744873221

Arrays, Signal Transformers Overview

The Würth Elektronik 744873221 is a shielded two-coil inductor array from the WE-DD series, designed for surface-mount applications. It features a nominal inductance of 220 µH with a ±20% tolerance. The component measures 12.50mm x 12.50mm x 8.50mm and operates within a temperature range of -40°C to 125°C. Electrical specifications include a maximum DC resistance of 580 mΩ in parallel configuration and 910 mA rated current in parallel. In series connection, it provides 440 µH inductance with an 800 mA saturation current.

Arrays, Signal Transformers Feature Summary

• Shielded two-coil design suitable for coupled inductor applications
• Surface-mount construction with non-standard package dimensions
• Capable of series or parallel coil configurations

Arrays, Signal Transformers Applications

• SEPIC converter circuits
• Flyback converter designs
• Multi-output buck converter topologies

Arrays, Signal Transformers Procurement Notes

Verify the specific ordering suffix against the manufacturer's datasheet to ensure correct packaging type, such as tape and reel or cut tape. Confirm that the component meets RoHS compliance requirements for your assembly process. Cross-reference the part number with official Würth Elektronik documentation to validate electrical parameters before integration into production schedules.

Arrays, Signal Transformers Selection Notes

Select this component when a coupled inductor array is required for power conversion stages. Evaluate the thermal performance based on the specified operating temperature range of -40°C to 125°C. Ensure the footprint dimensions of 12.50mm x 12.50mm fit the available PCB space. Consider the magnetic coupling characteristics if utilizing the coils in a shared energy transfer application.

Arrays, Signal Transformers Part Context

This part belongs to the WE-DD series of power chokes manufactured by Würth Elektronik. The series focuses on shielded inductor arrays optimized for compact power supply designs. These components are engineered to provide high efficiency and low electromagnetic interference in modern electronic systems requiring precise magnetic coupling between multiple windings.

Arrays, Signal Transformers Replacement Considerations

Consult the official Würth Elektronik datasheet for verified substitute part numbers within the WE-DD series. Ensure any replacement maintains identical pinout compatibility and physical dimensions. Verify that alternative components meet the same electrical specifications for inductance, current ratings, and DC resistance.