B57213P0250M301

Overview

The B57213P0250M301 is a leaded inrush current limiter (ICL) from the P13 series, manufactured by EPCOS (TDK). It features a nominal resistance of 25 Ohms with a tolerance of ±20% at 25°C. The component supports a maximum steady-state current of 3 A and has a disk diameter of 14.5 mm (0.571 inches). It utilizes coated disk construction for environmental protection.

Feature Summary

• Provides effective inrush current limiting to protect downstream electronic circuits during power-up phases.
• Features a robust leaded and coated disk design suitable for through-hole mounting applications.
• Offers high stability and reliability for repeated switching cycles in various industrial environments.

Applications

• Power supply input stages
• Industrial control systems
• Consumer electronics AC/DC adapters

Procurement Notes

Verify that the specific suffix M301 matches the required lead configuration and packaging format for your assembly process. Confirm that the 25 Ohm resistance value aligns with the thermal and electrical requirements of the target circuit design before finalizing orders.

Selection Notes

Select this component when a 25 Ohm initial resistance and 3 A steady-state current rating are required. Ensure the 14.5 mm package size fits within the available PCB area. Consider the thermal dissipation capabilities relative to the expected duty cycle and ambient operating temperatures.

Part Context

This part belongs to the B57213 series of inrush current limiters, which are negative temperature coefficient (NTC) thermistors designed for soft-start applications. The series is widely used in TDK's passive component portfolio for protecting sensitive electronics from high initial charging currents.

Replacement Considerations

Check datasheets for equivalent parts offering identical 25 Ohm resistance and 3 A current ratings. Verify mechanical dimensions and lead spacing compatibility if substituting with components from other manufacturers or different series within the same brand family.