1000PCS 3MM phototransistor receiver F3 Transparent white gel receives photosensitive tube diode light LED lamp beads

LED welding conditions

(1) soldering iron: iron (maximum 30W) tip temperature does not exceed 300 DEG C; iron necessary grounding, static electricity can not be beyond the scope; the welding time is less than 3 seconds; welding position at least from the colloid 3 mm.

(2): the highest temperature is 260 DEG dip dip dip; no more than 5 seconds; dip position at least 3 mm from the gel.

Pin forming method

(1) required to be 2 mm from the gel in order to bend the stent.

(2) the holder must be completed by a fixture or by a professional.

(3) support forming must be completed before welding.

(4) the support is required to ensure that the pin and spacing are in line with the circuit board.

LED installation method

(1) pay attention to the arrangement of the exterior line of all kinds of devices, so as to prevent the polarity. Device can not be too close to the heating elements, working conditions do not exceed the limits of its provisions.

(2) be sure not to install LED in the case of pin deformation.

(3) to calculate the size and tolerance of the hole on the face and the circuit board when the decision is to be installed in the hole to avoid excessive pressure on the bracket.

(4) when installing LED, it is recommended to use the guide sleeve positioning.

(5) before the welding temperature is returned to normal, the LED must be avoided to be subjected to any vibration or external force.

Cleaning

When using chemical cleaning colloid must be especially careful, because some chemicals on the colloid surface damage and cause fading such as trichloroethylene, acetone. Ethanol can be used to wipe, dip, time at room temperature is not more than 3 minutes.