4448R-114L

Overview

The Delevan 4448R-114L is a coupled inductor from the 4448/R series, designed for surface-mount technology (SMD/SMT) PCB mounting. It features a toroidal construction with two coils and an unshielded configuration. The nominal inductance is 10 µH with a tolerance of ±15%. Electrical specifications include a maximum DC resistance of 20 mΩ, a rated current of 672 mA in parallel connection, and 310 mA in series connection. Physical dimensions are 13.71 mm in length and width, with a height of 7.87 mm.

Feature Summary

• Dual-coil toroidal architecture optimized for high-current applications
• Surface-mount termination style for automated PCB assembly
• Unshielded design to minimize magnetic interference coupling

Applications

• Power supply filtering circuits
• DC-DC converter input/output stages
• Signal transformer arrays

Procurement Notes

Verify component authenticity through authorized Delevan distributors or certified suppliers. Confirm RoHS compliance status and manufacturing date codes against current project requirements. Ensure storage conditions adhere to moisture sensitivity level (MSL) 5A guidelines to prevent package degradation prior to reflow soldering.

Selection Notes

Select this component when dual-channel inductive filtering is required in space-constrained designs. The toroidal shape offers higher efficiency compared to standard rectangular coupled inductors. Evaluate thermal performance at the specified rated currents to ensure stable operation within the -55°C to 125°C operating temperature range.

Part Context

This part belongs to the Delevan 4448/R series of coupled inductors. The series provides various inductance values and current ratings tailored for power management applications. The 'R' suffix typically denotes specific packaging or variant characteristics within the manufacturer's lineup.

Replacement Considerations

Direct substitutes include other Delevan 4448R series variants such as 4448R-116L or 4448R-134L, provided their inductance and current ratings align with the circuit design. Cross-brand replacements require careful verification of footprint compatibility and magnetic coupling coefficients.