B57213P100M301

Overview

The B57213P100M301 is a leaded inrush current limiter (ICL) manufactured by EPCOS - TDK Electronics. It features a nominal resistance of 10 Ohms with a tolerance of ±20% at 25°C. The component supports a maximum steady-state current of 5A and has a disk diameter of 14.5mm. Designed for robust circuit protection, it limits initial surge currents to safeguard downstream electronic components from damage during power-up events.

Feature Summary

• Provides effective inrush current limiting to protect sensitive electronic circuits
• Features a leaded disk construction for reliable through-hole mounting
• Offers stable electrical performance within specified thermal operating ranges

Applications

• Power supply input stages
• Consumer electronics devices
• Industrial control equipment

Procurement Notes

Verify the specific suffix M301 corresponds to the required lead configuration and package dimensions. Confirm that the 10 Ohm resistance and 5A steady-state current ratings align with the target application's thermal and electrical requirements. Ensure compliance with relevant safety standards such as UL certification before integration.

Selection Notes

Select this component when a 10 Ohm initial resistance is required to manage surge currents up to 5A continuously. Consider the 14.5mm disk size for adequate heat dissipation and physical clearance. Evaluate the temperature coefficient characteristics to ensure stable operation under expected load conditions and ambient temperatures.

Part Context

This part belongs to the B57213 series of NTC thermistors designed specifically for inrush current limitation. It complements other variants in the P100 family offering different resistance values and current ratings. The series is widely used in applications requiring robust protection against high startup currents.

Replacement Considerations

Direct substitutes include B57163P100M301 or B57236S0100M301 if dimensional compatibility allows. Verify that alternative parts meet the same 10 Ohm resistance and 5A current specifications. Check for equivalent safety approvals and thermal performance curves.