What caused this pcb to blow out?

[Bruspark]

Interesting to hear.

For the last part of my working life I was an ROV senior pilot/tech. The ROVs operated in very hostile environments etc and not once did we have a failure due to solder related issues.

I’ll have to read up, every day a school day.

Thanks

Do you know they used lead free solder? Military, medical and other high risk products do not have to use lead free solder.

Those industries lobbied hard for that exclusion

 

[johnb2713]

Do you know they used lead free solder? Military, medical and other high risk products do not have to use lead free solder.

Those industries lobbied hard for that exclusion

They definitely did not use lead free solder.

 

[Bruspark]

And just in time to illustrate the last point - this afternoon's job was a lithium battery charger that didn't like to start charging. Poor hand soldered joints on the input socket (among other places) hadn't survived life's inevitable stresses. Not even sure I can blame no-lead solder in this case as it would be horrible with Lead too eventually.

Quickly cleaned up and 'done propper'

Pic before and after . .