I=92ve been OK-ing changes in BOM=92s of film caps to COG ceramic=92s. Mostly in low Q filter applications. I thought I should look in detail at the ceramic cap specifications.
These caps look amazing! Dissipation factors below 0.1% (Q > 1k) low tempco=92s and aging. I put some on our SRS LCR meter and they measure as good as the best polypropylene=92s that I=92ve got. Is there some =91gottcha=92 that I should look out for? (Dielectric absorption?) Or should all new designs use COG ceramics? (This might explain why all the film caps are going away.)
George H.