ACS72981KLRATR-150U3 Current Sensor Compact Carrier 0A to 150A, 3.3V

Pololu item #: 5259
Brand: Pololu supply outlook
Status: Active and Preferred 
RoHS 3 compliant

Price break Unit price (US$)
1 9.95
5 9.15
25 8.42
100 7.75

backorders allowed

This is the compact version of a simple carrier for Allegro’s ACS72981KLRATR-150U3 Hall effect-based, electrically isolated current sensor, which offers a low-resistance (~0.2 mΩ) current path and a high 250 kHz bandwidth for fast response times.

Part Suffix Range Supply Voltage Sensitivity @ 3.3 V Zero Point @ 3.3 V Size
150U3 0-150 A (unidirectional) 3.0 V to 3.6 V 17.6 mV/A 0.33 V 0.7″×0.8″

Alternatives available with variations in these parameter(s): version size Select variant…

 Description Specs (12) Pictures (13) Resources (6) FAQs (0) On the blog (0) 


Size: 0.7″ × 0.8″
Weight: 1.4 g

General specifications

Typical operating voltage: 3.3 V
Current sense: 17.6 mV/A1
Minimum logic voltage: 3.0 V
Maximum logic voltage: 3.6 V
Supply current: 14 mA2
Version: 0A to 150A (unidirectional 150A), 3.3V
Current sensor: Allegro ACS72981KLRATR-150U3

Identifying markings

PCB dev codes: cs04a
Other PCB markings: 0J14752
Other PCB markings: 3V3 U15


At VCC = 3.3 V.

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