4448R-18L

Overview

The Delevan 4448R-18L is a surface-mount coupled inductor array featuring two coils with a nominal inductance of 20 µH and a tolerance of ±15%. It exhibits a maximum DC resistance of 0.085 Ω per coil. The component measures 13.71 mm in length, 13.71 mm in width, and 7.87 mm in height. Designed for high-current applications, it utilizes a toroidal core structure suitable for PCB mounting.

Feature Summary

• Dual-coil configuration enabling series or parallel circuit integration
• High-current capability supported by low DC resistance design
• Surface-mount form factor optimized for automated assembly

Applications

• Power filtering in electronic circuits
• Energy storage components
• EMI-sensitive circuit protection

Procurement Notes

Verify the specific suffix designation against official API Delevan documentation to confirm exact electrical tolerances and current ratings. Ensure the ordering part number matches the required inductance value and physical package dimensions for your PCB layout. Confirm RoHS compliance status through the manufacturer's latest certification records before finalizing procurement.

Selection Notes

Select this component when a compact, dual-coil solution is required for power management applications. The toroidal geometry supports efficient magnetic coupling while minimizing external interference. Evaluate the 0.085 Ω resistance against thermal constraints and ensure the 20 µH inductance aligns with the target circuit's frequency response requirements.

Part Context

This component belongs to the 4448/R series of coupled inductors manufactured by API Delevan. The series is characterized by molded surface-mount packages designed for high-current power applications. These devices are engineered to provide reliable performance in space-constrained environments requiring precise inductive characteristics.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify compatibility with alternative components by matching inductance, current rating, and physical footprint specifications.