Life of electronic components
Life of electronic components
(OP)
In my experience, it is generally accepted that electronic components do not have wear-out failures, so they are not life-limited. (Exceptions would be liquid tantalum capacitors, components with thermally fatigued solder joints, switches, and maybe a few others.) Does anyone know of a reference that states this?





RE: Life of electronic components
That no longer matters, if you are building to RoHS compliance, because the 'solder' joints and the mechanical joints will all start to become 'opens' at three years or less.
Mike Halloran
Pembroke Pines, FL, USA
RE: Life of electronic components
- Does that include solid tantalum capacitors?
- What conditions are assumed for the 3 year solder life? My experience is with commercial aircraft environment (AIC and AUC by the MIL-217 standard), but I'm aware of solder joint fatigue being an issue for a helicopter environment (ARW). I know that's simplifying it a lot, but those environments imply certain levels of vibration and thermal cycling.
- By years, do you mean operating life, or calendar years regardless of duty cycle?
RE: Life of electronic components
The 3 year life for everything RoHS is for a very small sample of stuff, belonging to me, and used exclusively in my air-conditioned concrete house, which doesn't shake very much at all.
Mike Halloran
Pembroke Pines, FL, USA
RE: Life of electronic components
RE: Life of electronic components
"Formal education is a weapon, whose effect depends on who holds it in his hands and at whom it is aimed." ~ Joseph Stalin
RE: Life of electronic components
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RE: Life of electronic components
"Formal education is a weapon, whose effect depends on who holds it in his hands and at whom it is aimed." ~ Joseph Stalin