I was working with a motor control mosfet board with a screen when my screwdriver slipped, knocking a miniscule little black square off the board that was labeled "TVS". There seems to be a bunch of these same diodes on the board. The device and attatched screen still works fine, but I'm wondering whether this is gonna be a problem eventually. As I understand, a TVS is a diode that acts like an open circuit and diverts current away from sensitive componets when there is a voltage spike. That's why everything works without the TVS for now. I have other TVS diodes from an identical non-functioning board that I can solder on but it would be difficult, time-consuming, and I would have to buy a smaller soldering iron tip. I'm powering this with a lipo battery btw so the input voltage won't really spike above what the lipo was charged to. My question is: Should I replace the diode or should I leave it how it is? If there's enough of a voltate spike coming from another componet to trigger the TVS, I feel like that componet and thus the board would be totaled anyway. If I didn't provide enough info in this post, ask and you shall receive. Thanks so much.