Datasheet
58
®
®
www.lemo.com
Note: collet nut tightening torque: maximum 0.25 Nm (1N = 0.102 kg)
Component
Earthing sleeve
Collet
Crimp ferrule
Collet nut
Surface Treatment
(µm)
Material (Standard)
Cu Ni
Brass (UNS C 38500) 0.5 3
Brass (UNS C 38500) 0.5 3
Copper (UNS C 18700) 0.5 3
Brass (UNS C 38500) 0.5 3
Material and Treatment
Return Transmiss. Reflected Transmit. Reflected
loss loss voltage power power
(dB) (dB) coefficient (%) (%)
VSWR
(dB)
Return Transmiss. Reflected Transmit. Reflected
loss loss voltage power power
(dB) (dB) coefficient (%) (%)
VSWR
(dB)
0 0.000 0.00 100.0 0.0
0.1 46.1 0.000 0.00 100.0 0.0
0.2 40.1 0.000 0.01 100.0 0.0
0.3 36.6 0.001 0.01 100.0 0.0
0.3 34.2 0.003 0.03 100.0 0.0
0.4 32.3 0.003 0.02 99.9 0.1
0.5 30.7 0.004 0.03 99.9 0.1
0.6 29.4 0.005 0.03 99.9 0.1
0.7 28.3 0.006 0.04 99.9 0.1
0.7 27.3 0.008 0.04 99.8 0.2
0.8 26.4 0.010 0.05 99.8 0.2
0.9 25.7 0.012 0.05 99.7 0.3
1.0 24.9 0.014 0.06 99.7 0.3
VSWR effect on transmitted power
VSWR
1.00
1.01
1.02
1.03
1.04
1.05
1.06
1.07
1.08
1.09
1.10
1.11
1.12
1.1 24.3 0.016 0.06 99.6 0.4
1.1 23.7 0.019 0.07 99.6 0.4
1.2 23.1 0.021 0.07 99.5 0.5
1.3 22.6 0.024 0.07 99.5 0.5
1.4 22.1 0.027 0.08 99.4 0.6
1.4 21.7 0.030 0.08 99.3 0.7
1.5 21.2 0.033 0.09 99.2 0.8
1.6 20.8 0.036 0.09 99.2 0.8
1.7 20.4 0.039 0.10 99.1 0.9
1.7 20.1 0.043 0.10 99.0 1.0
1.8 19.7 0.046 0.10 98.9 1.1
1.9 19.4 0.050 0.11 98.9 1.1
1.9 19.1 0.054 0.11 98.8 1.2
VSWR
1.13
1.14
1.15
1.16
1.17
1.18
1.19
1.20
1.21
1.22
1.23
1.24
1.25
Technical tables
Cable Fixing
Cable fixing onto LEMO connectors is determined by the connector model. This is achieved either with a cable collet
system or with hexagonal crimping (MIL-C-22520F, type 2).
The collet system cable fixing is made without any special tooling. The crimping method guarantees a good electrical
continuity of the shield which improves greatly the shielding efficiency of the cable/connector link.










