CL-90A

Inrush Current Limiters (ICL) Overview

The CL-90A is an NTC inrush current limiter from the CL Series, manufactured by Amphenol Advanced Sensors (Thermometrics). It features a nominal resistance of 120 Ohms at 25°C with a tolerance of ±25%. The component has a steady-state current rating of 2 A and a maximum operating temperature of 175°C. It operates within a minimum temperature range of -50°C. The device utilizes a glass diode package with a diameter of 0.930 inches (23.62 mm) and includes axial leads. It carries UL approval agency certification.

Inrush Current Limiters (ICL) Feature Summary

• Utilizes negative temperature coefficient technology to limit initial surge currents during power-up cycles.
• Constructed with a glass diode encapsulation for environmental protection and mechanical stability.
• Certified by UL agency for safety compliance in electrical applications.

Inrush Current Limiters (ICL) Applications

• Power supply input stages
• Motor drive circuits
• Transformer primary side protection

Inrush Current Limiters (ICL) Procurement Notes

Verify that the specific order matches the CL-90A designation to ensure correct resistance and current ratings. Confirm that the application environment remains within the specified -50°C to 175°C operating temperature range. Ensure the circuit design accounts for the 120 Ohm nominal resistance and 2 A steady-state current capability. Check for required UL certification documentation if mandated by system regulations.

Inrush Current Limiters (ICL) Selection Notes

Select this component when a robust NTC thermistor is required for inrush current suppression in high-power systems. The 120 Ohm resistance value suits applications needing significant initial impedance reduction. The 2 A current rating defines the maximum continuous load capacity. Consider the physical dimensions of the 0.930-inch diameter package for board layout constraints.

Inrush Current Limiters (ICL) Part Context

The CL-90A belongs to the CL Series of inrush current limiters produced by Amphenol Advanced Sensors (Thermometrics). This series specializes in NTC thermistors designed to protect electronic equipment from damaging surge currents. The product line focuses on reliable performance in industrial and commercial power distribution environments.

Inrush Current Limiters (ICL) Replacement Considerations

Direct substitutes must match the 120 Ohm resistance, 2 A current rating, and similar physical form factor. Verify thermal characteristics and package compatibility before integration. Cross-reference with other CL Series variants if different resistance values are acceptable.