B57364S0509M051

Inrush Current Limiters (ICL) Overview

The EPCOS B57364S0509M051 is a radial lead-in NTC thermistor designed for inrush current limiting applications. It features a nominal resistance of 5 Ohms with a tolerance of ±20% at 25°C and supports a maximum steady-state current of 8.5 A. The component has a diameter of 21 mm and operates within a temperature range of -55 °C to 170 °C. It complies with IEC 60068-2-78, IATF 16949, and MIL-STD-202 standards.

Inrush Current Limiters (ICL) Feature Summary

• Designed specifically for inrush current limiting functions
• Provides high long-term stability in high temperature and humidity environments
• Features small resistance and B-value tolerances for precise thermal response

Inrush Current Limiters (ICL) Applications

• Surge current protection in power supplies
• Inrush current limitation for electronic equipment
• Temperature compensation circuits

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific ordering suffix against official TDK/EPCOS documentation to ensure correct resistance and tolerance specifications. Confirm that the radial lead configuration matches the target PCB layout requirements. Ensure compliance with relevant automotive or industrial certifications such as IATF 16949 if applicable to the end product.

Inrush Current Limiters (ICL) Selection Notes

Select this component when a robust NTC thermistor is required for managing high initial surge currents in power circuits. The 5 Ohm resistance value and 8.5 A current rating make it suitable for medium-power applications. Consider the 21 mm diameter for adequate heat dissipation and mechanical mounting space on the printed circuit board.

Inrush Current Limiters (ICL) Part Context

This part belongs to the B57364S0 series of NTC thermistors from EPCOS (TDK). These components are widely used in consumer electronics, automotive systems, and industrial modules where reliable temperature sensing and current limiting are critical. The series is known for its compact design and high reliability under harsh operating conditions.

Inrush Current Limiters (ICL) Replacement Considerations

Consult official TDK cross-reference lists for verified substitutes. Generic equivalents may not match the specific B-value curve or mechanical dimensions required for inrush current limiting applications.