Honeywell SS351AT, SS451A, SS551AT Omnipolar Digital Hall-effect Sensor

Manufacturer: Honeywell

The SS351AT, SS451A and SS551AT sensors are small, versatile digital Hall-effect devices that are operated by the magnetic field from a permanent magnet or an electromagnet. They are designed to respond to a either a North pole or a South pole.

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Features Applications Model Document

Subminiature package size (SS351AT) supplied on tape and reel allows for a compact design with automated component placement, helping to reduce manufacturing costs
Simple activation from a North pole or a South pole and sensitive magnetics make this omnipolar product suitable in a variety of potential motion control, lid closure detection, and displacement sensing applications
Low voltage 3 Vdc capability helps reduce power consumption
Built-in reverse polarity protection protects the device from potential damage during installation
Thermally balanced integrated circuit provides for stable operation over a wide temperature range of -40° to 150 °C [-40 °F to 302 °F]
RoHS-compliant materials meet Directive 2002/95/EC

Commercial:

Speed and RPM (revolutions per minute) sensing in fitness equipment
Magnetic encoder for building access
Damper or valve position control in HVAC (heating, ventilation and air conditioning) equipment
Flow rate sensing in appliances and water softeners
Printer head position sensing

Industrial:

Flow rate sensing in industrial processes
Robotic control (cylinder position monitoring)
Float-based fluid level sensing

Medical:

Displacement sensor in hospital beds and medical equipment
Medication bin monitor on portable drug carts

Mfr. Part No.	Description
SS351AT	low sensitivity, SOT-23, 3000 units/pocket tape and reel
SS451A	flat TO-92-style package, straight standard leads, 1000 units/bag
SS551AT	SOT-89B package, tape and reel packaging (1000 units per reel)

Honeywell SS351AT, SS451A, SS551AT Omnipolar Digital Hall-effect Sensor

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