The 131-8701-251 is a Mini-75 SMB vertical PC mount jack assembly. It is designed for a 75-Ohm impedance and operates over a frequency range of 0-2 GHz. The connector features a gold-plated brass body and contact, with a Teflon insulator for high reliability. Key electrical specifications include a working voltage of 335 VRMS maximum and a dielectric withstanding voltage of 1000 VRMS minimum. With a durability of 500 mating cycles and a wide operating temperature range, this jack is ideal for high-frequency printed circuit board applications requiring a robust 75-Ohm connection.