B57238S0150M051

Inrush Current Limiters (ICL) Overview

The B57238S0150M051 is an NTC thermistor inrush current limiter from the S238 series, manufactured by EPCOS (TDK Electronics). It features a nominal resistance of 15 Ohms with a tolerance of ±20% at 25°C. The component supports a maximum steady-state current of 4.4 A and operates within voltage ratings of 110 VAC and 230 VAC. It has a disk diameter of 16 mm and utilizes radial leads for PCB mounting.

Inrush Current Limiters (ICL) Feature Summary

• Provides effective circuit protection against high initial surge currents during power-up phases
• Utilizes negative temperature coefficient characteristics to automatically reduce resistance as it heats up
• Designed for robust performance in AC mains applications with specified voltage ratings

Inrush Current Limiters (ICL) Applications

• Power supply input stages
• Electronic equipment surge protection
• Circuit protection for AC mains interfaces

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific manufacturer designation, confirming whether the source lists EPCOS or TDK Electronics, as both names are associated with this component lineage. Ensure the ordering suffix matches the required lead spacing and packaging format. Confirm RoHS compliance status through the official datasheet before finalizing procurement orders.

Inrush Current Limiters (ICL) Selection Notes

Select this component based on the required 15 Ohm resistance value and 4.4 A steady-state current capacity. Ensure the 16 mm diameter fits the available PCB space. Verify that the operating temperature range and voltage ratings align with the specific application's electrical requirements and safety standards.

Inrush Current Limiters (ICL) Part Context

This part belongs to the B57238 series of NTC thermistors designed specifically for inrush current limiting. These components are widely used in consumer electronics and industrial power supplies to protect sensitive downstream circuits from damage caused by high transient currents during initial energization.

Inrush Current Limiters (ICL) Replacement Considerations

Cross-reference with other S238 series variants such as B57238S0250M051 for different resistance values. Ensure any substitute maintains the same 16 mm diameter and radial lead configuration to fit existing footprints without mechanical modification.