B57237S0509M051

Inrush Current Limiters (ICL) Overview

The B57237S0509M051 is an NTC thermistor for inrush current limiting manufactured by EPCOS (TDK). It features a nominal resistance of 5 Ohms with a tolerance of ±20%. The component has a current rating of 5 A and supports voltage ratings of 110 VAC and 230 VAC. Physical dimensions include a diameter of 15 mm, width of 6 mm, lead spacing of 7.5 mm, and lead diameter of 0.8 mm. Operating temperature range spans from -55°C to +170°C.

Inrush Current Limiters (ICL) Feature Summary

• Provides effective inrush current limitation during power-up sequences
• Utilizes negative temperature coefficient characteristics for self-regulating resistance
• Designed for through-hole mounting on printed circuit boards

Inrush Current Limiters (ICL) Applications

• Power supply input stages
• Consumer electronics protection
• Industrial control systems

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific suffix M051 against official TDK documentation to confirm lead configuration and packaging details. Ensure compatibility with target voltage ratings and thermal management requirements before integration. Cross-reference manufacturer datasheets for precise mechanical tolerances and environmental compliance status.

Inrush Current Limiters (ICL) Selection Notes

Select this component based on the required 5 Ohm cold resistance and 5 A steady-state current capacity. Evaluate thermal dissipation needs within the application environment. Confirm that the 15 mm disc size fits the available PCB footprint and clearance constraints.

Inrush Current Limiters (ICL) Part Context

This part belongs to the B57237 series of NTC thermistors designed specifically for inrush current limiting applications. The series offers various resistance values and physical sizes to accommodate different power levels and form factors within electronic equipment.

Inrush Current Limiters (ICL) Replacement Considerations

Consult official TDK substitution lists for compatible alternatives. Verify electrical parameters and mechanical dimensions match exactly when considering cross-brand replacements.