SL222R018A

Inrush Current Limiters (ICL) Overview

The SL222R018A is a radial lead inrush current limiter from the Vishay Ametherm SL22 series. It features a nominal resistance of 2 Ohms with a tolerance of ±20% and a steady-state current rating of 18 A. The component has a cylindrical body diameter of 22 mm and operates at voltage ratings of 115 VAC or 230 VAC. It utilizes kinked leads for PCB mounting, with a lead spacing of 7.8 mm and a lead diameter of 1 mm.

Inrush Current Limiters (ICL) Feature Summary

• Utilizes NTC thermistor technology to provide high initial resistance that decreases as temperature rises during operation.
• Designed with kinked radial leads to facilitate secure through-hole mounting on printed circuit boards.
• Engineered to suppress high inrush currents during power-up, protecting downstream components from thermal stress.

Inrush Current Limiters (ICL) Applications

• Power supply input stages
• Transformer primary circuits
• Capacitive load protection

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm lead configuration and tolerance specifications. Ensure the selected variant matches the required steady-state current and voltage ratings for the target application. Cross-reference the Mouser part number 995-SL222R018A with the original equipment manufacturer documentation to validate technical parameters before procurement.

Inrush Current Limiters (ICL) Selection Notes

Select this component based on the required 2 Ohm resistance value and 18 A current handling capability. Consider the 22 mm package size for adequate thermal dissipation and mechanical clearance within the assembly. Verify compatibility with standard PCB layouts requiring 7.8 mm lead spacing and ensure the operating environment supports the thermal characteristics of NTC materials.

Inrush Current Limiters (ICL) Part Context

This device belongs to the SL22 series of inrush current limiters manufactured by Vishay / Ametherm. The series offers various resistance and current ratings tailored for different power levels. These components are widely used in electronic equipment requiring robust protection against surge currents during initial energization phases.

Inrush Current Limiters (ICL) Replacement Considerations

SL222R018A