CL-140

Inrush Current Limiters (ICL) Overview

The CL-140 is an NTC inrush current limiter from the CL series, designed for switching power supplies and motor control. It features a nominal resistance of 50 ohms with ±25% tolerance at 25°C. The device supports a steady-state current rating of 1.1A and has a maximum peak current capacity of 1.1A. It operates within a temperature range of -50°C to +175°C. The component utilizes a disc package with a diameter of 11.4mm (0.449 inches) and a lead spacing of 6.35mm (0.250 inches).

Inrush Current Limiters (ICL) Feature Summary

• UL approved for safety compliance.
• Wide operating temperature range suitable for industrial environments.
• Disc form factor for radial PCB mounting.

Inrush Current Limiters (ICL) Applications

• Switching power supplies
• Fluorescent lamps
• Inverters
• Motors

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific suffix variant (e.g., CL-140A) against the required lead spacing and packaging type. Confirm UL certification status and RoHS compliance through official datasheets before integration. Ensure the steady-state current rating matches the circuit's operational requirements to prevent thermal failure.

Inrush Current Limiters (ICL) Selection Notes

Select this component when a robust NTC limiter is needed for moderate current applications up to 1.1A. The 50-ohm baseline resistance provides effective surge suppression. Consider the 11.4mm diameter for board space constraints. Verify that the -50°C to +175°C range covers the intended environmental conditions.

Inrush Current Limiters (ICL) Part Context

Part of the Amphenol Advanced Sensors CL series, which specializes in inrush current limiting devices. These components protect sensitive electronics from high initial charging currents. The CL-140 represents a standard disc-type solution widely used in general-purpose power conversion systems.

Inrush Current Limiters (ICL) Replacement Considerations

CL-140A shares identical electrical specifications including 50 ohms resistance and 1.1A rating. Verify physical dimensions and lead spacing compatibility before substitution. Check for any differences in packaging or certification markings between variants.