NTJ09-002LF

Inrush Current Limiters (ICL) Overview

The NTJ09-002LF is a ceramic inrush current limiter (ICL) manufactured by YAGEO. It features a nominal cold resistance of 2 Ohms with a tolerance of ±15%. The component supports a maximum steady-state current of 9 Amperes and has a cylindrical body diameter of 18.00 mm (0.709 inches). This thermistor-based device is designed to limit high initial surge currents during power-up phases in electronic circuits.

Inrush Current Limiters (ICL) Feature Summary

• Provides automatic limitation of high inrush currents during circuit energization
• Utilizes positive temperature coefficient ceramic material for self-regulating resistance
• Offers reliable protection against thermal stress on sensitive downstream components

Inrush Current Limiters (ICL) Applications

• Power supply input stages
• Transformer primary side protection
• Capacitor charging circuit limiting

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific ordering suffix, as LF denotes lead-free compliance. Confirm that the ±15% resistance tolerance and 9 A current rating align with the target circuit design requirements. Ensure the 18 mm package size fits within the available PCB real estate and thermal management constraints before finalizing procurement orders.

Inrush Current Limiters (ICL) Selection Notes

Select this component when a fixed 2 Ohm cold resistance is required to manage surge energy. The 9 A rating determines the continuous operating capability after the device warms up. Consider the thermal dissipation characteristics and ambient temperature conditions, as the resistance value increases significantly with temperature during normal operation.

Inrush Current Limiters (ICL) Part Context

This part belongs to YAGEO's NTJ series of inrush current limiters. These components are distinct from standard resistors due to their non-linear resistance-temperature characteristics. The series provides solutions for protecting electronics from damage caused by sudden current spikes upon power application.

Inrush Current Limiters (ICL) Replacement Considerations

The NTJ09-002M is a variant with ±20% resistance tolerance. Verify if the tighter ±15% tolerance of the LF version is necessary for the specific application before substituting.