4448R-110M

Overview

The Delevan 4448R-110M is a coupled power inductor from the 4448/R series, designed for surface-mount technology (SMT) applications. It features a toroidal core construction with a molded package. The component provides an inductance of 5 µH per winding with a tolerance of ±20%. In parallel configuration, the total inductance is 5 µH, while in series configuration, it reaches 20 µH. The maximum DC current rating is 4.4 A, and the maximum DC resistance is 14 mΩ. Physical dimensions are 13.71 mm in length, 13.71 mm in width, and 7.87 mm in height.

Feature Summary

• Toroidal coupled inductor design optimized for high-current SMT mounting
• Molded package construction for mechanical stability and environmental protection
• Dual-winding capability supporting both parallel and series electrical configurations

Applications

• Power supply output filtering
• DC-DC converter input/output stages
• EMI suppression in high-current circuits

Procurement Notes

Verify the specific suffix 'M' against the manufacturer's latest datasheet to confirm exact tolerance and packaging specifications. Ensure compatibility with PCB footprint dimensions of 13.71 mm x 13.71 mm. Confirm RoHS compliance status as indicated in official documentation before integration into regulated assemblies.

Selection Notes

Select this component when high current handling up to 4.4 A is required in a compact surface-mount form factor. The toroidal geometry offers lower electromagnetic interference compared to open-core designs. Consider the 14 mΩ DCR for efficiency calculations in low-voltage, high-current power delivery networks.

Part Context

This part belongs to the Delevan 4448/R series of coupled inductors. These components are engineered for robust performance in power electronics. The series utilizes toroidal cores to maximize inductance density while minimizing external magnetic field leakage, suitable for dense PCB layouts.

Replacement Considerations

Cross-reference with other Delevan 4448 series variants for different inductance values. Verify pinout and thermal characteristics when substituting with similar toroidal coupled inductors from other manufacturers.