B57238S0809M000

Inrush Current Limiters (ICL) Overview

The B57238S0809M000 is an NTC thermistor inrush current limiter from the S238 series by TDK. It features an 8-ohm resistance at 25°C with a 20% tolerance and a maximum rated power of 3.9 W. The component measures 16 mm in diameter, 7 mm in width, and has a lead spacing of 7.5 mm. It supports voltage ratings of 115 VAC and 230 VAC, with a current rating of 6.4 A. Operating temperatures range from -55°C to +170°C, and it utilizes radial PCB mounting with tin-plated copper leads.

Inrush Current Limiters (ICL) Feature Summary

• Provides effective inrush current limiting for electronic circuits
• Features negative temperature coefficient characteristics for self-regulating performance
• Designed for reliable radial PCB mounting applications

Inrush Current Limiters (ICL) Applications

• Power supply input stages
• Transformer protection circuits
• General electronic equipment surge suppression

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific manufacturer designation, as sourcing data references both EPCOS and TDK Electronics for this part number. Confirm that the component meets required RoHS3 compliance standards before integration. Ensure the selected variant matches the exact 8-ohm resistance and 16mm diameter specifications to avoid compatibility issues with existing PCB layouts and thermal management requirements.

Inrush Current Limiters (ICL) Selection Notes

Select this component when an 8-ohm initial resistance is required for inrush current control. The 3.9 W power rating and 6.4 A current handling capability suit moderate power applications. Consider the 16mm diameter and 7.5mm lead spacing for adequate board space allocation. Verify that the operating temperature range up to 170°C aligns with the environmental conditions of the target installation site.

Inrush Current Limiters (ICL) Part Context

This component belongs to the S238 series of NTC thermistors, specifically designed as inrush current limiters. The series is characterized by robust construction suitable for protecting sensitive electronic components against high startup currents. These devices are commonly utilized in consumer electronics and industrial power supplies where reliable surge protection is essential for system longevity.

Inrush Current Limiters (ICL) Replacement Considerations

The B57238S0509M000 serves as a verified substitute within the same series, offering identical physical dimensions but differing in resistance value.