"A"
"B"
"C",
"D",
"E",
"F",
"G",
"H",
"I",
"J",
"K",
"L",
"M",
"N",
"O",
"P",
"Q",
"R",
"S",
"T",
"U",
"V",
"W",
"X",
"Y",
"Z"
LIGHT-EMITTING DIODE (LED). A PN-junction diode that emits visible light when it is forward biased. LEDs are solid-state semiconductor light sources, LED Manufacturers.
Light Emitting Diode Symbol
Depending on the material used to make the diode, the light may be red, green, or amber, [LED Semiconductor Material vs. LED Color].
LEDs may be uni-color, bi-color, or tri-color, in either through-hole or a Surface Mound Device [SMD]. Standard sizes for thru-hole [radial] devices are T-1 [3mm] and T-1 3/4 [5mm].
Round lens Sizes; 3mm, 5mm, 8mm, 10mm, 20mm;
Rectangular lens sizes; 2x5x7mm;
OVAL lens sizes; 4mm, 5mm.
Tri-Color LED Package
Manufacturers of Multi-Colored LEDs, Visible Spectrum Graph
Through-Hole LED, Leaded LED
The Cathode is the short lead, and the Anode is the long lead [positive part of circuit] for thru-hole devices.
Panel Mount / Bulk-Head Mount LED
7-Segment LED schematic
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