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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.

Overview

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
12/20/2022
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 Sensors CAD Models - grouped
application/zip 130.4 KB
7/15/2021
130.4 KB
Magnetic Sensor IC SOT-89B CAD Model
application/zip 32.96 KB
7/15/2021
32.96 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-23 CAD Model
application/zip 16.4 KB
7/15/2021
16.4 KB
Brochure
Name
Description
File Size
Date
Size
Industrial Applications: Going Beyond Limits
application/pdf 16.69 MB
11/17/2022
16.69 MB
Controlling the Future with Technology
application/pdf 11.8 MB
3/7/2023
11.8 MB
Making Sense of Sensing
application/pdf 3.37 MB
10/6/2021
3.37 MB
Technical Note
Name
Description
File Size
Date
Size
Magnetic Sensor IC Selection Chart --
application/pdf 372.87 KB
10/25/2022
372.87 KB
Magnetic Sensor IC Product Line Card
application/pdf 480.99 KB
8/11/2021
480.99 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
All-Terrain Vehicle Solutions
application/pdf 803.57 KB
12/20/2022
803.57 KB
Forestry Vehicles
application/pdf 1.05 MB
12/20/2022
1.05 MB
Platform Vehicles
application/pdf 628.05 KB
12/20/2022
628.05 KB
Construction Vehicles -
application/pdf 984.29 KB
12/20/2022
984.29 KB
Agricultural Vehicles -
application/pdf 1.11 MB
12/20/2022
1.11 MB
Sensors and Switches: Solutions for Medical Applications
application/pdf 1.34 MB
5/18/2023
1.34 MB
Sensors and Switches in Chemistry and Immunoassay Analyzers
application/pdf 1.24 MB
5/18/2023
1.24 MB
Defence Ground Vehicles -
application/pdf 872.87 KB
6/14/2023
872.87 KB
eBook
Name
Description
File Size
Date
Size
Redefining Road Rail & Rugged Applications
application/pdf 28.35 MB
12/20/2022
28.35 MB
Product Photo
Name
Description
File Size
Date
Size
Magnetic Sensors Product Photos - grouped
application/zip 1.22 MB
7/15/2021
1.22 MB
SOT-23 lowres photo
image/jpeg 12.05 KB
7/15/2021
12.05 KB
Flat TO-92-style straight standard leads highres photo
image/jpeg 89.66 KB
7/15/2021
89.66 KB
Flat TO-92-style straight standard leads lowres photo
image/jpeg 16.8 KB
7/15/2021
16.8 KB
SOT-89B lowres photo
image/jpeg 10.2 KB
7/15/2021
10.2 KB
SOT-23 highres photo
image/jpeg 115.42 KB
7/15/2021
115.42 KB
SOT-89B highres photo
image/jpeg 25.73 KB
7/15/2021
25.73 KB
Name
Description
File Size
Date
Size
Solutions For Healthier Air & HVAC Systems
3.88 MB
5/31/2022
3.88 MB
Industrial Applications: Going Beyond Limits
16.69 MB
11/17/2022
16.69 MB
Controlling the Future with Technology
11.8 MB
3/7/2023
11.8 MB
All-Terrain Vehicle Solutions
803.57 KB
12/20/2022
803.57 KB
Forestry Vehicles
1.05 MB
12/20/2022
1.05 MB
Platform Vehicles
628.05 KB
12/20/2022
628.05 KB
Redefining Road Rail & Rugged Applications
28.35 MB
12/20/2022
28.35 MB
Magnetic Sensors Product Photos - grouped
1.22 MB
7/15/2021
1.22 MB
Construction Vehicles -
984.29 KB
12/20/2022
984.29 KB
Magnetic Sensor IC Selection Chart --
372.87 KB
10/25/2022
372.87 KB
Magnetic Sensors CAD Models - grouped
130.4 KB
7/15/2021
130.4 KB
Agricultural Vehicles -
1.11 MB
12/20/2022
1.11 MB
SOT-23 lowres photo
12.05 KB
7/15/2021
12.05 KB
Magnetic Sensor IC SOT-89B CAD Model
32.96 KB
7/15/2021
32.96 KB
Flat TO-92-style straight standard leads highres photo
89.66 KB
7/15/2021
89.66 KB
Flat TO-92-style straight standard leads lowres photo
16.8 KB
7/15/2021
16.8 KB
Making Sense of Sensing
3.37 MB
10/6/2021
3.37 MB
Magnetic Sensor IC Flat TO-92-Style CAD Model
13.27 KB
7/15/2021
13.27 KB
Sensors and Switches: Solutions for Medical Applications
1.34 MB
5/18/2023
1.34 MB
Magnetic Sensor IC SOT-23 CAD Model
16.4 KB
7/15/2021
16.4 KB
Sensors and Switches in Chemistry and Immunoassay Analyzers
1.24 MB
5/18/2023
1.24 MB
SS351AT, SS451A, SS551AT Omnipolar Digital Hall-effect Sensor IC
500.75 KB
7/15/2021
500.75 KB
SOT-89B lowres photo
10.2 KB
7/15/2021
10.2 KB
Position Sensors Product Range Guide
4.85 MB
12/20/2022
4.85 MB
Defence Ground Vehicles -
872.87 KB
6/14/2023
872.87 KB
SOT-23 highres photo
115.42 KB
7/15/2021
115.42 KB
SOT-89B highres photo
25.73 KB
7/15/2021
25.73 KB
Magnetic Sensor IC Product Line Card
480.99 KB
8/11/2021
480.99 KB
SS351AT/SS451A/SS551AT Omnipolar Hall-Effect Digital Position Sensors
428.32 KB
7/15/2021
428.32 KB
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
12/20/2022
SS351AT/SS451A/SS551AT Omnipolar Hall-Effect Digital Position Sensors
428.32 KB
7/15/2021
Magnetic Sensors CAD Models - grouped
130.4 KB
7/15/2021
Magnetic Sensor IC SOT-89B CAD Model
32.96 KB
7/15/2021
Magnetic Sensor IC Flat TO-92-Style CAD Model
13.27 KB
7/15/2021
Magnetic Sensor IC SOT-23 CAD Model
16.4 KB
7/15/2021
Industrial Applications: Going Beyond Limits
16.69 MB
11/17/2022
Controlling the Future with Technology
11.8 MB
3/7/2023
Making Sense of Sensing
3.37 MB
10/6/2021
Magnetic Sensor IC Selection Chart --
372.87 KB
10/25/2022
Magnetic Sensor IC Product Line Card
480.99 KB
8/11/2021
Solutions For Healthier Air & HVAC Systems
3.88 MB
5/31/2022
All-Terrain Vehicle Solutions
803.57 KB
12/20/2022
Forestry Vehicles
1.05 MB
12/20/2022
Platform Vehicles
628.05 KB
12/20/2022
Construction Vehicles -
984.29 KB
12/20/2022
Agricultural Vehicles -
1.11 MB
12/20/2022
Sensors and Switches: Solutions for Medical Applications
1.34 MB
5/18/2023
Sensors and Switches in Chemistry and Immunoassay Analyzers
1.24 MB
5/18/2023
Defence Ground Vehicles -
872.87 KB
6/14/2023
Redefining Road Rail & Rugged Applications
28.35 MB
12/20/2022
Magnetic Sensors Product Photos - grouped
1.22 MB
7/15/2021
SOT-23 lowres photo
12.05 KB
7/15/2021
Flat TO-92-style straight standard leads highres photo
89.66 KB
7/15/2021
Flat TO-92-style straight standard leads lowres photo
16.8 KB
7/15/2021
SOT-89B lowres photo
10.2 KB
7/15/2021
SOT-23 highres photo
115.42 KB
7/15/2021
SOT-89B highres photo
25.73 KB
7/15/2021
Product Number
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