CTMSS1278F-221K

Fixed Inductors Overview

The CTMSS1278F-221K is a shielded surface-mount power inductor from Central Technologies. It features a nominal inductance of 220 µH with a maximum DC resistance of 400 mΩ and a rated current of 1.6 A.

Fixed Inductors Feature Summary

• Shielded magnetic structure to minimize electromagnetic interference
• Surface-mount design for automated assembly integration

Fixed Inductors Applications

• DC-DC converter circuits
• Power supply filtering
• General purpose power electronics

Fixed Inductors Procurement Notes

Verify the specific manufacturer datasheet for thermal derating curves and saturation current limits under varying ambient temperatures. Confirm that the 1.6 A rating aligns with your circuit's peak load requirements to ensure reliable operation without core saturation or excessive heating during continuous duty cycles.

Fixed Inductors Selection Notes

Select this component when a compact, shielded solution is required for power stages operating near 220 µH. The 400 mΩ resistance offers a balance between conduction losses and physical size. Ensure the PCB footprint matches the nonstandard package dimensions specified in the official mechanical drawings to avoid soldering defects.

Fixed Inductors Part Context

This part belongs to the CTMSS series of fixed inductors manufactured by Central Technologies. The series provides shielded options for applications requiring reduced noise emission compared to unshielded alternatives, fitting into modern high-density electronic designs.

Fixed Inductors Replacement Considerations

Direct substitutes must match the 220 µH value, 1.6 A current rating, and compatible surface-mount footprint. Verify that any alternative maintains the shielded construction to preserve EMI performance.