SM351LT Honeywell, Omnipolar Magnetoresistive Sensor, 3-Pin SOT-23

The Nanopower Series Magnetoresistive Sensor ICs are designed for a wide range of applications due to their ultra-sensitive nature. They can be used in applications with large air gaps, small magnetic fields and where there is a low power requirement. Instillation is simplified as they do not require the magnetic polarity to be identified and they will respond to either the north or south pole applied in a direction parallel to the sensor which potentially could help reduce system costs. The sensors are very efficient and can be operated on a supply voltage as low as 1.65 V with a very low average current consumption and a push-pull output which does not require a pull-up resistor, again reducing costs.

Potential Applications
Industrial:
Mobile equipment (i.e., handheld computing equipment, scanners)
Water, electric and gas utility meters
Building access control; reed switch replacement for battery-operated security systems
Industrial smoke detectors
Medical:
Exercise equipment
Infusion pumps
Drawer position sensing (e.g., medical cabinets)
Hospital beds
White Goods:
Lid, door and drawer position detection
Fluid flow
Medium-sized Consumer Electronics:
Battery-optimization position sensor

High sensitivity: 7 Gauss typ., 11 Gauss max.
Nanopower: Average current of 360 nA typ.
Supply voltage range: 1.65 Vdc to 5.5 Vdc
Omnipolar sensing
Temperature range: -40 °C to 85 °C
Push-pull output
Non-chopper stabilized design
Package: SOT-23

RoHS-compliant materials: Meets Directive 2002/95/EC

Magnetoresistive Sensors, Honeywell