Hi,

in a Class 3 product (aerospace) we have to solder some wires to a PCB
using a Sn96,5Ag3,5 solder alloy. Wires are silver coated, high-strength
copper alloy and the PCB is SnPb plated.

My first question is, Do you consider that solder alloy as a good option?

Besides, in a near future, we will change the finish of the PCB from SnPb
to ENIG. In that situation, what solder alloy do you recommend us?

Thank you in advance.

Juan T. Marugán
Production QA
Indra Sistemas SA
Spain

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