Board Mount Hall Effect/Magnetic Sensors

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Si720x & Si721x Hall Effect Magnetic Sensors

Silicon Labs Si720x and Si721x Hall Effect Magnetic Position Sensors combine a chopper-stabilized Hall element with a low-noise analog amplifier and 13-bit analog to digital converter. The sensors have proven CMOS design techniques and incorporate digital signal processing for precise temperature and offset drift compensation. The Si720x and Si721x enable use with larger air gaps and smaller magnets and are AEC-Q100 qualified for automotive applications.

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Part #

Board Mount Hall Effect/Magnetic Sensors Hall effect magnetic sensor with omnipolar switch

SI7201-B-06-IV
Silicon Labs
1: $0.85
36,384In Stock

Mfr. Part No.
SI7201-B-06-IV

Mouser Part No
634-SI7201-B-06-IV

Silicon Labs

Board Mount Hall Effect/Magnetic Sensors Hall effect magnetic sensor with omnipolar switch

Learn More

Datasheet

36,384In Stock

$0.85

$0.805

$0.719

$0.641

View

Min.: 1
Mult.: 1

Omnipolar

2 mT

0.6 mT

1.7 V to 5.5 V

- 40 C

+ 125 C

SMD/SMT

SOT-23-3

Si720x

Cut Tape

Board Mount Hall Effect/Magnetic Sensors Linear output Hall effect magnetic sensor with analog output

SI7211-B-00-IV
Silicon Labs
1: $1.26
33,741In Stock

Mfr. Part No.
SI7211-B-00-IV

Mouser Part No
634-SI7211-B-00-IV

Silicon Labs

Board Mount Hall Effect/Magnetic Sensors Linear output Hall effect magnetic sensor with analog output

Learn More

Datasheet

33,741In Stock

$1.26

$1.03

$0.904

$0.876

View

Min.: 1
Mult.: 1

Linear

5.5 mA

20 mT to 200 mT

2.25 V to 5.5 V

- 40 C

+ 125 C

SMD/SMT

SOT-23-3

Si721x

Cut Tape

Board Mount Hall Effect/Magnetic Sensors Magnetic Hall Sensor Omnipolar switch

SI7201-B-20-IVR
Silicon Labs
1: $0.82
29,759In Stock

Mfr. Part No.
SI7201-B-20-IVR

Mouser Part No
634-SI7201-B-20-IVR

Silicon Labs

Board Mount Hall Effect/Magnetic Sensors Magnetic Hall Sensor Omnipolar switch

Learn More

Datasheet

29,759In Stock

Cut Tape

$0.82

$0.671

$0.636

$0.568

Reel

$0.511

View

Min.: 1
Mult.: 1

Reel: 3,000

Omnipolar

6.5 mA

4.9 mT

2.3 mT

1.71 V to 5.5 V

- 40 C

+ 125 C

SMD/SMT

SOT23-3

Si720x

Reel, Cut Tape

Board Mount Hall Effect/Magnetic Sensors Magnetic Hall Sensor Omnipolar switch

SI7201-B-20-IV
Silicon Labs
1: $0.85
5,856In Stock

Mfr. Part No.
SI7201-B-20-IV

Mouser Part No
634-SI7201-B-20-IV

Silicon Labs

Board Mount Hall Effect/Magnetic Sensors Magnetic Hall Sensor Omnipolar switch

Learn More

Datasheet

5,856In Stock

$0.85

$0.805

$0.719

$0.701

View

Min.: 1
Mult.: 1

Omnipolar

4.9 mT

2.3 mT

1.7 V to 5.5 V

- 40 C

+ 125 C

SMD/SMT

SOT23-3

Si720x

Cut Tape

Board Mount Hall Effect/Magnetic Sensors Hall effect magnetic sensor with omnipolar switch

SI7201-B-05-IVR
Silicon Labs
1: $0.85
6,735In Stock

Mfr. Part No.
SI7201-B-05-IVR

Mouser Part No
634-SI7201-B-05-IVR

Silicon Labs

Board Mount Hall Effect/Magnetic Sensors Hall effect magnetic sensor with omnipolar switch

Learn More

Datasheet

6,735In Stock

Cut Tape

$0.85

$0.805

$0.719

$0.687

View

Reel

$0.455

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

Omnipolar

2 mT

0.6 mT

1.7 V to 5.5 V

- 40 C

+ 125 C

SMD/SMT

SOT-23-3

Si720x

Reel, Cut Tape, MouseReel

Board Mount Hall Effect/Magnetic Sensors Magnetic Hall Sensor Omnipolar switch

SI7201-B-86-IV
Silicon Labs
1: $0.82
6,887In Stock

Mfr. Part No.
SI7201-B-86-IV

Mouser Part No
634-SI7201-B-86-IV

Silicon Labs

Board Mount Hall Effect/Magnetic Sensors Magnetic Hall Sensor Omnipolar switch

Learn More

Datasheet

6,887In Stock

$0.82

$0.671

$0.588

$0.561

View

Min.: 1
Mult.: 1

Omnipolar

3.7 mT

1.4 mT

1.7 V to 5.5 V

- 40 C

+ 125 C

SMD/SMT

SOT23-3

Si720x

Cut Tape

Board Mount Hall Effect/Magnetic Sensors IC Hall Sensor I2C Low Push Pull (0x31)

SI7210-B-12-IM2
Silicon Labs
1: $1.26
11,117In Stock
End of Life

Mfr. Part No.
SI7210-B-12-IM2

Mouser Part No
634-SI7210-B-12-IM2

End of Life

Silicon Labs

Board Mount Hall Effect/Magnetic Sensors IC Hall Sensor I2C Low Push Pull (0x31)

Learn More

Datasheet

11,117In Stock

$1.26

$1.17

$1.03

$0.904

View

Min.: 1
Mult.: 1

Magnetic

6.8 mA

+/- 7 mT

+/- 4 mT

1.71 V to 5.5 V

- 40 C

+ 125 C

SMD/SMT

DFN-8

Si7210

Cut Tape

Board Mount Hall Effect/Magnetic Sensors Hall effect magnetic sensor with omnipolar switch

SI7201-B-02-FVR
Silicon Labs
1: $1.16
2,705In Stock

Mfr. Part No.
SI7201-B-02-FVR

Mouser Part No
634-SI7201-B-02-FVR

Silicon Labs

Board Mount Hall Effect/Magnetic Sensors Hall effect magnetic sensor with omnipolar switch

Learn More

Datasheet

2,705In Stock

Cut Tape

$1.16

$1.11

$0.989

$0.947

Reel

$0.769

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

Omnipolar

0.9 mT

0.2 mT

1.7 V to 3.6 V

0 C

+ 70 C

SMD/SMT

SOT-23-3

Si720x

Reel, Cut Tape, MouseReel

Board Mount Hall Effect/Magnetic Sensors Hall effect magnetic sensor with omnipolar switch

SI7201-B-04-IV
Silicon Labs
1: $0.85
8,470In Stock

Mfr. Part No.
SI7201-B-04-IV

Mouser Part No
634-SI7201-B-04-IV

Silicon Labs

Board Mount Hall Effect/Magnetic Sensors Hall effect magnetic sensor with omnipolar switch

Learn More

Datasheet

8,470In Stock

$0.85

$0.805

$0.719

$0.642

View

Min.: 1
Mult.: 1

Omnipolar

1.4 mT

0.2 mT

1.7 V to 5.5 V

- 40 C

+ 125 C

SMD/SMT

SOT-23-3

Si720x

Cut Tape

Board Mount Hall Effect/Magnetic Sensors Hall effect magnetic sensor with omnipolar switch

SI7201-B-04-IVR
Silicon Labs
1: $1.74
14,526In Stock

Mfr. Part No.
SI7201-B-04-IVR

Mouser Part No
634-SI7201-B-04-IVR

Silicon Labs

Board Mount Hall Effect/Magnetic Sensors Hall effect magnetic sensor with omnipolar switch

Learn More

Datasheet

14,526In Stock

Cut Tape

$1.74

$1.11

$0.989

$0.814

View

Reel

$0.522

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

Omnipolar

1.4 mT

0.2 mT

1.7 V to 5.5 V

- 40 C

+ 125 C

SMD/SMT

SOT-23-3

Si720x

Reel, Cut Tape, MouseReel

Board Mount Hall Effect/Magnetic Sensors Magnetic Hall Sensor Omnipolar switch

SI7201-B-30-IVR
Silicon Labs
1: $0.85
7,680In Stock

Mfr. Part No.
SI7201-B-30-IVR

Mouser Part No
634-SI7201-B-30-IVR

Silicon Labs

Board Mount Hall Effect/Magnetic Sensors Magnetic Hall Sensor Omnipolar switch

Learn More

Datasheet

7,680In Stock

Cut Tape

$0.85

$0.805

$0.719

$0.688

Reel

$0.558

View

Min.: 1
Mult.: 1

Reel: 3,000

Omnipolar

6.5 mA

7 mT

4.1 mT

1.71 V to 5.5 V

- 40 C

+ 125 C

SMD/SMT

SOT23-3

Si720x

Reel, Cut Tape

Board Mount Hall Effect/Magnetic Sensors Linear output magnetic sensor with 250 Hz PWM output

SI7212-B-00-IVR
Silicon Labs
1: $2.27
5,897In Stock

Mfr. Part No.
SI7212-B-00-IVR

Mouser Part No
634-SI7212-B-00-IVR

Silicon Labs

Board Mount Hall Effect/Magnetic Sensors Linear output magnetic sensor with 250 Hz PWM output

Learn More

Datasheet

5,897In Stock

Cut Tape

$2.27

$1.45

$1.29

$1.06

Reel

$0.676

View

Min.: 1
Mult.: 1

Reel: 3,000

Linear

560 uA

6 mA

20 mT to 200 mT

1.7 V to 5.5 V

- 40 C

+ 125 C

SMD/SMT

SOT-23-3

Si721x

Reel, Cut Tape

Board Mount Hall Effect/Magnetic Sensors Linear output Hall effect magnetic sensor with analog output

SI7217-B-01-IV
Silicon Labs
1: $1.28
9In Stock
300Expected 2026/06/12

Mfr. Part No.
SI7217-B-01-IV

Mouser Part No
634-SI7217-B-01-IV

Silicon Labs

Board Mount Hall Effect/Magnetic Sensors Linear output Hall effect magnetic sensor with analog output

Learn More

Datasheet

9In Stock

300Expected 2026/06/12

$1.28

$1.22

$1.10

$0.983

View

Min.: 1
Mult.: 1

Linear

5.5 mA

20 mT to 200 mT

2.25 V to 5.5 V

- 40 C

+ 125 C

SMD/SMT

SOT-23-5

Si721x

Cut Tape

Board Mount Hall Effect/Magnetic Sensors IC Hall Sensor I2C Low Push Pull (0x33)

SI7210-B-14-IM2
Silicon Labs
1: $1.26
344In Stock
End of Life

Mfr. Part No.
SI7210-B-14-IM2

Mouser Part No
634-SI7210-B-14-IM2

End of Life

Silicon Labs

Board Mount Hall Effect/Magnetic Sensors IC Hall Sensor I2C Low Push Pull (0x33)

Learn More

Datasheet

344In Stock

$1.26

$1.17

$1.03

$1.00

View

Min.: 1
Mult.: 1

Magnetic

6.8 mA

+/- 7 mT

+/- 4 mT

1.71 V to 5.5 V

- 40 C

+ 125 C

SMD/SMT

DFN-8

Si7210

Cut Tape

Board Mount Hall Effect/Magnetic Sensors Hall effect magnetic sensor with omnipolar switch

SI7201-B-00-FV
Silicon Labs
1: $1.52
160In Stock

Mfr. Part No.
SI7201-B-00-FV

Mouser Part No
634-SI7201-B-00-FV

Silicon Labs

Board Mount Hall Effect/Magnetic Sensors Hall effect magnetic sensor with omnipolar switch

Learn More

Datasheet

160In Stock

$1.52

$1.02

$0.894

$0.814

View

Min.: 1
Mult.: 1

Omnipolar

1.1 mT

0.2 mT

1.7 V to 3.6 V

0 C

+ 70 C

SMD/SMT

SOT-23-3

Si720x

Cut Tape

Board Mount Hall Effect/Magnetic Sensors Hall effect magnetic sensor with omnipolar switch

SI7201-B-02-FV
Silicon Labs
1: $1.16
141In Stock

Mfr. Part No.
SI7201-B-02-FV

Mouser Part No
634-SI7201-B-02-FV

Silicon Labs

Board Mount Hall Effect/Magnetic Sensors Hall effect magnetic sensor with omnipolar switch

Learn More

Datasheet

141In Stock

$1.16

$1.11

$0.99

$0.852

View

Min.: 1
Mult.: 1

Omnipolar

0.9 mT

0.2 mT

1.7 V to 3.6 V

0 C

+ 70 C

SMD/SMT

SOT-23-3

Si720x

Cut Tape

Board Mount Hall Effect/Magnetic Sensors Hall effect magnetic sensor with omnipolar switch

SI7201-B-05-IV
Silicon Labs
1: $0.85
569In Stock

Mfr. Part No.
SI7201-B-05-IV

Mouser Part No
634-SI7201-B-05-IV

Silicon Labs

Board Mount Hall Effect/Magnetic Sensors Hall effect magnetic sensor with omnipolar switch

Learn More

Datasheet

569In Stock

$0.85

$0.805

$0.719

$0.642

View

Min.: 1
Mult.: 1

Omnipolar

2 mT

0.6 mT

1.7 V to 5.5 V

- 40 C

+ 125 C

SMD/SMT

SOT-23-3

Si720x

Cut Tape

Board Mount Hall Effect/Magnetic Sensors Hall effect magnetic sensor with omnipolar switch

SI7201-B-06-IVR
Silicon Labs
1: $1.74
116In Stock

Mfr. Part No.
SI7201-B-06-IVR

Mouser Part No
634-SI7201-B-06-IVR

Silicon Labs

Board Mount Hall Effect/Magnetic Sensors Hall effect magnetic sensor with omnipolar switch

Learn More

Datasheet

116In Stock

Cut Tape

$1.74

$1.11

$0.989

$0.814

Reel

$0.511

View

Min.: 1
Mult.: 1

Reel: 3,000

Omnipolar

2 mT

0.6 mT

1.7 V to 5.5 V

- 40 C

+ 125 C

SMD/SMT

SOT-23-3

Si720x

Reel, Cut Tape

Board Mount Hall Effect/Magnetic Sensors Magnetic Hall Sensor Omnipolar switch

SI7201-B-30-IV
Silicon Labs
1: $0.85
78In Stock

Mfr. Part No.
SI7201-B-30-IV

Mouser Part No
634-SI7201-B-30-IV

Silicon Labs

Board Mount Hall Effect/Magnetic Sensors Magnetic Hall Sensor Omnipolar switch

Learn More

Datasheet

78In Stock

$0.85

$0.805

$0.719

$0.642

View

Min.: 1
Mult.: 1

Omnipolar

7 mT

4.1 mT

1.7 V to 5.5 V

- 40 C

+ 125 C

SMD/SMT

SOT23-3

Si720x

Cut Tape

Board Mount Hall Effect/Magnetic Sensors Magnetic Hall Sensor Omnipolar switch

SI7201-B-32-IV
Silicon Labs
1: $0.85
118In Stock

Mfr. Part No.
SI7201-B-32-IV

Mouser Part No
634-SI7201-B-32-IV

Silicon Labs

Board Mount Hall Effect/Magnetic Sensors Magnetic Hall Sensor Omnipolar switch

Learn More

Datasheet

118In Stock

$0.85

$0.805

$0.719

$0.642

View

Min.: 1
Mult.: 1

Omnipolar

7 mT

4.1 mT

1.7 V to 5.5 V

- 40 C

+ 125 C

SMD/SMT

SOT23-3

Si720x

Cut Tape

Board Mount Hall Effect/Magnetic Sensors Magnetic Hall Sensor Omnipolar switch

SI7201-B-32-IVR
Silicon Labs
1: $0.85
1,860In Stock

Mfr. Part No.
SI7201-B-32-IVR

Mouser Part No
634-SI7201-B-32-IVR

Silicon Labs

Board Mount Hall Effect/Magnetic Sensors Magnetic Hall Sensor Omnipolar switch

Learn More

Datasheet

1,860In Stock

Cut Tape

$0.85

$0.805

$0.719

$0.688

Reel

$0.464

View

Min.: 1
Mult.: 1

Reel: 3,000

Omnipolar

6.5 mA

7 mT

4.1 mT

1.71 V to 5.5 V

- 40 C

+ 125 C

SMD/SMT

SOT23-3

Si720x

Reel, Cut Tape

Board Mount Hall Effect/Magnetic Sensors Magnetic Hall Sensor Omnipolar switch

SI7201-B-40-IV
Silicon Labs
1: $0.85
201In Stock

Mfr. Part No.
SI7201-B-40-IV

Mouser Part No
634-SI7201-B-40-IV

Silicon Labs

Board Mount Hall Effect/Magnetic Sensors Magnetic Hall Sensor Omnipolar switch

Learn More

Datasheet

201In Stock

$0.85

$0.805

$0.719

$0.642

View

Min.: 1
Mult.: 1

Omnipolar

15 mT

9.6 mT

1.7 V to 5.5 V

- 40 C

+ 125 C

SMD/SMT

SOT23-3

Si720x

Cut Tape

Board Mount Hall Effect/Magnetic Sensors Magnetic Hall Sensor Omnipolar switch

Si7201-B-80-FV
Silicon Labs
1: $0.85
166In Stock

Mfr. Part No.
Si7201-B-80-FV

Mouser Part No
634-SI7201-B-80-FV

Silicon Labs

Board Mount Hall Effect/Magnetic Sensors Magnetic Hall Sensor Omnipolar switch

Learn More

Datasheet

166In Stock

$0.85

$0.805

$0.719

$0.642

View

Min.: 1
Mult.: 1

Omnipolar

3.4 mT

1.7 mT

1.7 V to 3.6 V

0 C

+ 70 C

SMD/SMT

SOT23-3

Si720x

Cut Tape

Board Mount Hall Effect/Magnetic Sensors Magnetic Hall Sensor Omnipolar switch

Si7201-B-84-IV
Silicon Labs
1: $0.85
178In Stock

Mfr. Part No.
Si7201-B-84-IV

Mouser Part No
634-SI7201-B-84-IV

Silicon Labs

Board Mount Hall Effect/Magnetic Sensors Magnetic Hall Sensor Omnipolar switch

Learn More

Datasheet

178In Stock

$0.85

$0.805

$0.719

$0.642

View

Min.: 1
Mult.: 1

Omnipolar

3.7 mT

1.4 mT

1.7 V to 5.5 V

- 40 C

+ 125 C

SMD/SMT

SOT23-3

Si720x

Cut Tape

Board Mount Hall Effect/Magnetic Sensors Magnetic Hall Sensor Omnipolar switch

Si7201-B-84-IVR
Silicon Labs
1: $1.74
1,913In Stock

Mfr. Part No.
Si7201-B-84-IVR

Mouser Part No
634-SI7201-B-84-IVR

Silicon Labs

Board Mount Hall Effect/Magnetic Sensors Magnetic Hall Sensor Omnipolar switch

Learn More

Datasheet

1,913In Stock

Cut Tape

$1.74

$1.11

$0.989

$0.814

Reel

$0.511

View

Min.: 1
Mult.: 1

Reel: 3,000

Omnipolar

6.5 mA

1.71 V to 5.5 V

- 40 C

+ 125 C

SMD/SMT

SOT23-3

Si720x

Reel, Cut Tape

Si720x & Si721x Hall Effect Magnetic Sensors

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