EEVblog Electronics Community Forum
Electronics => Beginners => Topic started by: JustMeHere on March 04, 2021, 02:45:01 am
-
When I solder SMD tactical switches, I have a problem with them wanting to float on the solder. They don't sit flush to the PCB. This is causing problems with the buttons sitting cattywompus.
Any advice on getting them to sit flush?
-
When I solder SMD tactical switches, I have a problem with them wanting to float on the solder. They don't sit flush to the PCB. This is causing problems with the buttons sitting cattywompus.
Any advice on getting them to sit flush?
Hi, (1) you can try using lesser solder paste. (2) If you're using a hot air gun to solder the components, you can use tweezers to hold them down while it reflows and later remove the excess solder with copper wick.
-
Do you perhaps mean "tactile" switch? Or is a tactical switch referencing some military application? ;)
-
Do you perhaps mean "tactile" switch? Or is a tactical switch referencing some military application? ;)
Maybe they’re just ordinary tact(old) switches, but in camo? :D (That’s what most “tactical” gear seems to be: ordinary stuff dolled up in camo print.)
-
When I solder SMD tactical switches, I have a problem with them wanting to float on the solder. They don't sit flush to the PCB. This is causing problems with the buttons sitting cattywompus.
Any advice on getting them to sit flush?
The other things to check would be a) what’s the solderability of the terminals like? There was another thread on here about someone whose tact buttons were not reflowing flat, and it turned out to be tarnished terminals. b) reflow profile: if the tact button terminals are a much larger thermal mass than the other components on the board, they may not be getting hot enough soon enough. A different profile with a longer soak phase might help.
-
Do you perhaps mean "tactile" switch? Or is a tactical switch referencing some military application? ;)
That's what happen when spell checker knows better.