[Boatanchors] 4 or 5 color band carbon resistors

J Forster jfor at quik.com
Sun May 13 14:18:32 EDT 2007


Not necessarily. If the extra band is yellow, it's established reliability, if
white, the resistor has weldable leads.

There are other possibilities too. There are some resistors with 4 color bands
(3 digits + 1 multiplier) then a brown (1%) or red (2%). The red or brown were
often slightly wider bands.

-John



Greg Werstiuk wrote:

> Based on the date, I assume you are speaking of Carbon Composition
> resistors.  The 5 band components would be the established reliability RCR
> series products most often used in military or other high reliability
> applications.  The fifth band specifies the Failure Rate.
>
> - Greg



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