The 133-3701-621 is a flange-mount MCX jack assembly with an extended dielectric, designed for high-frequency signal transmission. It features a gold-plated brass body and a gold-plated beryllium copper center contact, ensuring reliable electrical connection and corrosion resistance. The connector is specified for a 50 Ohm impedance and operates over a frequency range of 0-6 GHz. Key electrical characteristics include a working voltage of 335 VRMS, a dielectric withstanding voltage of 1000 VRMS, and an insulation resistance of 10,000 Megohms minimum. With a durability rating of 500 cycles and a wide operating temperature range of -65°C to 165°C, this jack is suitable for demanding applications in telecommunications, instrumentation, and aerospace equipment.