I have some small diameter coaxial cable, which we use in harsh environments. I want to buy connectors for it. Most suppliers list thousands of connectors by cable designation, so finding compatible connectors can be a pain if you don't know the number.
The layup of the cable is:
- Inner conductor: 0.2mm/0.008" diameter stranded copper
- Insulation: PTFE or FEP, 0.4mm/0.016"
- Shield: braided copper, 12x100um wires
- Jacket: PTFE or FEP, 1mm/0.04"
Anyone know what RG number, or Belden number I should select on my supplier's website? If anyone can post a link to a huge chart of coax designations and diameters, even better.
Best Answer
Look through a table of RG type specifications and find the closest match you can for inner and outer diameters, also matching the characteristic impedance. Then search for connectors that fit that RG type.
Be warned that the RG specifications were developed a long time ago and AFAIK there's no new RG types being introduced since many years ago. So microminiature cable types may not be covered by any RG type. Which will put you right back where you started, having to check each connector datasheet or a selection guide for the range of i.d. and o.d. they accept.