NF10AA0509M--

Inrush Current Limiters (ICL) Overview

The NF10AA0509M-- is an inrush current limiter (ICL) manufactured by KYOCERA AVX. This component belongs to the category of circuit protection devices designed to manage initial surge currents during power-up sequences. It functions as a thermistor-based resistor that exhibits high resistance at low temperatures, effectively limiting peak current flow into capacitive loads or transformers. As the device heats up due to current passage, its resistance drops significantly, allowing normal operating current with minimal voltage drop and power loss. The part is identified under manufacturer number NF10AA0509M--.

Inrush Current Limiters (ICL) Feature Summary

• Provides effective limitation of high inrush currents during system startup
• Automatically transitions from high-resistance state to low-resistance state upon heating
• Designed for repeated cycling without degradation of protective characteristics

Inrush Current Limiters (ICL) Applications

• Power supply input stages requiring surge protection
• Transformer primary side current limiting
• Capacitive load charging circuits

Inrush Current Limiters (ICL) Procurement Notes

Verify availability status carefully as this specific part number is listed as obsolete and no longer manufactured by KYOCERA AVX. Sourcing may only be possible through remaining stock or secondary distributors. Confirm end-of-life status directly with suppliers before committing to design-in decisions. Ensure replacement components meet identical electrical and thermal requirements for seamless integration.

Inrush Current Limiters (ICL) Selection Notes

Select replacement components based on steady-state current handling, maximum allowable voltage, and resistance characteristics at ambient temperature. Evaluate thermal dissipation capabilities within the target application environment. Consider physical size constraints and mounting orientation requirements. Verify that substitute parts offer comparable response times and long-term reliability under expected operating cycles.

Inrush Current Limiters (ICL) Part Context

This component falls under KYOCERA AVX's circuit protection portfolio, specifically within inrush current limiters. These devices are critical for protecting sensitive electronic components from damage caused by sudden current spikes. The product line supports various industrial and commercial applications where reliable power-up sequencing is essential for system longevity and safety.

Inrush Current Limiters (ICL) Replacement Considerations

Public confirmed substitute: B57237S0509M000 (TDK). Verify electrical compatibility including resistance values and current ratings before substitution.