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Hello, thank you for your first response. I need such speed in order to generate a very fast dV/dt (>1500V/us). The target is to make some characterize some device in extreme condition.
An alternative could be to read the data-sheet of photo-diode that could be similar. For this one (example): thorlabs.com/drawings/…, the information output should be in the leakage current, that give a voltage on RL resistance. And a DC voltage should be apply on the diode to work correctly.
I try to understand where is the limit, and maybe I have found an explanation in MKP1848 document: "These capacitors are not suitable for mains applications as across-the-line capacitors without additional protection. These mains applications are strictly regulated in safety standards and therefore electromagnetic interference suppression capacitors conforming the standards must be used."
I think we are on two different schematics. You are talking about the decoupling of 350V/2A DC supply? I think you are right, >100uF is needed. In my case I was talking about filtering 240VAC/50Hz supply. My question is: is it possible to use the series MKP1848 for that? (that are called "DC-Link")
But I have an idea: Have they write the specification with highest AC frequency, like 10kHz? If they have do that, then I can understand why we cannot apply high AC voltage! If this hypothesis is correct, then I can assume that "APPLICATION NOTE AND LIMITING CONDITIONS" is not totally valid with 50Hz?
Same calculation with 100uF under 240VAC/50Hz: the current is 7.5A, and then the dissipated power is 0.17W. In principle, no risk of self-heating, right?
