May I know these?

[lorins_core]

Good Day To All

I need a Advice About To my 220V-AC Fan... if I Put .1k/400VAC Mylar Caps if Safe?


I need a Advice About To my 220V-AC Fan... if I Put MF504K/100V S.W Mylar Caps if Safe?



Thanks

[ben7]

Re: May I know these?

Good Day To All

I need a Advice About To my 220V-AC Fan... if I Put .1k/400VAC Mylar Caps if Safe?


I need a Advice About To my 220V-AC Fan... if I Put MF504K/100V S.W Mylar Caps if Safe?



Thanks

The first one is OK. '.1k' is most likely 100nF, or 0.1uF
The second one ... 100V ... NO WAY!!! That WILL fail on you!

[budm]

Re: May I know these?

Is the cap going to be connected be Hot and Neutral? If it is, you need to use safety cap so if something goes wrong it will fail in open mode instead of shorted out.

[PeteS in CA]

Re: May I know these?

... .1k/400VAC ...

If the "k" on the part is actually "K" rather than "k", that is the code for the tolerance, 10% (which means the actual capacitance of the part is .1uF, +/-10%). Definitely use a part rated for AC voltage that is as high or higher than the voltage applied to the fan. Preferably use a safety agency approved part rated for AC voltage that is as high or higher than the applied voltage.