Unsoldered GY-471 3A Range MAX471 Current Sensor Module


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Approx Restocking Date: 25 to 30 Days
SKU: 1794142
  1. Product: GY-471 MAX471 Current Sensor Module
  2. Operating voltage: 3V – 36V
  3. Operating current: +/- 3A
  4. Sensor: MAX471
  5. Soldering: Unsoldered components


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Brand: Generic
Category: Current and Voltage Sensor

The MAX471/MAX472 are complete, bidirectional, highside current-sense amplifiers for portable PCs, telephones, and other systems where battery/DC power-line monitoring is critical. High-side power-line monitoring is especially useful in battery-powered systems since it does not interfere with the ground paths of the battery chargers or monitors often found in “smart” batteries.

The MAX471 has an internal 35mΩ current-sense resistor and measures battery currents up to ±3A. For applications requiring higher current or increased flexibility, the MAX472 functions with external sense and gain-setting resistors. Both devices have a current output that can be converted to a ground-referred voltage with a single resistor, allowing a wide range of battery voltages and currents.

An open-collector SIGN output indicates current-flow direction, so the user can monitor whether a battery is being charged or discharged. Both devices operate from 3V to 36V, draw less than 100µA over temperature, and include an 18µA max shutdown mode.


  1. Complete High-Side Current Sensing
  2. Precision Internal Sense Resistor (MAX471)
  3. 2% Accuracy Over Temperature
  4. Monitors Both Charge and Discharge
  5. 3A Sense Capability with Internal Sense Resistor (MAX471)
  6. Higher Current-Sense Capability with External Sense Resistor (MAX472)
  7. 100µA Max Supply Current
  8. 18µA Max Shutdown Mode
  9. 3V to 36V Supply Operation
  10. 8-Pin DIP/SO Packages
  11. Customization: Suitable for electronic projects
  12. Application: Current measurement in circuits

Package Includes:

1 x Unsoldered GY-471 3A Range MAX471 Current Sensor Module

SKU: 1794142 Category:

GY-471 MAX471 Current Sensor Module

Operating Voltage (V)

3V  to 36V

Operating Current (A):

+/- 3A



Sensor outputs

1V / Amp


Unsoldered components

Length (mm):


Width (mm):


Shipping Weight 0.003 kg
Shipping Dimensions 6 × 5 × 1 cm
15 Days Warranty

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects. Replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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Country Of Origin: China