Soldering Techniques

Use only rosin-type soldering fluxes (such as M-Flux AR ) on printed-circuit terminals , and remove all flux residue after soldering. Acid and/or chloride type fluxes, particularly the paste type, may cause the copper to unbond from the backing, and often create serious electrical leakage problems, especially at elevated temperature. If the leadwire system is an alloy that must be soldered with a corrosive flux, pre-tin the wire with an active acid flux such as M-Flux SS , remove flux residue, and then solder the wire to the printed-circuit terminal using rosin flux.

Page 6 of 12