NF20AA0330M--

Inrush Current Limiters (ICL) Overview

The KYOCERA AVX NF20AA0330M-- is a radial lead inrush current limiter (ICL) belonging to the NF20 series. It features a nominal resistance of 33 Ohms with a tolerance of ±20%. The device supports a maximum steady-state current of 3.1 Amperes and has a physical length of 20.00 mm (0.787 inches). This component utilizes positive temperature coefficient ceramic technology to provide effective surge protection in electronic circuits.

Inrush Current Limiters (ICL) Feature Summary

• Utilizes PTC ceramic technology for automatic resettable overcurrent protection
• Provides high energy absorption capability during transient events
• Features radial leads for through-hole mounting applications

Inrush Current Limiters (ICL) Applications

• Power supply input stages for surge suppression
• Consumer electronics circuit protection
• Industrial equipment input filtering

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific suffix and marking codes on the component body against official KYOCERA AVX documentation to confirm the exact resistance value and current rating. Ensure that the thermal environment of the application does not exceed the rated operating limits, as ambient temperature significantly affects the holding current performance of PTC devices.

Inrush Current Limiters (ICL) Selection Notes

Select this component when a resettable fuse is required for low-voltage DC circuits. The 33-ohm initial resistance limits peak charging currents for capacitive loads. Consider the I²t rating and trip time characteristics relative to the downstream circuit's sensitivity to ensure proper coordination without nuisance tripping during normal operation.

Inrush Current Limiters (ICL) Part Context

This part belongs to the NF20 series of inrush current limiters from KYOCERA AVX. These components are designed as alternatives to traditional fuses or discrete thermistors, offering repeated use after fault conditions clear. The series is characterized by compact axial or radial packaging suitable for space-constrained PCB layouts.

Inrush Current Limiters (ICL) Replacement Considerations

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