Features Rated working voltage 4.5 V ~ 24 V, the limit voltages as low as 3.5 V;Operating temperature range: -40ºC ~ 150ºC; Rated output current(sink) : 25 mA, the maximum output current(sink): 50 mASwitch response time is about 1μs, the operating frequency DC ~ 100 kHz;Small temperature drift between operating point and release point;There are variety of packages and out packing options;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  When the "S" pole of magnet faces the mark surface of the sensor and is closed to sensor (B≥Bop),the sensor outputs low level; When magnet is far from sensor(B≤ BRP), the sensor outputs high level. When the "N" pole faces the mark surface,the sensor is no response. Stable Hysteresis((BH= |BOP- BRP|)ensure the Stable sensor's switch status. The magnet and electric transfer characteristic curve is shown as the figure:
Hall sensor AH3144 is one of unipolar excitation single-ended digital output Hall IC.  The sensor chip has built-in reverse voltage protection, voltage regulators, temperature compensation circuit, Hall-voltage generator, signal amplifier, Schmitt trigger and open collector output driver circuit unit etc. Excellent voltage regulator and temperature compensation circuit ensure the sensor stable operates over a wide voltage range and temperature range, and the reverse voltage protection circuit avoids the sensor to be damaged by reverse voltage.
Limit ParameterElectrostatic Grade
Under human being mode, the Electrostatic compression is large than ±6kV.
 
Operating Condition 
Electrical CharacteristcMagnetic Characteristic
Test condition:VCC1 = VCC2 =24V,IO = 50mA 
Note 1: Unit is mT, 1mT=10Gs
Note2:  When the "S" Pole of the magnetic field is vertical to the front mark of product, we call the magnetic field B>0.