B57211P0470M351

Overview

The B57211P0470M351 is a leaded inrush current limiter (ICL) from the P11 series by TDK Electronics. It features a nominal resistance of 47 Ohms at 25°C with a tolerance of ±20%. The component supports a maximum steady-state current of 2 A and has a body diameter of 13 mm (0.512 inches). It utilizes a standard lead spacing of 7.50 mm (0.295 inches) for through-hole mounting.

Feature Summary

• Provides effective suppression of high inrush currents during power-up to protect downstream electronic circuits.
• Features negative temperature coefficient characteristics, allowing resistance to decrease significantly as operating temperature rises.
• Designed for robust performance in repetitive switching applications within various power supply architectures.

Applications

• Switching power supplies
• Universal AC-DC converters
• Power factor correction circuits

Procurement Notes

Verify that the specific ordering suffix matches the required resistance and package dimensions. Confirm RoHS compliance status and ensure the supplier provides valid traceability documentation. Check for any recent product change notifications regarding marking or material composition updates before finalizing procurement orders.

Selection Notes

Select this component based on the required cold resistance value and the maximum continuous current rating of the target circuit. Ensure the physical footprint fits the PCB layout constraints. Evaluate the energy absorption capability against potential surge events to guarantee long-term reliability under operational stress conditions.

Part Context

This part belongs to the P11 series of NTC inrush current limiters manufactured by TDK Electronics. These components are widely used in consumer electronics and industrial equipment to mitigate electrical stress during startup. The series offers various resistance values and current ratings to suit different power levels.

Replacement Considerations

B57211P0200M351

FAQ

What is the nominal resistance value of the B57211P0470M351?

The nominal resistance is 47 Ohms measured at 25°C.

What is the maximum steady-state current rating?

The component is rated for a maximum steady-state current of 2 Amperes.