B57213P0259M351

Overview

The B57213P0259M351 is a leaded inrush current limiter (ICL) from the P13 series by EPCOS (TDK). It features a nominal resistance of 2.5 Ohms at 25°C with a tolerance of ±20%. The component supports a maximum steady-state current of 6.5A and exhibits a hot resistance of 48 mOhms. It has a disk diameter of 14.5mm and a lead spacing of 7.50mm.

Feature Summary

• Leaded and coated disk construction for robust circuit protection
• Optimized internal thermal resistance for high reliability
• Capable of handling significant surge currents during power-up

Applications

• Power supply input stages
• Consumer electronic devices
• Industrial equipment power modules

Procurement Notes

Verify the specific suffix M351 against the official datasheet to confirm lead configuration and coating specifications. Ensure the application environment remains within the rated voltage and current limits defined in the manufacturer's documentation to maintain device integrity.

Selection Notes

Select this component when a low initial resistance of 2.5 Ohms is required to limit peak charging currents. The 14.5mm form factor suits applications needing higher energy absorption compared to smaller packages. Confirm compatibility with the target PCB lead spacing of 7.50mm before integration.

Part Context

This part belongs to the P13 series of NTC thermistors designed specifically for inrush current limiting. It serves as a protective element in AC/DC conversion circuits, preventing damage to downstream components caused by capacitive charging spikes upon initial power application.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.