LED current limiting

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LED color If nominal Vss
5 V 12 V 15 V 24 V
Red 10 mA 270 Ω
1/8 W
1 kΩ
1/8 W
1.2 kΩ
1/4 W
2.2 kΩ
1/4 W
Green
Blue
Yellow
Amber
20 mA 120 Ω
1/8 W
470 Ω
1/4 W
560 Ω
1/2 W
1 kΩ
1/2 W