100uh 3a Toroidal Inductor Common Mode Choke

The principle of 100uh 3a Toroidal Inductor Common Mode Choke, the magnetic field produced by coil will block the magnetic field produced by current because of self-inductance, thus delaying the passage of current. The "low frequency choke coil" prevents AC from passing because the delay time is longer than the time required for AC to change direction. The delay time of "high frequency choke coil" is less than that of low frequency alternating current changing direction, but more than that of high frequency alternating current changing direction, so low frequency alternating current can pass and high frequency alternating current can not pass.