SG220C007

Inrush Current Limiters (ICL) Overview

The SG220C007 is a radial lead NTC thermistor inrush current limiter from the Vishay Ametherm Surge-Gard series. It features a nominal resistance of 10 ohms with a tolerance of 15% and a steady-state current rating of 3 A. The device is rated for a maximum voltage of 265 VAC and has a physical diameter of 11.43 mm (0.45 in). It utilizes straight radial leads with a spacing of 0.31 in and a lead diameter of 0.032 in. The component is designed for PCB mounting and carries UL approval.

Inrush Current Limiters (ICL) Feature Summary

• Utilizes negative temperature coefficient (NTC) thermistor technology to limit initial surge currents during power-up.
• Provides UL certification, verifying compliance with stringent safety and performance requirements.
• Features a compact radial package design suitable for direct printed circuit board mounting.

Inrush Current Limiters (ICL) Applications

• Power supply input stages
• Electronic equipment requiring surge protection
• Industrial control circuits

Inrush Current Limiters (ICL) Procurement Notes

Verify that the specific SG220C007 designation matches the required 10-ohm resistance and 3-ampere current rating for your application. Confirm the 11.43 mm diameter and radial lead spacing align with your PCB footprint constraints. Ensure the 265 VAC voltage rating meets the system's electrical requirements. Cross-reference the UL listing status if safety certification is mandatory for the end product.

Inrush Current Limiters (ICL) Selection Notes

Select this component when a 10-ohm cold resistance is necessary to restrict inrush current to safe levels for downstream components. The 3 A steady-state rating determines the maximum continuous operating current. Consider the 15% resistance tolerance for circuit design margins. The radial lead configuration dictates the mechanical assembly method on the PCB.

Inrush Current Limiters (ICL) Part Context

This part belongs to the Vishay Ametherm Surge-Gard family of inrush current limiters. These devices are engineered to protect sensitive electronic components from high initial charging currents. The SG220C007 represents a specific variant within this line, distinguished by its 10-ohm resistance value and 3-ampere current handling capability.

Inrush Current Limiters (ICL) Replacement Considerations

Direct substitutes must match the 10-ohm resistance, 3 A current rating, and 265 VAC voltage rating. Verify that alternative parts maintain the same radial lead spacing and diameter for mechanical compatibility. Check for equivalent UL certification if regulatory compliance is required.