CL-190B

Inrush Current Limiters (ICL) Overview

The CL-190B is an inrush current limiter (ICL) from the CL series, manufactured by Amphenol Advanced Sensors. It features a nominal resistance of 25 Ohms with a tolerance of ±25% at 25°C. The device supports a steady-state current of 2.4 A and has a diameter of 0.550 inches (13.97 mm). It utilizes straight leads with a spacing of 0.328 inches (8.33 mm). The component is RoHS compliant and carries UL certification.

Inrush Current Limiters (ICL) Feature Summary

• Provides effective protection against high initial surge currents during power-up cycles
• Utilizes negative temperature coefficient characteristics to reduce resistance as it heats up
• Features a robust glass encapsulation for environmental stability

Inrush Current Limiters (ICL) Applications

• Power supply input stages
• Transformer primary circuits
• Capacitive load protection

Inrush Current Limiters (ICL) Procurement Notes

Verify that the specific part number matches the required electrical specifications, particularly the 25 Ohm resistance and 2.4 A current rating. Confirm that the lead configuration and physical dimensions are compatible with the target PCB layout. Ensure compliance with relevant safety certifications such as UL requirements for the intended application environment.

Inrush Current Limiters (ICL) Selection Notes

Select this component when designing circuits requiring passive surge suppression without active control mechanisms. Consider the thermal dissipation capabilities and the time-current characteristics relative to the load profile. Evaluate the steady-state power handling to ensure the device does not overheat during normal operation after the initial inrush period subsides.

Inrush Current Limiters (ICL) Part Context

This component belongs to the CL series of inrush current limiters, designed specifically for protecting electronic equipment from damaging current spikes. These devices are commonly used in industrial and consumer electronics where reliable power initialization is critical for system longevity and performance stability.

Inrush Current Limiters (ICL) Replacement Considerations

Cross-reference with other CL-series variants or equivalent ICL components from different manufacturers. Verify that substitute parts match the resistance value, current rating, and physical footprint to ensure seamless integration into existing designs.