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Help find a low capacitance miniature coax cable?

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cvanc:
Currently using RG174 which is tiny and flexible and 31pF/foot.  I've looked for other small coax with less capacitance but came up empty.

I can use something larger if needed, but all I've found that has significantly lower C was almost a half inch in diameter; that's too big.

Am I missing a good candidate somewhere, or is RG174 about as good as it gets?

Impedance does not matter - it will carry analog audio.  Thanks...

Mechatrommer:
why do you care at capacitance if its only for audio? there are much smaller 1.13mm dia coax in ebay, but about the same capacitance as stated. i think a pair of audio or twisted wires is much lower capacitance.

cvanc:

--- Quote from: Mechatrommer on March 14, 2020, 04:58:15 pm ---why do you care at capacitance if its only for audio?
--- End quote ---

Fairly long runs; they're about 30ft/10m

daqq:
Try the higher Z0 ones, such as https://www.mouser.sk/datasheet/2/46/89269-84006.pdf , with 12.8pF/ft.

Someone:

--- Quote from: cvanc on March 14, 2020, 05:08:21 pm ---
--- Quote from: Mechatrommer on March 14, 2020, 04:58:15 pm ---why do you care at capacitance if its only for audio?
--- End quote ---
Fairly long runs; they're about 30ft/10m
--- End quote ---
Audio bandwidth into 1nF still isn't hard and would be typical of normal balanced+shielded audio cable for those lengths.

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