SL125R005H

Inrush Current Limiters (ICL) Overview

The SL125R005H is a negative temperature coefficient (NTC) thermistor inrush current limiter from the Vishay Ametherm SL12 series. Designed for PCB mounting, this component features radial kinked leads with a 7.8 mm spacing and a 0.8 mm lead diameter. It provides a nominal resistance of 5 Ohms with a 20% tolerance and supports steady-state currents up to 5 A. The device is rated for AC voltages of 115 VAC and 230 VAC, with a physical body diameter of 13 mm.

Inrush Current Limiters (ICL) Feature Summary

• Utilizes NTC thermistor technology to suppress high initial charging currents during power-up
• Features radial kinked lead configuration for secure through-hole PCB installation
• Provides stable low-resistance state after thermal activation to minimize operational losses

Inrush Current Limiters (ICL) Applications

• Power supply input stages
• Consumer electronics power inputs
• Industrial control circuit protection

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific suffix 'H' against the manufacturer datasheet to confirm lead form and dimensional tolerances. Ensure the selected component matches the required 5A steady-state current rating and 5 Ohm resistance value for the target application voltage. Confirm RoHS compliance status prior to final integration.

Inrush Current Limiters (ICL) Selection Notes

Select this model for applications requiring moderate inrush suppression with a 5 Ohm cold resistance. The 13 mm diameter offers sufficient thermal mass for 5A continuous operation. Consider the kinked lead style for automated assembly compatibility. Evaluate thermal dissipation requirements on the PCB layout to ensure reliable long-term performance under operating conditions.

Inrush Current Limiters (ICL) Part Context

This component belongs to the SL12 series of inrush current limiters, which are characterized by compact dimensions suitable for space-constrained designs. The series utilizes ceramic NTC materials to provide effective surge protection while maintaining low profile specifications for standard electronic assemblies.

Inrush Current Limiters (ICL) Replacement Considerations

Direct substitutes include the SL121R010 for lower resistance applications or the SL1210005 for higher resistance requirements within the same series. Verify that alternative part numbers match the 5A current rating and 13 mm diameter constraints.