构成外径
SYV-50-1507×0.10.270.87±0.05 1.40S 1.9±0.10SYV-50-2-1507×0.160.45 1.5±0.10 2.10S 2.9±0.10SYV-50-2-2507×0.180.68 2.2±0.10 3.10S 4.0±0.20SYV-50-350单芯0.9 3.0±0.15 3.85S 5.0±0.25SYV-50-5-150单芯 1.37 4.6±0.20 5.50S 7.0±0.30SYV-50-5-250单芯 1.37 4.6±0.20 6.20D 7.8±0.30SYV-50-7-1507×0.75 2.287.3±0.258.50S 10.2±0.30SYV-50-7-2507×0.75 2.287.3±0.259.30D 11.2±0.30SYV-75-2757×0.080.24 1.5±0.10
2.10S 2.9±0.10
SFF-50-2-250单芯0.73 2.2 3.45D 4SFF-50-3-150单芯0.933 3.90S 4.5±0.25
SFF-50-3-250单芯0.933 4.75D 5.5SFF-75-175单芯0.170.87 1.45S 1.8SFF-75-1.5-1757×0.100.3 1.5 2.10S 2.55SFF-75-1.5-2757×0.100.3 1.5 2.75D 3.2SFF-75-275单芯0.41 2.2 3.2SFF-75-3-175单芯0.553 3.90S 4.5SFF-75-3-275单芯0.553 4.75D 5.5SFT-50-2-1(半刚)50单芯0.51 1.67 2.18-SFT-50-3-1(半刚)50单芯0.933 3.58-SFT-50-5-1(半刚)50单芯 1.6 5.26-SM86(半柔)50单芯0.51 1.67 2.18可选SM141(半柔)50单芯0.933 3.58可选SM250(半柔)50
单芯
1.6
5.26可选RD-178507×0.100.30.86 1.68D 2.34RD-179757×0.100.3 1.6 2.69D 3.07RD-30275单芯0.64 3.71 5.64ED-316507×0.170.51 1.52 2.22D 2.9LMR-100A
50
单芯
0.46
1.52
2.11
2.79
内导体绝缘层
屏蔽层
护套
为方便用户参考，将常用同轴电缆尺寸列表如下：表中尺寸均为标称尺寸，欲获取更详细的有关电缆的参数，请参考相关标准或制造商的说明。S：单编织屏蔽层，D：双编织屏蔽层 *铠装电缆
国内外常用同轴电缆一览表
标称阻抗
Ω
软电缆和半刚电缆(SJ1132-77,SJ498-83)LMR型电缆电缆型号
直径尺寸Φ（mm）
LMR-19550单芯0.94 2.79 3.53 4.95 LMR-20050单芯 1.12 2.95 3.66 4.95 LMR-24050单芯 1.42 3.81 4.52 6.1 LMR-30050单芯 1.78 4.83 5.727.62 LMR-40050单芯 2.747.248.1310.29 50Ω皱纹铜管电缆
1/4”(环纹铜管)50单芯 2.4 6.57.59.7 3/8”(环纹铜管)50单芯 3.38.49.511.3 1/2”(环纹铜管)50单芯 4.812.113.716 5/8”(环纹铜管)50单芯 6.615.518.522 7/8”(环纹铜管)50单芯9.122.52528 1-1/4”(环纹铜管)50单芯13.133.33639 1-5/8”(环纹铜管)50单芯17.343.546.550 1/4”超柔(螺旋铜管)50单芯 1.9 4.4 6.57.7 3/8”超柔(螺旋铜管)50单芯 2.6 6.59.110.3 1/2”超柔(螺旋铜管)50单芯 3.6 6.312.313.5 7/8”超柔(螺旋铜管)50单芯9.4－24.927.5 BT(英国电信)标准软电缆
BT300275单芯0.31 1.95 3.55 BT200275单芯0.4 2.4 5.1 BT200375单芯0.61 3.7 6.65软电缆和半刚电缆（MIL-C-17-F）
RG-5A/U50单芯 1.29 4.6 6.30D8.33 RG-6A/U75单芯0.72 4.7 6.30D8.43 RG-8/U527×0.72 2.177.248.20S10.29 RG-9/U517×0.72 2.177.118.70D10.67 RG-10/U527×0.72 2.177.248.20S12.07* RG-11/U757×0.4 1.217.248.20S1029 RG-12/U757×0.4 1.217.248.20S12.07* RG-21/U53单芯 1.29 4.7 6.30D8.43 RG-55/U53.5单芯0.81 2.95 4.20D 5.23 RG-58/U53.5单芯0.81 2.95 3.60S 4.95 RG-59B/U75单芯0.58 3.71 4.85S 6.15 RG-140/U75单芯0.64 3.71 4.47S 5.92 RG-141A/U50单芯0.99 2.95 3.71S 4.83 RG-142B/U50单芯0.99 2.95 4.34D 4.95 RG-144/U757×0.45 1.357.258.38S10.4 RG-165/U507×0.8 2.47.258.64S10.4 RG-174/U507×0.160.48 1.52 2.24S 2.54
RG-178B/U507×0.10.30.91 1.37S 2.01 RG-179B/U757×0.10.3 1.6 2.13S 2.54 RG-187/U757×0.10.3 1.52 2.13S 2.79 RG-188A/U507×0.180.51 1.52 2.06S 2.79 RG-196/U507×0.10.30.86 1.37S 2.03 RG-212/U50单芯 1.44 4.7 6.30D8.43 RG-213/U507×0.75 2.267.258.64S10.29 RG-214/U507×0.75 2.267.259.14D10.8 RG-215/U507×0.75 2.267.258.64S12.07* RG-216/U757×0.40 1.27.259.14D10.9 RG-222/U50单芯 1.41 4.7 6.30D8.43 RG-223/U50单芯0.89 2.95 4.47D 5.49 RG-225/U507×0.79 2.387.249.14D10.92 RG-303/U50单芯0.99 2.95 3.71S 4.32 RG-316/U507×0.170.51 1.52 2.06S 2.59 RG-316DT507×0.170.51 1.6 2.22D 2.8 RG-400/U5019×0.180.99 2.95 4.34D 4.95 RG-401/U50单芯 1.64 5.46- 6.35 RG-402/U50单芯0.91 3.02- 3.58 RG-405/U50单芯0.51 1.68- 2.18