121583-0001 is an APD series 4-way plug connector with socket gender contacts, designed for demanding transportation applications. It features an operating voltage of 48 VDC, contact resistance of 5 mO max, and voltage proof rating of 1000 VAC for 60 seconds. The connector offers IP 67 + IP 69K sealing protection and operates over a temperature range of -40°C to 140°C with humidity tolerance up to 95% r.h. Constructed with PBT GF housing material and HNBR sealing material, it provides excellent vibration resistance rated at 300 m/s² sine and durability of 50 mating cycles. This connector is ideal for automotive and transportation systems requiring reliable electrical connections in harsh environmental conditions.