consistent mounting and performance characteristics.

Inrush Current Limiters (ICL) Replacement Considerations

SL125R002B285

Inrush Current Limiters (ICL) FAQ

What is the steady-state current rating of the SL125R002?

The SL125R002 has a steady-state current rating of 2 A.

What is the nominal resistance value at room temperature?

The nominal resistance is 5 Ohms with a tolerance of ±20%.