Hall Effect Sensor IC A3144

The A3144 Hall Effect Sensor is a unipolar magnetic switch manufactured by Allegro MicroSystems, housed in a standard TO-92 package. This component detects the presence of a south magnetic pole and switches its digital output accordingly, making it ideal for position sensing, speed measurement, or rotation counting applications. Operating with a supply voltage range of 3.8 V to 24 V, it features built-in protection against voltage spikes and reverse polarity, ensuring reliability in demanding environments.