B57237S0109M051

Inrush Current Limiters (ICL) Overview

The B57237S0109M051 is an NTC thermistor for inrush current limiting manufactured by EPCOS (TDK). It features a nominal resistance of 1 Ohm with a tolerance of ±20%. The component has a steady-state current rating of 9 A and operates at voltages 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. The operating temperature range spans from -55°C to +170°C.

Inrush Current Limiters (ICL) Feature Summary

• Designed specifically for limiting inrush currents in electronic circuits using NTC technology.
• Provides robust protection against overcurrent conditions during power-up phases.
• Constructed as a leaded coated disk suitable for through-hole mounting applications.

Inrush Current Limiters (ICL) Applications

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

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific ordering suffix matches the required resistance and current ratings. Confirm package type availability aligns with production needs. Ensure compliance with RoHS directives if applicable. Cross-reference datasheet parameters against circuit requirements before finalizing procurement orders.

Inrush Current Limiters (ICL) Selection Notes

Select this component based on the required steady-state current capacity of 9 A and initial resistance value. Consider the physical size constraints regarding the 15 mm diameter and 7.5 mm lead spacing. Evaluate thermal performance within the specified -55°C to +170°C operating range for the target application environment.

Inrush Current Limiters (ICL) Part Context

This part belongs to the B57237 series of inrush current limiters produced by EPCOS, now part of TDK Electronics. The series offers various resistance values and current ratings tailored for different power levels. These components are widely used in industries requiring reliable circuit protection against surge currents.

Inrush Current Limiters (ICL) Replacement Considerations

Check for direct substitutes within the B57237 series that match the 1 Ohm resistance and 9 A current rating. Verify dimensional compatibility and lead spacing equivalence when considering alternative manufacturers or variants.