CPFC54-250C

Common Mode Chokes Overview

The CPFC54-250C is a surface-mount DC common mode choke coil manufactured by Sumida. It features an inductance of 25 µH at 100 kHz and a maximum DC resistance (DCR) of 130 mΩ. The component has a rated current of 700 mA and withstands 250 VDC. Its physical dimensions are 9.5 mm in length, 5.65 mm in width, and 4.9 mm in height.

Common Mode Chokes Feature Summary

• Provides common mode noise suppression for two-line circuits
• Designed for surface mount assembly on printed circuit boards
• Constructed with a ferrite core for effective electromagnetic interference filtering

Common Mode Chokes Applications

• Power line filtering in electronic devices
• Data line protection against common mode noise
• Signal integrity enhancement in mixed-signal circuits

Common Mode Chokes Procurement Notes

Verify the specific electrical parameters, particularly inductance tolerance and DCR values, against the official Sumida datasheet before integration. Confirm that the 250 VDC withstand voltage rating meets the system's safety requirements. Ensure the surface mount footprint matches the PCB layout design to prevent mechanical stress during operation.

Common Mode Chokes Selection Notes

Select this component when a compact, low-profile common mode choke is required for high-frequency noise suppression. The 700 mA rated current makes it suitable for low-power signal lines or auxiliary power rails. Consider the 4.9 mm height constraint for space-sensitive applications where standard through-hole chokes cannot fit.

Common Mode Chokes Part Context

This part belongs to the CPFC54 series of DC common mode chokes from Sumida. The series offers various inductance values tailored for different filtering needs while maintaining a consistent small form factor. These components are designed to meet modern electronics demands for miniaturization and efficient EMI reduction in dense circuit layouts.

Common Mode Chokes Replacement Considerations

Direct substitutes include other CPFC54 series variants such as CPFC54-251C or CPFC54-110C if inductance differences are acceptable. Verify pin compatibility and thermal characteristics when considering alternative manufacturers' common mode chokes with similar dimensional constraints.