SL220R712BCJ

Inrush Current Limiters (ICL) Overview

The Vishay Ametherm SL220R712BCJ is a BigAMP inrush current limiter (ICL) designed for power electronics. It features a nominal resistance of 0.7 ohms with a 25% tolerance and supports a steady-state current of 12A. The component utilizes a 22mm diameter form factor with custom lead configurations.

Inrush Current Limiters (ICL) Feature Summary

• Absorbs high inrush currents during equipment startup to protect downstream circuitry
• Resistance drops rapidly to negligible levels under steady-state operating conditions
• Provides robust energy absorption capacity for reliable long-term performance

Inrush Current Limiters (ICL) Applications

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

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific lead configuration against mechanical constraints, as this model denotes a custom lead style. Confirm that the 12A steady-state rating aligns with the application's thermal requirements. Ensure the 0.7-ohm initial resistance meets the system's surge suppression needs without excessive voltage drop.

Inrush Current Limiters (ICL) Selection Notes

Select this component when a low-resistance path is required after startup while maintaining high surge protection. The 22mm size offers higher current handling than smaller variants. Consider the custom lead shape for specific PCB mounting orientations or clearance requirements within the enclosure.

Inrush Current Limiters (ICL) Part Context

This part belongs to the Vishay Ametherm BigAMP series of NTC thermistors. These devices are engineered for demanding industrial applications where repeated surge events occur. The series provides UL certification options for global safety compliance.

Inrush Current Limiters (ICL) Replacement Considerations

SL222R510BCJ: Higher resistance (2.5 ohms), lower current (10A). SL225R012: Higher resistance (5 ohms), higher current (12A). Verify resistance and current ratings match the original design intent.