Still playing with the lightning-hit modem from the other day. Have tracked traces to a component I can't ID, and am unable to get any kind of useful meter reading from.
Physical: Approx 6.5mm long, slightly less - perhaps 4.5-5mm wide, < 2.5mm thick. Solid black body with silver/grey-ish markings. Two protruding tabs, one on each short side, bent down to make contact with solder pads on PCB.
Drawing/markings:
| Approx | | 6.5mm | | | | | V V --------