N15SP055M-F

Inrush Current Limiters (ICL) Overview

The YAGEO N15SP055M-F is a Negative Temperature Coefficient (NTC) thermistor belonging to the SP series, designed primarily for inrush current limiting applications. It features a nominal resistance of 55 Ohms with a tolerance of ±20%. The component has a power rating of 3 W and a maximum continuous current rating of 3 A. It utilizes a radial leaded package with a bead diameter of 15 mm and a width of approximately 6.5 mm. The device supports PCB mounting and operates within a temperature range from -40°C to +200°C.

Inrush Current Limiters (ICL) Feature Summary

• Provides effective inrush current limitation during power-up phases
• Features rapid self-heating response to reduce impedance
• Offers stable performance across wide operating temperatures

Inrush Current Limiters (ICL) Applications

• Power supply input stages
• Motor drive circuits
• Electronic ballast protection

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific datasheet version for precise thermal characteristics and pulse withstand ratings before integration. Confirm that the 55 Ohm resistance value aligns with the target circuit's steady-state requirements after the thermistor heats up. Ensure the PCB layout accommodates the radial lead spacing and physical dimensions to prevent mechanical stress during soldering.

Inrush Current Limiters (ICL) Selection Notes

Select this component when a 55 Ohm initial resistance is required to limit peak charging currents in capacitive loads. Compare against higher or lower resistance variants in the SP series based on the specific voltage and current profiles of the application. Consider the thermal dissipation capabilities of the surrounding environment to ensure the device stays within its maximum operating temperature limits.

Inrush Current Limiters (ICL) Part Context

This part belongs to YAGEO's SP series of NTC thermistors, which are specialized for inrush current limiting rather than temperature sensing. Unlike general-purpose thermistors, these components are engineered to handle high initial energy pulses while transitioning to a low-resistance state quickly. The model number indicates the 15 mm bead size and 55 Ohm nominal resistance.

Inrush Current Limiters (ICL) Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Cross-referencing requires matching the 55 Ohm resistance, 3 A current rating, and 15 mm form factor.