capacitor

Discussion in 'Propulsion' started by Powder Monkey, Apr 15, 2008.

  1. Powder Monkey

    Powder Monkey Active Member

    Joined:
    Dec 18, 2006
    Posts:
    1,394
    I'm a carpenter not an electrician is this a good one
    For drive motors and dose one (I would think so) go onto pump as well?


    0.1µF 50V 10% PC-Mount Capacitor
    0.1 microfarad
    50VDC
    Tolerance: ±10%
    General Features

    Model 272-1069


    Product Type Metal Film Capacitors


    Body Material Multi


    Fits What

    Model 272-1069


    Miscellaneous Features

    Min Operating Temperature -40 Fahrenheit


    Max Operating Temperature 85 Fahrenheit


    Supported Languages English
     
  2. Powder Monkey

    Powder Monkey Active Member

    Joined:
    Dec 18, 2006
    Posts:
    1,394
    I feel like major Tom is anybody out there oh I get it this is like a magic lamp I already got all my wishes damit I wished I had known my last wish would have been for more wishes [;)]
     
  3. rowboat captain

    rowboat captain Member

    Joined:
    Sep 13, 2007
    Posts:
    117
    the type you want to use are the disk kind. not the metal can type. should be on all motors. one from positive to negitive and one fromthe positve to the motor case and one more from neg to motor case. + to - 4.7 u I think and fron - to case .1u same for + to case.
     
  4. Tugboat

    Tugboat Facilitator RCWC Staff Admiral (Supporter)

    Joined:
    Jan 10, 2007
    Posts:
    8,298
    Location:
    Statesboro, GA
    Almost any disk capacitor will be fine for our application, as long as the voltage rating is high enough (say, >25V)
     
  5. JohnmCA72

    JohnmCA72 Member

    Joined:
    Nov 10, 2006
    Posts:
    681
    The shape of the case is meaningless.

    Avoid polyester caps. They can explode spectacularly when subjected to excessive voltage.

    Avoid any type of polarized cap (i.e. with a '+' or '-' sign on it).

    No need to be overly precise about a value. 0.1 µF works fine. Allow plenty of "headroom". I usually use caps that are rated at 6x-7x my supply voltage, or more.

    JM
     
  6. Powder Monkey

    Powder Monkey Active Member

    Joined:
    Dec 18, 2006
    Posts:
    1,394
    Is there any one that uses Radio Shack capacitors that can just give me a # maybe I went there tonight and walked out with a headache?[V]
     
  7. JohnmCA72

    JohnmCA72 Member

    Joined:
    Nov 10, 2006
    Posts:
    681
    I think I've used all of these at 1 time or another:

    http://www.radioshack.com/product/index.jsp?productId=2103630&cp=&sr=1&origkw=capacitor&kw=capacitor&parentPage=search
    http://www.radioshack.com/product/index.jsp?productId=2062365&cp=&pg=2&sr=1&origkw=capacitor&kw=capacitor&parentPage=search
    http://www.radioshack.com/product/index.jsp?productId=2102589&cp=&pg=2&sr=1&origkw=capacitor&kw=capacitor&parentPage=search

    Now, whether any happen to be in stock right now at your local store is another matter...

    JM
     
  8. Powder Monkey

    Powder Monkey Active Member

    Joined:
    Dec 18, 2006
    Posts:
    1,394
    Thank you thank you I actually went in to buy the first 1 the green one held each one in my hands and the more I tried to guess what one to use the more confused I got and decided to crawl back here and ask thank you I for your assistance [^]
     
  9. Powder Monkey

    Powder Monkey Active Member

    Joined:
    Dec 18, 2006
    Posts:
    1,394
    One last thought after reading the where to how the hell do you still have room to solder on the wires [xx(]
     
  10. JohnmCA72

    JohnmCA72 Member

    Joined:
    Nov 10, 2006
    Posts:
    681
    I usually add a pair of spade lug terminals to the motor. 2 cap leads just doesn't leave enough left to plug onto, so I extend each motor terminal with what amounts to a short "pigtail" made from the cap leads. That's 1 cap from the case to each terminal, plus 1 cap between the terminals, which makes 2 leads that need to be attached AT each terminal.

    To attach to the case, I drill & tap a #2-56 hole in the case, then put a very short (1/8") screw in it. Hook the 2 cap leads from the terminals & screw them onto the case. Even with flux, it's just too hard to get solder to stick well to motor cases, & I can drill, tap, & screw them down a lot faster, with 100% solid connections. Got to be a little careful drilling, but it's not hard to find a convenient spot that won't hurt anything.

    JM
     
  11. Tugboat

    Tugboat Facilitator RCWC Staff Admiral (Supporter)

    Joined:
    Jan 10, 2007
    Posts:
    8,298
    Location:
    Statesboro, GA
    Shape might have nothing to do with it... but I don't think that you would get m(any) electrolytics if you walked into radioshack and picked up a pack of ceramic disc caps.

    There should also be plenty of lead length on your basic garden-variety cap to do all that one needs to do, plus have a bunch trimmed off.

    If you have an iron of sufficient power, with flux it'll stick properly.
     
  12. Powder Monkey

    Powder Monkey Active Member

    Joined:
    Dec 18, 2006
    Posts:
    1,394
    Drill you mean that tool that is made for perforating something behind and beyond the original intended target object.[:0]

    can you post some pictures please id like to see that