Capacitor Help

NWCCTV

I am in need of a Capacitor replacement for a cap that is marked CS 100 50V. I have tons of capacitors but they are all uf. What can I use as a replacement?

Cluso99

A picture, where it is used, a schematic?
All might help us determine what it is.

evanh

CS100 doesn't tell us much by itself. However a google search does hit on a Nichicon branded range of electrolytics - http://www.nichicon.co.jp/english/products/pdfs/e-p_cs.pdf . None in that PDF are 50 volt though.

LoopyByteloose

It could be 100uf. How big is this capacitor? 50VDC is not a bit problem. Does it have markings for + and - ?

100 farads would equal 100,000uf right? It would be a rather large capacitor.

http://www.ebay.com/sch/i.html?_from=R40&_trksid=p2047675.m570.l1313.TR0.TRC0.H0.X100000uf+50+volts.TRS0&_nkw=10000

Or it could be 100 picofarad... very tiny.
http://www.ebay.com/itm/E-Projects-100pF-Ceramic-Disc-Capacitor-50-Volts-25-Pieces-/171173389373

What is it supposed to do?

Heater.

No. 100 Farads would be 100,000,000uF.

RDL2004

This doesn't actually answer your question, but you can get a decent multimeter that can read capacitance for less than $20 Anybody involved in hobby electronics should have one. A good choice at that price is the Uni-T UT136B.

LoopyByteloose

Well, thanks Heater for catching my mistake.

So at 100 Farads at 50VDC you would require an extremely large capacitor.

Isn't there some production labling convention for capacitors that claims a value without any additional code is microfarads?

The real core issue is that without a good schematic or testing a similar capacitor in good working order, nobody can be sure. If you removed a damaged one, there is no point in testing it. You would have to pull another one exactly the same and presume it to be in good working order -- then test that one.

NWCCTV

It is a smaller Cap. About 3/8 inch in length. I used a 100uf 50V in it's place and it worked. The only numbers on it were what I listed. It came from my neighbors thermostat which she knocked off the wall and her friend tried to superglue it back on!!!! I cleaned up the connection side and soldered the 100uf in it's place and that worked. Thanks for the help.

erco

Her friend must have used the wrong brand of superglue.

Beau Schwabe

I believe that might be a 10uF capacitor based on the standard numbering system used on other components across the industry.

... a 101 would be 100uF , but since this is a 100 , I suspect that it might be 10uF

Phil Pilgrim (PhiPi)

Beau Schwabe wrote:

I believe that might be a 10uF capacitor based on the standard numbering system used on other components across the industry.

Then wouldn't "100" be 10 pF, instead of 10 uF? I believe 10 uF would be represented by "106."

-Phil

Beau Schwabe

Phil,

No, I think it's 10uF .... the link below is just a reference after a Google search for "cs series capacitor" ... it is close, but not exact, but something to notice is that the capacitors are referenced in uF and not pF ... after a certain point or style of capacitor (perhaps just being an electrolytic) it should be obvious that your values are in uF and not pF ... notice the chart also for both "CS series" and "PZ series" ... both are in uF

http://www.mouser.com/pdfdocs/Nichicon_CSseriesCaps.pdf

Beau Schwabe

This is probably a more accurate datasheet ....

http://www.jbcapacitors.com/pdf/JCS-2000H-at-85-SMD-Aluminum-Electrolytic-Capacitor.pdf