Pololu ACS711 current sensor -25A to + 25A

Current sensor operating in the range +/-25, And on the basis of Hall effect. The output is a voltage analog. Supply voltage from 3.0 V to 5.5 V. the Product was replaced by the new current sensor ACS711EX -31 AND 31 to A.

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Price 27,00 zł




The product was replaced by the new current sensor ACS711EX -31 AND +31.



Płytka czujnika ACS711Specification

  • Supply voltage logic: 3.0 V to 5.5 V
  • Current consumption in the list of puzzle: 6mA
  • Sensitivity:
    • for power 3.3 V: 55 mV/A
    • for power supply of 5 V: 83 mV/A
  • Weight-1.3 g
  • Dimensions: 18 x 20.5 mm


In our offer there is also a separate chip: ACS711KLCTR.


The module consists of a printed circuit Board made for the system Allegro ACS711KLCTR-25AB-T. The sensor operates based on the Hall effect. The chip can be powered from voltage range: 3.0 V to 5.5 V. is Characterized by a sensitivity of 55 mV/A when powered at 3.3 V and 84 mV/A at 5 V.


Basic module features:

  • The layout is designed for current flowing in both directions (from -25 to 2 5A)
  • Thanks nieskiej resistance of the system (1.2 m Ohm) and wire the power loss is very small.
  • Through the use of Hall effect current paths are isolated from the parts of the puzzle.
  • The frequency range of 100 kHz.
  • The accuracy of the order of 5% at room temperature.
  • The FAULT output is translated into a low state when the current exceeds the allowable range of +/- 2 5A




Wyprowadzenia i podłączenie czujnika prądu ACS711     Wymiary czujnika pradu ACS711



The sensor requires a supply voltage of 3V - 5.5 V, which is indicated on pin Vcc. The output of the sensor (pin - OUT)- voltage analogue centering value VCC/2. When powered from 3.3 V the output voltage is changed to 55mV at 1A of measured current. The positive direction of the current is increased the value of the voltage is negative, on the contrary, decreases.

The pattern on the output voltage VOUT switches as follows:


VOUT = (0.055 V/A * i + 1.65 V) * Vcc / 3.3 V

Pin FAULT, usually in a state of high reaches in the low state when the measured current exceeds the allowable range of +/-25 A.



Schemat podłączenia czujnika prądu ACS711 firmy Allegro





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The time of payment depends on the hours of ELIXIR session of the sender's bank and the recipient of the transfer (more information on this subject, for example on the website


The table presents available forms of delivery in Poland


Carrier and

Bank wire

by cash


Poczta Polska

terms of service

9,90 PLN17,90 PLN1-3 days

Kurier GLS

terms of service

14,90 PLN22,90 PLN

1-2 days

Paczkomaty 24/7 

terms of service

12,90 PLN-1-3 days

If the amount to pay for products exceeds 500 PLN
Delivery is for free!


  • Free delivery of orders over 500 PLN does not apply to parcels addressed outside of Poland.
  • Free delivery does not apply when changing orders.
  • The delivery period is counted in working days from the date of dispatch of the order.