The 125-0801-201 is an SMPM female straight PC mount connector designed for high-frequency RF applications. It features a 50 ohm impedance with a frequency range of 0 to 40 GHz and is constructed with beryllium copper gold-plated contacts over nickel and copper plating, along with a brass gold-plated base and TEFLON insulator for superior electrical performance. The connector operates at a maximum working voltage of 325 VRMS at sea level with a dielectric withstanding voltage of 325 VRMS minimum, and maintains an insulation resistance of 5000 megohm minimum. Mechanical specifications include full detent engagement force of 4.5 lbs typical with 6.5 lbs disengagement force, contact retention of 1.5 lbs minimum axial force, and durability rated for 100 cycles minimum. The connector operates reliably across a temperature range of -65°C to +165°C and is ideal for precision RF interconnect applications in telecommunications, test equipment, and aerospace systems.