u/MarinatedPickachu

▲ 3 r/PCB

Can I replace all decoupling caps with capacitors of same package size but larger capacitance?

For example can I replace all 10uF 402 capacitors with 22uF 402 capacitors without adverse effects?

In which cases would this not be advised?

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u/MarinatedPickachu — 9 hours ago
▲ 9 r/KiCad

Make serpentine trace where endpoints don't align

Making a serpentine trace like on the left is easy using the Tune Length tool. Is there a way I can make a serpentine trace like on the right where the start and end points are offset?

u/MarinatedPickachu — 23 hours ago
▲ 1 r/PCB

Best way to estimate stray capacitance in order to calculate capacitors for crystal?

I have a crystal that has 12pF load capacitance in its datasheet. To calculate required capacitors I need an estimate on stray capacitance such that

12pF = C1*C2/(C1+C2)+Cstray

It's gonna be a 0.8mm 4layer JLC04161H-7628 FR4 pcb from JLCPCB (0.21040mm separation between top and ground layer)

How do I estimate Cstray?

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u/MarinatedPickachu — 1 day ago