Anyone have an idea what this kind of part this is or a suitable replacement? It has no markings, center pads are connected to gnd. Pads on the ends are basically input to an ADC circuit. Normal signals would be DC to <15hz, no more than maybe 20-30vdc <30ma on the pictured one. Smaller ones are downstream of TRIACs switching 24vac @ 0.5A. In the silk screen these are all identified as Fx, so guessing its a fuse or ferrite. If the pictured on the ADC circuits sees 24vac, it pretty well removes itself from the board, saving the rest of the circuit. On the TRIAC outputs, the TRIAC will fail before they suffer any damage.
I have a few I can experiment with to try and identify the specs, just hoping someone can narrow it down by looking at it.