Linear hall sensor ah3509 Hall sensor Hall switch features Rated working voltage 4.5 v ~ 6 v, Operating temperature range: -40 ~ 125; Rail to rail voltage output, rated output current : 6 ma , Variety of package forms and outer packings for your choice. No mechanical contact, no spark, switch signal stability, no shaking moment, high reliability and safety; Products meet the eu rohs instruction 2011/65 / eu and reach regulations 1907/2006 / eu requirements Outline The sensor will pass linear area /nonlinear area/ saturation area during the magnetic induction increases. When there is no magnetic field that applies in sensor (b=0), when the output voltage of sensor is only half of vcc (vcc/2); when n pole faces mark surface of sensor, and be closed to it gradualy (b-, the output voltage begins to decrease, and the voltage doesnt reduce with the increased magnetic field; when the s pole of magnet faces the mark surface of the sensor and is closed to sensor gradualy b+, the output voltage of sensor begins to increase, and it doesnt increase with the increased magnetic field after it reaches saturation voltage.