I have a few very old mylars without clear (to me) units, or no unit specified at all.
One reads .001 with 10% and 1KV beneath it.
A second reads 82 with 10% beneath it and 1KV on the other side as it is about half the size of the ".001!"
A third reads .1Z with 10V beneath it.
Looking on the net I found different interpretations of that 'Z:' one stated it was the tolerance, another that the 'Z' meant it was in picofarads.

H E L L L P P!!!

 

I doubt .1Z would be in picofarads. Most likely a 0.1uF 10 volt, though I think that 10V seems a rather low voltage rating.
First one would be .001uF (1000pF)
Second one would be 82pF. When you just have a number, it is usually just pF

 

I doubt .1Z would be in picofarads. Most likely a 0.1uF 10 volt, though I think that 10V seems a rather low voltage rating.
First one would be .001uF (1000pF)
Second one would be 82pF. When you just have a number, it is usually just pF

Thank you!

 

Z rated capacitors are for DC power supply filtering... Equivalent resistance does not change with frequency. I.E. an "Ideal" capacitor.

What are impedance/ ESR frequency characteristics in capacitors? | Murata Manufacturing Articles

 

Z rated capacitors are for DC power supply filtering... Equivalent resistance does not change with frequency. I.E. an "Ideal" capacitor.

What are impedance/ ESR frequency characteristics in capacitors? | Murata Manufacturing Articles

thank you. and it will be used for filtering.