Cable Impedance Data: coaxial_RG58 to twisted_pair_Cat5e
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) | attenuation dB per 100ft at 1GHz (dB/100ft) | attenuation dB per 100ft at 1MHz (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) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| coaxial_RG58 | 4.9 | 1.4 | 21.5 | 0.4 | 1.5 | 28.5 | 20 | 50 | PVC | 660 | 1,000 | 90 | MIL-C-17 RG-58C/U; solid center conductor 20AWG; nominal capacitance 28.5 pF/ft; 66% VP (polyethylene dielectric); rated to 1000V DC; 5/16-in OD (0.195-in); commonly used for Ethernet thin-net (10BASE2) and RF test leads | braid | 66 |
| coaxial_RG6 | 2 | 0.6 | 6.1 | 0.2 | 3 | 16.2 | 18 | 75 | PVC | 2,000 | 1,000 | 50 | Quad-shield available; 18AWG center; 82% VP (foam polyethylene); typical CATV/satellite/broadband distribution cable; 75Ω CATV standard; F-connector applications | braid_foil | 82 |
| coaxial_RG11 | 1.6 | 0.4 | 5.6 | 0.1 | 4.5 | 17 | 14 | 75 | PVC | 4,000 | 1,000 | 150 | 14AWG center conductor; large diameter (0.405-in); 78% VP (foam PE); lower loss than RG6 for long trunk runs; used in CATV trunk and hard-line distribution; F-connector or N-connector | braid_foil | 78 |
| coaxial_RG213 | 2.2 | 0.6 | 8.3 | 0.2 | 5 | 30.8 | 13 | 50 | PVC | 1,000 | 1,000 | 200 | MIL-C-17 RG-213/U equivalent; 13AWG stranded center (7x#21 AWG); solid polyethylene dielectric; 66% VP; 50Ω; higher power rating than RG58; N-connector; used in amateur radio, EMC test | braid | 66 |
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