Micropower Omnipolar Hall Sensor AH3663 Hall Sensor Hall Switch Features Micropower designing; Rated supply voltage �2.4 V ~ 5.5 V; Omnipolar operating, no N or S pole in excitation magnetic field, high magnetic sensitivity, highly symmetry in positive and negative magnetic switch point; Built-in dynamic imbalance voltage compensition circuit, high temperature stability, Small temperature drift in switch point, resistant to mechanical stress and thermal stress, the power consumption is only 8W when the power supply is 2.75V; Products meet the EU RoHS instruction 2011/65 / EU and REACH regulations 1907/2006 / EU requirements.