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ACHS-7122 Current Sensor Carrier -20A to +20A

Pololu item #: 4031
Brand: Pololu supply outlook
Status: Clearance 
RoHS 3 compliant

Price break Unit price (US$)
1 3.95 6.95


backorders allowed

Clearance notice: These older current sensors are on clearance at a discounted price and will be discontinued once remaining component stock is depleted.

This board is a simple carrier of Broadcom’s bidirectional ±20A ACHS-7122 Hall effect-based linear current sensor, which offers a low-resistance (~0.7 mΩ) current path and electrical isolation. This version accepts a bidirectional current input with a magnitude up to 20 A and outputs a proportional analog voltage (100 mV/A) centered at 2.5 V with a typical error of ±1.5%. It operates from 4.5 V to 5.5 V and is intended for use in 5 V systems.

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

 Description Specs (10) Pictures (8) Resources (5) FAQs (0) On the blog (2) 

ACHS-7122 Current Sensor Carrier -20A to +20A.

ACHS-712x current sensor carrier (cs01a), bottom view with dimensions.

ACHS-712x Current Sensor Carrier pinout.

Schematic diagram of the ACHS-712x Current Sensor Carrier.

ACHS-7122 Current Sensor Carrier -20A to +20A with included 0.1″ header pins.

ACHS-7122 Current Sensor Carrier -20A to +20A, top view.

Current sensor carrier soldered with high-current wires.

Current sensor carrier with solderless ring terminal connectors (not included).


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ACHS-7125 Current Sensor Carrier -50A to +50A
0.100" (2.54 mm) Breakaway Male Header: 1×40-Pin, Straight, Black
0.100" (2.54 mm) Breakaway Male Header: 1×40-Pin, Right Angle
0.100" (2.54 mm) Female Header: 1x3-Pin, Straight
0.1" (2.54mm) Crimp Connector Housing: 1x3-Pin 25-Pack
T Connector Male-Female Pair

Related Categories

ACHS-712x Current Sensor Carriers
Clearance Current Sensors
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Terminal Blocks
Premium Jumper Wires
Wires with Pre-Crimped Terminals
0.1″ (2.54 mm) Male Headers
Electronics Prototyping
Motion Control Modules
Motors and Gearboxes
RC Servos
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