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Passice components, LED, LED
An LED has a positive (anode) lead and a negative (cathode) lead. The schematic symbol of the LED is similar to the diode (as shown above) except for two arrows pointing outwards. The anode (+) is marked with a triangle and the cathode (-) is marked with a line.
The longer lead of an LED is almost always the positive (anode) lead, while the shorter one is the negative (cathode). Also, if you look inside the LED, the smaller of the metal pieces is connected to the anode while the bigger one is connected to the cathode (see diagram above).
| Color | Voltage drop |
| red | 2 |
| green | 2.1 |
| blue | 3.6 |
| white | 3.6 |
| yellow | 2.1 |
| orange | 2.2 |
| amber | 2.1 |
| infra red | 1.7 |
| other | 2 |
Blue
3mm, #97, Bak 2.03.B
5mm, #645, Bak 2.07
10mm, #109, Bak 2.06
Blue Cyan
5mm, #3, Bak 2,03.B
Green
3mm, #120, Bak 2.08.C
5mm, #125, Bak 2.05.A
10mm, #20, Bak 5.10.C
Red
3mm, #165, Bak 2.05.C
5mm, #124, Bak 2.09.A
8mm, #20, Bak 2.03.A
10mm, #30, Bak 5.09.A
White
3mm, #110,2.05.B
5mm, #92, Bak 2.10.B
10mm, #20, Bak 4.03.C
Yellow
3mm, #105, Bak 2.03.C
5mm, #116, Bak 2.09.C
10mm, #20, Bak 2.04.C
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