Re: U90 motor suppression capacitor
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Hi there, The X1Y2 class capacitor in the datasheet can be purchased from this ebay seller:? The seller is located in Gl?shuette, Germany.? The price is ~US$6. I'm not sure what the shipping charges are from Gl?shuette, or if the seller will ship internationally.? Something to consider is that this is an integrated package of 3 capacitors. It has a single X1 safety rated capacitor configured with two Y2 safety rated capacitors. You can make this yourself. There should be a brief tutorial or image showing this somewhere in the files, as I remember. I've constructed several of these over the years when rebuilding U90 and other motors. Take care to connect the L/N? The basic circuit looks like this: ?? The application, in our case, is the motor. One of the group members has installed a package X1Y2 capacitor outside of the case, with the Line and Neutral leads attached to the motor brushes and the ground attached to the motor case. Not optimal for safety reasons, at least what is visible in the photo, but hey, I'm pretty sure the user understands the electrical shock hazard.? Brian Gates wrote about the suppression capacitor in a 2019 Unimat group post: Lathes.UK also covers this topic, showing the X1Y2 capacitor in circuit: Doug Feistamel covers this topic as well: Robert Undine has built a DIY X1Y2 package for the U90 as posted in the photos section: Digikey, Mouser and other US electronic parts vendors can supply you the X1 and Y2 safety rated caps in pretty much any value you need. They'll be cheap...usually less than $1.50-$3.00, but the shipping might seem expensive. The upside to buying from a big US parts supplier is that you'll get it very quickly. Sometimes the same day. Hope this helps. Cheers, James
On Wednesday, June 21, 2023 at 05:44:56 AM PDT, John K5MO <johnk5mo@...> wrote:
I would be sure to replace that cap with one that is specifically rated to be placed across the mains..? The PN below is available from Mouser, etc. 0.01 uf + 2x 2500 pf @ 220V HPF 65.8
On Wed, Jun 21, 2023 at 8:27?AM Keith S. Angus <keithsangus@...> wrote: I searched again on the part number -?MIFLEX KSPPZ-10-2. That leads to lots of suppliers in many countries, but this site gets you to the data sheet: |