RG178B/U Bulk Coaxial Cable (by the foot) Ultra-Miniature High-Temperature RF Coaxial Cable This ultra-miniature 50-Ohm RG178B/U coaxial cable offers high-temperature performance (-55°C to +200°C) in a sub-1.80 mm profile. Housed in a brown FEP jacket, it features a stranded silver-plated copper-clad steel conductor, solid PTFE dielectric, and a dense silver-plated copper braid shield. With a tight 0.4-inch bend radius and support up to 3 GHz, it is optimized for space-constrained wireless modules, aerospace avionics, and medical instrumentation. Specifications Specification Value Component Type Bulk Coaxial Cable (Sold by the Foot) Cable Type / Series RG-178B/U (Ultra-Miniature High-Temperature) Impedance 50 Ohm Inner Conductor 7 Strands x 0.004 in (0.10 mm) Stranded Silver-Plated Copper-Clad Steel Dielectric Material Solid Extruded Polytetrafluoroethylene (PTFE / Teflon™) Shielding Type Single Braid Shielding Material Silver-Plated Copper Braid (approx. 95% coverage) Outer Jacket Material Fluorinated Ethylene Propylene (FEP), Tinted Brown Overall Outer Diameter 0.071 inches (1.80 mm) Maximum Frequency Up to 3 GHz Velocity of Propagation 69.5% (Nominal) Minimum Bend Radius 0.4 inches (10.16 mm) for standard installation Operating Temperature -55°C to +200°C Application Micro-Miniature Jumpers, Internal Wireless Modules, Avionics, Medical Instrumentation
