Hi I have 2 .0002 uf capacitors. I need to use them to replace a .0001 capacitor with a 600 volt rating. If I connect then in series I get .0001, but I dont know the voltage of the capacitors . the capacitors are marked 68 j npd, does anyone know what that marking means? thanks, Ian

:Hi I have 2 .0002 uf capacitors. I need to use them to replace a .0001 capacitor with a 600 volt rating. If I connect then in series I get .0001, but I dont know the voltage of the capacitors . the capacitors are marked 68 j npd, does anyone know what that marking means? thanks, Ian

Ian: are you sure you have .0002 uf caps? I would think the 68 means 68 pf, the J meaning +/- 5% tolerance. Could the npd actually be npo (temperature stable)?
No clue about the voltage rating, but most ceramic caps are fairly high. Hope someone here can shed some light on this for you.
Steve

::Hi I have 2 .0002 uf capacitors. I need to use them to replace a .0001 capacitor with a 600 volt rating. If I connect then in series I get .0001, but I dont know the voltage of the capacitors . the capacitors are marked 68 j npd, does anyone know what that marking means? thanks, Ian
:
:Ian: are you sure you have .0002 uf caps? I would think the 68 means 68 pf, the J meaning +/- 5% tolerance. Could the npd actually be npo (temperature stable)?
:No clue about the voltage rating, but most ceramic caps are fairly high. Hope someone here can shed some light on this for you.
:Steve

Ian: I agree with W9DX. Go here:

http://www.electronicsteacher.com/capacitor-chart.php

See if this helps.
Lewis