magnetic sensors
SS340RT, SS440R Series
Low-cost unipolar Hall-effect digital sensor ICs. SOT-23 (SS340RT), flat TO-92-style (SS440R) packages. Digital sinking output.
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Overview
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).
Specifications
Others
- Industry
- Healthcare
Others
- Industry
- Healthcare
- Industry : Healthcare
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Data Sheet
Name
Description
File Size
Date
Size
Lists technical parameters of Honeywell sensors for HVAC systems, including particle, CO2, temperature, humidity, and pressure sensors. Highlights performance metrics such as accuracy, response time, and stability.
application/pdf 3.89 MB
2/13/2026
3.89 MB
SS340RT/SS440R Unipolar Digital Hall-Effect Sensor ICs Datasheet
application/pdf 704.05 KB
8/11/2025
704.05 KB
Manuals and Guides
Name
Description
File Size
Date
Size
SS340RT/SS440R Unipolar Digital Hall-Effect Digital Position Sensor ICs
application/pdf 499.51 KB
8/2/2021
499.51 KB
Position Sensors Product Range Guide
application/pdf 4.85 MB
10/4/2021
4.85 MB
CAD Model
Name
Description
File Size
Date
Size
Magnetic Sensors CAD Models
application/zip 130.4 KB
5/11/2021
130.4 KB
Magnetic Sensor IC Flat TO-92-Style CAD Model
application/zip 13.27 KB
5/11/2021
13.27 KB
Magnetic Sensor IC SOT-23 CAD Model
application/zip 16.4 KB
5/11/2021
16.4 KB
Brochure
Name
Description
File Size
Date
Size
Sensing Solutions For Industrial Applications Brochure
application/pdf 16.68 MB
1/21/2026
16.68 MB
Brochure about Honeywell's Sensor & Switch Solutions for HVAC.
application/pdf 11.68 MB
2/16/2026
11.68 MB
Technical Note
Name
Description
File Size
Date
Size
Magnetic Sensor IC Selection Chart
application/pdf 383.34 KB
3/6/2025
383.34 KB
Magnetic Sensor IC Product Line Card
application/pdf 441.98 KB
8/2/2021
441.98 KB
Application Note
Name
Description
File Size
Date
Size
Construction Vehicles
application/pdf 984.29 KB
8/14/2025
984.29 KB
Agricultural Vehicles
application/pdf 1.11 MB
8/20/2025
1.11 MB
Sensors and Switches - Solutions for Medical Applications Application Note
application/pdf 1.04 MB
1/16/2026
1.04 MB
eBook
Name
Description
File Size
Date
Size
High-Performing Solutions for Rugged Environments and Transportation Land Applications E-book
application/pdf 28.69 MB
8/19/2025
28.69 MB
Product Photo
Name
Description
File Size
Date
Size
Flat TO-92-style straight standard leads highres photo
image/jpeg 89.66 KB
5/11/2021
89.66 KB
Magnetic Sensors Product Photos
application/zip 1.22 MB
5/11/2021
1.22 MB
Flat TO-92-style straight standard leads lowres photo
image/jpeg 16.8 KB
5/11/2021
16.8 KB
Name
Description
File Size
Date
Size
Sensing Solutions For Industrial Applications Brochure
application/pdf 16.68 MB
1/21/2026
16.68 MB
High-Performing Solutions for Rugged Environments and Transportation Land Applications E-book
application/pdf 28.69 MB
8/19/2025
28.69 MB
Construction Vehicles
application/pdf 984.29 KB
8/14/2025
984.29 KB
Brochure about Honeywell's Sensor & Switch Solutions for HVAC.
application/pdf 11.68 MB
2/16/2026
11.68 MB
Agricultural Vehicles
application/pdf 1.11 MB
8/20/2025
1.11 MB
Magnetic Sensors CAD Models
application/zip 130.4 KB
5/11/2021
130.4 KB
Magnetic Sensor IC Flat TO-92-Style CAD Model
application/zip 13.27 KB
5/11/2021
13.27 KB
Lists technical parameters of Honeywell sensors for HVAC systems, including particle, CO2, temperature, humidity, and pressure sensors. Highlights performance metrics such as accuracy, response time, and stability.
application/pdf 3.89 MB
2/13/2026
3.89 MB
Flat TO-92-style straight standard leads highres photo
image/jpeg 89.66 KB
5/11/2021
89.66 KB
SS340RT/SS440R Unipolar Digital Hall-Effect Sensor ICs Datasheet
application/pdf 704.05 KB
8/11/2025
704.05 KB
SS340RT/SS440R Unipolar Digital Hall-Effect Digital Position Sensor ICs
application/pdf 499.51 KB
8/2/2021
499.51 KB
Position Sensors Product Range Guide
application/pdf 4.85 MB
10/4/2021
4.85 MB
Magnetic Sensors Product Photos
application/zip 1.22 MB
5/11/2021
1.22 MB
Sensors and Switches - Solutions for Medical Applications Application Note
application/pdf 1.04 MB
1/16/2026
1.04 MB
Flat TO-92-style straight standard leads lowres photo
image/jpeg 16.8 KB
5/11/2021
16.8 KB
Magnetic Sensor IC SOT-23 CAD Model
application/zip 16.4 KB
5/11/2021
16.4 KB
Magnetic Sensor IC Selection Chart
application/pdf 383.34 KB
3/6/2025
383.34 KB
Magnetic Sensor IC Product Line Card
application/pdf 441.98 KB
8/2/2021
441.98 KB
Name
Description
File Size
Date
Size
Lists technical parameters of Honeywell sensors for HVAC systems, including particle, CO2, temperature, humidity, and pressure sensors. Highlights performance metrics such as accuracy, response time, and stability.
3.89 MB
2/13/2026
SS340RT/SS440R Unipolar Digital Hall-Effect Sensor ICs Datasheet
704.05 KB
8/11/2025
SS340RT/SS440R Unipolar Digital Hall-Effect Digital Position Sensor ICs
499.51 KB
8/2/2021
Magnetic Sensor IC Flat TO-92-Style CAD Model
13.27 KB
5/11/2021
Sensing Solutions For Industrial Applications Brochure
16.68 MB
1/21/2026
Brochure about Honeywell's Sensor & Switch Solutions for HVAC.
11.68 MB
2/16/2026
Sensors and Switches - Solutions for Medical Applications Application Note
1.04 MB
1/16/2026
High-Performing Solutions for Rugged Environments and Transportation Land Applications E-book
28.69 MB
8/19/2025
Flat TO-92-style straight standard leads highres photo
89.66 KB
5/11/2021
Flat TO-92-style straight standard leads lowres photo
16.8 KB
5/11/2021
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