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M17/RG-303 High Temperature Coaxial Cable – MIL-Spec 50 Ohm with PTFE Core

M17/RG-303 coaxial cable is a military-grade, high-temperature 50 Ohm coax engineered for exceptional performance in demanding RF environments. Designed to MIL-DTL-17 specifications, it features PTFE dielectric and a dual shield for superior reliability and flexibility in aerospace, defense, and lab applications.

Key Features of M17/RG-303 High Temp Coax

  • ✅ Operating temperature: -55°C to +200°C
  • ✅ Silver-plated copper-clad steel center conductor (0.037" / 22 AWG)
  • ✅ PTFE dielectric for stable electrical properties and high heat resistance
  • ✅ Dual shielding: silver-plated copper braid with 95% coverage
  • ✅ FEP jacket with overall diameter: 0.170" (4.32 mm)
  • ✅ Impedance: 50 ±2 Ohms
  • ✅ Capacitance: 29.4 pF/ft
  • ✅ Voltage rating: 1,900 VRMS
  • ✅ Attenuation @ 1 GHz: ~18.5 dB/100 ft

Applications for M17/RG-303 Coax

  • ✅ Aerospace and satellite communications
  • ✅ Military-grade RF interconnects
  • ✅ Environmental test equipment and laboratory use
  • ✅ High-temperature and high-frequency RF routing

M17/RG-303 is trusted across defense, aerospace, and research industries where precision performance is critical. Available by the foot or in bulk.