Need Help Finding 0.75 mfd capacitor

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

  1. SNYD

    SNYD New Member

    Messages:
    1
    Location:
    Pennsylvania
    I am in need of finding 0.75 mfd - 330 VAC capacitors. Can anyone help????
    SNYD
  2. PEW

    PEW DIY Senior Member

    Messages:
    487
    I would try:

    Radio Shack
    Allied Electronics
    Mouser
    Jameco

    Allied probably being your best bet.
  3. Billy_Bob

    Billy_Bob In the Trades

    Messages:
    422
    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

    or...

    .75uF capacitor 370 AC

    or 370 vac capacitors

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

    jimbo Plumber

    Messages:
    8,997
    Location:
    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.
  5. Thatguy

    Thatguy Homeowner

    Messages:
    1,459
    Location:
    MD
    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
  6. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    22,126
    Location:
    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.
  7. Cookie

    Cookie .

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    5,658
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    Last edited: Nov 3, 2009
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