FSJ2-50

FSJ2-50, HELIAX® Superflexible Foam Coaxial Cable, corrugated copper,

Product Classification
Product Type Coaxial wireless cable

Product Brand HELIAX® | SureFlex®

Product Series FSJ2-50

General Specifications
Flexibility Superflexible

Jacket Color Black

Performance Note Attenuation values typical, guaranteed within 5%

Dimensions
Diameter Over Dielectric 7.112 mm | 0.28 in

Diameter Over Jacket 10.541 mm | 0.415 in

Inner Conductor OD 2.794 mm | 0.11 in

Outer Conductor OD 9.652 mm | 0.38 in

Nominal Size 3/8 in

Electrical Specifications
Cable Impedance 50 ohm ±1 ohm

Capacitance 79.7 pF/m | 24.293 pF/ft

dc Resistance, Inner Conductor 4.232 ohms/km | 1.29 ohms/kft

dc Resistance, Outer Conductor 4.987 ohms/km | 1.52 ohms/kft

dc Test Voltage 2300 V

Inductance 0.2 µH/m | 0.061 µH/ft

Insulation Resistance 100000 MOhms-km

4000 V Page 1 of 4

©2022 CommScope, Inc. All rights reserved. All trademarks identified by ® or ™ are registered trademarks,
respectively, of CommScope. All specifications are subject to change without notice. See www.commscope.com for the
most current information. Revised: March 15, 2022
FSJ2-50
Jacket Spark Test Voltage (rms) 4000 V

Operating Frequency Band 1 – 13400 MHz

Peak Power 13.2 kW

Velocity 83 %

Attenuation
Frequency (MHz) Attenuation (dB/100 m) Attenuation (dB/100 ft) Average Power (kW)
1.0 0.383 0.117 13.2
1.5 0.469 0.143 13.2
2.0 0.542 0.165 13.2
10.0 1.219 0.372 6.97
20.0 1.732 0.528 4.91
30.0 2.128 0.649 3.99
50.0 2.762 0.842 3.08
85.0 3.626 1.105 2.34
88.0 3.691 1.125 2.3
100.0 3.943 1.202 2.16
108.0 4.103 1.25 2.07
150.0 4.864 1.482 1.75
174.0 5.254 1.601 1.62
200.0 5.65 1.722 1.5
204.0 5.709 1.74 1.49
300.0 6.99 2.13 1.22
400.0 8.139 2.481 1.04
450.0 8.665 2.641 0.98
460.0 8.767 2.672 0.97
500.0 9.166 2.794 0.93
512.0 9.283 2.829 0.92
600.0 10.107 3.081 0.84
700.0 10.983 3.347 0.77
800.0 11.807 3.599 0.72
824.0 11.998 3.657 0.71
894.0 12.542 3.823 0.68
960.0 13.04 3.974 0.65
1000.0 13.334 4.064 0.64

14.861 4.529 0.57 Page 2 of 4

©2022 CommScope, Inc. All rights reserved. All trademarks identified by ® or ™ are registered trademarks,
respectively, of CommScope. All specifications are subject to change without notice. See www.commscope.com for the
most current information. Revised: March 15, 2022
FSJ2-50
1218.0 14.861 4.529 0.57
1250.0 15.075 4.595 0.56
1500.0 16.68 5.084 0.51
1700.0 17.887 5.452 0.48
1794.0 18.436 5.619 0.46
1800.0 18.47 5.629 0.46
2000.0 19.599 5.974 0.43
2100.0 20.147 6.141 0.42
2200.0 20.685 6.305 0.41
2300.0 21.214 6.466 0.4
2500.0 22.247 6.781 0.38
2700.0 23.249 7.086 0.37
3000.0 24.701 7.529 0.34
3400.0 26.558 8.094 0.32
3600.0 27.456 8.368 0.31
3700.0 27.899 8.503 0.3
3800.0 28.337 8.637 0.3
3900.0 28.771 8.769 0.3
4000.0 29.201 8.9 0.29
4100.0 29.628 9.03 0.29
4200.0 30.051 9.159 0.28
4300.0 30.47 9.287 0.28
4400.0 30.886 9.414 0.28
4500.0 31.298 9.539 0.27
4600.0 31.708 9.664 0.27
4700.0 32.114 9.788 0.26
4800.0 32.518 9.911 0.26
4900.0 32.919 10.033 0.26
5000.0 33.316 10.154 0.26
6000.0 37.158 11.325 0.23
8000.0 44.264 13.491 0.19
8800.0 46.943 14.308 0.18
10000.0 50.826 15.491 0.17
12000.0 57.001 17.373 0.15

Material Specifications
Page 3 of 4

©2022 CommScope, Inc. All rights reserved. All trademarks identified by ® or ™ are registered trademarks,
respectively, of CommScope. All specifications are subject to change without notice. See www.commscope.com for the
most current information. Revised: March 15, 2022
FSJ2-50
Dielectric Material Foam PE

Jacket Material PE

Inner Conductor Material Copper-clad aluminum wire

Outer Conductor Material Corrugated copper

Mechanical Specifications
Minimum Bend Radius, multiple Bends 25.4 mm | 1 in

Minimum Bend Radius, single Bend 25.4 mm | 1 in

Number of Bends, minimum 20

Number of Bends, typical 50

Tensile Strength 95 kg | 209.439 lb

Bending Moment 2.3 N-m | 20.357 in lb

Flat Plate Crush Strength 1.8 kg/mm | 100.795 lb/in

Environmental Specifications
Installation temperature -40 °C to +60 °C (-40 °F to +140 °F)

Operating Temperature -55 °C to +85 °C (-67 °F to +185 °F)

Storage Temperature -70 °C to +85 °C (-94 °F to +185 °F)

Attenuation, Ambient Temperature 68 °F | 20 °C

Average Power, Ambient Temperature 104 °F | 40 °C

Average Power, Inner Conductor Temperature 212 °F | 100 °C

Packaging and Weights

Regulatory Compliance/Certifications
Agency Classification
CHINA-ROHS Below maximum concentration value
ISO 9001:2015 Designed, manufactured and/or distributed under this quality management system
ROHS Compliant

Page 4 of 4

©2022 CommScope, Inc. All rights reserved. All trademarks identified by ® or ™ are registered trademarks,
respectively, of CommScope. All specifications are subject to change without notice. See www.commscope.com for the
most current information. Revised: March 15, 2022