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The LED installation method

- Aug 23, 2016 -

(1) pay attention to all kinds of devices are arranged on the perimeter, in case the wrong polarity. Device and not too close to the heating element working conditions do not exceed the specified limit.

(2) make sure do not install the pin deformation under the condition of the LED.

(3) when decided to install in the hole, the calculated pitch on a good face and PCB size and tolerance in order to avoid support from undue pressure.

(4) when installing the LED, build meaning with a guide sleeve positioning.

(5) before soldering temperature back to normal, to avoid any vibrations or external force to the LED.

LED the cleaning should pay attention to?

Must be particularly careful when using chemical cleaning gel, because some of the chemicals on colloid surface has damage and lead to fade as trichloroethylene, acetone, etc. Can use alcohol to wipe, dipping, time does not exceed 3 minutes at room temperature.

LED the appropriate work and storage temperature:

(1) the LED LAMPS light emitting diode Topr to 25 ℃ ~ 85 ℃, Tstg - 40 ℃ ~ 100 ℃

(2) the LED DISPLAYS DISPLAYS Topr - 20 ℃ ~ 70 ℃, Tstg - 20 ℃ ~ 85 ℃

(3) the OUT - LED LAMPS feel pixels Topr - 20 ℃ ~ 60 ℃, Tstg - 20 ℃ ~ 70 ℃

Performance test application of common sense and LED LED products as follows:

(1) iron welding: soldering iron (maximum 30 w) tip temperature does not exceed 300 ℃; Welding time not more than 3 seconds; Welding position from colloidal 2 mm at least.

(2) welding, welding the highest temperature 260 ℃; Dip soldering time not more than 5 seconds; Welding position from colloidal 2 mm at least.

Pin forming methods:

(1) have to be bending bracket from colloidal 2 mm.

(2) scaffold forming must use fixture or are done by professionals.

(3) bracket forming must be finished before welding.

(4) scaffold forming need to ensure that pins and spacing is consistent with the circuit board.

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