From: RNMarsh
In responce to my question regarding soldering to gold on HP equipment.
Pcb trace is copper base, then tin, gold. Soldering is to the tin so a
standard tin/lead is fine..in fact, that is what HP used to use.
I use only two types of solder - both made for the electronics industry so
the flux is appropriate: 63/37 and sometimes the 2% silver if there is any
silver involved (TEK ceramic terminals, for example, or silver switch contacts), 62/36/2.
Only one more thing..be sure to get a brand name; for example, Kester
or Alpha Metals. Because their solder will be of high purity metals. Off
brands and second sources are not sure to be made with pure metals and often have a lot of impurities.
Note: Rosin flux only
Lead = Pb
Tin = Sn
Silver = Ag
63/37 would read Pb63%Sn37%
62/36/2 would read Pb62%36%Ag2%
Lead Free
95/5 would read Sn95%Ag5%
In responce to my question regarding soldering to gold on HP equipment.
Pcb trace is copper base, then tin, gold. Soldering is to the tin so a
standard tin/lead is fine..in fact, that is what HP used to use.
I use only two types of solder - both made for the electronics industry so
the flux is appropriate: 63/37 and sometimes the 2% silver if there is any
silver involved (TEK ceramic terminals, for example, or silver switch contacts), 62/36/2.
Only one more thing..be sure to get a brand name; for example, Kester
or Alpha Metals. Because their solder will be of high purity metals. Off
brands and second sources are not sure to be made with pure metals and often have a lot of impurities.
Note: Rosin flux only
Lead = Pb
Tin = Sn
Silver = Ag
63/37 would read Pb63%Sn37%
62/36/2 would read Pb62%36%Ag2%
Lead Free
95/5 would read Sn95%Ag5%