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Re: QMX RF sweeps


 

Hi Rick, all

All the SMD ceramic capacitors on the board are unimportant non-C0G (means probably X7R). The places where it is important to use NP0/C0G are in the BPR and LPF areas and these capacitors are all through-hole capacitors which are NP0/C0G by Vishay or TDK sourced from Digikey.?

73 Hans G0UPL



On Sat, Aug 19, 2023 at 3:14?AM Rick NF6G <rdante@...> wrote:
If Hans says X7R dielectric will work fine for C509, I will send you one! Mouser simply does not have 0.1uF C0G 0603 MLCCs. It's the same issue now as when I bought the caps a year and a half ago. It very well might be that C0G is needed elsewhere on the board, but not for C509. Let's see what Hans says, when he wakes up and hopefully sees this.

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