Life span on electronic equipment

Hi,

Just to know from our teams.

When I was in secondy school, I try to understand why almost electronic equipment have thier own life span or warranty. It is due to expansive components or devices? Could we create by do some modification or else to expand?

until now? could not find proper answer.

tks

magic

With the exception of TVs that have their technoilogy protected by FCC standards most modern electronics can expect to be obsolete before they ever break. I'm sure if you knock the dust off an old 8 track player in the garage and refresh the mechanical parts you will find the electronics are fine.

Certain components do have a lower lifespan than others - backlights for displays springs to mind plus anything that uses a liquid electrolyte. Plasma displays, thermionic emission devices (they are still electronic components) all have a limited lifespan. EPROMS for firmware will lose their contents in time. Some memory devices actually have small batteries embedded that will eventually fail. Some PC designers did go in for a clock chip with an embedded battery that had an annoyingly short life - I haven't seen that done recently though.

Many manufacturers' warranty time periods are sales tools rather than relating to the actual expected lifespan of the product. Most of their claims will be during the initial burn-in period.

Of course, electronic kit can fail due to extraneous causes as well as internal ones. Electrical transients, over-temperature,vibration, etc.

My 8 track still works.. Even the mechanical parts have stood the test of time.But it is ling out of warranty.

-- Sue

Certain components do have a lower lifespan than others - backlights for displays springs to mind plus anything that uses a liquid electrolyte. Plasma displays, thermionic emission devices (they are still electronic components) all have a limited lifespan. EPROMS for firmware will lose their contents in time. Some memory devices actually have small batteries embedded that will eventually fail. Some PC designers did go in for a clock chip with an embedded battery that had an annoyingly short life - I haven't seen that done recently though.

Many manufacturers' warranty time periods are sales tools rather than relating to the actual expected lifespan of the product. Most of their claims will be during the initial burn-in period.

Of course, electronic kit can fail due to extraneous causes as well as internal ones. Electrical transients, over-temperature,vibration, etc.

My 8 track still works.. Even the mechanical parts have stood the test of time.But it is long out of warranty.

-- Sue

Hi,=20

Did a proper design will help?.=20

tks

magic

If you do an ESR test of the electrolytic capacitors you will likely find some that are out of spec, even though it still works to some degree. On 30 to 40 year old electrolytics I find almost a 50% failure rate of the common imported (mostly Japanese) caps of that time frame.