4448R-02M

Overview

The Delevan 4448R-02M is a coupled inductor from the 4448/R series, designed for surface-mount technology (SMT) applications. It features a toroidal core construction with two coils and no shielding. The component offers an inductance of 470 nH in parallel connection and 2 µH in series connection, with a tolerance of ±20%. It supports a maximum DC current of 7.9 A in parallel configuration and 3.95 A in series. The maximum DC resistance is 5 mΩ in parallel and 20 mΩ in series. The physical dimensions are 13.46 mm in length, 13.46 mm in width, and 7.87 mm in height.

Feature Summary

• Dual-coil coupled inductor array with toroidal core construction
• High-current capability suitable for power supply filtering
• Surface-mount design for automated PCB assembly

Applications

• Power supply input/output filtering
• DC-DC converter circuits
• Signal integrity management in high-speed digital systems

Procurement Notes

Verify RoHS compliance status as sources indicate conflicting information regarding lead content and REACH certification. Confirm package type matches application requirements, as some listings specify reel packaging while others note non-standard casing. Ensure supplier documentation aligns with specific manufacturing batch requirements for critical designs.

Selection Notes

Select this component when dual-coupled inductance is required in a compact SMT footprint. The low DC resistance supports high-efficiency power conversion. Consider thermal performance under continuous load conditions given the high current ratings. Verify mechanical fit within the designated PCB area due to the specific rectangular outline dimensions.

Part Context

This part belongs to the Delevan 4448/R series of coupled inductors. The series is characterized by molded or toroidal constructions offering high current handling capabilities. These components are typically used in power electronics where magnetic coupling between windings is beneficial for noise reduction or voltage transformation.

Replacement Considerations

Direct substitutes include other Delevan parts within the 4448 series with similar inductance values, such as the 4448-104M or 4448-112M, though electrical parameters differ. Cross-brand replacements require matching inductance, current rating, and physical dimensions.