SL220R712B

Inrush Current Limiters (ICL) Overview

The SL220R712B is a negative temperature coefficient (NTC) thermistor functioning as an inrush current limiter within the SL22 series. It features a 22 mm disc diameter and provides a nominal resistance of 0.7 ohms at 25°C with a tolerance of ±25%. The component supports a steady-state current rating of 12 A and withstands voltages up to 265 VAC. Designed for through-hole mounting, it utilizes radial leads with a 7.8 mm spacing and 1 mm wire diameter.

Inrush Current Limiters (ICL) Feature Summary

• Functions as an inrush current limiter to protect electronic circuits from high startup currents
• Utilizes NTC thermistor technology to provide low resistance during normal operation after initial cooling period
• Constructed for robust through-hole PCB mounting applications

Inrush Current Limiters (ICL) Applications

• Power supply input stages
• Motor drive protection circuits
• Transformer inrush limiting

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific suffix designation against official Vishay documentation to confirm exact electrical tolerances and thermal characteristics. Ensure the selected variant matches the required voltage and current ratings for the target application circuit. Cross-reference the datasheet for precise maximum energy absorption capabilities.

Inrush Current Limiters (ICL) Selection Notes

Select this component based on the required steady-state current handling and initial resistance values. Consider the physical dimensions and lead spacing compatibility with the printed circuit board layout. Evaluate the thermal environment to ensure the device operates within its specified temperature range without premature degradation.

Inrush Current Limiters (ICL) Part Context

This part 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 consumer electronics and industrial equipment to mitigate stress on rectifiers and capacitors during power-up sequences.

Inrush Current Limiters (ICL) Replacement Considerations

Consult official substitution lists for equivalent parts with matching 22 mm form factors and similar electrical parameters. Verify that alternative components meet the same UL and CSA safety certifications required for the end product.