4448R-126L

Overview

The Delevan 4448R-126L is a surface-mount coupled inductor array featuring two coils with a nominal inductance of 68 µH and a tolerance of ±15%. It operates within a temperature range of -55°C to 125°C. The component has a maximum DC resistance of 0.158 Ω per coil and supports a rated current of 1.3 A. Electrical configurations include 136 µH for series connection and 34 µH for parallel connection. The device utilizes an SMD/SMT mounting style.

Feature Summary

• Dual-coil architecture designed for high-current power applications
• Molded toroidal construction for robust physical stability
• Surface-mount technology compatible with automated PCB assembly

Applications

• DC-DC converter output filtering
• Power supply input stages
• Coupled inductor circuits in switching regulators

Procurement Notes

Verify the specific suffix designation against the manufacturer's official datasheet to confirm exact electrical tolerances and packaging specifications. Ensure compatibility with RoHS3 compliance requirements for your target market. Cross-reference the part number with authorized distributors to validate current availability and lead times before finalizing procurement plans.

Selection Notes

Select this component when designing circuits requiring dual coupled inductors with high current handling capabilities. The 68 µH value suits moderate frequency switching applications. Evaluate the 0.158 Ω DCR against thermal management constraints. Confirm that the 1.3 A rating meets the peak load requirements of the intended power stage design.

Part Context

This part belongs to the 4448(R) series of high-current molded surface-mount inductors manufactured by API Delevan. The series is characterized by its toroidal core structure, which provides efficient magnetic coupling between coils while minimizing electromagnetic interference. These components are engineered for dense power electronics layouts.

Replacement Considerations

Consult the official API Delevan cross-reference documentation for verified substitute part numbers. Do not assume functional equivalence with generic coupled inductors due to specific magnetic coupling coefficients and saturation characteristics unique to this series.