HC-M-04-BU-KOAX-50 - Phoenix Contact
Coaxial contact - HC-M-04-BU-KOAX-50 - 1676802; Coaxial contact, contact diameter: 4.8 mm, turned, Socket, contact material: Copper alloy, contact surface: gold-plated, connection cross section: 0.14 mm² ... 2.5 mm² AWG 26 ... 14, Wave impedance: 50 Ω