• A3144 Magnetic Hall-effect Sensor
A3144 Magnetic Hall-effect Sensor
  • Standard Input Voltage: 5V
  • Input Voltage Range: 4.5V to 28V
  • Input Current: 25mA
  • Turn on and Turn off time: 2µsec each
  • Magnetic Flux Density: Unlimited
  • Operating Temperature: -40°C to 85°C


1x A3144 Magnetic Hall-effect Sensor

Product Description

Pin Configuration


Pin Name



+5V (Vcc)

Used to power the hall sensor, typically +5V is used



Connect to the ground of the circuit



This pin goes high, if magnet detected. Output voltage is equal to Operating voltage.


Hall-effect sensor Specifications

  • Digital Output Hall-effect sensor
  • Operating voltage: 4.5V to 28V (typically 5V)
  • Output Current: 25mA
  • Can be used to detect both the poles of a magnet
  • Output voltage is equal to operating voltage
  • Operating temperature: -40°C to 85°C
  • Turn on and Turn off time is 2uS each
  • Inbuilt reverse polarity protection
  • Suitable for Automotive and Industrial Applications

Where to use hall-effect sensor

hall-effect sensor as the name suggests works with the principle of hall-effect and is used to detect magnets. Each side of the sensor can detect one particular pole. It can also be easily interfaced with a microcontroller since it works on transistor logic.

So if you are looking for a sensor to detect magnet for measuring speed of a moving object or just to detect objects then this sensor might be the perfect choice for your project.

How to use Hall-effect sensor

There are two main types of hall-effect sensor, one which gives an analog output and the other which gives a digital output. A3144 is a digital output hall sensor, meaning if it detects a magnet the output will go low else the output will remain high. It is also mandatory to use a pull-up resistor as shown below to keep the output high when no magnet is detected.

In the above circuit diagram the resistor R1 (10K) is used as a pull-up resistor and the capacitor C1 (0.1uF) is used to filter any noise that might be coupled with the digital output.



  • Used to detect magnets(objects) in automation systems
  • Used in magnetic door alarm system
  • Measure speed in automobiles
  • Detect the pole of magnets in BLDC motors


2D Model of A3144 (Through hole)

FAQs about A3144 Magnetic Hall-effect Sensor:

  1. Q: What is a A3144 Magnetic Hall-effect Sensor, and how does it work? A: The A3144 Magnetic Hall-effect Sensor is a solid-state sensor that detects the presence of magnetic fields. It operates based on the Hall effect principle, where the output voltage of the sensor changes in response to changes in the magnetic field surrounding it.

  2. Q: What are the typical applications of the A3144 Magnetic Hall-effect Sensor? A: The A3144 sensor is commonly used in various applications, including position sensing, speed detection, and proximity sensing. It can be found in automotive systems, industrial equipment, security systems, and consumer electronics.

  3. Q: What is the input voltage range and current consumption of the A3144 sensor? A: The A3144 sensor has a standard input voltage of 5V, with an input voltage range of 4.5V to 28V. It consumes approximately 25mA of current during operation, making it suitable for low-power applications.

  4. Q: What is the operating temperature range of the A3144 sensor? A: The A3144 sensor is designed to operate within a wide temperature range, from -40°C to 85°C. This temperature tolerance makes it suitable for use in harsh environmental conditions and extreme temperatures.

  5. Q: What are the turn-on and turn-off times of the A3144 sensor, and what is the magnetic flux density it can handle? A: The A3144 sensor has fast turn-on and turn-off times of 2µsec each, ensuring rapid response to changes in the magnetic field. It is capable of handling unlimited magnetic flux density, making it suitable for detecting a wide range of magnetic strengths.'

Similar Products:

WYHP GY-271 HMC5883L 3-Axis Compass Magnetometer Sensor Module 3V-5V

KY-024 Linear Magnetic Hall Effect Switch Speed Counting Sensor Module For Arduino

BMP18+ GY-652 HMC59830 Axis flight control sensor module electronic compass atmospheric pressure Module Magnetic field sensors

AS5600 Magnetic Encoder Induction Angle Sensor

Buy A3144 Magnetic Hall-effect Sensor From ElectronicsBD Bangladesh (BD)

In Bangladesh, you can get the best Quality and original A3144 Magnetic Hall-effect Sensor from ElectronicsBD. We have a large collection of the latest A3144 Magnetic Hall-effect Sensor to purchase. Order online or visit our shop ElectronicsBD to get yours at the lowest price.

What is the latest and best price of A3144 Magnetic Hall-effect Sensor in Bangladesh (BD) ?

The latest and special price of A3144 Magnetic Hall-effect Sensor in Bangladesh is BDT ৳22.00 Taka. Buy best quality A3144 Magnetic Hall-effect Sensor from ElectronicsBD at a special price in Bangladesh (BD). You can buy A3144 Magnetic Hall-effect Sensor at best price from ElectronicsBD or visit ElectronicsBD Store. বাংলাদেশে আকর্ষণীয় মূল্যে কিনুন A3144 Magnetic Hall-effect Sensor শুধুমাত্র ইলেকট্রনিক্স বিডি ElectronicsBD থেকে। ElectronicsBD বাংলাদেশের সকল প্রধান স্থান যেমন বরিশাল, চট্টগ্রাম, ঢাকা, খুলনা, রাজশাহী, রংপুর, ময়মনসিংহ এবং সিলেটে পণ্য ডেলিভারি করে ।

Fahim 11/05/2023

Everthing is good here..And stuffs are behaving well.

Hasan Sharif20/09/2022

বাংলাদেশের মধ্যে অনেক ভালো একটা শপ আপনাদের।

Syed Rajib 23/05/2022

ডেলিভারি বক্স খুব মজবুদ থাকায় পণ্য ডেমেজ হয় নি।

Md.Jahangir Alam 12/02/2022

Very good behaviour, very good products.

Nafis 21/09/2021

Quick service, quality products but price a bit high.

Write a review

Note: HTML is not translated!
Bad           Good
Digital Multimeter TRMS with Oscilloscope Portable LCD Colour 9999 Counts 10 MHz Mini Rechargeable Oscilloscope
TOOLTOP ET928 3 In 1 Oscilloscope Multimeter Signal Generator 12MHz 50Msps Portable High Storage Capacity Low Power Consumption
UNI-T UTD2025CL Digital Storage Oscilloscopes 2 Channels 250MSa/s Sample Rate 7''TFT LCD Scopemeter 100-240VAC
UNI-T UTD2052CEX Digital Storage Oscilloscopes 2CH 50MHZ 1Gsa Scope meter 7 inches widescreen LCD displays
UNI-T UTD2102CEX Digital Oscilloscope 100MHz Bandwidth With USB OTG Interface 2 Channels Storage Portable Oscilloscope
A3144 Magnetic Hall-effect Sensor

A3144 Magnetic Hall-effect Sensor