RE: What Diodes Are These?

Hi
I put the RM25 number into the handy ECG instant cross program available at
http://www.ecgproducts.com/
and it comes up with ECG148A which it says is a ZD-55.0Volt !watt zener.
Rod
  -----Original Message-----
  From: owner-vectorlist@synthcom.com
[mailto:owner-vectorlist@synthcom.com]On Behalf Of Rodger Boots
  Sent: Saturday, May 13, 2000 12:04 AM
  To: vectorlist@synthcom.com
  Subject: Re: VECTOR: What Diodes Are These?

  I was assuming the "94" and "95" were date codes, but the monitor probably
isn't that new (is it?).

  Paul Sommers wrote:

      Thanks Rodger.
      The second one's bands are just silver.

      I'm wondering if the 04 means just a 4004 or 5004 and the 94 means
nothing as it doesn't seem to mean anything on the RM25.

      Thanks
      Paul

      For what it's worth, the trusty Semiconductor Cross Reference Book
(fourth edition) by Prompt Books says an RM 25 crosses to an ECG5089A,
NTE5089A, or SK51V. The NTE book says an NTE5089A is a 4.7 volt 1 watt
zener diode with a 5% tolerance.

      Not sure about the second one. If you had more than two bands I'd say
read the band colors to get the value, but it doesn't sounds like there's
enough information there to go on.

      Paul Sommers wrote:

        Gang,

        Picked up a 14" Hoei X/Y at an Ops shed the other weekend and last
night recapped it and started checking components.

        Two diodes were testing bad (or maybe not even testing because of
high or low value) so I went to the schematic to find out what value they
were - and the chassis isn't a Hoei - even though it looks like the one I
have it has many more components. So it could be a copy or a redesign - all
writing in Japanese (I'll try and get it translated next week with another
monitor chassis).

        In the meantime - the two diodes have markings I don't know the
meaning of.

        They are both average looking diodes.

        #1 - Standard cathode indicator band. Marking: RM 25 with a smaller
95 under each the RM and the 25. Any ideas?

        #2 - Funny cathode indicator band or bands - top one is like a thick
dotted line and below is the standard solid band. Marking: -04 94. The -04
is bigger type than the 94.

        Anyone know what these are?

        Cheers
        Paul

      --
      Windows:
      32 bit graphical interface for a
      16 bit patch for an
      8 bit operating system written for a
      4 bit processor by a
      2 bit company that can't stand
      1 bit of competition.

  --
  Windows:

  32 bit graphical interface for a
  16 bit patch for an
  8 bit operating system written for a
  4 bit processor by a
  2 bit company that can't stand
  1 bit of competition.

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Received on Sat May 13 12:20:58 2000