THROUGH HOLE MOUNT Magnetic Field Sensors 159

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Part RoHS Manufacturer Sensors or Transducers Type Mounting Feature No. of Terminals Output Type Package Shape or Style Output Range Package Body Material Minimum Range Of Magnetic Field Maximum Supply Voltage Maximum Output Current Technology Screening Level Input Mode Maximum Magnetic Field Range Hysteresis Body Length/Diameter Body Width Power Supplies (V) Output Circuit Type Resistance Package Equivalence Code No. of Axes Sub-Category Linearity (%) Body Height Minimum Supply Voltage Maximum Operating Temperature Response Time Minimum Operating Temperature Sensitivity (mV/G) Terminal Finish Termination Type Output Interface Type Output (V) Maximum Operating Current Output Polarity Additional Features Maximum Measurement Range (mm) Housing JESD-609 Code Operating Frequency Minimum Measurement Range (mm)

DRV5013AGELPGMQ1

Texas Instruments

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

CURRENT OUTPUT

RECTANGULAR

0-30mA

-9 mT

38 V

30 A

AEC-Q100

BIPOLAR(LATCHED)

9 mT

12 mT

4 mm

1.52 inch

5.05 mm

2.7 V

150 Cel

-40 Cel

Matte Tin (Sn)

SOLDER

2-WIRE INTERFACE

OPEN-DRAIN

3.5 mA

AEC-Q100, SHORT CIRCUIT PROTECTION, REVERSE SUPPLY PROTECTION

e3

DRV5013BCELPGMQ1

Texas Instruments

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

CURRENT OUTPUT

RECTANGULAR

0-30mA

-18 mT

38 V

30 A

AEC-Q100

BIPOLAR(LATCHED)

18 mT

24 mT

4 mm

1.52 inch

5.05 mm

2.7 V

150 Cel

-40 Cel

Matte Tin (Sn)

SOLDER

2-WIRE INTERFACE

OPEN-DRAIN

3.5 mA

AEC-Q100, SHORT CIRCUIT PROTECTION, REVERSE SUPPLY PROTECTION

e3

DRV5023AJQLPGQ1

Texas Instruments

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

DIGITAL CURRENT

RECTANGULAR

0-30mA

1 mT

38 V

30 A

AEC-Q100

UNIPOLAR

12 mT

3.7 mT

4 mm

1.52 inch

5.05 mm

2.7 V

125 Cel

-40 Cel

Matte Tin (Sn)

SOLDER

2-WIRE INTERFACE

OPEN-DRAIN

3.5 mA

INVERTING

AEC-Q100, SHORT CIRCUIT PROTECTION, REVERSE SUPPLY PROTECTION

PLASTIC

e3

AH3363Q-P-B

Diodes Incorporated

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

3

CURRENT OUTPUT

RECTANGULAR

2 mT

28 V

AEC-Q100

UNIPOLAR

7.2 mT

2 mT

4.1 mm

1.5 inch

OPEN-DRAIN

SIP3,.02,50

3 mm

3 V

150 Cel

-40 Cel

MATTE TIN

SOLDER

OPEN-DRAIN

4 mA

PLASTIC

e3

AH3369Q-P-B

Diodes Incorporated

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

3

CURRENT OUTPUT

RECTANGULAR

30-55mA

12.5 mT

28 V

55 A

AEC-Q100

UNIPOLAR

20 mT

2.5 mT

4.1 mm

1.5 inch

SIP3,.03,50

3 mm

3 V

150 Cel

-40 Cel

MATTE TIN

SOLDER

OPEN-DRAIN

4 mA

LOW SENSITIVITY: BOP AND BRP OF 175G AND 150G TYPICAL

e3

AH3761-PG-B

Diodes Incorporated

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

3

CURRENT OUTPUT

RECTANGULAR

50-90mA

PLASTIC/EPOXY

-6 mT

28 V

90 A

6 mT

6 mT

4.1 mm

1.5 inch

SIP3,.03,50

4.55 mm

3 V

125 Cel

-40 Cel

MATTE TIN

SOLDER

OPEN-DRAIN

6 mA

SEATED HEIGHT-CALCULATED

e3

AH3761-PG-A

Diodes Incorporated

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

3

CURRENT OUTPUT

RECTANGULAR

50-90mA

PLASTIC/EPOXY

-6 mT

28 V

90 A

6 mT

6 mT

4.1 mm

1.935 inch

SIP3,.03

4.55 mm

3 V

125 Cel

-40 Cel

MATTE TIN

SOLDER

OPEN-DRAIN

6 mA

SEATED HEIGHT-CALCULATED

e3

AH175-PG-A-A

Diodes Incorporated

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

3

PLASTIC/EPOXY

-6 mT

BIPOLAR

6 mT

12

SIP3,.03

Other Sensors

125 Cel

-40 Cel

MATTE TIN

OPEN-COLLECTOR

6 mA

NON-INVERTING

e3

DRV5056A1QLPGM

Texas Instruments

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

ANALOG VOLTAGE

RECTANGULAR

0.535-3.1V

19 mT

3.63 V

1 A

4 mm

1.52 inch

5.05 mm

3 V

125 Cel

-40 Cel

Matte Tin (Sn)

SOLDER

10 mA

IT ALSO HAS POWER SUPPLY VOLTAGE 4.5 TO 5.5V; IT HAS SENSITIVITY 200 MV/MT

PLASTIC

e3

DRV5056A2QLPG

Texas Instruments

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

ANALOG VOLTAGE

RECTANGULAR

0.54-3.1V

39 mT

3.63 V

1 A

4 mm

1.52 inch

5.05 mm

3 V

125 Cel

-40 Cel

Matte Tin (Sn)

SOLDER

10 mA

IT ALSO HAS POWER SUPPLY VOLTAGE 4.5 TO 5.5V; IT HAS SENSITIVITY 100 MV/MT

PLASTIC

e3

DRV5056A4QLPGM

Texas Instruments

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

ANALOG VOLTAGE

RECTANGULAR

0.55-3.1V

155 mT

3.63 V

1 A

4 mm

1.52 inch

5.05 mm

3 V

125 Cel

-40 Cel

Matte Tin (Sn)

SOLDER

10 mA

IT ALSO HAS POWER SUPPLY VOLTAGE 4.5 TO 5.5V; IT HAS SENSITIVITY 25 MV/MT

PLASTIC

e3

MLX92231LUA-AAA-034-BU

Melexis N V

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

3

CURRENT OUTPUT

RECTANGULAR

25-70mA

PLASTIC/EPOXY

3.8 mT

24 V

70 A

CMOS

UNIPOLAR

5 mT

4.1 mm

1.5 inch

SIP3,.1,50

4 mm

2.7 V

150 Cel

-40 Cel

MATTE TIN

SOLDER

3-WIRE INTERFACE

4.5 mA

e3

MLX92241LUA-BAA-108-BU

Melexis N V

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

3

CURRENT OUTPUT

RECTANGULAR

3.6 mT

24 V

CMOS

ISO 26262

9.5 mT

4.1 mm

1.5 inch

SIP3,.1,50

3 mm

2.7 V

150 Cel

-40 Cel

SOLDER

2-WIRE INTERFACE

17 mA

REVERSE POLARITY PROTECTION

PLASTIC

DRV5055A4ELPGMQ1

Texas Instruments

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

ANALOG CURRENT

RECTANGULAR

-1-1mA

3.63 V

1 A

AEC-Q100

4 mm

1.52 inch

5.05 mm

3 V

150 Cel

-40 Cel

Matte Tin (Sn)

SOLDER

10 mA

AEC-Q100; IT ALSO OPERATES AT 4.5 TO 5.5 V SUPPLY VOLTAGE

e3

APS11900LUAA

Allegro MicroSystems

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

3

CURRENT OUTPUT

RECTANGULAR

PLASTIC

4.5 mT

24 V

BICMOS

AEC-Q100; ISO-26262

BIPOLAR(LATCHED)

10 mT

1.5 mT

4.09 mm

1.52 inch

SIP3,.02,50

1

3.02 mm

3 V

150 Cel

-40 Cel

TERMINALS

2-WIRE INTERFACE

PLASTIC

ATS177-PG-B-A

Diodes Incorporated

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

3

PLASTIC/EPOXY

-7 mT

BIPOLAR

BIPOLAR(LATCHED)

7 mT

3.5/20

SIP3,.03,50

Other Sensors

85 Cel

-20 Cel

MATTE TIN

OPEN-COLLECTOR

10 mA

NON-INVERTING

e3

DRV5032FCLPG

Texas Instruments

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

3

DIGITAL CURRENT

RECTANGULAR

-5-5mA

PLASTIC/EPOXY

.5 mT

5.5 V

5 A

OMNIPOLAR

4.8 mT

1.5 mT

4 mm

1.52 inch

SIP3,.1,50

5.05 mm

1.65 V

85 Cel

-40 Cel

MATTE TIN

SOLDER

OPEN-DRAIN

.0035 mA

e3

AH3765Q-P-A

Diodes Incorporated

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

3

CURRENT OUTPUT

RECTANGULAR

30-55mA

PLASTIC/EPOXY

-9 mT

28 V

55 A

AEC-Q100

9 mT

14 mT

4.1 mm

2.235 inch

3/28

OPEN-DRAIN

SIP3,.03

Other Sensors/Transducers

3 V

150 Cel

-40 Cel

MATTE TIN

SOLDER

4 mA

e3

AH3766Q-P-A

Diodes Incorporated

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

CURRENT OUTPUT

RECTANGULAR

30-55mA

-14 mT

28 V

55 A

14 mT

22 mT

4.1 mm

2.235 inch

3 V

150 Cel

-40 Cel

MATTE TIN

SOLDER

4 mA

e3

AH3768Q-P-A

Diodes Incorporated

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

CURRENT OUTPUT

RECTANGULAR

30-55mA

-20 mT

28 V

55 A

20 mT

35 mT

4.1 mm

2.235 inch

3 V

150 Cel

-40 Cel

MATTE TIN

SOLDER

4 mA

e3

AH3769Q-P-A

Diodes Incorporated

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

CURRENT OUTPUT

RECTANGULAR

30-55mA

-25 mT

28 V

55 A

25 mT

44 mT

4.1 mm

2.235 inch

3 V

150 Cel

-40 Cel

MATTE TIN

SOLDER

4 mA

e3

AH3772-P-A

Diodes Incorporated

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

CURRENT OUTPUT

RECTANGULAR

30-55mA

-4 mT

28 V

55 A

4 mT

5 mT

4.1 mm

2.235 inch

3 V

125 Cel

-40 Cel

MATTE TIN

SOLDER

4 mA

e3

AH3775-P-A

Diodes Incorporated

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

CURRENT OUTPUT

RECTANGULAR

30-55mA

-9 mT

28 V

55 A

9 mT

14 mT

4.1 mm

2.235 inch

3 V

125 Cel

-40 Cel

MATTE TIN

SOLDER

4 mA

e3

AH3775-P-B

Diodes Incorporated

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

CURRENT OUTPUT

RECTANGULAR

30-55mA

-9 mT

28 V

55 A

9 mT

14 mT

4.1 mm

1.5 inch

3 V

125 Cel

-40 Cel

MATTE TIN

SOLDER

4 mA

e3

AH3776-P-A

Diodes Incorporated

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

CURRENT OUTPUT

RECTANGULAR

30-55mA

-14 mT

28 V

55 A

14 mT

22 mT

4.1 mm

2.235 inch

3 V

125 Cel

-40 Cel

MATTE TIN

SOLDER

4 mA

e3

AH3776-P-B

Diodes Incorporated

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

CURRENT OUTPUT

RECTANGULAR

30-55mA

-14 mT

28 V

55 A

14 mT

22 mT

4.1 mm

1.5 inch

3 V

125 Cel

-40 Cel

MATTE TIN

SOLDER

4 mA

e3

AH3777-P-A

Diodes Incorporated

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

CURRENT OUTPUT

RECTANGULAR

30-55mA

-17 mT

28 V

55 A

17 mT

28 mT

4.1 mm

2.235 inch

3 V

125 Cel

-40 Cel

MATTE TIN

SOLDER

4 mA

e3

AH9250-P-B

Diodes Incorporated

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

DIGITAL CURRENT

RECTANGULAR

-4 mT

5.5 V

1 A

-3 mT

1 mT

4 mm

1.52 inch

4.705 mm

2.5 V

85 Cel

-40 Cel

MATTE TIN

SOLDER

3 mA

e3

SS460S-T2

Honeywell Sensing And Control

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

CURRENT OUTPUT

RECTANGULAR

-5.5 mT

24 V

20 A

5.5 mT

4 mm

1.52 inch

3 V

150 Cel

-40 Cel

SOLDER

8 mA

TLV4961-1TB

Infineon Technologies

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

CURRENT OUTPUT

RECTANGULAR

0-25mA

-3.5 mT

26 V

25 A

3.5 mT

4 mT

4 mm

1.52 inch

3 V

125 Cel

-40 Cel

TIN

SOLDER

2.5 mA

e3

AH3763Q-P-A

Diodes Incorporated

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

CURRENT OUTPUT

RECTANGULAR

30-55mA

-4.5 mT

28 V

55 A

4.5 mT

6 mT

4.1 mm

2.235 inch

3 V

150 Cel

-40 Cel

MATTE TIN

SOLDER

4 mA

e3

AH3764Q-P-A

Diodes Incorporated

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

CURRENT OUTPUT

RECTANGULAR

30-55mA

-6 mT

28 V

55 A

6 mT

8 mT

4.1 mm

2.235 inch

3 V

150 Cel

-40 Cel

MATTE TIN

SOLDER

4 mA

e3

AH3767Q-P-A

Diodes Incorporated

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

CURRENT OUTPUT

RECTANGULAR

30-55mA

-17 mT

28 V

55 A

17 mT

28 mT

4.1 mm

2.235 inch

3 V

150 Cel

-40 Cel

MATTE TIN

SOLDER

4 mA

e3

ATS277H-PG-B-A

Diodes Incorporated

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

VOLTAGE OUTPUT

RECTANGULAR

-5 mT

20 V

5 mT

7.5 mT

5.22 mm

1.55 inch

5.07 mm

3.5 V

85 Cel

-20 Cel

Matte Tin (Sn)

SOLDER

25 mA

e3

AH173-PG-A-A

Diodes Incorporated

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

3

DIGITAL VOLTAGE

RECTANGULAR

PLASTIC/EPOXY

-6 mT

20 V

25 A

BIPOLAR

BIPOLAR(LATCHED)

6 mT

8 mT

4.1 mm

1.5 inch

12

SIP3,.03,50

Other Sensors

3 V

125 Cel

-40 Cel

MATTE TIN

SOLDER

PASSIVE PULL-UP

6 mA

e3

AH173-PG-A-B

Diodes Incorporated

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

3

DIGITAL VOLTAGE

RECTANGULAR

PLASTIC/EPOXY

-8 mT

20 V

25 A

BIPOLAR

BIPOLAR(LATCHED)

8 mT

8 mT

4.1 mm

1.5 inch

12

SIP3,.03,50

Other Sensors

3 V

125 Cel

-40 Cel

MATTE TIN

SOLDER

PASSIVE PULL-UP

6 mA

e3

AH337-PG-A

Diodes Incorporated

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

3

VOLTAGE OUTPUT

RECTANGULAR

PLASTIC/EPOXY

3 mT

28 V

25 A

UNIPOLAR

15 mT

6 mT

4.1 mm

1.5 inch

12

SIP3,.03,50

Other Sensors

4.2 V

125 Cel

-40 Cel

MATTE TIN

SOLDER

OPEN-DRAIN

4 mA

NON-INVERTING

e3

AH337-PG-B

Diodes Incorporated

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

3

VOLTAGE OUTPUT

RECTANGULAR

PLASTIC/EPOXY

3 mT

28 V

25 A

UNIPOLAR

15 mT

6 mT

4.1 mm

1.5 inch

12

SIP3,.03,50

Other Sensors

4.2 V

125 Cel

-40 Cel

MATTE TIN

SOLDER

OPEN-DRAIN

4 mA

NON-INVERTING

e3

AH375-PG-B

Diodes Incorporated

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

3

VOLTAGE OUTPUT

RECTANGULAR

PLASTIC/EPOXY

-6 mT

20 V

25 A

6 mT

6 mT

4.1 mm

1.5 inch

12

SIP3,.02,50

Other Sensors

2.2 V

125 Cel

-40 Cel

MATTE TIN

SOLDER

OPEN-DRAIN

4 mA

e3

LTS25-NP/SP10

Lem International Sa

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

ANALOG VOLTAGE

RECTANGULAR

5.25 V

22.2 mm

9.3 inch

24 mm

4.75 V

85 Cel

-40 Cel

SOLDER

PLASTIC

A1342LUCTN-T

Allegro MicroSystems

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

DIGITAL CURRENT

RECTANGULAR

20-50mA

-150 mT

5.5 V

50 A

150 mT

4 mm

1.5 inch

4.55 mm

4.5 V

150 Cel

-40 Cel

SOLDER

3-WIRE INTERFACE

10 mA

AEC-Q100

AH3373-P-A

Diodes Incorporated

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

CURRENT OUTPUT

RECTANGULAR

30-55mA

2 mT

28 V

55 A

7.2 mT

2 mT

4.1 mm

2.235 inch

4.55 mm

3 V

125 Cel

-40 Cel

MATTE TIN

SOLDER

4 mA

SEATED HGT CALCULATED

e3

AH3376-P-A

Diodes Incorporated

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

CURRENT OUTPUT

RECTANGULAR

30-55mA

5 mT

28 V

55 A

13.5 mT

1.5 mT

4.1 mm

2.235 inch

4.55 mm

3 V

125 Cel

-40 Cel

MATTE TIN

SOLDER

4 mA

SEATED HGT CALCULATED

e3

AH3377-P-B

Diodes Incorporated

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

CURRENT OUTPUT

RECTANGULAR

30-55mA

7 mT

28 V

55 A

14 mT

2.5 mT

4.1 mm

1.5 inch

4.55 mm

3 V

125 Cel

-40 Cel

MATTE TIN

SOLDER

4 mA

SEATED HGT CALCULATED

e3

AH3382-P-A

Diodes Incorporated

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

CURRENT OUTPUT

RECTANGULAR

30-55mA

2 mT

28 V

55 A

7 mT

2 mT

4.1 mm

2.235 inch

4.55 mm

3 V

125 Cel

-40 Cel

MATTE TIN

SOLDER

4 mA

SEATED HGT CALCULATED

e3

A1377LUCTN-TC1-T

Allegro MicroSystems

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

3

DIGITAL VOLTAGE

RECTANGULAR

PLASTIC

5.5 V

BICMOS

4 mm

1.5 inch

1 ohm

SIP3,.02,50

4 mm

4.5 V

150 Cel

-40 Cel

SOLDER

3-WIRE INTERFACE

10 mA

A1308KUA-3-T

Allegro MicroSystems

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

ANALOG VOLTAGE

RECTANGULAR

5.5 V

4.09 mm

1.52 inch

3 ohm

4.12 mm

4.5 V

125 Cel

-40 Cel

SOLDER

11.5 mA

IT HAS SENSITIVITY OF 3.125 MILLIVOLT PER GAUSS

AH3366Q-P-A

Diodes Incorporated

MAGNETIC FIELD SENSOR,HALL EFFECT

THROUGH HOLE MOUNT

CURRENT OUTPUT

RECTANGULAR

30-55mA

5 mT

28 V

55 A

13.5 mT

1.5 mT

4.1 mm

2.235 inch

4.55 mm

3 V

150 Cel

-40 Cel

MATTE TIN

SOLDER

4 mA

AEC-Q100; SEATED HGT CALCULATED; MEDIUM SENSITIVITY: BOP AND BRP OF 100G AND 85G TYPICAL

e3

Magnetic Field Sensors

Magnetic field sensors are electronic devices that measure the strength and direction of magnetic fields and convert them into a measurable electrical signal. They are commonly used in a variety of applications, such as navigation, automotive, industrial, and medical.

Magnetic field sensors work by detecting the change in magnetic field strength or direction as a magnetic field interacts with a sensing element. The sensing element is typically a small piece of magnetic material, such as a magnetoresistive or Hall-effect sensor, which generates a measurable electrical signal proportional to the strength and direction of the magnetic field.

There are several types of magnetic field sensors, including Hall-effect sensors, magnetoresistive sensors, and fluxgate sensors. Hall-effect sensors work by measuring the change in voltage across a thin strip of semiconductor material as it is exposed to a magnetic field. Magnetoresistive sensors work by measuring the change in resistance of a thin film of magnetic material as it is exposed to a magnetic field. Fluxgate sensors work by using a coil to detect the magnetic field and a feedback circuit to measure the strength and direction of the field.