Specifications: The OPT1156G1EH is an efficient medium-current relay in a SMD-4 package, designed for applications where low conduction loss is important. It handles 1.1A at 600V (AC/DC) with a low 0.55Ω on-state resistance and provides 5000Vrms of isolation. Its switching timing includes a 1.5ms turn-on and a 50μs turn-off. Built for industrial environments, it operates from -40°C to 85°C with a 1.32-1.55VDC input.
Application Scenarios: The combination of good current handling and high efficiency makes this relay suitable for power-sensitive designs. It is used to switch battery banks in small renewable energy systems, control high-power solenoids in pneumatic systems, manage charging circuits for backup batteries, and drive strings of high-power LEDs in commercial signage, where minimizing voltage drop translates to better system efficiency and thermal management.