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Thread: Capacitor Code
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1st January 2021, 10:31 PM #1
Capacitor Code
Hi all,
I have a capacitor that appears to be leaking.
I tested it with a multimeter and get no readings for continuity or resistance.
Trying to order a new on and need to know what the coding on the capacitor means.....2.2K 250VAC
I am trying to understand whether 2.2K = 0.0022uF.
Capacitor.jpg
Thanks in advance
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1st January 2021, 11:04 PM #2SENIOR MEMBER
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K normally = uF
therefore it will be a 2.2uF 250ac cap
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1st January 2021, 11:44 PM #3SENIOR MEMBER
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K may refer to tolerance of 10%
Semtex fixes all
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1st January 2021, 11:45 PM #4.
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Continuity or resistance testing a capacitor with standard multimeter is kinda pointless.
It would normally have no continuity (the plates are separated by a very high resistance material) hence near info resistance.
Normal these are tested with a multimeter set on capacitance setting if the multimeter has such a setting.
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2nd January 2021, 10:18 AM #5SENIOR MEMBER
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Easier to see with an analogue meter but you should see a brief flick of the needle or low resistance as it charges up.
But leaking or bulging is bad regardless of correct measurement.
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2nd January 2021, 01:04 PM #6
I have been checking out some Youtube vids about texting Capacitors with the type of multimeter I have and the readings still show no activity. For the inexpensive cost of a new capacitor, I'll just order another one on line.
I'll try element14 on line to see if they have them.
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2nd January 2021, 01:07 PM #7Member
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Seeing it's rated at 250volt, if it's connected to 240ac, used a higher voltage rating.
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