B57238S0809M051

Inrush Current Limiters (ICL) Overview

The B57238S0809M051 is an NTC thermistor inrush current limiter manufactured by TDK. It features a nominal resistance of 8 Ohms with a tolerance of ±20%. The component supports a maximum steady-state current of 5.5 A and has a cold resistance of 131 mOhms. It utilizes a radial leaded package with a disk diameter of 16 mm (0.630 inches). This device is designed for PCB mounting to limit surge currents during power-up.

Inrush Current Limiters (ICL) Feature Summary

• Utilizes negative temperature coefficient characteristics to restrict initial surge currents
• Provides robust protection for electronic circuits against high inrush energy
• Features a coated disk design suitable for through-hole PCB integration

Inrush Current Limiters (ICL) Applications

• Power supply input stages
• Switching mode power supplies
• Industrial control systems

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific part number suffix to ensure compatibility with required thermal and electrical specifications. Confirm that the manufacturer designation aligns with current TDK product lines, as EPCOS components are now integrated into the TDK portfolio. Cross-reference datasheet parameters against application requirements before procurement.

Inrush Current Limiters (ICL) Selection Notes

Select this component based on the required nominal resistance and maximum steady-state current ratings. Ensure the physical dimensions, specifically the 16 mm diameter, fit within the available PCB space. Verify that the thermal performance meets the operational demands of the target circuit environment.

Inrush Current Limiters (ICL) Part Context

This component belongs to the B57238 series of inrush current limiters. It is part of TDK's broader portfolio of nonlinear resistors and thermistors designed for circuit protection. The series offers various resistance and current ratings to suit different power electronics applications.

Inrush Current Limiters (ICL) Replacement Considerations

Consult official TDK documentation for verified substitute part numbers. Do not assume cross-compatibility with other manufacturers' components without validating electrical and mechanical specifications.