B57237S0150M051

Inrush Current Limiters (ICL) Overview

The B57237S0150M051 is a negative temperature coefficient (NTC) thermistor from the B57237S0 series, manufactured by TDK. Designed as an inrush current limiter (ICL), it features a resistance of 15 Ohms at 25°C with a tolerance of ±20%. The component supports a maximum steady-state current of 3 A and has a maximum rated power of 3100 mW. It operates within a temperature range of -55°C to 170°C, with a thermal time constant of 90 seconds. The physical dimensions include a diameter of 15 mm and a lead spacing of 7.50 mm.

Inrush Current Limiters (ICL) Feature Summary

• Provides effective inrush current limiting for electronic circuits
• Features robust construction suitable for PCB mounting applications
• Complies with international safety standards including EN 143000 and IEC 60539

Inrush Current Limiters (ICL) Applications

• Inrush current limitation in power supply units
• Protection of electronic components during startup phases
• General circuit protection in industrial equipment

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific part number suffix against official TDK documentation to ensure correct electrical characteristics and packaging configuration. Confirm that the component meets required safety certifications such as UL or IEC standards for the intended application environment. Check RoHS compliance status if restricted substances are a concern for the project.

Inrush Current Limiters (ICL) Selection Notes

Select this component based on the required steady-state current rating of 3 A and the initial resistance value of 15 Ohms. Ensure the operating temperature range of -55°C to 170°C aligns with the environmental conditions of the target device. Consider the thermal time constant of 90 seconds when evaluating response speed requirements for the specific circuit design.

Inrush Current Limiters (ICL) Part Context

This component belongs to the B57237S0 series of NTC thermistors originally developed under the EPCOS brand, which is now part of TDK Electronics. The series is widely recognized for its reliability in circuit protection applications. TDK acquired EPCOS, integrating these products into their broader portfolio of passive electronic components.

Inrush Current Limiters (ICL) Replacement Considerations

Consult official TDK datasheets for direct cross-references within the B57237S0 family. Verify compatibility with alternative manufacturers' inrush current limiters by matching key parameters such as resistance, current rating, and physical dimensions.