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Unipolar Position Sensor ICs

SS340RT, SS440R Series

Low-cost unipolar Hall-effect digital sensor ICs. SOT-23 (SS340RT), flat TO-92-style (SS440R) packages. Digital sinking output.

The SS340RT/SS440R Series sensor ICs 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 single pole: North (SS340RT) or South (SS440R).

These unipolar Hall ICs are supplied in three different magnetic sensitivities to meet a wide range of potential applications:

  • SS341RT and SS441R offer the highest sensitivity, with a typical operating point of 75 G at 25 °C [77 °F].
  • SS343RT and SS443R offer medium sensitivity, with a typical operating point of 135 G at 25 °C [77 °F].
  • SS349RT and SS449R offer the lowest sensitivity, with a typical operating point of 305 G at 25 °C [77 °F].
These sensors are available in two package styles:
  • SS340RT: Miniature SOT-23 surface mount package.
  • SS440R: Leaded, flat TO-92-style package.

The SS340RT’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 SS340RT Series is available on tape and reel (3000 units per reel): the SS440R Series is available in a bulk package (1000 units per bag).

Data Sheet
Name
Description
File Size
Date
Size
SS340RT/SS440R Unipolar Digital Hall-Effect Sensor ICs Datasheet
application/pdf 704.05 KB
7/15/2021
704.05 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
SS340RT/SS440R Unipolar Digital Hall-Effect Digital Position Sensor ICs
application/pdf 495.93 KB
7/15/2021
495.93 KB
CAD Model
Name
Description
File Size
Date
Size
Magnetic Sensor IC Flat TO-92-Style CAD Model
application/zip 13.27 KB
7/15/2021
13.27 KB
Magnetic Sensors CAD Models - grouped
application/zip 130.4 KB
7/15/2021
130.4 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
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 Selection Chart
application/pdf 181.38 KB
7/15/2021
181.38 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
Agricultural Vehicles
application/pdf 1.11 MB
3/23/2022
1.11 MB
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
Sensors and Switches: Solutions for Medical Applications
application/pdf 1.34 MB
11/23/2021
1.34 MB
Construction Vehicles
application/pdf 984.29 KB
1/27/2022
984.29 KB
Trains & Rail Systems
application/pdf 971.16 KB
1/28/2022
971.16 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
Flat TO-92-style straight standard leads highres photo
image/jpeg 89.66 KB
7/15/2021
89.66 KB
SOT-23 highres photo
image/jpeg 115.42 KB
7/15/2021
115.42 KB
Flat TO-92-style straight standard leads lowres photo
image/jpeg 16.8 KB
7/15/2021
16.8 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
SS340RT/SS440R Unipolar Digital Hall-Effect Digital Position Sensor ICs
495.93 KB
7/15/2021
495.93 KB
Magnetic Sensor IC Flat TO-92-Style CAD Model
13.27 KB
7/15/2021
13.27 KB
Magnetic Sensor IC Selection Chart
181.38 KB
7/15/2021
181.38 KB
Flat TO-92-style straight standard leads highres photo
89.66 KB
7/15/2021
89.66 KB
Magnetic Sensors CAD Models - grouped
130.4 KB
7/15/2021
130.4 KB
SOT-23 highres photo
115.42 KB
7/15/2021
115.42 KB
Flat TO-92-style straight standard leads lowres photo
16.8 KB
7/15/2021
16.8 KB
Agricultural Vehicles
1.11 MB
3/23/2022
1.11 MB
Magnetic Sensor IC Product Line Card
480.99 KB
8/11/2021
480.99 KB
Solutions For Healthier Air & HVAC Systems
3.88 MB
5/31/2022
3.88 MB
Position Sensors Product Range Guide
4.85 MB
9/30/2021
4.85 MB
Defence Ground Vehicles
872.87 KB
3/10/2022
872.87 KB
Making Sense of Sensing
3.37 MB
10/6/2021
3.37 MB
SS340RT/SS440R Unipolar Digital Hall-Effect Sensor ICs Datasheet
704.05 KB
7/15/2021
704.05 KB
SOT-23 lowres photo
12.05 KB
7/15/2021
12.05 KB
Sensors and Switches: Solutions for Medical Applications
1.34 MB
11/23/2021
1.34 MB
Construction Vehicles
984.29 KB
1/27/2022
984.29 KB
Trains & Rail Systems
971.16 KB
1/28/2022
971.16 KB
Magnetic Sensors Product Photos - grouped
1.22 MB
7/15/2021
1.22 MB
Magnetic Sensor IC SOT-23 CAD Model
16.4 KB
7/15/2021
16.4 KB
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
SS340RT/SS440R Unipolar Digital Hall-Effect Sensor ICs Datasheet
704.05 KB
7/15/2021
Position Sensors Product Range Guide
4.85 MB
9/30/2021
SS340RT/SS440R Unipolar Digital Hall-Effect Digital Position Sensor ICs
495.93 KB
7/15/2021
Magnetic Sensor IC Flat TO-92-Style CAD Model
13.27 KB
7/15/2021
Magnetic Sensors CAD Models - grouped
130.4 KB
7/15/2021
Magnetic Sensor IC SOT-23 CAD Model
16.4 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 Selection Chart
181.38 KB
7/15/2021
Magnetic Sensor IC Product Line Card
480.99 KB
8/11/2021
Agricultural Vehicles
1.11 MB
3/23/2022
Solutions For Healthier Air & HVAC Systems
3.88 MB
5/31/2022
Defence Ground Vehicles
872.87 KB
3/10/2022
Sensors and Switches: Solutions for Medical Applications
1.34 MB
11/23/2021
Construction Vehicles
984.29 KB
1/27/2022
Trains & Rail Systems
971.16 KB
1/28/2022
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
Flat TO-92-style straight standard leads highres photo
89.66 KB
7/15/2021
SOT-23 highres photo
115.42 KB
7/15/2021
Flat TO-92-style straight standard leads lowres photo
16.8 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
SS341RT
SS340RT, SS440R Series Hall-effect digital sensor IC, unipolar, high sensitivity, SOT-23, pocket tape and reel, 3000 units/reel
alt
SS343RT
SS340RT, SS440R Series Hall-effect digital sensor IC, unipolar, medium sensitivity, SOT-23, pocket tape and reel, 3000 units/reel
alt
SS349RT
SS340RT, SS440R Series Hall-effect digital sensor IC, unipolar, low sensitivity, SOT-23, pocket tape and reel, 3000 units/reel
alt
SS441R
SOLID STATE SENSOR
alt
SS443R
SOLID STATE SENSOR
alt
SS449R
SS340RT, SS440R Series Hall-effect digital sensor IC, unipolar, low sensitivity, flat TO-92-style package, straight standard leads, 1000 units/bag
Image
SKU
Description
alt
SS341RT
SS340RT, SS440R Series Hall-effect digital sensor IC, unipolar, high sensitivity, SOT-23, pocket tape and reel, 3000 units/reel
alt
SS343RT
SS340RT, SS440R Series Hall-effect digital sensor IC, unipolar, medium sensitivity, SOT-23, pocket tape and reel, 3000 units/reel
alt
SS349RT
SS340RT, SS440R Series Hall-effect digital sensor IC, unipolar, low sensitivity, SOT-23, pocket tape and reel, 3000 units/reel
alt
SS441R
SOLID STATE SENSOR
alt
SS443R
SOLID STATE SENSOR
alt
SS449R
SS340RT, SS440R Series Hall-effect digital sensor IC, unipolar, low sensitivity, flat TO-92-style package, straight standard leads, 1000 units/bag