Resources:Datasheet
Continuous Time Unipolar Hall Effect Magnetic Switch Sensor In Compact SOT-23-3 Package
The A1101ELHLT-T Continuous Time Hall Effect Unipolar Switch is a compact magnetic sensing device designed for reliable contactless magnetic field detection and switching applications. Built using Hall effect sensing technology, this unipolar magnetic switch detects the presence of a specific magnetic pole and provides a stable digital switching output for embedded systems, industrial automation, consumer electronics, and motion-control applications. Its continuous-time operation enables fast and accurate magnetic response without duty-cycle delays.
Packaged in a miniature SOT-23-3 surface-mount package, the A1101ELHLT-T is suitable for compact PCB layouts and high-density electronic designs. The sensor supports low-power operation and dependable non-contact sensing, helping improve system reliability while reducing mechanical wear compared to conventional switches. It is commonly used in brushless DC motors, position sensing, speed detection, lid closure detection, and portable electronic devices.
Key Features

Continuous Time Hall Effect Sensing: Fast real-time magnetic field detection without sleep-cycle delays.
Unipolar Magnetic Switching: Detects a specific magnetic polarity for stable switching operation.
Compact SOT-23-3 Package: Small surface-mount package suitable for compact embedded designs.
Digital Switching Output: Reliable ON OFF output for embedded systems and industrial applications.
Low Power Consumption: Suitable for battery-powered and portable electronics.
Contactless Magnetic Detection: Improves durability by eliminating mechanical wear.
Fast Magnetic Response: Supports accurate speed sensing and motion detection applications.
Reliable Embedded Integration: Compatible with microcontrollers and digital logic systems.
Stable Performance: Suitable for industrial and consumer electronic environments.

Applications

Magnetic position sensing
Brushless DC motor systems
Speed and rotation detection
Door and lid sensing
Consumer electronics
Industrial automation
Smart-home devices
Embedded-system development
Portable electronic products
Contactless switching systems