Coax cable characterization/coax molex 1000650128

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Cable specifications

Property Value
profile type cable
profile id coax_molex_1000650128
name Molex 40 AWG Coax
manufacturer Molex
part number 100065-0128
mouser part number 538-100065-0128
characteristic impedance ohm 50
wire gauge awg 40
shield type Strand
connector type a SMA
connector type b SMA
cable type coaxial

Round-trip resistivity

Measured round-trip resistivity: 4.4952 ohm/m (single_length_ratio, n=1 lengths).

SerDes signal integrity

Length (mm) Channel Rate (Gbps) Eye area Eye height (mV) Eye width (ps) Margin floor (mV) Sessions
170 forward 3 0.223633 196.875 200 1
170 forward 6 0.148438 177.188 100 1
170 reverse 0.1875 0.109375 68.906 90 1
500 forward 3 0.170654 118.125 50 1
500 forward 6 0.114502 137.812 180 1
500 reverse 0.1875 0.117676 78.75 110 1
1025 forward 3 0.187012 187.031 50 1
1025 forward 6 0.093018 118.125 290 1
1025 reverse 0.1875 0.093018 59.062 150 1

Eye diagrams

eye_fwd_3g (coax_molex_1000650128/1025mm/serdes/20260618_01)
eye_fwd_6g (coax_molex_1000650128/1025mm/serdes/20260618_01)
eye_rev_187m (coax_molex_1000650128/1025mm/serdes/20260618_01)
eye_fwd_3g (coax_molex_1000650128/170mm/serdes/20260618_01)
eye_fwd_6g (coax_molex_1000650128/170mm/serdes/20260618_01)
eye_rev_187m (coax_molex_1000650128/170mm/serdes/20260618_01)
eye_fwd_3g (coax_molex_1000650128/500mm/serdes/20260618_01)
eye_fwd_6g (coax_molex_1000650128/500mm/serdes/20260618_01)
eye_rev_187m (coax_molex_1000650128/500mm/serdes/20260618_01)
Eye opening vs cable length
Link margin vs cable length

RF attenuation (VNA)

Length (mm) Mean worst insertion loss (dB) Worst insertion loss (dB) Sessions
170 -10.1116 -10.1116 1
500 -14.851 -14.851 1
1025 -20.2075 -20.2075 1
1500 -23.584 -23.584 1
Attenuation vs frequency
Characteristic impedance vs frequency

Resistance measurements

Length (mm) Round-trip ohm/m (mean) Round-trip ohm/m (std) Sessions Measurements
500 4.4952 nan 1 3

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