A3144 Hall Effect Sensor Latch (3.5V to 24V)
Prices updated: 13 Oct 2026
Compare prices
| Store | product | Price | View in store |
|---|---|---|---|
 Circuits ElectronicsCheapest | Hall Effect Sensor (3144) | 40 EGP | View in store |
 Future Electronics | Hall Effect Sensor A3144 | 45 EGP | View in store |
Price history
Lowest daily price, last 90 days
Lowest price recorded: 40 EGP
About this product
The A3144 is a Hall effect latch sensor that switches on when a magnet's south pole approaches and switches off with the north pole. It is widely used to count the speed (RPM) of a rotating shaft or fan using magnets, and for position and proximity detection. It has an open-collector output rated for up to 50 mA sink current.
Specifications
- Sensor type
- Unipolar Hall effect latch
- Operating voltage
- 3.5 V to 24 V DC
- Output
- Open-collector
- Maximum sinking output current
- 50 mA
- Reverse polarity protection
- Yes
- Package
- TO-92
Frequently asked questions
What is the price of A3144 Hall Effect Sensor Latch (3.5V to 24V) in Egypt?
A3144 Hall Effect Sensor Latch (3.5V to 24V) currently costs between 40 and 45 EGP across 2 offers in Egypt.
Where can I buy A3144 Hall Effect Sensor Latch (3.5V to 24V) in Egypt?
A3144 Hall Effect Sensor Latch (3.5V to 24V) is available from Circuits Electronics and Future Electronics. Compare the offers above to find the best price.
How do I measure fan or shaft RPM with the A3144?
Mount the sensor close to the rotating part and fix two magnets with opposite poles on the shaft or fan blade, alternating north and south. Each magnet pass produces an output pulse, so count the pulses per second and convert to RPM.
How do I wire the A3144 to a microcontroller?
Its output is open-collector, so connect a pull-up resistor, typically around 10 kΩ, from the output to the logic supply you want to read, and connect the output to a digital input. Power the sensor from 3.5 to 24 V and share ground with the controller. Check the datasheet pin order for your package before wiring.
