Belden 84142 Mil-Spec RG-142 Coaxial Cable - 50 Ohm Double Shielded
Professional-grade military specification coaxial cable designed for demanding aerospace and wireless communication applications. This Belden 84142 RG-142 cable features a 19 AWG solid silvered copper covered steel conductor with PTFE insulation and double 95% silvered copper braid shielding for superior performance and signal integrity.
Key Features
Premium Construction: Built with a solid 18 AWG (0.037") silvered copper covered steel conductor surrounded by PTFE (Polytetrafluoroethylene) insulation. The double-layer 95% silvered copper braid shield provides exceptional EMI/RFI protection, while the FEP (Fluorinated Ethylene Propylene) jacket offers excellent chemical and temperature resistance.
Superior Electrical Performance: 50 Ohm characteristic impedance with 70% velocity of propagation ensures optimal signal transmission. Low attenuation characteristics across a wide frequency range (1 MHz to 12.4 GHz) make this cable ideal for high-frequency applications. Capacitance rated at 29 pF/ft with minimal signal loss.
High Power Handling: Capable of handling substantial power levels - 3,500W at 50 MHz, 2,400W at 100 MHz, and 1,100W at 400 MHz. Maintains reliable performance even at higher frequencies with 650W at 1 GHz and 180W at 8 GHz.
Extreme Temperature Rating: Operating temperature range of -70°C to +200°C (-94°F to +392°F) with UL temperature rating of 200°C. This wide temperature tolerance makes it suitable for harsh environmental conditions and aerospace applications.
Plenum Rated (CMP): Meets NFPA 262 flammability standards with CMP (Communications Plenum) rating, approved for installation in air handling spaces. UL rated at 300V with Mil-Spec voltage rating of 1400V.
Technical Specifications
Cable Type: RG-142 Mil-Spec Coaxial
Impedance: 50 Ohm
Conductor: 18 AWG Solid Silvered Copper Covered Steel (SCCS)
Insulation: PTFE (White)
Shielding: Double 95% Silvered Copper Braid
Jacket: FEP (Fluorinated Ethylene Propylene)
Overall Diameter: 0.195" (4.95 mm)
Velocity of Propagation: 70%
Capacitance: 29 pF/ft (95 pF/m)
VSWR: Per M17/60-RG142 (1 MHz - 12.4 GHz)
Bend Radius: 2" (51 mm) minimum
Pull Tension: 146 lbs (66.2 kg) maximum
Cable Weight: 42 lbs/1000 ft
Attenuation Performance
Low signal loss across frequency range: 0.3 dB/100ft at 1 MHz, 3.9 dB/100ft at 100 MHz, 11.0 dB/100ft at 700 MHz, 13.5 dB/100ft at 1 GHz, 24.3 dB/100ft at 3 GHz, and 43.2 dB/100ft at 8 GHz.
Applications
Ideal for aerospace wireless communication systems, military radio equipment, high-frequency test equipment, radar systems, antenna feed lines, and any application requiring reliable 50 Ohm coaxial cable performance in demanding environments. Suitable for indoor plenum spaces, outdoor installations with proper support, and aerial applications when supported by messenger wire.
Compliance and Certifications
Meets multiple regulatory standards including NEC/UL CMP, NFPA 262, EU CE Mark, RoHS 2 (2011/65/EU and 2015/863/EU amendment), REACH, WEEE (2012/19/EU), California Proposition 65, and China RoHS II (GB/T 26572-2011). Commercial non-QPL product per M17/60-RG142 specification.
Installation Notes
Maintain minimum bend radius of 2 inches during installation to prevent cable damage. Maximum pull tension should not exceed 146 lbs. Suitable for sunlight exposure and outdoor use when properly supported. Environmental rating includes plenum, indoor, outdoor, and aerial installations with messenger wire support.
Note: This is a commercial, non-QPL (Qualified Products List) version of the M17/60-RG142 specification, offering mil-spec performance for commercial applications.
