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RG142 Coax Cable

RG142 Cable

RG142 Coaxial Cable

Buy RG142 Cable Online


What is RG142?

RG142 high-temperature coax cable is used in interconnections between telecommunications equipment and is widely used for commercial wireless applications. It also works very well in sensitive environments with minimal space such as avionic bays. Specific applications of this cable include radar, GPS and medical systems. Because it is approved for direct burial, this coaxial cable can be implemented in sophisticated underground connections while still holding a good shielding effectiveness. For more uses on RG 142 cable see the below links:

RG142 Coax Cable Electrical Specifications:

  • Maximum Operating Voltage (vms): 1,900
  • Capacitance: 29.4 (pF/ft)
  • Impedance: 50 ohms (+/-2)
  • Maximum Operating Voltage (pF/m): 1,900 volts
  • Maximum Operating Frequency: 8000 MHz
  • RF Shielding, dB: 90
  • Velocity of Propagation: 69.21%
  • Shielding efficacy: 1GHz(dB/ft) >60
  • Mil Spec Equivalent: M17/60-RG142
  • Maximum Frequency (MHz): 8000
  • DC Resistance (ohms/1000ft): Center: 19.1 | Outer 2.22
  • Power (w) 400 MHz: 1100

Mechanical & RG142 Coax Cable Specifications:

RG142 Coax Diagram
  • Inner Conductor:
    • Material: Silver-coated Copper Clad Steel (SCCS)
    • Diameter (in.) 0.037
    • Diameter (mm.) 0.94

  • Dielectric:
    • Material: Extruded Solid Polytetrafluoroethylene (PTFE)
    • Diameter (in.) 0.116
    • Diameter (mm.) 2.95

  • Outer Conductor:
    • Count: 2 Braid Shields (36 AWG stand)
    • Material: Silver Plated Copper
    • Diameter (in.) 0.162
    • Diameter (mm.) 4.11

  • Jacket:
    • Material: Extruded Solid Fluorinated Ethylene Propylene (FEP-IX)
    • Diameter (in.) 0.195
    • Diameter (mm.) 4.95

  • Additional specifications:
    • Weight: 43.0 lb/ft
    • Minimum Operating Temperature: -55°C
    • Maximum Operating Temperature: 200°C
    • Overall Diameter (in.) 0.195
    • Bend Radius: 1.0"

Use in the military

The RG142 cable was specifically built for the United States Military in the World War II era. It has a military equivalent part number of M17/60-RG142. This part number gives the United States Military an excellent option to use the highly reliable RG142 in their satellites, systems, and other tactical operations and equipment. Because of the obvious importance in these cables, the military requires them to have minimum and maximum dielectric adhesion values, specific shrink back allowance, eccentricity standardizations, stress crack resistance tests, and many more specifications that add to the durability and reliability of the RG142. All trusted manufacturers will produce the same high-quality RG142 because of its high QPL, which demands stability and rigidity in the testing and construction of specs and authenticity.

Benefits of the RG-142

RG142 meets all MIL-C-17 specifications and utilizes standard connectors, so proprietary or exotic pieces are not required to build its infrastructure. RG142 also has good shielding effectiveness (between 40 and 60 db) and has Low Passive Intermod (PIM) degradation of signal quality which is kept to a minimum. Since the RG142 is made with a solid dielectric this allows a high rate of crush resistance, which makes it the coax of choice for tactical operations and applications. Even though the RG142 isn't your most phase stable wire, the phase stability can be enhanced through preconditioning in the specific temperature ranges of your project.


RG142 Loss Attenuation Specifications by Frequency

Frequency (MHz) Attenuation (db per 100 feet)
10 1.2
30 2.1
50 2.7
100 4
400 8
1000 13
1500 16
2000 19
2500 21
3000 24
10000 49
k1 0.368
k2 0.00120

The RG142 loss is widely accepted at HF frequencies. Because it is constructed with a silver plated outer conductor this prevents oxidation of the conductor which decreases loss vs time.

Power Handling by Frequency

Frequency (MHz) Power (watts)
10 5601
30 3206
50 2468
100 1726
400 831
1000 504
1500 401
2000 340
2500 298
3000 267
10000 125

The RG142 has first-rate power handling capabilities due to the solid dielectric materials.

Selling on the go? Take the RG142 datasheet anywhere:

PDF of RG142 Specs Download the printable RG142 datasheet from Allied Wire & Cable

Other coaxial cable suggestions

Other coax cables Allied Wire & Cable supplies include:

These are just a few examples. There are thousands of different coaxial cables and customized orders you can place with us. For a more extensive list of all of the coax cables we provide, visit our Coaxial Cable page.

Please Note: Per specification, RG142 cable will have splices. If continuous lengths are needed, just let our representative know.

Part Number Conductor StrandingNom. Dia. of Cond.Dielectric (in)Nom. O.D. (in)Nom. Imp.Nom. Cap. (pF/ft)Approx LBS/MFT
RG142 Solid 0.0359 0.116 0.1950 50.0 29.4 43.00