desoldering capacitors, resistors and other components for testing

[electron_jj]

Hi everyone, does any know if the process of desoldering capacitors, resistors and other components out of the circuit board may risk damaging these components in the process? The power supply board that I have been desoldering components out of uses lead free solder so the temperature of the solder is around 370 degrees and may even be higher. As I am new to electronics and still mastering the skill of desoldering, it had taken me longer time than average to desolder any component, say around 3-5 minutes or so and even more if there are residual solder in the through hole which takes even more time to disconnect the component. During the process, would the 370 degrees heat get transferred to the inside of the capacitor, resistor etc. and damage them? So far, the components that I have disconnected from the circuits all tested okay out of circuit. But in order to find out where the problems lies in the circuit, I anticipate I will need to desolder many more components to check, and I am concerned that the desoldering process may damage these components also. Grateful for any advice on this. Thanks!

[Kerlin]

Sorry but fixing a power supply by desoldering each component and checking it is not the way to go.
Highly unlikely you will fix it that way.
You have skipped the whole process of studying the way power supplies work and then learning and applying fault finding techniques.
The maximum soldering temperature is often supplied by manufacturers on their data sheet, if you can't find a data sheet for that particular one then often a data sheet of similar components will do.
Generally if using correct practices desoldering and soldering through hole components components causes no problems. Surface mount components usually do have critical soldering requirements.
Also as a general guide if you spend more than six hours soldering a power supply PCB then consider it scrapped.

[electron_jj]

Thanks!

[Kerlin]

Just added a bit to that