The ACS712 Current Sensor (5A) provides a simple way to measure AC or DC current up to ±5A. Based on the Allegro ACS712 Hall effect sensor, this module outputs a proportional analogue voltage that can be read directly by an Arduino or other microcontroller via an analogue input pin.

With its low-resistance current path and electrical isolation, the ACS712 is well suited for over-current protection circuits, battery chargers, switching-mode power supplies, digital watt meters, and programmable current sources.

Key Features

• ±5A Measurement Range – Detects both AC and DC current up to 5A
• Analogue Output – 185 mV/A sensitivity for straightforward ADC readings
• Hall Effect Sensing – Non-intrusive measurement with electrical isolation
• Low Resistance – Minimal impact on the circuit being measured
• 5V Compatible – Operates from 4.5V to 5.5V supply

Specifications

• Supply Voltage: 4.5V – 5.5V DC
• Measurement Range: -5A to +5A
• Sensitivity: 180 – 190 mV/A (typical 185 mV/A)
• Sensor IC: ACS712ELCTR-05B-T

Also Available

• ACS712 Current Sensor – 20A
• ACS711EX Current Sensor Carrier – ±31A
• ACS714 Current Sensor Carrier – ±5A
• ACS724 Current Sensor Carrier – ±50A
• SparkFun Low Current Sensor Breakout – ACS712

Ideal For

• Over-current protection circuits
• Battery chargers and monitoring systems
• Digital watt meters and power monitors
• Switching-mode power supply feedback
• Arduino and microcontroller current sensing projects

Package Contents

• 1× ACS712 Current Sensor Module (5A)