A couple of weeks ago I dissassembled a Panasonic DVD-recorder and salvage some components including these little guys. I tried to figure out what these are but cannot find a datasheet by searching for the numbers on these components.
I decide to crack on of them open (sse picture above) to see what's inside. There is a coil, looks like a decoupling coil. At the first place I thought this could be useful to seperate audio channels (ground-isolator) but the ground seems to be shared between coils. There are three legs, input, output and ground (I guess).
So what it is used for or what can it used for? Is there a datasheet of these things somewhere? The partnumbers are (numbers on the case of the component):
- CO 82
- CO 83
- B1 06
- B1 09
- 0 29