AQY212G2SX
Overview
The AQY212G2SX is a high-capacity PhotoMOS solid-state relay designed to switch AC or DC loads up to 60V. It features a 1 Form A (SPST-NO) configuration in a compact 4-SOP package, providing 1.25A of continuous load current with very low on-resistance. This photorelay uses an internal LED and optical coupling to achieve high isolation between the control input and the output switch.
Why Choose This Part
Choosing the AQY212G2SX offers significant reliability benefits over electromechanical relays, including silent operation, no contact bounce, and an almost infinite switching lifecycle. Its 1.25A current rating in a small 4-SOP footprint allows for high-density PCB layouts without sacrificing power handling.
Applications
Key Specifications
Getting Started
To drive the input, use a current-limiting resistor calculated for the 1.32V forward voltage at the desired trigger current, typically around 5mA to 10mA for reliable switching. Ensure the PCB layout maintains creepage and clearance distances between the input (pins 1-2) and output (pins 3-4) to preserve the high isolation rating.
