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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Electronics components and resistor decoder colours

Posted by jpluimers on 2018/05/17

Cool video about basic electronic components explained:

It goes well with these posts:

Resistor power values

For axial resistors, they are not very well standardised, but [WayBackResistor Sizes and Packages » Resistor Guide has a nice table and [WayBackThe importance of wattage in resistors has a graph:

Power rating Body length (l) Body diameter (d) Lead length (a) Lead diameter (da)
Watt mm mm mm mm
1/8 (0.125) 3.0 ± 0.3 1.8 ± 0.3 28 ± 3 0.45 ± 0.05
1/4 (0.25) 6.5 ± 0.5 2.5 ± 0.3 28 ± 3 0.6 ± 0.05
1/2 (0.5) 8.5 ± 0.5 3.2 ± 0.3 28 ± 3 0.6 ± 0.05
1 11 ± 1 5 ± 0.5 28 ± 3 0.8 ± 0.05

[WayBackproxy.php (800×602)

https://web.archive.org/web/20170802165742/https://forum.allaboutcircuits.com/data/photos/o/1/1686-1355326215-99bffb1bd3cdbe32d740f3e6ee4fc5e5.jpg

 

 

Resistor Decoder (http://worrydream.com/ResistorDecoder/resistors.pdf)

Or you try to remember the bands in less or more rude ways. It’s not completely rainbow with black/gray/white as brown isn’t technically part of a rainbow. So here you go:

Values:
Bad Bad Big Better Black
Beer Boys Boys Be Brown
Rots Rape Race Right Red
Our Our Our Or Orange
Young Young Young Your Yellow
Guts Girls Girls Great Green
But But But Big Blue
Vodka Violet Violet Venture Violet
Goes Gives Generally Goes Grey
Well Willingly Wins West White
Tolerance:
Get Gold
Some Silver
Now N/A

–jeroen

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