Belzelbub
Contributor
I’ve had one go belly up. Flooded. Most likely my fault. Back then, I wasn’t quite as diligent about o-ring maintenance and replacement. Even then, it lasted around 4 or 5 years.Dive computers are examples of just how good electronics can be made in my opinion. I've never had one go belly up.
Replacement is still working. Backlight stopped, so not ideal for lowlight, but everything else works fine. Daughter is using it now.
Electronics can be made very well these days even though tech advances don’t favor longevity. Electronics stop working when an electrical path exists that shouldn’t, or doesn’t exist when it should. A little more complicated than that, but more or less, that’s what happens.
Tech advances shrink the components. So you can get more functions in the same space. This means that the components are tiny, and spacing between non-common conductors is smaller as well. Manufacturing processes have advanced as well, so for the most part, this doesn’t pose a problem to modern equipment.
Cleaning and protection from the elements becomes critical, as it only takes a small solderball or other contaminant in the wrong spot to cause problems.
Dive computers need to work in extreme environments, so all of the above puts additional stress on the device. So, overall, I think the majority of DCs out there are quite reliable.