SL08 22101

Inrush Current Limiters (ICL) Overview

The Vishay Ametherm SL08 22101 is a negative temperature coefficient (NTC) thermistor designed as an inrush current limiter. It features a nominal cold resistance of 220 ohms with a tolerance of ±25%. The component supports a steady-state current rating of 1 A and operates within voltage ratings of 115 VAC and 230 VAC. Physically, it has a diameter of 8 mm (0.315 inches) and utilizes radial leads for PCB mounting.

Inrush Current Limiters (ICL) Feature Summary

• Utilizes NTC thermistor technology to dynamically limit high initial surge currents during power-up sequences.
• Provides automatic reset functionality by transitioning to low resistance after the initial transient period.
• Constructed with radial leads suitable for standard through-hole PCB assembly processes.

Inrush Current Limiters (ICL) Applications

• Protection of switching power supplies against input surge currents
• Limiting inrush current in AC/DC converter circuits
• Surge suppression in general electronic equipment power inputs

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific ordering suffix to ensure the correct resistance tolerance and lead configuration match the design requirements. Confirm that the steady-state current rating of 1 A aligns with the operational load. Check for RoHS compliance status if environmental regulations apply to the final product assembly.

Inrush Current Limiters (ICL) Selection Notes

Select this component when the circuit requires a 220-ohm initial impedance to manage startup surges. Ensure the maximum allowable steady-state current does not exceed 1 A to prevent thermal damage. Validate that the physical dimensions fit the available PCB footprint and that the voltage rating meets the system's peak operating conditions.

Inrush Current Limiters (ICL) Part Context

This part belongs to the miniAMP SL08 series of inrush current limiters from Vishay Ametherm. The series offers various resistance and current ratings tailored for different power levels. The SL08 designation indicates an 8 mm diameter package size, distinguishing it from smaller or larger variants within the broader product family.

Inrush Current Limiters (ICL) Replacement Considerations

The SL08 22101-A is documented as a practical replacement option. Verify that substitute parts maintain equivalent cold resistance and steady-state current capabilities to ensure circuit protection integrity.