The OH549E with Magnetic Sensors SOT-89 (SOT-89-3) RoHS is a three-terminal transducer manufactured by Ouzhuo that uses a combination of magnetic and Hall effect sensors to detect changes in magnetic fields. It is designed to detect the presence or absence of magnetic materials in proximity to its sensing area. Its output is a TTL, CMOS, or Open Collector, and is compatible with 5V or 3.3V logic circuits, and can be used with any microcontroller, logic IC, or transistor circuit. The SOT-89-3 package is RoHS compliant and includes ESD protection components for added reliability. This component is ideal for applications in home appliances, automotive and industrial applications, where its low power consumption and low cost are essential.