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I am looking to simulate a circuit (in 3D) that has several ceramic caps in it. I am trying to model a problem I am having with parts becoming hot. I would like to do a model of a ceramic cap that is pretty simple. An actual capacitor has quite a few plates in it and modeling it (especially with 18 caps in my circuit to simulate) will take up a lot of computing time. Besides the caps, I also am modeling inductors out of copper tubing, which themselves are quite the chore. Back to the caps though. How do I go about building a generic cap that is an ideal electrical capacitor but is contained within a ceramic box that goes onto a PCB? What I wanted to try was to use a box, assign it a value of capacitance, and then go from there. I have no idea how to do that let alone if that is the right approach. Freq is 40MHz.

My intent was to simulate the circuit with ideal electrical caps within a ceramic box, mounted on a PCB alongside some inductors. The 2nd problem is how to interface ideal parts with PCB metal and how the two will work together. I have read and worked the example on "An inductor and amplifier" file but it just really skims over what I am trying to do. This is a complicated problem but I am just trying to simplify the issue into simpler blocks.