Common mode choke selection beginners question

Status
Not open for further replies.
K

ku637

Advanced Member level 4
Joined
Apr 6, 2011
Messages
116
Helped
2
Reputation
4
Reaction score
3
Trophy points
1,298
Activity points
2,551
Hi,

While searching for common mode choke in AC line applications, found two types of description for the devices..

Some manufacturers list

1) Impedance versus Frequency (in Ohms)

some others

2) Insertion loss versus Frequency. ( in dB)

How do i convert the Impedance into dB??

Thanks for any help
 

I'd think a factor of 10 at impedance corresponds to 20 dB insertion loss.
 
Reactions: ku637

    K

    ku637

    Points: 2
    Helpful Answer Positive Rating
Insertion loss assumes some particular line impedance load (often 50 ohms). Using that you can convert impedance into insertion loss.
 
Reactions: ku637

    K

    ku637

    Points: 2
    Helpful Answer Positive Rating
Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…