SL22 40005-B

Inrush Current Limiters (ICL) Overview

The SL2240005B is a negative temperature coefficient (NTC) thermistor inrush current limiter from the Vishay Ametherm SL22 series. It features a radial leaded package with a 22 mm diameter and 7.8 mm lead spacing. The component provides a nominal resistance of 40 Ohms with a tolerance of ±20%. It supports a maximum steady-state current of 5 A and has a maximum energy absorption rating of 63 Joules. Designed for through-hole mounting, it operates at rated voltages of 115 VAC and 230 VAC.

Inrush Current Limiters (ICL) Feature Summary

• Utilizes M-type material for stable beta and curve characteristics
• Radial-leaded configuration facilitates standard PCB mounting
• Provides high energy absorption capacity for surge protection

Inrush Current Limiters (ICL) Applications

• Power supply input stages
• Transformer inrush limiting
• Capacitor charging circuits
• General electronic equipment power inputs

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific suffix 'B' against the manufacturer's official datasheet to confirm that it denotes the correct variant for your design requirements. Ensure that the thermal management strategy accounts for the self-heating effects during normal operation. Confirm that the peak inrush current in your application does not exceed the component's specified limits to prevent damage.

Inrush Current Limiters (ICL) Selection Notes

Select this component when a 40 Ohm initial resistance is required to limit startup currents in 115 VAC or 230 VAC systems. The 5 A steady-state current rating determines the maximum continuous load capacity. Consider the 63 J energy rating to ensure the device can handle the specific capacitive loads present in the target circuit without failure.

Inrush Current Limiters (ICL) Part Context

This part belongs to the SL22 series of inrush current limiters manufactured by Vishay / Ametherm. The series is characterized by its robust construction and suitability for general-purpose power applications. The SL2240005B represents a specific resistance and current combination within this family, designed for reliable performance in standard AC power environments.

Inrush Current Limiters (ICL) Replacement Considerations

Direct substitutes include other Vishay Ametherm parts with identical electrical parameters, such as the SL2240005. Cross-manufacturer replacements require matching the 40 Ohm resistance, 5 A current rating, and 22 mm form factor to ensure mechanical and electrical compatibility.

Inrush Current Limiters (ICL) FAQ

What is the maximum energy rating of the SL2240005B?

The component has a maximum energy absorption rating of 63 Joules.

What are the lead specifications for this component?

It features radial leads with a spacing of 7.8 mm and a lead diameter of 1 mm.