Need Help Finding 0.75 mfd capacitor

Discussion in 'Electrical Forum discussion & Blog' started by SNYD, Nov 3, 2009.

  1. SNYD

    SNYD New Member

    Nov 3, 2009
    I am in need of finding 0.75 mfd - 330 VAC capacitors. Can anyone help????
  2. PEW

    PEW DIY Senior Member

    Sep 2, 2004
    I would try:

    Radio Shack
    Allied Electronics

    Allied probably being your best bet.
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  4. Billy_Bob

    Billy_Bob In the Trades

    Apr 2, 2008
    I should think a higher voltage rating like 370 volts would be ok so long as it was still .75 mfd.

    So might have better luck searching for this by not including "330".

    Also capacitors are abbreviated uF

    So maybe search for

    .75uF capacitor AC


    .75uF capacitor 370 AC

    or 370 vac capacitors

    (Might call and ask some of the places you find with the last search.)
  5. jimbo

    jimbo Plumber

    Aug 31, 2004
    San Diego
    Any electronic store such as the ones mentioned, or Frys, should have something. What is your application? If it is something like HVAC then a 370 VAC might be a better number. 1.414 X 240 = 339 volts!

    But if the application calls for 370, it is available I am sure. In most applications, there is no downside to using a capactor with a higher max. voltage rating.
  6. Thatguy

    Thatguy Homeowner

    Aug 27, 2008
    A bounty hunter like in "Raising Arizona"
    Depending on your application, try Grainger.
    Two 165v 1.5 uF in series will give you 0.75 uF @ 330vac [but you need some voltage sharing resistors] , or two 0.375 uF 330v in parallel will give you 0.75 uF @ 330v.

    And what's your tolerance on the 0.75?
    Last edited: Nov 3, 2009
  7. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Sep 2, 2004
    Retired Systems engineer for defense industry.
    New England
    The voltage rating on a capacitor is essentially its insulation rating...the point where it might short out by flashover or piercing the insulation layer. So, normally, using one with a higher voltage rating isn't an issue.
  8. Cookie

    Cookie .

    Oct 7, 2005
    Last edited: Nov 3, 2009
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