DKFP-D21D-D647

Common Mode Chokes Overview

The DKFP-D21D-D647 is a current compensated noise suppression choke manufactured by Schurter Inc. It features a single-channel design with through-hole termination for PCB mounting. The component provides an inductance of 47 mH per winding, supporting a maximum DC current of 0.6 A. It exhibits a maximum DC resistance of 0.42 Ohms and a self-resonant frequency of 1170 kHz. The unit operates within a temperature range of -40°C to +125°C and weighs approximately 20 g.

Common Mode Chokes Feature Summary

• Magnetically compensated design for effective noise suppression
• Compact form factor suitable for space-constrained PCB layouts
• Through-hole construction for secure board integration

Common Mode Chokes Applications

• Common mode noise filtering in electronic circuits
• Current compensated choke applications requiring low DC resistance
• Power supply input stages for EMI reduction

Common Mode Chokes Procurement Notes

Verify the specific suffix D647 against official Schurter documentation to confirm exact electrical tolerances and pinout configurations. Ensure compatibility with existing PCB footprints and thermal management requirements before procurement. Cross-reference datasheet revisions to avoid obsolete variants.

Common Mode Chokes Selection Notes

Select this component when a compact, high-inductance choke is required for low-current applications. The 0.6 A rating and 47 mH inductance make it suitable for sensitive signal lines or low-power supply rails where magnetic compensation minimizes saturation effects under load.

Common Mode Chokes Part Context

This part belongs to the DKFP series of current compensated chokes from Schurter. These components are engineered for efficient electromagnetic interference suppression in compact electronic assemblies. The series offers various inductance and current ratings to suit diverse filtering needs across industrial and consumer electronics.

Common Mode Chokes Replacement Considerations

Official substitutes include DKFP-D21D-0127 and DKFP-D22D-034K. Verify that alternative parts match the required inductance, current handling, and physical dimensions to ensure seamless integration without redesigning the PCB layout.