CTLQ2220CF-472M

Fixed Inductors Overview

The CTLQ2220CF-472M is a fixed power inductor manufactured by Central Technologies, designed for surface-mount device (SMD) applications. It features an unshielded wirewound construction with a ceramic core and offers an inductance of 4.7 mH with a tolerance of ±20%. The component has a maximum DC resistance of 61.04 Ohms and a rated current of 70 mA. It utilizes standard SMD/SMT terminations and is housed in a nonstandard package.

Fixed Inductors Feature Summary

• Unshielded wirewound design suitable for general power filtering
• Surface-mount configuration for automated assembly integration
• High inductance value optimized for low-frequency energy storage

Fixed Inductors Applications

• General-purpose power supply filtering circuits
• Signal processing input/output stages
• Low-current DC-DC converter output chokes

Fixed Inductors Procurement Notes

Verify the specific manufacturer datasheet to confirm thermal ratings and saturation characteristics before finalizing the design. Ensure that the 70 mA rated current aligns with the peak load requirements of the target application circuit to prevent performance degradation or component failure under stress conditions.

Fixed Inductors Selection Notes

Select this component when a high inductance value is required in a compact surface-mount form factor. Consider the relatively low rated current and high DC resistance when designing for efficiency-sensitive power paths. Evaluate the unshielded nature of the inductor regarding potential electromagnetic interference coupling with nearby sensitive traces.

Fixed Inductors Part Context

This part belongs to the CTLQ series of fixed power inductors from Central Technologies. It is categorized as an unshielded wirewound inductor, distinct from shielded variants which offer different magnetic containment properties. The series supports various inductance values tailored for different power management needs.

Fixed Inductors Replacement Considerations

Direct substitutes must match the 4.7 mH inductance, 70 mA current rating, and 61.04 Ohm DCR within acceptable tolerances. Verify footprint compatibility and thermal performance if replacing with components from other manufacturers.