Hall Effect Sensor 44E

The Hall Effect Sensor 44E is a compact and reliable magnetic sensor designed to detect magnetic fields and convert them into digital signals. Based on the Hall Effect principle, this sensor is capable of detecting both the presence and polarity of a magnetic field, making it a perfect choice for applications like rotational speed measurement, motor control, limit switching, and magnetic proximity detection.

This sensor operates by detecting the magnetic flux from a nearby magnet. When the magnetic field exceeds a certain threshold, the sensor output changes state, providing a clean HIGH/LOW digital output signal. This output can be easily interfaced with Arduino, ESP32, Raspberry Pi, or any other microcontroller for real-time sensing and control applications.

The 44E Hall Effect Sensor features a fast response time, high sensitivity, and long operational life. It can operate reliably in harsh environments, including those with dust, vibration, and humidity, making it suitable for industrial automation, robotics, and automotive systems.

⚙️ Key Features:

✅ High-sensitivity Hall Effect magnetic field detection
✅ Digital output compatible with most microcontrollers
✅ Detects magnetic field presence and polarity
✅ Non-contact sensing with high reliability
✅ Low power consumption and long lifespan
✅ Suitable for rotation, proximity, and speed detection
✅ Simple 3-pin interface (VCC, GND, Output)

🔧 Technical Specifications:

• Model: 44E

• Operating Voltage: 3.3V – 5V DC

• Output Type: Digital (HIGH/LOW)

• Output Current: 10mA max

• Operating Current: <8mA

• Response Time: <3ms

• Sensing Distance: 0–10mm (depends on magnet strength)

• Polarity Detection: Unipolar / Bipolar depending on magnet orientation

• Operating Temperature: -25°C to +85°C

• Package Type: TO-92

• Pins: VCC, GND, OUT

⚙️ Working Principle:

The Hall Effect 44E Sensor detects the magnetic flux density around it. When a magnet approaches, the sensor’s internal Hall element generates a voltage proportional to the magnetic field. Once the threshold is reached, it switches the output signal — enabling contactless detection of magnetic movement, position, or rotation.

⚙️ Applications:

• Motor RPM and rotation detection

• Magnetic proximity switches

• Position sensing in automation systems

• Speed and direction detection

• Contactless button or switch design

• Robotics and motion control

• Door or lid open/close detection

⚠️ Precautions:

• Avoid connecting the sensor to more than 5V DC.

• Keep the module away from strong external magnetic interference.

• Ensure correct pin orientation (VCC, GND, OUT).

• Use a pull-up resistor on the output for stable signal detection.

🎥 Tutorial & Resources:

📺 Learn More: Hall Effect 44E Sensor with Arduino Tutorial
Discover how to connect the 44E sensor with Arduino, measure motor speed, and detect magnetic triggers.

🔗 Internal Links:

• Explore more Magnetic & Motion Sensors

• View Arduino & Accessories

• Browse Automation & Control Modules

🧩 Product Summary:

The Hall Effect Sensor 44E offers precise and reliable magnetic field detection in a compact form. With its digital output, wide voltage range, and high sensitivity, it’s ideal for projects involving motor speed measurement, magnetic proximity sensing, or contactless switching. A must-have component for engineers, hobbyists, and automation designers.