4448R-134L

Overview

The Delevan 4448R-134L is a non-shielded, two-coil inductor array designed for surface-mount applications. It features a toroidal core construction with an overall footprint of 13.46mm by 13.46mm and a height of 7.87mm. The component provides an inductance of 1.2 mH when connected in series and 300 µH in parallel, with a tolerance of ±15%. Electrical characteristics include a maximum DC resistance of 2.688 Ω in series and 672 mΩ in parallel. Current ratings are specified at 310 mA for series operation and 620 mA for parallel configurations.

Feature Summary

• Dual-coil configuration allowing flexible series or parallel circuit integration
• Non-shielded toroidal design suitable for general-purpose filtering
• Surface-mount package optimized for automated PCB assembly

Applications

• DC-DC converter input/output filtering
• Power supply noise suppression circuits
• Signal conditioning in electronic assemblies

Procurement Notes

Verify the specific suffix and packaging format against the manufacturer's current datasheet before ordering. Confirm that the required inductance value matches the intended series or parallel connection mode for your circuit design. Ensure compatibility with standard reflow soldering profiles and check for any updated RoHS compliance documentation to meet regional regulatory requirements.

Selection Notes

Select this component when a dual-inductor solution is required within a compact surface-mount footprint. The non-shielded nature may necessitate careful layout planning to minimize electromagnetic interference with adjacent sensitive traces. Evaluate thermal management requirements based on the rated current limits and expected ambient operating temperatures.

Part Context

This part belongs to the 4448R series of coupled inductors manufactured by Delevan. The series utilizes toroidal windings to provide stable inductance values in a robust, non-shielded form factor. These components are typically used in power electronics where space efficiency and dual-winding functionality are prioritized over magnetic shielding.

Replacement Considerations

No publicly confirmed substitute part numbers are available in the provided documentation.