SC1138 Low Sensitivity Unipolar Switch Hall Sensor IC



The SC1138 Hall-Effect switch series is monolithic integrated circuits with tighter magnetic specifications, designed to operate continuously over extended temperatures to +150℃, and are more stable with both temperature and supply voltage changes. The negative compensation slope is optimized to match the negative temperature coefficient of low-cost magnets.
Each device includes a voltage regulator for operation with supply voltages of 3.8 to 40V volts, quadratic Hall-voltage generator, temperature compensation circuitry, small-signal amplifier, Schmitt trigger, and an open-collector output to sink up to 40mA.


  • 3.8 to 40V supply voltage
  • High transient voltage protection
  • 40mA sinking capability
  • High ESD rating
  • 3-pin SIP, and SOT23-3 packages are available
  • Operate/release points symmetrical around zero gauss
  • RoHs compliant

Seal & Selection

Item Packing Seal Working Temperature Marking
SC1138UA 1000pcs/Bag SIP3 -40℃ to 150℃ 1138
SC1138SO-N 3000pcs/Reel SOT23 -40℃ to 150℃ 1138

Demo Boards

Tool & Source