Printed Circuit Board Assembly & PCB Design SMT Electronics Assembly Manufacturing Forum

Printed Circuit Board Assembly & PCB Design Forum

SMT electronics assembly manufacturing forum.


Dropped component guide lines

Views: 1786

FO SMT

#88753

Dropped reel component guide lines | 21 December, 2022

Looking for guide line or rule of thumb to use in production if reel of component is dropped in production Both Active/Passive components

Any study available?

Example:

Active: 30cm drop =Scrap

Passive 60cm drop =scrap

BR Fredrik

reply »

#88756

Dropped reel component guide lines | 22 December, 2022

I seriously doubt it. I have never heard anyone even ask about that. What failure mode exactly are you looking at?

If by chance you have found ceramic capacitors on assemblies that have failed due to cracks, it wasn't because the reel was dropped before assembly.

reply »


DWL

#88773

Dropped reel component guide lines | 30 December, 2022

To me, it sounds like a bored quality engineer looking for problems where none exist.

I will say that the terminal velocity of a falling reel is below the threshold that would cause damage to typical components. Therefor, it is safe to use a reel that has fallen any distance. This is based on nothing scientific and completely pulled out of my a er, the air.

reply »

IPC Training & Certification - Blackfox

Win Source Online Electronic parts