When soldering lead-type LED lamps, it is important to remember that, since transparent resin has a low softening temperature (glass transition temperature), one must carefully control the soldering temperature. Marktech further recommends that the following precautions be observed when soldering lead-type LED lamps:
Soldering Conditions
When soldering lead-type LED lamps to the PCB, please follow the soldering conditions shown below:
Specific Handling Precautions for Specific Packages
3 Plastic Stem Package
When mounting this kind of device on a 2.54-mm pitch standard PCB, make sure that the device body is more than 2 mm above the surface of the PC board as the leads are soldered.
Do not apply mechanical stress from the top of the device
Even when the device pitch matches the PCB specification, make sure the device is 1 mm or more away from the board.
When using a through-hole board, make sure the device is raised 2mm or more above the board surface.
