20A Range Current Sensor Module ACS712
Review: 5 - "A masterpiece of literature" by , written on May 4, 20020
20A Range Current Sensor Module ACS712
20A Range Current Sensor Module ACS712

20A Range Current Sensor Module ACS712

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  • Product SKU: KG041
₹ 290 ₹ 399
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The ACS721 current module is based on the ACS712 sensor, which can accurately detect AC or DC current. Sensing and controlling current flow is a fundamental requirement in a wide variety of applications including, over-current protection circuits, battery chargers, switching mode power supplies, digital watt meters, programmable current sources, etc.

The 20A ACS712 Range Current Sensor Module consists of a precise, low-offset, linear Hall circuit with a copper conduction path located near the surface of the die. Applied current flowing through this copper conduction path generates a magnetic field in which the Hall IC converts into a proportional voltage. The maximum AC or DC that can be detected can reach 20A, and the present current signal can be read via the analog I / O port of Arduino.
  • Current sensor chip: ACS712ELC-20A
  • Pin 5V power supply, on-board power indicator
  • The module can measure the positive and negative 20 amps, corresponding to the analog output 100mV / A
  • There is no detection current through, the output voltage is VCC / 2

Note: ACS712 is based on the principle of the Hall test, please use this field to avoid an impact!

Pinout Diagram

Pin Configuration

  • Vcc :Input voltage is +5V for typical applications
  • Output : Outputs Analog voltage proportional to current
  • Ground : Connected to ground of circuit
  • Wire In/Wire Out : The wire through current has to be measured is connected here

Technical Details

  • Current sensor chip: ACS712ELC-20A
  • Operating Voltage (V) : 4.5V ~ 5.5V DC
  • Measure Current Range: -20 ~ +20A
  • Sensitivity: 100mV/A

Physical Attributes

  • Length * Width * Height in mm : 30 * 12 * 12
  • Weight (gm): 4

Integration with Arduino

Sample Code

Integration with Raspberry Pi

Additional Details

  • The low-noise analog signal path
  • Device bandwidth is set via the new FILTER pin
  • 5 µs output rise time in response to step input current
  • Small footprint, low-profile SOIC8 package
  • 2.1 kV RMS minimum isolation voltage from pins 1-4 to pins 5-8
  • 5.0 V, single-supply operation
  • 66 to 185 mV/A output sensitivity
  • Output voltage proportional to AC or DC currents
  • Factory-trimmed for accuracy
  • Extremely stable output offset voltage
  • Nearly zero magnetic hysteresis
  • The ratiometric output from the supply voltage..

Product Video


Customer Reviews

Based on 7 reviews
received on time good quality

received on time good quality

pappu @ mahender singh
valuable product

valuable product

It works!!!

Item works like a charm with the right library. Seems to be spot on but I will check with my Rigol when I have time

champa karketta
Great product !

Cheap, good, stable, and accurate

Easy to use

Easy to use

mohd. firoz
Analog output

This unit accurately measures ac and dc current. The zero-current output is half the power supply voltage so you must use a regulated source and compensate for variations.

nabav shekh
Well made and work as designed

These current sensors work as designed and are well put together. If you're in the market I would highly recommend them.