SL22 12102-A

Inrush Current Limiters (ICL) Overview

The SL2212102A is a Negative Temperature Coefficient (NTC) thermistor designed as an inrush current limiter within the SL22 series. It features a nominal resistance of 120 Ohms with a tolerance of ±25% at 25°C. The component supports a maximum steady-state current of 2 Amperes 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 PCB mounting. The device operates without moisture sensitivity concerns and complies with RoHS3 standards.

Inrush Current Limiters (ICL) Feature Summary

• Utilizes NTC thermistor technology to effectively limit high inrush currents during power-up sequences.
• Provides robust protection for sensitive electronic components such as transformers and capacitors.
• Features radial kinked leads designed for secure through-hole mounting on printed circuit boards.

Inrush Current Limiters (ICL) Applications

• Protection of AC/DC power supply inputs against surge currents
• Inrush current limiting for transformer primary windings
• Surge suppression in capacitive load circuits

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific suffix designation when ordering, as variations exist between standard and modified lead configurations. Confirm that the required steady-state current does not exceed the 2 A rating for the intended application. Ensure the PCB layout accommodates the 22 mm diameter and 7.8 mm lead spacing. Check for compliance with regional environmental regulations such as RoHS3 if applicable to the final product assembly.

Inrush Current Limiters (ICL) Selection Notes

Select this component when the circuit requires a 120 Ohm initial resistance to suppress startup surges. Ensure the operating environment allows for the thermal dissipation characteristics inherent to NTC devices. Verify that the 2 A continuous current rating aligns with the maximum load requirements. Consider the physical dimensions for adequate clearance on the target PCB design.

Inrush Current Limiters (ICL) Part Context

This part belongs to the Vishay Ametherm SL22 series of inrush current limiters. These components are engineered for general-purpose circuit protection in consumer and industrial electronics. The series offers various resistance and current ratings to suit different power levels while maintaining consistent physical form factors for standardized manufacturing processes.

Inrush Current Limiters (ICL) Replacement Considerations

The MS2212102B serves as a confirmed substitute within the MegaSurge family, offering identical electrical parameters including 120 Ohms resistance and 2 A current rating. Both parts share the same 22-23 mm diameter range and radial lead configuration, ensuring mechanical compatibility in most existing designs.