DKFP-A21A-1N1O

Common Mode Chokes Overview

The DKFP-A21A-1N1O is a current compensated noise suppression choke from the Schurter DKFP series, designed for through-hole PCB mounting. It features a single channel configuration with an inductance of 10 mH and a maximum DC current rating of 1.5 A. The component exhibits a typical maximum DC resistance of 94 mOhms and a self-resonant frequency of 1 MHz. Operating within a temperature range of -40°C to +125°C, it measures 23 mm in length, 22 mm in width, and 14 mm in height.

Common Mode Chokes Feature Summary

• Provides effective common mode noise suppression through current compensated magnetic design
• Supports reliable operation across extended industrial temperature ranges
• Enables compact integration via standard through-hole termination style

Common Mode Chokes Applications

• Electromagnetic interference filtering in power supply input stages
• Noise reduction in medical equipment power circuits
• Signal integrity protection in industrial control systems

Common Mode Chokes Procurement Notes

Verify the specific suffix against official Schurter documentation to confirm electrical parameters. Ensure the ordering code matches the required inductance and current ratings. Confirm package dimensions align with PCB layout constraints before finalizing procurement decisions.

Common Mode Chokes Selection Notes

Select this component when high inductance is required at moderate current levels. The 1.5 A rating suits applications where space is limited but significant noise attenuation is necessary. Verify thermal management requirements given the unshielded construction and ambient operating conditions.

Common Mode Chokes Part Context

This part belongs to the DKFP family of current compensated chokes. These components utilize a unique winding technique to minimize leakage inductance while maximizing common mode impedance. The series offers various inductance values tailored for different EMC compliance needs in compact form factors.

Common Mode Chokes Replacement Considerations

Consult Schurter technical support for verified cross-references. Ensure any substitute maintains equivalent current compensation characteristics and physical footprint compatibility.