VAC made amorphous metal cores and many different types of transformers using them, mainly for switchmode power supplies. I think they are now owned by Siemens.They work very well in magnetic amplifiers, which is where I have used them before in a military application. ----- Original Message ----- From: "Jan-Erik Soderholm XA (TN/PAC)" To: Sent: Tuesday, January 20, 2004 9:37 PM Subject: [EE]: Unidentified component. > Hi. > I happen to have a bag with a component that I can't > find any data on. > > It's made by "VAC", a german company. > > It's like a dice in size and form. 17 x 18 mm and > 13 mm hight (from the PCB). The upside is > marked "ZKB 472/142-80-W". Four pins at the bottom, > one in each corner and it's epoxy filled from the > bottom. I'v measured 1.20 mH between each > "pair" of pins, so it could be some kind of transformer... > > I have found other ZKB xxx components made by VAC, and > they was all kinds of "inductors", "puls transformer", > "SCR driver/interface" and such like. > > Since it gives the same mH reading on both coils (?), it > should/could be a 1:1 transformer, not ? > > Anyway, if anyone have seen something like this before, > I'd be happy to hear about it ! > > Jan-Erik. > > -- > http://www.piclist.com#nomail Going offline? Don't AutoReply us! > email listserv@mitvma.mit.edu with SET PICList DIGEST in the body > -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu