AQY272AX is a flat-packaged PhotoMOS relay designed for high-capacity switching applications with a continuous load current rating of 2.0 A at 60 V peak AC/DC. The device features a compact Power-DIP4-pin form factor with dimensions of 8.8 mm (W) × 9.3 mm (D) × 3.9 mm (H), and delivers low on-resistance of 0.11 O typical, enabling efficient power transfer with minimal heat dissipation. It operates with high sensitivity, requiring only 5 mA input current to control the maximum 2 A load, and provides I/O isolation of 2,500 Vrms for safe signal isolation. The relay is suitable for measuring and testing equipment, IC testers, board testers, and high-speed inspection machines, offering reliable performance across an operating temperature range of -40°C to +85°C.