Power Inductors – Color Coding

You can also view an Adobe Acrobat version of this document.

Some Coilcraft surface mount power inductors are marked with 3 color dots. The table at right shows the significance of each color.

Dots 1 and 2 indicate the inductance in nanoHenries.

Dot 3 indicates the number of zeroes to be added.

Examples:
Yellow, Violet, Yellow = 470 µH
Brown, Green, Orange = 15 µH
Blue, Gray, Brown = 680 nH

colrpowr.gif (1511 bytes)

   0 = Black
   1 = Brown
   2 = Red
   3 = Orange
   4 = Yellow
   5 = Green
   6 = Blue
   7 = Violet
   8 = Gray
   9 = White