The G3VM-401FR is a low ON-resistance, single-pole, single-throw normally open (SPST-NO) MOS FET relay in a surface-mount DIP8 package. It is designed to handle a peak load voltage of 400 V and a continuous load current of 0.4 A. Key features include a maximum ON-state resistance of 5 Ω, a high dielectric strength of 2,500 Vrms between input and output, and a wide operating temperature range from -40°C to +85°C. This relay is well-suited for applications in industrial equipment, test and measurement systems, power circuits, and security equipment.