B57238S0100M000

Inrush Current Limiters (ICL) Overview

The B57238S0100M000 is an NTC inrush current limiter from the B57238S0 series, manufactured by EPCOS (TDK Electronics). It features a nominal resistance of 10 Ω with a tolerance of ±20%. Designed for line applications, it supports usable series connections up to 265 VRMS. The component utilizes a coated thermistor disk and kinked leads made of tinned copper wire. It operates within a temperature range of -55 °C to +170 °C and has a thermal time constant of 90 seconds.

Inrush Current Limiters (ICL) Feature Summary

• Coated thermistor disk construction suitable for direct line applications
• Capable of use in series connections up to 265 VRMS
• Kinked leads fabricated from tinned copper wire for secure mounting

Inrush Current Limiters (ICL) Applications

• Switch-mode power supplies
• Inrush current limiting in AC line circuits
• Protection of electronic components during power-up

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific part number against official TDK-EPCOS documentation to confirm availability status, as distribution channels may list items as discontinued or temporarily unavailable. Ensure that the selected variant matches the required voltage and resistance specifications for the target application. Cross-reference ordering codes with manufacturer catalogs to avoid confusion with similar series components.

Inrush Current Limiters (ICL) Selection Notes

Select this component for applications requiring robust inrush current suppression in AC mains environments. Consider the 265 VRMS rating and 10 Ω nominal resistance when designing circuit protection strategies. Evaluate the thermal characteristics and lead configuration to ensure compatibility with the intended PCB layout and operational temperature ranges.

Inrush Current Limiters (ICL) Part Context

This component belongs to the B57238S0 series of NTC inrush current limiters produced by EPCOS, now operating under the TDK Electronics brand. The series is engineered for reliable performance in power supply inputs, providing effective control of initial surge currents to protect downstream electronics from damage during startup phases.

Inrush Current Limiters (ICL) Replacement Considerations

Consult official TDK-EPCOS substitution guides for verified alternative part numbers. Do not assume functional equivalence with generic NTC thermistors without verifying electrical parameters and mechanical dimensions against the original design requirements.