Increasingly, SMD parts are used in production, as well as among radio amateurs. It is more convenient to work with them, since there is no need to drill holes for the leads, and the devices are very miniaturized. SMD components can be used and reused. Here again there is an obvious superiority of surface mounting, because it is much easier to evaporate small parts. They are very easy to blow off with a special blowtorch from the board. But if you don’t have it at hand, a regular household iron will help you out.
Removing SMD parts
So, my LED lamp has burned out and I won’t repair it. I decipher it for parts for my future homemade products.
Disassemble the light bulb, remove the top cap.
We take out the board from the base of the base.
We unsolder mounted components and parts, wires. In general, there should be a fee only with SMD details.
Fix the iron upside down. This must be done rigidly so that it does not tip over during the soldering process. Using the iron is still good because it has a regulator that will fairly accurately maintain the set temperature of the sole surface. This is a huge plus, as the surface components are very afraid of overheating. We set the temperature to around 180 degrees Celsius. This is the second mode of ironing clothes, if my memory serves me. If the soldering does not go - gradually increase the temperature. Put the board from the light bulb on the sole of an inverted iron.
We are waiting for 15-20 seconds until the board warms up. At this time, we wet the flux every detail. Flux will not overheat, it will be a kind of helper when soldering.With him, all elements are removed without difficulty.
Once everything is well warmed up, all the details can be brushed off the board by striking the board on some surface. But I will do everything carefully. To do this, take a wooden stick to hold the board in place and use tweezers to detach each component of the board.