SS351AT – Digital Omnipolar Magnetic Hall-effect Sensor SOT-23-3

Resources:Datasheet
Omnipolar Hall Effect Magnetic Sensor With Digital Switching Output In Compact SOT-23-3 Package
The SS351AT Digital Omnipolar Magnetic Hall-effect Sensor is a compact and highly sensitive magnetic sensing IC designed for reliable contactless switching and position detection applications. Using Hall-effect sensing technology, this omnipolar sensor responds to both north and south magnetic poles, enabling flexible magnetic activation for embedded systems, industrial automation, consumer electronics, and medical equipment. Its compact SOT-23-3 package supports high-density PCB layouts and space-constrained electronic designs.
Designed for low-voltage operation with integrated reverse polarity protection and thermally balanced circuitry, the SS351AT delivers stable magnetic switching performance in demanding environments. The sensor is suitable for speed sensing, flow-rate monitoring, robotic position detection, motion control, and proximity sensing applications. Its contactless sensing operation eliminates mechanical wear and improves reliability in long-term industrial and commercial deployments.
Key Features

Omnipolar Magnetic Detection: Activates using either north or south magnetic poles for flexible sensing applications.
High Sensitivity Hall Sensor: Reliable magnetic detection for accurate switching and position monitoring.
Digital Switching Output: Stable ON OFF magnetic switching for embedded and industrial systems.
Compact SOT-23-3 Package: Small surface-mount package suitable for compact PCB layouts.
Low Voltage Operation: Supports low-voltage 3 Vdc electronic systems.
Integrated Reverse Polarity Protection: Improves device safety against incorrect supply connection.
Thermally Balanced IC Design: Stable operation across varying temperature conditions.
Contactless Magnetic Detection: Eliminates mechanical wear and improves operational lifespan.
Reliable Embedded Integration: Compatible with microcontrollers and digital control systems.
RoHS Compliant: Environmentally compliant materials and construction.

Applications

Speed and RPM sensing
Magnetic encoder systems
HVAC damper and valve position control
Flow-rate sensing
Printer head position detection
Industrial flow meters
Robotic cylinder position monitoring
Float-based fluid level sensing
Motion-control systems
Medical equipment position sensing