Hall Effect Sensor A3144 TO-92 Hall Element Sensor Motor 3 Pins for Arduino
KSH 60.00
Out of Stock
The A3144 Hall Effect Sensor is a highreliability, TO92 packaged magnetic switch designed for precise magnetic field detection. This robust sensor features an open-collector output that pulls low when a magnetic field (south pole) is detected, making it an ideal component for position sensing, speed measurement, and proximity detection applications.
| Parameter | Value |
|---|---|
| Package | TO92 (3pin) |
| Supply Voltage | 4.5V - 28V DC |
| Output Type | Open-collector |
| Output Current | Up to 25mA |
| Operating Temp | -40°C to +150°C |
| Output Switch | Digital (ON/OFF) |
| Polarity Detection | South Pole |
| Response Time | Instant |
| Mounting | Through-hole |
= Key Features =
Digital Output - Simple high/low switch for easy microcontroller reading
OpenCollector Requires pull-up resistor for proper operation
Wide Voltage Range - Works from 4.5V to 28V DC systems
TO92 Package Standard transistor-like package for breadboard and PCB
South Pole Sensing - Specifically detects south magnetic polarity
High Temperature Range - Operates up to 150°C for industrial applications
Robust Design Industrialgrade durability
| Pin | Function | Description |
|---|---|---|
| 1 | VCC (Power) | Connect to 4.5-28V DC |
| 2 | GND | Ground connection |
| 3 | OUT (Signal) | Open-collector output |
> Device marking: 3144 on flat face
| A3144 Pin | Arduino Pin | Description |
|---|---|---|
| VCC (Pin 1) | 5V | Connect to 5V (or 3.3V) |
| GND (Pin 2) | GND | Common ground |
| OUT (Pin 3) | Digital Pin | With 10K pull-up resistor |
> Always use a pullup resistor (4.7K10KΩ) between VCC and OUT
| Condition | Output State | Explanation |
|---|---|---|
| Magnet Not Present | HIGH (via pull-up) | Sensor idle state |
| South Pole Present | LOW (0V) | Sensor triggered |
| North Pole Present | HIGH | No activation |
> Output is opencollector only pulls to ground
√ Compatible with 3.3V and 5V systems
√ Works with Arduino, ESP32, and PIC
√ Simple interface requires only 3 wires
√ Robust and reliable design
√ Proven and widely used
√ Perfect for educational and professional projects
The A3144 Hall Effect Sensor delivers simple, reliable magnetic detection for your Arduino and automation projects. With its wide voltage range, high temperature operation, and open-collector output, it's the ideal choice for position sensing, speed detection, and proximity applications.
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