What is the difference between common mode and differential mode?

What is differential insertion loss?

What is common mode attenuation?

What is Scd21?

Can common impedance be considered impedance that affects only AC (resonant signals)?

Is it okay to use a common mode filter / choke if a current larger than its rated current is applied momentarily?

What is the difference between common mode impedance, differential mode impedance and characteristic impedance?

What is the cutoff frequency?

Which voltage location is being referred to for the rated voltage of a common mode filter (common mode choke)?

At which frequency is the "impedance," which is the representative characteristic of common mode filters / chokes, defined?

What is the defining condition for the rated current of common mode filters / chokes?

Where is the characteristic impedance described?

Where can I check the frequency characteristics of the common mode impedance?

Where can I check the insertion loss?