SV: 100MFD 55V

From: Mattis Lind <mattis_at_mattisborgen.org>
Date: Thu Dec 4 02:08:11 2003

Hi,

These are oilfilled AC capacitors. Not an electrolytic capacitor. They are
usually used together with the motor. Phase-shift capacitor for example to
generate a second phase on a single phase system.

Do no replace with an electrolytic capacitor. Electrolytic capacitors are DC
only.

Old DEC equipment contain a lot of them. It is not uncommon to find such
capacitors with PCB (Polyclorinathed Bifenyles, if my speeling is correct)
in them. Take care if one of these goes into smoke. Burnt PCB produces
really lethal dioxines.

/Mattis

-----Ursprungligt meddelande-----
Fr?n: cctalk-bounces_at_classiccmp.org
[mailto:cctalk-bounces_at_classiccmp.org]F?r vrs
Skickat: den 4 december 2003 07:49
Till: General Discussion: On-Topic and Off-Topic Posts
?mne: 100MFD 55V


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. The
capacitor is marked "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.

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. Is there a source for exact replacements?

If not, should I just get one with the right diameter for the mounting clamp
and the right capacitance, but some huge voltage rating, or is the voltage
rating more important and I should beef up the capacitance instead? Or do I
have to get both those right, and substitute a little dinky device?

Thanks!

    Vince
Received on Thu Dec 04 2003 - 02:08:11 GMT