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ACS37220 Low-Resistance Current Sensors

Allegro MicroSystems ACS37220 Low-Resistance Current Sensors are housed in a 7-pin QFN package and accurately measure currents up to 200A. The Allegro MicroSystems ACS37220 sensors offer minimal internal conductor resistance (<100μΩ). Using two Hall plates, the devices offer common-mode field rejection and enhanced performance in the presence of external magnetic fields.

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Part #

Board Mount Current Sensors High Power Density 100A, 5V Current Sensor in QFN Package

ACS37220LEZATR-100B5
Allegro MicroSystems
1: S/12.03
2,593In Stock

Mfr. Part #
ACS37220LEZATR-100B5

Mouser Part #
250-LEZATR-100B5

Allegro MicroSystems

Board Mount Current Sensors High Power Density 100A, 5V Current Sensor in QFN Package

Datasheet

2,593In Stock

Cut Tape

S/12.03

S/10.74

S/9.69

S/9.30

Reel

S/7.75

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

100 A

Current Sense

4 us

10 Hz to 10 MHz

5 V

Analog

+ 150 C

- 40 C

QFN-7

5.5 V

4.5 V

Low-Resistance Current Sensor

Board Mount Current Sensors High Power Density 200A, 5V Current Sensor in QFN Package

ACS37220LEZATR-200B5
Allegro MicroSystems
1: S/12.03
4,684In Stock

Mfr. Part #
ACS37220LEZATR-200B5

Mouser Part #
250-LEZATR-200B5

Allegro MicroSystems

Board Mount Current Sensors High Power Density 200A, 5V Current Sensor in QFN Package

Datasheet

4,684In Stock

S/12.03

S/10.74

S/9.69

S/9.30

View

Min.: 1
Mult.: 1

200 A

Current Sense

4 us

10 Hz to 10 MHz

5 V

Analog

+ 150 C

- 40 C

QFN-7

5.5 V

4.5 V

Low-Resistance Current Sensor

Board Mount Current Sensors High Power Density 150A, 5V Current Sensor in QFN Package

ACS37220LEZATR-150B5
Allegro MicroSystems
1: S/12.03
2,234In Stock

Mfr. Part #
ACS37220LEZATR-150B5

Mouser Part #
250-LEZATR-150B5

Allegro MicroSystems

Board Mount Current Sensors High Power Density 150A, 5V Current Sensor in QFN Package

Datasheet

2,234In Stock

S/12.03

S/10.74

S/9.69

S/9.30

View

Min.: 1
Mult.: 1

150 A

Current Sense

4 us

10 Hz to 10 MHz

5 V

Analog

+ 150 C

- 40 C

QFN-7

5.5 V

4.5 V

Low-Resistance Current Sensor

Board Mount Current Sensors High Power Density 150A, 3.3V Current Sensor in QFN Package

ACS37220LEZATR-150B3
Allegro MicroSystems
1: S/12.03
5,988Expected 11/5/2026

Mfr. Part #
ACS37220LEZATR-150B3

Mouser Part #
250-LEZATR-150B3

Allegro MicroSystems

Board Mount Current Sensors High Power Density 150A, 3.3V Current Sensor in QFN Package

Datasheet

5,988Expected 11/5/2026

S/12.03

S/10.74

S/9.69

S/9.30

View

Min.: 1
Mult.: 1

150 A

Current Sense

4 us

10 Hz to 10 MHz

3.3 V

Analog

+ 150 C

- 40 C

QFN-7

3.45 V

3.15 V

Low-Resistance Current Sensor