Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!world!jon_sree From: jon_sree@world.std.com (Jon Sreekanth) Newsgroups: sci.electronics Subject: Re: Transistor leakage current ? Message-ID: Date: 15 Feb 91 22:47:25 GMT References: <5170103@hplsla.HP.COM> Sender: jon_sree@world.std.com (Jon Sreekanth) Organization: The World Lines: 24 In-Reply-To: tomb@hplsla.HP.COM's message of 14 Feb 91 23:47:39 GMT In article <5170103@hplsla.HP.COM> tomb@hplsla.HP.COM (Tom Bruhns) writes: jon_sree@world.std.com (Jon Sreekanth) writes: >My question is : when I turn off the transistor, what is the leakage >current drawn from the + 100V supply ? ~.7V negative). Or, if you really hold the left end of the 1k to 0 volts, you will get most of the base leakage current through it and the collector leakage will be essentially Icbo. Still, do be sure the Vceo is at least 100 volts...(I don't have a book in front of me). Thanks. That seems to settle it. I'll put the circuit together in the next few days. Vcbo and Vceo are quoted as 300V. Regards, / Jon Sreekanth Assabet Valley Microsystems Fax and PC products 346 Lincoln St #722, Marlboro, MA 01752 508-562-0722 jon_sree@world.std.com