ACS72981ELRATR-200B3 Current Sensor Large Carrier -200A to +200A, 3.3V

SKU: POLOLU-5281 Brand: Pololu

This is the large version of a simple carrier for Allegro’s ACS72981ELRATR-200B3 Hall effect-based, electrically isolated current sensor, which offers a...

Special Price $14.04 AUD, inc GST

Regular Price $21.85 AUD, inc GST

$12.76 AUD, exc GST

Special pricing ends 24 March 2025

* this special may end earlier than shown

Available with a lead time
Expect dispatch between Dec 30 and Jan 01

ACS72981 Current Sensor Compact Carrier (top) and Large Carrier (bottom) size comparison.

Pololu are offering these breakout boards with support from Allegro Microsystems as an easy way to use or evaluate their ACS72981xLR Hall effect-based, electrically isolated current sensors; Pololu therefore recommend careful reading of the ACS72981 datasheet before using this product. The following list details some of the sensor’s key features:

Hall effect-based sensor with electrically isolated current path allows the sensor to be inserted anywhere along the current path and to be used in applications that require electrical isolation.
Differential Hall sensing rejects common-mode fields, so the orientation of the sensor relative to uniform external magnetic fields (e.g. the Earth’s magnetic field) has less effect on the measurement.
The conductive path internal resistance is typically 0.2 mO, and the PCB is made with 6 layers of 2-oz copper, so very little power is lost in the module.
High-bandwidth 250 kHz analog output voltage proportional to AC or DC currents
Less than 2 µs response time.
Integrated digital temperature compensation circuitry allows improved accuracy over the full operating temperature range.
Carrier boards, available in compact and large sizes, offer a variety of ways to insert it into the current path along with 0.1"-pitch (breadboard-compatible) power, ground, and output pins.
3.3V and 5V versions available.
Unidirectional and bidirectional versions available.

The connection points are labeled on the bottom silkscreen. The silkscreen also shows the direction that is interpreted as positive current flow via the +i arrow.

This product is listed in:

Sensors>Current

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