N25SP004L-F

Inrush Current Limiters (ICL) Overview

The YAGEO N25SP004L-F is a Negative Temperature Coefficient (NTC) thermistor from the SP series, designed for inrush current limiting. It features a nominal resistance of 4 Ohms with a tolerance of ±15%. The component has a power rating of 6.5 W and a steady-state current rating of 14 A. It utilizes a radial leaded package with a disc diameter of 25 mm (0.984 inches). The device operates within a temperature range of -40°C to +200°C and is intended for PCB mounting.

Inrush Current Limiters (ICL) Feature Summary

• Provides effective inrush current limitation during power-up sequences
• Utilizes negative temperature coefficient characteristics for self-regulating resistance
• Features robust radial construction suitable for through-hole PCB integration

Inrush Current Limiters (ICL) Applications

• Power supply input stages for inrush current protection
• AC/DC converter circuits requiring startup current control
• Electronic equipment mains input filtering and protection

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific suffix 'F' indicates the required tape-and-reel or bulk packaging configuration as per the manufacturer's latest datasheet. Confirm that the 14 A current rating aligns with your circuit's thermal management capabilities. Ensure the 4 Ohm resistance value meets the design requirements for acceptable voltage drop during normal operation. Check regional availability restrictions if sourcing through specific distributors.

Inrush Current Limiters (ICL) Selection Notes

Select this component when a 4 Ohm initial resistance is required to limit peak charging currents. The 6.5 W power rating must be sufficient for the expected energy dissipation during the inrush event. Consider the 25 mm diameter for adequate heat dissipation surface area. Verify compatibility with the target PCB hole spacing and mechanical constraints before finalizing the design.

Inrush Current Limiters (ICL) Part Context

This part belongs to YAGEO's SP series of NTC thermistors specifically engineered for inrush current limiting applications. These components are distinct from standard sensing thermistors, as they are optimized for high-current handling and rapid thermal response. The series provides reliable protection for sensitive electronic components against high initial charging currents common in capacitive loads.

Inrush Current Limiters (ICL) Replacement Considerations

Direct substitutes include other YAGEO SP series parts with similar resistance and current ratings, such as N25SP002L-F or N25SP001M-F, provided their electrical parameters match the specific circuit requirements. Cross-manufacturer replacements require careful verification of physical dimensions, lead spacing, and thermal characteristics to ensure functional equivalence.