The A3144 family Hall effect sensors are unipolar, digital output devices that detect magnetic fields and convert the detection into a logic signal. This listing offers a 10piece lot of A3144, A3144E, and A3144EUA 44E Hall effect sensors. They are designed for compact, PCBmounted applications and provide reliable, non contact sensing with no moving parts. Key benefits Non contact sensing with no mechanical wear, extending product life in moving or rotating assemblies Fast response to magnetic field changes for accurate position, alignment, or speed sensing Simple digital output that interfaces easily with microcontrollers and other logic devices Opencollector style output commonly used with pullup configurations for flexible interfacing Versatile, widely used part family suitable for a range of sensing tasks and readily available in quantity Key attributes Functionality: unipolar Hall effect switch with digital output for magnetic field detection Operation: triggers on a magnetic field of sufficient strength in the sensing direction; produces a logic signal when activated Magnetic sensitivity: designed to respond to a single polarity magnetic field Package and mounting: threeterminal device suitable for PCB mounting in compact designs Compatibility: compatible with standard logic levels and microcontroller inputs; suitable for common automation and consumer electronics circuits Size and form: compact form factor appropriate for spaceconstrained applications Performance: solidstate sensing with no physical contact, providing reliable operation in typical environments Applications and use cases Rotary speed sensing and position encoding: attach a magnet to a rotating shaft and detect passing poles to generate pulses for RPM measurement or angular position Magnetic proximity and endstop sensing: position magnets near mechanical stops or housings to indicate presence, alignment, or limit detection in automation, robotics, or door/gate sensors Proximity sensing in printers, CNC machines, or consumer electronics: detect magnet presence to determine carriage, lid, or component position without mechanical switches What you get 10 pieces of A3144 family Hall effect sensors (A3144, A3144E, A3144EUA 44E variants) in a single lot Each unit provides a threeterminal Hall effect sensor with digital output for easy integration Interfacing and usage notes Output is digital and typically requires a pullup resistor when used with an opencollector style configuration Connect Vcc to the system supply, GND to common ground, and Output to the microcontroller or logic input Position magnets according to the sensor's sensing direction to ensure reliable triggering Consider shielding and magnetic field management to minimize interference from stray fields in the operating environment Care and handling Handle devices to minimize electrostatic discharge; store in protective packaging when not in use Ensure magnets used are within practical field ranges and oriented correctly for consistent performance Use within the recommended operating conditions for temperature and humidity typical of Hall effect sensors This description preserves the brand alignment and features of the A3144 family while presenting clear, practical details for engineers and buyers evaluating a 10piece lot of A3144/A3144E/A3144EUA 44E Hall effect sensors.