[sdiy] [OT] Soldering pins on QFP, etc

rsdio at audiobanshee.com rsdio at audiobanshee.com
Fri Jun 8 04:58:41 CEST 2018


It’s a good idea to avoid wiping any temperature controlled iron on a wet sponge - whether it’s an underpowered USB Soldering Iron or not. Instead, you want the Tip Cleaner that’s made from coiled wire that will scrape solder from the tip without cooling it down.

Personally, I’ve never purchased solder wick in my life, but it’s actually possible to get great results using the right flux. You drag molten solder across those tiny 0.5mm pins and the flux makes it bead up like water on an oily surface.

I have the Weller WD 2M power supply and WMRP 55W soldering pen. There are a number of fine tips available and that’s what I primarily use. The station also supports the WMRT 80W soldering tweezers for removing many things from 2-pin resistors and capacitors to 14-pin SMD chips (using an optional tip that can heat several pins on two sides at the same time).

Brian


On Jun 7, 2018, at 2:29 PM, MTG <grant at musictechnologiesgroup.com> wrote:
> I'm one of those mental patients that actually solders individual pins on things like TQFP-48 and MSOP-10 (0.5mm). I would like to find a soldering iron with a nice fine tip for doing that work. I'm not a drag-n-wick kind of guy. I do use a microscope.
> 
> Anyway, any recommendations? I don't need a mega-station, just a soldering iron or soldering station dedicated to this (so I don't have to switch tips for everything else). I'm happy to try any power source except butane. I actually had some decent luck with a USB Soldering Iron but it's really not up to the task, as far as heating quickly and if you wipe it you have to wait a long time for it to heat back up.
> 
> http://getlofi.com/usb-soldering-iron-now-in-the-getloficomshop/




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