B57213P0470M351

Overview

The B57213P0470M351 is a leaded and coated NTC thermistor disk from the P13 series, designed for inrush current limiting. It features a resistance of 47 Ohms at 25°C with a tolerance of ±20%. The component supports a maximum steady-state current of 3A and has a diameter of 14.5mm (0.571 inches). It utilizes a standard lead spacing of 7.50mm (0.295 inches) for through-hole mounting.

Feature Summary

• Provides effective suppression of high inrush currents during power-up sequences
• Features a robust leaded and coated disk construction for reliable thermal performance
• Designed for repeated cycling applications without significant degradation

Applications

• Switching power supplies
• Consumer electronics
• Industrial equipment

Procurement Notes

Verify the specific suffix M351 against the manufacturer's official datasheet to confirm lead configuration and coating specifications. Ensure the selected variant matches the required steady-state current rating of 3A and the 47 Ohm resistance value for the target circuit design.

Selection Notes

Select this component based on the required 47 Ohm cold resistance and 3A continuous current capacity. Consider the 14.5mm diameter for PCB footprint constraints and verify that the thermal characteristics align with the system's operating environment and duty cycle requirements.

Part Context

This part belongs to the EPCOS P13 series of inrush current limiters. These components are manufactured by TDK Electronics, utilizing NTC technology to protect electronic circuits from transient overcurrents during initial power application.

Replacement Considerations

Compatible substitutes include other P13 series variants such as B57213P0160M351 or B57213P0309M351, provided their electrical ratings match the specific application requirements.