JR/Futaba servo extension cable
The JR/Futaba servo extension cable have many different wire guage, But it's always use two size is 22AWG OD1.50mm 60 strands and 26AWG OD1.20mm 30 strands cable , The color will be Black/Red/White and Brown/Red/Orange. The JR always use Brown/Red/Orange , Futaba always use Black/Red/White.
The cable in the market have flat type and twisted type, It's depend on customers request , For the cable length , It's also don't have specific restriction , It's can be custom length from 50mm to the length request. For the Male and Female terminal , It's have gold plated and Tinned plated to choose, The male connector will be always use gold plated and female connector with housing will be always use Tinned plated one, It's will infulence for the Unit price.
What is the difference between JR and Futaba servo leads? The keying tab on the Futaba J, and the fact that the corners are beveled on the JR, are the only difference
How long can a servo cable be? Servo wires can be as long as you need for your plane, I know there are people out there that have leads as long as 3 feet or more.