Hello,

I am curious about the following switching transformer
http://www.prisource.com.tw/uploads/files/82P-13031(1).pdf
On page 2, it shows the connections of windings to pins. However, there is no information of the pins 7 to 9 and 13.
I would like to know if I did not interpret something correctly or those pins are just left unconnected?

Sincerely,
BlackMelon

 

The transformer is made on a standard former so not all the pins are used. Only the ones needed.
Sometimes, the pins are even removed from the former, but usually the pin numbering will be the same as if the pins are still there.

 

The transformer is made on a standard former so not all the pins are used. Only the ones needed.
Sometimes, the pins are even removed from the former, but usually the pin numbering will be the same as if the pins are still there.

Thank you. This is very helpful.