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Unipolar Position Sensor ICs

SS345PT, SS445P

Unipolar Hall-effect digital sensor ICs. SOT-23 (SS345PT), flat TO-92-style (SS445P) packages. Digital sinking output

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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).

These unipolar sensors are designed to meet the requirements of a wide range of potential applications. The internal pull-up resistor often eliminates the need for external components, further helping to reduce the system cost. These economical unipolar sensors are well suited for simple, high-volume, cost-sensitive position and motion sensing applications.

The 2.7 Vdc to 7 Vdc supply voltage range allows this device to be used in low voltage applications. The SS345PT’s very small size requires less PCB (printed circuit board) space, allowing it to be used in smaller assemblies.

These sensors are available in two package styles: the SS345PT in the subminiature SOT-23 surface mount package: the SS445P is available in the leaded, flat TO-92-style package.

The SS345PT is available on tape and reel (3000 units per reel): the SS445P is available in a bulk package (1000 units per bag).

Data Sheet
Name
Description
File Size
Date
Size
SS345PT/SS445P Unipolar Hall-Effect Digital Position Sensor ICs With Built-in Pull-up Resistor
454.15 KB
12/3/2020
PDF 454.15 KB
Manuals and Guides
Name
Description
File Size
Date
Size
Position Sensors Range Guide
2.88 MB
2/3/2021
PDF 2.88 MB
Installation Instructions
Name
Description
File Size
Date
Size
SS345PT/SS445P Unipolar Hall-Effect Digital Position Sensors with Built-in Pull-Up Resistor
272.86 KB
12/3/2020
PDF 272.86 KB
CAD Model
Name
Description
File Size
Date
Size
Magnetic Sensors CAD Models - grouped
130.4 KB
4/6/2021
130.4 KB
Technical Note
Name
Description
File Size
Date
Size
Magnetic Sensor IC Selection Chart
178.38 KB
12/3/2020
PDF 178.38 KB
Magnetic Sensor IC Product Line Card
438.61 KB
12/3/2020
PDF 438.61 KB
Application Note
Name
Description
File Size
Date
Size
Sensors and Switches: Solutions for Medical Applications
1.35 MB
1/11/2021
PDF 1.35 MB
Name
Description
File Size
Date
Size
Magnetic Sensor IC Selection Chart
178.38 KB
12/3/2020
PDF 178.38 KB
SS345PT/SS445P Unipolar Hall-Effect Digital Position Sensors with Built-in Pull-Up Resistor
272.86 KB
12/3/2020
PDF 272.86 KB
SS345PT/SS445P Unipolar Hall-Effect Digital Position Sensor ICs With Built-in Pull-up Resistor
454.15 KB
12/3/2020
PDF 454.15 KB
Sensors and Switches: Solutions for Medical Applications
1.35 MB
1/11/2021
PDF 1.35 MB
Position Sensors Range Guide
2.88 MB
2/3/2021
PDF 2.88 MB
Magnetic Sensors CAD Models - grouped
130.4 KB
4/6/2021
130.4 KB
Magnetic Sensor IC Product Line Card
438.61 KB
12/3/2020
PDF 438.61 KB