Differences between Sectional and Bifilar Common Mode Chokes

#1

Sectional common node chokes differ from bifilar common mode chokes in construction and EMC application uses.


Bifilar common mode choke attributes:

  • Less differential impedance
  • High capacitive coupling
  • Less leakage inductance

Sectional common mode choke attributes:

  • Low capacitive coupling
  • High leakage inductance

Bifilar common mode choke EMC applications:

  • Data lines
  • Sensor lines
  • USB
  • HDMI

Sectional common mode choke EMC applications:

  • Power supply input/output filter
  • Switching power supply decoupling

For more detailed information and application use see WEbinar Powered by Digi-Key: “Differences Between Sector and Bifilar Common Mode Chokes and When To Use Each One