A3144 Hall Effect Sensor

A3144 Hall Effect Sensor is a versatile unipolar magnetic switch designed for detecting magnetic fields with high sensitivity and stability. It operates based on the Hall Effect principle, providing a digital output when exposed to a magnetic field of sufficient strength.

Encased in a robust, solid-state plastic package without fragile glass encapsulation, the A3144 is well-suited for use in demanding environments such as automotive systems, industrial automation, consumer electronics, and DIY electronics projects.

Its open-collector output allows easy interfacing with microcontrollers and digital logic circuits. The A3144 activates (pulls output low) in the presence of a south pole magnetic field and deactivates (output high) when the field is removed, making it ideal for use as a proximity switch, tachometer sensor, or speed detector.

A3144 Hall Effect Sensor Specifications :

• Operating Voltage: 3.5V – 24V DC
• Current Consumption: Low power usage
• Output Type: Open-collector
• Maximum Sinking Output Current: 50mA
• Response Time: Fast switching
• Temperature Compensation: Built-in for stability
• Reverse Polarity Protection: Yes
• Package Type: TO-92

Features of A3144 Hall Effect Sensor

• 5V – 24V DC operation
• Low power consumption
• Temperature compensated
• Wide voltage range
• Open-collector pre-driver
• 50mA max sinking output
• Reverse polarity protection
• Lead-free TO-92 package

Applications of A3144 Hall Effect Sensor

• Proximity sensing– Detects nearby magnetic fields
• Speed measurement– Used in motor and fan speed monitoring
• Position detection– Determines the position of rotating objects
• Current sensing– Measures electrical current in circuits
• Security systems– Magnetic door and window sensors