Re: What Diodes Are These?

Oh crap. The ECG148A is a 55 volt part. The numbers I gave
(ECG5089A, NTE5089A, or SK51V) are 51 volt parts (NOT THE
5.1 VOLTS I said earlier). I read the chart in the NTE book
wrong.

Has to make you wonder if the RM25 wasn't something weird
like a 53 volt zener.

I'm sending Paul a direct email of this, hopefully before he
tries a 5.1 volt part where there should be a 51 volt part.

Rod Dooley wrote:

> HiI 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.
>
>

--
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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