forum of ecadata.de

Inquiry from http://www.ecadata.de
Type: SF 51221
Prod: ?
Case: TO-92
Device: transistor
Info: Bang and Olufsen power amp BEOMASTER 4400
Search for data sheet: Data Sheet or alternative part #
Inquiry from: Kevin Nielsen in Company: Sound Investments

Are you sure it is a transistor, we have a 2sf512 in the data base similear to 2sf511, but it is a thyristor.
Please send us a photo, if you have a service manual please send a photo of this part too.
https://www.ecadata.de/ddv/mysucheca.php?ECA_KEY=2SF511