100MFD 55V

From: Don Maslin <donm_at_cts.com>
Date: Thu Dec 4 17:23:22 2003

On Thu, 4 Dec 2003, Joe wrote:

> Motor Start or Motor Run capacitors can be hard to find. Even the
> companies tht deal with motors and pumps don't ususually carry them.
> Fortunately there's a surplus company (Skycraft) here in town (Orlando)
> that carries lots of this kind of stuff. If you send me an E-mail with the
> dimensions and how it mounts I'll see what I can find.
>
> Joe

Motor start/run capacitors are pretty commonly available at stores
which deal in parts for the appliance an heating & ventilating
trades. They may not be the same size as yours was, and will
likely have spade lug contacts vice soldered, but I'd bet that you
can find something of a suitable rating.

                                                - don

> At 03:05 AM 12/4/03 -0500, you wrote:
> >On Wed, Dec 03, 2003 at 10:48:35PM -0800, vrs wrote:
> >> Hi,
> >>
> >> I've got an electrolytic I pulled from my TU56 drive because it had a big
> >> crusty electrolyte extrusion through the vent plug in the top.
> >
> >Ewwww.
> >
> >> .... "SPRAGUE 100 MFD 55V - 60CY A5030". It is 2" in diameter and just
> >> over 4" tall, with two solder lugs on top. I think they are connected to
> >> the drive motors.
> >
> >Yes. The motor start capacitors.
> >
> >> I have looked for replacement electrolytic, but they all have way more
> >> capacitance or way more voltage rating, and are nowhere near the right
> >> physical dimensions.
> >
> >Voltages that are "too high" are no problem. Too low is a big no-no. You
> >want something with a fairly close capacitance match, because too little
> >would probably increase the startup time on the motor and might cause issues
> >if too far off.
> >
> >> Is there a source for exact replacements?
> >
> >Not that I am aware of.
> >
> >There are others (David Gesswein?) who have had to replace TU-56 motor caps.
> >I have not yet had to do so (but it's been years since I fired mine up, since
> >I've only recently repaird my -8/e PSU). My personal priority would have to
> >be voltage and capacitance over physical size.
> >
> >A caveat - these are not filter caps. They are motor start caps (or they
> >might be "motor run" caps. They will be hard to find an appropriate sub
> >for.
> >
> >-ethan
> >
> >--
> >Ethan Dicks, A-130-S Current South Pole Weather at 04-Dec-2003 08:00 Z
> >South Pole Station
> >PSC 468 Box 400 Temp -17.7 F (-27.6 C) Windchill -53.2 F
> (-47.4 C)
> >APO AP 96598 Wind 12 kts Grid 082 Barometer 692.8 mb (10147.
> ft)
> >
> >Ethan.Dicks_at_amanda.spole.gov
> http://penguincentral.com/penguincentral.html
> >
>
>
Received on Thu Dec 04 2003 - 17:23:22 GMT

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