Connect with us

Cross for BUZ 103?

Discussion in 'General Electronics' started by unitron, Jul 5, 2003.

Scroll to continue with content
  1. unitron

    unitron Guest

    Need to replace a BUZ 103 on a motherboard. Haven't found any specs
    on it anywhere or anyone selling them. Anybody know of a cross for
  2. Robert Baer

    Robert Baer Guest

    Not listed in the NTE crossref #9 or any of my other crossref back to
    RCA SK series (1989).
    Go by size for power replacement purposes, and Ass-U-Me it is
    SandPower (silicon) and not FlowerPower (geranium - errrr - germanium);
    measure voltages and do some circuit tracing to get goo guess on NPN or
    Pick any convenient similar transistor and toss it in; works for me
    every time.

    Since you say it is on a motherboard, i am going to guess you mean a
    personal computer MB; and that leads me to suspect a TO-220 outline;
    then a NPN power transstor.
  3. unitron

    unitron Guest

    However since it's probably part of an on-board switching voltage
    regulator it might be some sort of FET instead of a bipolar, but,
    lacking an electron microscope or the knowledge to use it if I did
    have one, I have no way of knowing without finding some specs or a
    It is a TO-220. Had a scar for several months from accidentally
    touching the heat sink to which it was bolted.
  4. Robert Baer

    Robert Baer Guest

    There was a serious (design?) problem if it was *that* wonder
    it failed.
    With that history, i would toss the MB and get a new (better design?)
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day