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Home » NEWEST Products » New by Manufacturer » Honeywell » Honeywell Nanopower Sensors
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Honeywell Nanopower Series Magnetoresistive (MR) Sensor ICs

Honeywell Nanopower Series
Magnetoresistive (MR) Sensor ICs

Honeywell Nanopower Series Magnetoresistive (MR) Sensor ICs are ultra-sensitive devices designed to accommodate a wide range of applications with large air gaps, small magnetic fields and low power requirements. The sensor ICs respond to either a North or South pole applied in a direction parallel to the sensor. They do not require the magnet polarity to be identified, simplifying installation and potentially reducing system cost. These sensor ICs use a very low average current consumption and a push-pull output which does not require a pull-up resistor. The sensor ICs can operate from a supply voltage as low as 1.65V, promoting energy efficiency. The Nanopower Series is available in two magnetic sensitivities to accommodate a variety of application needs: SM351LT: For applications requiring ultra high magnetic sensitivity (7G typical operate, 11G maximum operate) and a very low current draw (360nA typical). SM353LT: For applications requiring very high magnetic sensitivity (14G typical operate, 20G maximum operate) and a very low current draw (310nA typical). These Magnetoresistive Sensor ICs, Nanopower Series, are supplied in the sub-miniature SOT-23 surface mount package on tape and reel (3000 units per reel), for use in automated pick-and-place component installation.

Key Features
  • High sensitivity: 7 Gauss typ., 11 Gauss max. (SM351LT); 14G typ., 20 Gauss max. (SM353LT)
  • Nanopower: Average current of 360nA typ. (SM351LT) and 310nA typ. (SM353LT)
  • Supply voltage range: 1.65Vdc to 5.5Vdc; simplifies design-in
  • Omnipolar sensing: Activates with either pole from a magnet
  • Temperature range: -40°C to 85°C [-40°F to 185°F]
  • Push-pull output: Does not require external pull-up resistor
  • Non-chopper stabilized design
  • RoHS-compliant materials: Meets Directive 2002/95/EC
  • Package: SOT-23
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

Part NumberData SheetDescriptionOperating Supply CurrentOperating Point Min/MaxRelease Point Min/Max (Brp)
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  • Honeywell Sensing & Control