The HS43F unipolar switch type Hall position sensor is a magnetic sensing circuit composed of an internal voltage regulator, a Hall voltage generator, a differential amplifier, a temperature compensation unit, a Schmitt trigger and a collector open circuit output stage. Its input is the magnetic induction intensity and the output is a digital voltage signal. It is a magnetic sensing circuit working with a single magnetic pole, suitable for working under rectangular or cylindrical magnets. The operating temperature range is -40 ℃ ~ 150 ℃, the power supply voltage operating range is 3.8V ~ 30V, the load current capability can reach up to 50mA, and the package form is SIP3L (TO92S).