B57213P0109M301

Overview

The B57213P0109M301 is a leaded inrush current limiter (ICL) from the EPCOS P13 series, manufactured by TDK. It features a cold resistance of 1 Ohm at 25°C with a tolerance of ±20%. The device supports a maximum steady-state current of 7.5 A and exhibits a hot resistance of approximately 43 mOhms under operating conditions. The component utilizes a coated disk design with a diameter of 0.571 inches (14.5 mm).

Feature Summary

• Provides peak inrush current limitation through high initial resistance that decreases as temperature rises.
• Utilizes a coated disk construction for robust environmental protection and mechanical stability.
• Designed for leaded mounting to facilitate integration into standard circuit board layouts.

Applications

• Power supply input stages requiring surge current suppression
• Electronic equipment protecting sensitive components during startup
• Industrial control systems managing high initial load currents

Procurement Notes

Verify the specific part number suffix against official TDK documentation to confirm exact electrical characteristics and physical dimensions. Ensure compatibility with required thermal management and steady-state current ratings for the target application environment.

Selection Notes

Select this component based on the required cold resistance value and maximum steady-state current capacity. Consider the physical package size and lead spacing constraints within the assembly layout. Confirm that the thermal dissipation requirements align with the device's power handling capabilities during continuous operation.

Part Context

This component belongs to the EPCOS P13 series of inrush current limiters. EPCOS, now part of the TDK Group, specializes in electronic components for automotive, industrial, and consumer electronics markets. The P13 series offers reliable protection against transient overcurrents in various power applications.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Consult official TDK documentation for equivalent series or cross-reference options.