I find myself in the situation of being forced to use filter connectors to solve an EMC issue very late in the project. Normally, this should of course be solved in circuit design, but as projects and schedules go, this is where we are. Now, to simulate the influence of the filter parasitics onto the main circuit, I'm turning to the manufacturer data sheet to get the capacitance and inductance values for the different filter topologies (C, PI):
To my amazement, Glenair is not listing the inductance values of the PI-filter. Could it be because the inductive element is so small (coil or ferrite bead for each pin), that the filter response is dominated by the capacitive elements anyway? Then why make a PI filter in the first place?
Any insight here is much appreciated.