resistors
I have a difficulty in identifying a five band resistor. Color sequence is red, orange, black, gold, and black. It doesn't fit in to normal rules.
Depending on the location of its use I expect that to be around 20 ohms. But I want to know if it is any how special as in low tolerance, or temperature etc.
Looks like brown black silver gold black.
According to this web page, if the fourth band is gold or silver, the 5th band is temperature coefficient.
That makes this 0.1 ohm, 5%, 250 ppm/degree K, which makes perfect sense for something like an overcurrent sense shunt.
Figure 1. Resistor colour codes. Source: elprocus.com.
From Figure 1 we can easily sort out the red-black-gold-gold as 20 x 0.1 @ 5% tolerence. i.e. 2 Ω, 5%.
The problem is the black band. I can't find any reliable reference to give it as a temperature coefficient. I suspect it's not a standard marking.
Best Answer
That is likely a wire-wound power resistor with half the windings in the opposite direction so it is non-inductive. That is what that final black band means.
Making it a 23Ω Non-inductive resistor.