EMC Question of the Week: July 7, 2025

Illustration of a common-mode choke connected directly to a connector with no Y-capacitors in between

If a board-mounted common-mode choke connects directly to the connector pins, with no Y-capacitors in between, then the common-mode choke should be  

  1. bifilar wound
  2. low loss
  3. lossy
  4. removed

Reveal Question of the Week - Answer 250707