SL224R014

Inrush Current Limiters (ICL) Overview

The Vishay Ametherm SL224R014 is a Negative Temperature Coefficient (NTC) thermistor designed as an inrush current limiter. It features a nominal resistance of 4 Ohms with a tolerance of ±20% at 25°C. The component supports a maximum steady-state current of 14 A and has a physical diameter of 22.00 mm (0.866 inches). It utilizes radial leads with a spacing of 7.80 mm (0.307 inches). The device is certified by CSA and UL for safety compliance.

Inrush Current Limiters (ICL) Feature Summary

• Functions as an NTC thermistor to suppress high initial current surges during power-up
• Provides thermal protection for switching power supply components against damage
• Utilizes through-hole mounting technology for PCB integration

Inrush Current Limiters (ICL) Applications

• Switching power supplies
• Power factor correction circuits
• Transformer protection systems

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific manufacturer part number SL224R014 against official Vishay Ametherm documentation to ensure correct electrical ratings. Confirm that the required steady-state current does not exceed 14 A and that the operating environment aligns with the component's thermal characteristics. Check for RoHS3 compliance status if environmental regulations apply to the final assembly.

Inrush Current Limiters (ICL) Selection Notes

Select this component when a 4 Ohm cold resistance is required to limit inrush current in circuits handling up to 14 A steady-state load. Ensure the PCB layout accommodates the 22 mm diameter body and 7.8 mm lead spacing. Consider the thermal dissipation requirements and the maximum recommended energy rating of 100 Joules for the specific application voltage.

Inrush Current Limiters (ICL) Part Context

This component belongs to the SL22 series of inrush current limiters from Vishay Ametherm. The series offers various resistance and current ratings within a standardized 22 mm form factor, allowing designers to scale protection levels while maintaining consistent mechanical footprint and mounting specifications across different power supply designs.

Inrush Current Limiters (ICL) Replacement Considerations

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