Honeywell SM351LT Magnetic Sensors: Magnetoresistive (MR) Sensor ICs, Nanopower Series, High Sensitivity (7 G typical operate, 11 G maximum operate), Omnipolar Sensing, 1.65 Vdc to 5.5 Vdc, Operating Temperature Range -40 °C to 85 °C [-40 °F to 185 °F], SOT-23 Package, Tap