SL2210007

Inrush Current Limiters (ICL) Overview

The Vishay Ametherm SL2210007 is a radial leaded inrush current limiter with a nominal resistance of 10 Ohms and a steady-state current rating of 7 A. Designed for PCB mounting, it features a 22 mm diameter body and operates at voltage ratings of 115 VAC and 230 VAC. The component exhibits a tolerance of ±20% and a dissipation factor of 32.4 mW/C. It utilizes kinked leads with a pitch spacing of 3.77 mm and a lead diameter of 1 mm.

Inrush Current Limiters (ICL) Feature Summary

• Provides high energy absorption capability to protect circuits during power-up
• Features rapid resistance drop from high initial value to negligible steady-state level
• Includes UL certification ensuring compliance with stringent safety standards

Inrush Current Limiters (ICL) Applications

• Switching power supplies
• Uninterruptible power supplies (UPS)
• Industrial inverters and variable frequency drives

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific package variant against the datasheet, as suffixes may indicate physical differences such as kinked leads. Confirm that the 7 A steady-state current and 10 Ohm resistance align with the target circuit's thermal and electrical requirements. Ensure the 22 mm form factor fits the available PCB space and that the radial lead configuration matches the assembly process.

Inrush Current Limiters (ICL) Selection Notes

Select this component when a 10 Ohm initial resistance is required to limit inrush currents up to 7 A. The 22 mm diameter provides sufficient thermal mass for higher energy applications compared to smaller series. Consider the 32.4 mW/C dissipation factor for thermal management calculations. This part is suitable for AC mains inputs where UL safety approval is mandatory for the end product.

Inrush Current Limiters (ICL) Part Context

The SL2210007 belongs to the SL22 series of NTC thermistors designed for robust inrush current limiting. This series is characterized by its ability to handle significant energy pulses while maintaining low steady-state power loss. The component serves as a critical protection element in power electronics, preventing damage to downstream components caused by capacitive charging surges.

Inrush Current Limiters (ICL) Replacement Considerations

Direct substitutes within the same series include the SL221R020 for lower resistance applications or the SL2220007 for higher current handling. Verify that any replacement maintains the 10 Ohm resistance and 7 A current rating to ensure equivalent circuit protection performance.