SL22 12102-B

Inrush Current Limiters (ICL) Overview

The Vishay Ametherm SL2212102B is a Negative Temperature Coefficient (NTC) thermistor designed as an inrush current limiter. It features a nominal resistance of 120 Ohms with a tolerance of ±25% at 25°C. The component supports a steady-state maximum current of 2 A and has a physical diameter of 22 mm (0.866 inches). It utilizes radial leads with a spacing of 7.8 mm (0.307 inches) for through-hole mounting.

Inrush Current Limiters (ICL) Feature Summary

• Provides effective suppression of high initial charging currents in electronic circuits
• Utilizes NTC thermistor technology to reduce resistance as temperature increases
• Designed for robust protection against transformer saturation and component stress

Inrush Current Limiters (ICL) Applications

• Power supply input stages
• Transformer primary circuit protection
• Capacitor bank charging control

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific suffix 'B' against the manufacturer's official documentation to confirm exact parameter tolerances and lead configurations. Ensure compatibility with through-hole PCB footprints matching the 7.8 mm lead spacing. Cross-reference the RoHS status and environmental compliance data provided in the latest datasheet before finalizing procurement specifications.

Inrush Current Limiters (ICL) Selection Notes

Select this component based on the required 120 Ohm cold resistance and 2 A continuous current rating. Evaluate the thermal dissipation requirements in the target application to ensure the device operates within safe temperature limits during repeated switching cycles. Confirm that the 22 mm diameter fits within the available mechanical space constraints of the assembly.

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 compact 22 mm disc form factor, making it suitable for various consumer and industrial electronics applications where space efficiency and reliable surge protection are critical design parameters.

Inrush Current Limiters (ICL) Replacement Considerations

The MS2212102-B is identified as a related variant within the same product family. Verify electrical equivalence and mechanical dimensions before substitution.