When installing side luminous patch LED lamp beads, all operators who need to touch the LED lamp beads must wear a truly effective anti-static bracelet to prevent static electricity from breaking through the LED lamp beads. The normal requirements for the welding of LED lamp beads are 260 degrees Celsius ± three degrees Celsius, the welding time of LED lamp beads shall not exceed two seconds, if it is a tin furnace, the temperature of the tin furnace is below 275 degrees Celsius, and the tin immersion time shall not exceed two seconds, requiring the operator to act very skillfully and accurately, so as to ensure that the LED lamp beads will not be damaged.
1. Be sure not to install LEDs when the pins are deformed
2. When installing LED on the printed circuit board, the center distance of the hole on the circuit board should be the same as the center spacing of the LED lamp foot, if the spacing of the holes is large, it will cause residual stress on the lamp foot, and the resin part may be deformed during welding;
3. When the LED LED LED on the side LED is inserted into the PCB board, the holes on the PCB board should match the size of the lamp foot to avoid being too large or too small;
4. When installing LEDs, it is recommended to use guide sleeves for positioning;
5. The area of each soldering pin pad of the double prongs is not less than 4.6 square millimeters;
6. The area of each welding foot pad of piranha is not less than 9.2 square millimeters;
7. The area of each soldering pin pad of SMD ordinary monocrystalline bracket is not less than 3.9 square millimeters;
8. The area of each soldering pin pad of SMD three-in-one bracket is not less than 1.65 square millimeters;
9. Other types of lamps should be based on the structure of the actual lamp, and the size of the pad should be formulated.
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