B57236S0259M054

Overview

The B57236S0259M054 is a negative temperature coefficient (NTC) thermistor from EPCOS, designed for inrush current limiting applications. It features a nominal resistance of 25 Ohms at 25°C and a maximum steady-state current rating of 54 Amperes. The component utilizes a ceramic body construction to withstand high thermal energy during switching cycles. Key electrical parameters include a B-value of approximately 3950 K between 25°C and 50°C, ensuring accurate temperature sensing capabilities within its operational range.

Feature Summary

• Provides effective inrush current suppression in power supply circuits
• Capable of handling high surge currents without permanent damage
• Offers reliable temperature compensation due to precise NTC characteristics

Applications

• Switching power supplies
• Motor drive circuits
• Industrial control systems

Procurement Notes

Verify the specific ordering suffix M054 against the manufacturer's latest datasheet to confirm physical dimensions and terminal configuration. Ensure that the ambient operating temperature does not exceed the rated limits defined in the official documentation. Cross-reference the part number with authorized distributors to guarantee authenticity and traceability of the batch.

Selection Notes

Select this component based on the required steady-state current capacity and the peak inrush current profile of the target circuit. Evaluate the thermal dissipation environment to ensure the thermistor can cool sufficiently between switching cycles. Confirm that the initial resistance value aligns with the system's startup requirements to limit charging currents effectively.

Part Context

This model belongs to the B57236 series of disc-shaped NTC thermistors. These components are engineered for robust performance in demanding electronic environments. The series is widely recognized for its consistency in manufacturing quality and long-term stability under repeated thermal stress conditions typical in industrial electronics.

Replacement Considerations

Consult the official replacement guide for equivalent parts with matching resistance and current ratings. Verify that any substitute component meets the same mechanical and electrical specifications to maintain system integrity.