Cable Impedance Data: twisted_pair_Cat6 to instrument_cable
Characteristic impedance, attenuation at multiple frequencies, capacitance per foot, velocity of propagation, and signal properties for communication and control cables. Covers coaxial (RG58/RG6/RG11/RG213), twisted pair (Cat5e through Cat8), twinax, instrument cable, thermocouple extension, fiber optic (OS2/OM3/OM4), triaxial, and industrial fieldbus cables (Profibus DP, DeviceNet).
| cable type | attenuation dB per 100ft at 100MHz (dB/100ft) | attenuation dB per 100ft at 10MHz (dB/100ft) | bend radius min in (in) | capacitance pF per ft (pF/ft) | conductor gauge AWG (AWG) | impedance ohms (ohm) | jacket material | max distance ft (ft) | max frequency MHz (MHz) | max pull tension lb (lbf) | notes | shield type | velocity of propagation pct (%c) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| twisted_pair_Cat6 | 2.03 | 0.36 | 1.25 | 15 | 23 | 100 | PVC | 328 | 250 | 25 | UTP Cat6 per TIA-568-C.2; attenuation limits: 6.5 dB/100m at 10MHz; 21.9 dB/100m at 100MHz; 4-pair; 23AWG solid; 100Ω balanced; max 250MHz; 100m channel (55m for 10GBASE-T); capacitance nominally 5600 pF/100m = 17pF/ft | unshielded | 69 |
| twisted_pair_Cat6A | 1.68 | 0.31 | 1.5 | 15 | 23 | 100 | PVC | 328 | 500 | 50 | Cat6A F/UTP or U/FTP per TIA-568-C.2; 4-pair; 23AWG; 500MHz rated; supports 10GBASE-T at full 100m; shields address alien crosstalk (ANEXT); attenuation limit 19.8 dB/100m at 100MHz | braid_foil | 69 |
| instrument_cable | 2.5 | 0.4 | 3 | 35 | 16 | 100 | PVC | 1,000 | 100 | 50 | Shielded twisted pair instrument cable; 16AWG typical; foil shield with drain wire; 100Ω nominal; rated for 4-20mA / 0-10V analog signal transmission; Belden 8761 equivalent; low capacitance critical for analog accuracy; 600V rated | foil | 66 |
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