Classification And Structure Of SMD LED

Classification of SMD (surface mount diode) LED

1. By shape: 0603, 1206, 2810, 3020, 3528, 5050, etc.

2. By color: red, green, blue, yellow, amber, yellow green, white, purple, infrared, etc.

3. According to colloid color: colorless transparent, colored transparent, colorless scattering, colored scattering (the depth is adjusted according to the proportion).

4. Color classification: monochrome, two-color, full-color

Structure of SMD LED

At present, most of the commercial white LEDs are two wavelengths, that is, the combination of blue single crystal and YAG yellow phosphor produces white light. In the future, three wavelength white LED will be more promising, that is, white light will be produced by mixing inorganic UV crystal with red, blue and green phosphors. Or white light can be produced by mixing the light of red, blue and green chips.