2835Three patches
LED Beads
Keyword:
Luminous principle
The terminal voltage of the PN junction forms a certain potential barrier. When the forward bias voltage is applied, the potential barrier decreases, and most carriers in the P and N regions diffuse to each other. Because the electron mobility is much larger than the hole mobility, a large number of electrons will diffuse into the P region, forming the injection of minority carriers in the P region. These electrons recombine with holes in the valence band, and the energy obtained by recombining is released in the form of light energy. This is the principle of PN junction luminescence.
1。 In-line low-power specifications include: straw hat/helmet, round head, concave, oval, square (2 * 3 * 4) bullet head, flat head, (3/5/flat head/bread type) piranha, etc.
2。 SMD patches are generally divided into (3020/3528/5050, these are front light sources)/1016/1024, and these are side light sources.
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