Honeywell SS345PT/SS445P Unipolar Hall-effect digital position sensor IC

Manufacturer: Honeywell

The SS345PT/SS445P sensors are small, versatile digital Hall-effect devices that are operated by the magnetic field from a permanent magnet or an electromagnet, designed to respond to a single North pole (SS345PT) or South pole (SS445P).

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Features Applications Model Document

Subminiature package size (SS345PT) uses less space on the PCB than standard Hall-effect sensor packages such as TO-92 or SOT-89, allowing for use in smaller assemblies
Tape and reel packaging (SS345PT) allows for automated component placement, helping to reduce manufacturing costs
Small, flat TO-92-style package (SS445P) is also available
Simple activation from a North pole (SS345PT) or a South pole (SS445P) makes these products suitable in a variety of potential applications such as motion control, lid closure detection, and displacement sensing
Built-in pull-up resistor can easily interface with common electronic circuits without adding external components, helping to reduce total system cost
RoHS-compliant materials meet Directive 2002/95/EC

Commercial:

Door or lid closure detection in appliances
Speed and RPM sensing in fitness equipment
Flow rate sensing in appliances and water softeners
Damper or valve position control in HVAC equipment
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
SS345PT	high sensitivity, SOT-23, 3000 units/pocket tape and reel
SS445P	high sensitivity, flat TO-92, straight standard leads, 1000 units/bag

Honeywell SS345PT/SS445P Unipolar Hall-effect digital position sensor IC

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