NTPAA2R2LDNB0

Inrush Current Limiters (ICL) Overview

The NTPAA2R2LDNB0 is an inrush current limiter manufactured by Murata Electronics. It is a negative temperature coefficient (NTC) thermistor designed to limit surge currents during power-up. The component features a nominal resistance of 2.2 ohms with a tolerance of ±15%. It supports a maximum steady-state current of 3.7 A and has a physical diameter of 10.00 mm (0.394 inches). The device operates within a standard temperature range typical for industrial electronic applications.

Inrush Current Limiters (ICL) Feature Summary

• Provides effective limitation of high inrush currents during initial power application
• Utilizes negative temperature coefficient characteristics for automatic resistance adjustment
• Designed for robust performance in protecting sensitive electronic circuits from surge damage

Inrush Current Limiters (ICL) Applications

• Power supply input stages
• Consumer electronics protection
• Industrial control systems

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific manufacturing lot and datasheet revision before integration, as component specifications may undergo updates. Confirm that the 2.2-ohm resistance value aligns with the target circuit's surge requirements. Ensure the 3.7 A current rating exceeds the peak operational demands. Check for any end-of-life notices or alternative part recommendations from Murata Electronics to ensure long-term supply chain stability.

Inrush Current Limiters (ICL) Selection Notes

Select this component when a 2.2-ohm initial resistance is required to manage startup surges. The 3.7 A rating suits moderate-power applications. Consider the 10 mm package size for board layout constraints. Verify thermal dissipation capabilities against ambient operating conditions. Compare against other NTC variants if higher current handling or different resistance values are needed for specific circuit designs.

Inrush Current Limiters (ICL) Part Context

This part belongs to the NTP series of inrush current limiters from Murata Electronics. These components are widely used in AC/DC converters and power adapters. The NTPAA2R2LDNB0 specifically offers a balance between low cold resistance and high current capacity, making it suitable for general-purpose power filtering and surge suppression tasks in commercial electronics.

Inrush Current Limiters (ICL) Replacement Considerations

Check Murata's official documentation for direct cross-references. Other NTP series variants with similar resistance and current ratings may serve as functional substitutes if pin compatibility and thermal profiles match. Verify that any replacement maintains the same ±15% tolerance and 10 mm form factor.