B57238S0220M000

Inrush Current Limiters (ICL) Overview

The B57238S0220M000 is a leaded NTC thermistor designed for inrush current limiting. It features a disk package with radial leads and through-hole mounting. The component has a nominal resistance of 22 ohms at 25 °C with a tolerance of ±20%. It supports a rated AC voltage of 265 V and a power dissipation of 2.1 W. The operating temperature range spans from -55 °C to +170 °C. The body diameter is 16.00 mm, thickness 6.00 mm, and height 23.00 mm.

Inrush Current Limiters (ICL) Feature Summary

• Provides effective inrush current limitation during power-up phases
• Utilizes negative temperature coefficient characteristics for self-regulating resistance
• Features robust leaded construction for reliable through-hole integration

Inrush Current Limiters (ICL) Applications

• Power supply input stages
• Switch-mode power unit protection
• Consumer electronic device circuits

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific part number suffix against official TDK documentation to ensure correct tolerance and thermal specifications. Confirm that the required steady-state resistance and maximum allowable current align with the circuit design parameters before finalizing procurement orders.

Inrush Current Limiters (ICL) Selection Notes

Select this component based on the required initial resistance value and peak current handling capability. Ensure the physical dimensions fit the available board space and that the thermal rating accommodates the expected duty cycle and ambient operating conditions within the target application environment.

Inrush Current Limiters (ICL) Part Context

This component belongs to the B57238 series of inrush current limiters manufactured by EPCOS (TDK). These devices are engineered to protect sensitive electronic components from high transient currents encountered during system startup, ensuring stable operation across various industrial and consumer applications.

Inrush Current Limiters (ICL) Replacement Considerations

Compatible substitutes include other NTC inrush limiters with matching 22-ohm resistance and similar physical dimensions. Verify electrical ratings such as max current and voltage withstand capabilities to ensure functional equivalence without compromising circuit safety.