A3144 Hall effect sensor 44E SMD SOT-23

A3144 Hall effect senso r 44E SMD SOT-23 The A3-144 Hall effect sensor 44E SMD SOT-23 is a solid-state device engineered for reliable and contactless magnetic field detection in electronic systems. Utilizing high-voltage resistance and enhanced sensitivity, this SMD component is appropriate for a wide range of switching and proximity sensing applications. Its miniature SOT-23 package enables seamless integration into modern PCBs where size and space constraints are critical. Features: High-sensitivity unipolar Hall effect switching. Small footprint SOT-23 surface-mount package. Wide operating voltage range. Digital output (open collector). Specifications: Parameter Value Model Number A3144-E44 Package SOT-23 Operating Voltage 3.5V–24VDC Output Type Digital (open collector) Output Current 25mA (max sink) Operating Temp. Range -40°C to +85°C Polarity Unipolar Switching Speed 2μs (typical) Foot print: Applications: Brushless DC motor commutation for efficient electronic speed control. Speed sensing in encoders and tachometers for rotational monitoring. Flow sensing in meters with magnetic impellers for fluid measurement. Position sensing in switches and actuators for non-contact detection. Distance sensing in proximity tools and robotic end-effectors. Current sensing in power management circuits via magnetic fields. Datasheet: A3144

A Hall effect latch works like a switch. It will latch on when the magnet is near the sensor (south pole). It will turn off if the opposite magnet pole (north pole) is applied. It can be used for counting rpm of rotating shaft or fan by putting 2 magnets with opposite poles after each others. Features 3.5V to 24V DC operation voltage Low current consumption Temperature compensation Wide operating voltage range Open-Collector pre-driver 50mA maximum sinking output current Reverse polarity protection A3144 hall effect sensor datasheet. A3144 hall effect sensor datailed tutorial to meaure fan rotaion RPM.