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Omnipolar Position Sensor ICs

SS351AT, SS451A, SS551AT

Omnipolar Hall-effect. SOT-23, flat TO-92-style, SOT-89B packages. 85 G typ. operate.

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.

These omnipolar sensors are sensitive and flexible devices designed to meet a wide range of potential applications. The SS351AT, SS451A and SS551AT have a typical operating point of 85 G at 25 °C [77 °F]. Because they can be operated by a North pole or a South pole, they do not require the magnet polarity to be identified, thus making the installation easier and potentially reducing the system cost.

These sensors are available in three package styles. The SS351AT is available in the subminiature SOT-23 surface mount package: the SS451A is available in the leaded, flat TO-92-style package, and the SS551AT is supplied in the SOT-89B surface-mount package. The SS351AT’s small size requires less PC board space, allowing it to be used in smaller assemblies. Its 3 Vdc capability allows for use in low voltage applications, promoting energy efficiency.

The SS351AT is available on tape and reel (3000 units per reel): the SS451A is available in a bulk package (1000 units per bag), and the SS551AT is available on tape and reel (1000 units per reel).

Data Sheet
Name
Description
File Size
Date
Size
SS351AT, SS451A, SS551AT Omnipolar Digital Hall-effect Sensor IC
application/pdf 500.75 KB
7/15/2021
500.75 KB
Manuals and Guides
Name
Description
File Size
Date
Size
Position Sensors Product Range Guide
application/pdf 4.85 MB
9/30/2021
4.85 MB
Installation Instructions
Name
Description
File Size
Date
Size
SS351AT/SS451A/SS551AT Omnipolar Hall-Effect Digital Position Sensors
application/pdf 428.32 KB
7/15/2021
428.32 KB
CAD Model
Name
Description
File Size
Date
Size
Magnetic Sensor IC SOT-23 CAD Model
application/zip 16.4 KB
7/15/2021
16.4 KB
Magnetic Sensor IC Flat TO-92-Style CAD Model
application/zip 13.27 KB
7/15/2021
13.27 KB
Magnetic Sensor IC SOT-89B CAD Model
application/zip 32.96 KB
7/15/2021
32.96 KB
Magnetic Sensors CAD Models - grouped
application/zip 130.4 KB
7/15/2021
130.4 KB
Brochure
Name
Description
File Size
Date
Size
Making Sense of Sensing
application/pdf 3.37 MB
10/6/2021
3.37 MB
Controlling the Future with Technology
application/pdf 11.81 MB
8/17/2022
11.81 MB
Technical Note
Name
Description
File Size
Date
Size
Magnetic Sensor IC Product Line Card
application/pdf 480.99 KB
8/11/2021
480.99 KB
Magnetic Sensor IC Selection Chart
application/pdf 181.38 KB
7/15/2021
181.38 KB
Application Note
Name
Description
File Size
Date
Size
Solutions For Healthier Air & HVAC Systems
application/pdf 3.88 MB
5/31/2022
3.88 MB
Defence Ground Vehicles
application/pdf 872.87 KB
3/10/2022
872.87 KB
Trains & Rail Systems
application/pdf 971.16 KB
1/28/2022
971.16 KB
Sensors and Switches in Chemistry and Immunoassay Analyzers
application/pdf 1.24 MB
7/15/2021
1.24 MB
Sensors and Switches: Solutions for Medical Applications
application/pdf 1.34 MB
11/23/2021
1.34 MB
Agricultural Vehicles
application/pdf 1.11 MB
3/23/2022
1.11 MB
Construction Vehicles
application/pdf 984.29 KB
1/27/2022
984.29 KB
Platform Vehicles
application/pdf 628.05 KB
6/23/2022
628.05 KB
Forestry Vehicles
application/pdf 1.05 MB
6/23/2022
1.05 MB
All-Terrain Vehicle Solutions
application/pdf 803.57 KB
6/23/2022
803.57 KB
eBook
Name
Description
File Size
Date
Size
Redefining Road Rail & Rugged Applications
application/pdf 28.35 MB
6/23/2022
28.35 MB
Product Photo
Name
Description
File Size
Date
Size
SOT-89B highres photo
image/jpeg 25.73 KB
7/15/2021
25.73 KB
SOT-23 highres photo
image/jpeg 115.42 KB
7/15/2021
115.42 KB
SOT-89B lowres photo
image/jpeg 10.2 KB
7/15/2021
10.2 KB
Flat TO-92-style straight standard leads lowres photo
image/jpeg 16.8 KB
7/15/2021
16.8 KB
Flat TO-92-style straight standard leads highres photo
image/jpeg 89.66 KB
7/15/2021
89.66 KB
SOT-23 lowres photo
image/jpeg 12.05 KB
7/15/2021
12.05 KB
Magnetic Sensors Product Photos - grouped
application/zip 1.22 MB
7/15/2021
1.22 MB
Name
Description
File Size
Date
Size
Solutions For Healthier Air & HVAC Systems
3.88 MB
5/31/2022
3.88 MB
SS351AT/SS451A/SS551AT Omnipolar Hall-Effect Digital Position Sensors
428.32 KB
7/15/2021
428.32 KB
Magnetic Sensor IC Product Line Card
480.99 KB
8/11/2021
480.99 KB
SOT-89B highres photo
25.73 KB
7/15/2021
25.73 KB
SOT-23 highres photo
115.42 KB
7/15/2021
115.42 KB
Defence Ground Vehicles
872.87 KB
3/10/2022
872.87 KB
Position Sensors Product Range Guide
4.85 MB
9/30/2021
4.85 MB
SOT-89B lowres photo
10.2 KB
7/15/2021
10.2 KB
Trains & Rail Systems
971.16 KB
1/28/2022
971.16 KB
SS351AT, SS451A, SS551AT Omnipolar Digital Hall-effect Sensor IC
500.75 KB
7/15/2021
500.75 KB
Sensors and Switches in Chemistry and Immunoassay Analyzers
1.24 MB
7/15/2021
1.24 MB
Magnetic Sensor IC SOT-23 CAD Model
16.4 KB
7/15/2021
16.4 KB
Sensors and Switches: Solutions for Medical Applications
1.34 MB
11/23/2021
1.34 MB
Magnetic Sensor IC Flat TO-92-Style CAD Model
13.27 KB
7/15/2021
13.27 KB
Making Sense of Sensing
3.37 MB
10/6/2021
3.37 MB
Flat TO-92-style straight standard leads lowres photo
16.8 KB
7/15/2021
16.8 KB
Flat TO-92-style straight standard leads highres photo
89.66 KB
7/15/2021
89.66 KB
Magnetic Sensor IC SOT-89B CAD Model
32.96 KB
7/15/2021
32.96 KB
SOT-23 lowres photo
12.05 KB
7/15/2021
12.05 KB
Agricultural Vehicles
1.11 MB
3/23/2022
1.11 MB
Magnetic Sensors CAD Models - grouped
130.4 KB
7/15/2021
130.4 KB
Magnetic Sensor IC Selection Chart
181.38 KB
7/15/2021
181.38 KB
Construction Vehicles
984.29 KB
1/27/2022
984.29 KB
Magnetic Sensors Product Photos - grouped
1.22 MB
7/15/2021
1.22 MB
Redefining Road Rail & Rugged Applications
28.35 MB
6/23/2022
28.35 MB
Platform Vehicles
628.05 KB
6/23/2022
628.05 KB
Forestry Vehicles
1.05 MB
6/23/2022
1.05 MB
All-Terrain Vehicle Solutions
803.57 KB
6/23/2022
803.57 KB
Controlling the Future with Technology
11.81 MB
8/17/2022
11.81 MB
Name
Description
File Size
Date
Size
SS351AT, SS451A, SS551AT Omnipolar Digital Hall-effect Sensor IC
500.75 KB
7/15/2021
Position Sensors Product Range Guide
4.85 MB
9/30/2021
SS351AT/SS451A/SS551AT Omnipolar Hall-Effect Digital Position Sensors
428.32 KB
7/15/2021
Magnetic Sensor IC SOT-23 CAD Model
16.4 KB
7/15/2021
Magnetic Sensor IC Flat TO-92-Style CAD Model
13.27 KB
7/15/2021
Magnetic Sensor IC SOT-89B CAD Model
32.96 KB
7/15/2021
Magnetic Sensors CAD Models - grouped
130.4 KB
7/15/2021
Making Sense of Sensing
3.37 MB
10/6/2021
Controlling the Future with Technology
11.81 MB
8/17/2022
Magnetic Sensor IC Product Line Card
480.99 KB
8/11/2021
Magnetic Sensor IC Selection Chart
181.38 KB
7/15/2021
Solutions For Healthier Air & HVAC Systems
3.88 MB
5/31/2022
Defence Ground Vehicles
872.87 KB
3/10/2022
Trains & Rail Systems
971.16 KB
1/28/2022
Sensors and Switches in Chemistry and Immunoassay Analyzers
1.24 MB
7/15/2021
Sensors and Switches: Solutions for Medical Applications
1.34 MB
11/23/2021
Agricultural Vehicles
1.11 MB
3/23/2022
Construction Vehicles
984.29 KB
1/27/2022
Platform Vehicles
628.05 KB
6/23/2022
Forestry Vehicles
1.05 MB
6/23/2022
All-Terrain Vehicle Solutions
803.57 KB
6/23/2022
Redefining Road Rail & Rugged Applications
28.35 MB
6/23/2022
SOT-89B highres photo
25.73 KB
7/15/2021
SOT-23 highres photo
115.42 KB
7/15/2021
SOT-89B lowres photo
10.2 KB
7/15/2021
Flat TO-92-style straight standard leads lowres photo
16.8 KB
7/15/2021
Flat TO-92-style straight standard leads highres photo
89.66 KB
7/15/2021
SOT-23 lowres photo
12.05 KB
7/15/2021
Magnetic Sensors Product Photos - grouped
1.22 MB
7/15/2021
Image
SKU
Description
alt
SS351AT
SS351AT Hall-effect digital position sensor, omnipolar, low sensitivity, SOT-23, pocket tape and reel, 3000 units/reel
alt
SS451A
SS451A Hall-effect digital position sensor IC, omnipolar, flat TO-92-style package, straight standard leads, 1000 units/bag
alt
SS551AT
SS551AT Hall-effect digital position sensor IC, omnipolar, low sensitivity, SOT-89B, 1000 units/pocket tape and reel
Image
SKU
Description
alt
SS351AT
SS351AT Hall-effect digital position sensor, omnipolar, low sensitivity, SOT-23, pocket tape and reel, 3000 units/reel
alt
SS451A
SS451A Hall-effect digital position sensor IC, omnipolar, flat TO-92-style package, straight standard leads, 1000 units/bag
alt
SS551AT
SS551AT Hall-effect digital position sensor IC, omnipolar, low sensitivity, SOT-89B, 1000 units/pocket tape and reel