Before revision: A "feedthrough capacitor" has a definite minimum value of capacitance and is used for bypass purposes in ultra-high-frequency URL Feedthroughs can be divided into power and instrumentation categories.
After revision: A "feedthrough capacitor" has a guaranteed minimum value of shunt capacitance built in it and is used for bypass purposes in ultra-high-frequency URL Feedthroughs can be divided into power and instrumentation categories.