Current Sensors

GMR/TMR Current Sensors can replace shunts but are lossless and inherently isolated.
Displaying 1 to 20 (of 23 products)
AAL024-10E: 1.5 mT Noncontact Current Sensor, 2.2 KOhm, TDFN6

The AAL024-10E high-performance magnetometer has high sensitivity, high linearity, low-hysteresis, and cross-axis sensitivity, making it ideal for noncontact current-sensing. Features: 3.6 mv/V/Oe typical sensitivity for large output signals and low noise Wide linear range: 0.15 – 1.05 mT; 1.5 mT saturation 2.2 kΩ bridge resistance/1.1 kΩ output impedance for easy interface Low offset: 4 mV/V max. Low hysteresis: 2% max. for excellent repeatability Wide bandwidth: 100 kHz 63 V minimum inherent isolation (pad to electrical connections) Ultraminiature 2.5 mm x 2.5 mm TDFN6 package Applications: Current sensing Low-field sensing for magnetic media Earth’s magnetic field detection Low-Hysteresis Magnetometer—
senses fields from permanent magnets, earth, and current sources.  Typ. Saturation Field (Oe)   Linear Range(|Oe|) 
min.-max.  Sensitivity (mV/V/Oe) 
min.-max.  Resistance 
(Ohms)  Package  15 1.5 - 10.5 3.0 - 4.2  2200 ±20%  TDFN6
(RoHS) Note: Parts are sold in increments of 100 for quantities of 100 or more.
This part is RoHS compliant.

Part Number:
AAL024-10E
Quantity in Stock:
7715

$9.60

ACT001-10E: In-line Analog Current Sensor, DFN6 Package

The ACT001-10E is a high-sensitivity, inline analog TMR current sensor for AC or DC measurements. An integrated current strap senses current, and a TMR bridge sensor element provides a Wheatstone bridge differential output. The output is bipolar and proportional to the current through the strap. The sensor has a -500 mA to +500 mA linear range, with a typical sensitivity of 0.04 mV/V-mA. The part comes in an ultraminiature DFN6 package.

Part Number:
ACT001-10E
Quantity in Stock:
2005

$5.67

AG903B-07E: 0.75A/5A/50A GMR Current Sensor Evaluation Kit

The evaluation board includes three sensor over current-trace modules with three AAL024-10E TDFN current sensors.

The board measures 1.565" x 2.915" (40 mm by 74 mm), and includes three separable modules. The three modules are optimized to measure currents of 0-0.75A, 0-5A, and 0-50A.

Part Number:
AG903B-07E
Quantity in Stock:
1

$75.00

AG905-07E: ALT025 High Current PCB Demonstration

This demonstration features the ALT025 low hysteresis, high-speed TMR magnetometer and a high current PCB layout, optimized for the detection of +/- 200 amps. The board has sturdy screw terminal connections for current input, and it has header pins for sensor power and output.

Part Number:
AG905-07E

$75.00

AG951-07E: SM324-10E Smart TMR Magnetometer Evaluation Kit

The AG951-07 Evaluation Kit has everything you need to calibrate, test, and evaluate the remarkable SM324-10E Smart TMR Magnetometer. The kit includes:
    • An evaluation board with:
          - an SM324-10E sensor.
          - a microcontroller connected to the sensor via I²C.
          - a current-carrying trace under the sensor for evaluating as a current sensor.
    • A powerful, intuitive graphical user interface.
    • Simple software installation.
    • Flexibility to power from USB or an external power supply.
    • Isolated USB interface for safety and noise minimization.
    • USB cable to connect the Evaluation Board to a computer.
    • A small ceramic magnet for evaluating as a proximity sensor.

Part Number:
AG951-07E
Quantity in Stock:
20

$245.00

AG952-07E: SM124-10E Smart GMR Magnetometer Evaluation Kit

The AG952-07 Evaluation Kit has everything you need to calibrate, test, and evaluate the easy-to-use SM124-10E Smart Magnetometer. The kit includes:
    • A 1" x 1.6" (25 mm x 41 mm) evaluation board with:
          - an SM124-10E sensor.
          - a microcontroller connected to the sensor via I²C.
          - a current-carrying trace under the sensor for evaluating as a current sensor.
    • A simple, intuitive graphical user interface.
    • Simple software installation.
    • USB cable to connect the Evaluation Board to a computer.
    • A small ceramic magnet for evaluating as a proximity sensor.

Part Number:
AG952-07E
Quantity in Stock:
5

$95.00

AG953-07E: SM225-10E Smart TMR Magnetometer Evaluation Kit

The AG953-07 Evaluation Kit has everything you need to test and evaluate the easy-to-use SM225-10E Smart Magnetometer. The kit includes:
    • A 1" x 1.6" (25 mm x 41 mm) evaluation board with:
          - an SM225-10E sensor.
          - a microcontroller connected to the sensor via SPI.
          - a current-carrying trace under the sensor for evaluating as a current sensor.
    • A PWM board output for an analog representation of the measured magnetic field.
    • A simple, intuitive graphical user interface.
    • Simple software installation.
    • USB cable to connect the Evaluation Board to a computer.
    • A small ceramic magnet for evaluating as a proximity sensor.

Part Number:
AG953-07E
Quantity in Stock:
3

$95.00

AG953H-07E: SM225-10E Bussbar Current Sensor Demonstration

The AG953H-07 demonstrates high current measurement with the SM225-10E Smart TMR Magnetometer. A 1/4" x 1/2" busbar is mounted to the PCB, and the sensor can detect up to +/-650 amps. Based on the AG953-07E Evaluation Kit, a powerful, intuitive graphical user interface allows the user to control sensor offset, calibration, filtering, and memory.

Part Number:
AG953H-07E
Quantity in Stock:
1

$129.00

AG962-07E: SM125-10E Smart GMR Magnetometer Evaluation Kit

The AG962-07 Evaluation Kit has everything you need to calibrate, test, and evaluate the easy-to-use SM125-10E Smart Magnetometer. The kit includes:
    • A 1" x 1.6" (25 mm x 41 mm) evaluation board with:
          - an SM125-10E sensor.
          - a microcontroller connected to the sensor via I²C.
          - a current-carrying trace under the sensor for evaluating as a current sensor.
    • A simple, intuitive graphical user interface.
    • Simple software installation.
    • USB cable to connect the Evaluation Board to a computer.
    • A small ceramic magnet for evaluating as a proximity sensor.

Part Number:
AG962-07E
Quantity in Stock:
3

$95.00

AG973-07E: SM223-10E Smart I²C TMR Magnetometer Evaluation Kit

The AG973-07 Evaluation Kit has everything you need to test and evaluate the easy-to-use SM223-10E I2C Smart Magnetometer. The kit includes:
    • A 1" x 1.6" (25 mm x 41 mm) evaluation board with:
          - an SM228-10E sensor.
          - a microcontroller connected to the sensor via I2C.
          - a current-carrying trace under the sensor for evaluating as a current sensor.
    • An LED indicating the state of the threshold output.
    • A PWM board output for an analog representation of the measured magnetic field.
    • A simple, intuitive graphical user interface.
    • Simple software installation.
    • USB cable to connect the Evaluation Board to a computer.
    • A small ceramic magnet for evaluating as a proximity sensor.

Part Number:
AG973-07E
Quantity in Stock:
6

$95.00

AG974-07E: ACT001-10E Isolated Current Sensor Evaluation Board

This 2” x 2” square evaluation board allows you to test the remarkable ACT001-10E current sensor and a common application circuit.

The ACT001-10E is a fully-isolated, inline current sensor with an on-chip current strap. A Wheatstone bridge manufactured with NVE’s state-of-the-art tunneling magnetoresistance (TMR) sensor elements detects the magnetic field from the input current across NVE’s unique polymer isolation barrier.

Part Number:
AG974-07E
Quantity in Stock:
13

$50.00

ALT021-10E: 0-0.25 mT TMR Bipolar Analog Sensor, 20 KOhm, x-axis, TDFN6

The ALT021 is an ultrahigh sensitivity Tunneling Magnetoresistance (TMR) analog bridge magnetic sensor. The differential bridge output is bipolar, meaning it is positive for a positive field and negative for an opposite field polarity. Features: ±0.25 mT linear range Ultrahigh sensitivity (500 mV/V/mT typical) Large output signal (200 mV/V/mT typical) 0 - 10 V power supply Wheatstone bridge magnetometer configuration 20 kiloohm device resistance for low power Up to 300 kHz frequency bandwidth 2.5 x 2.5 mm TDFN6 package –40 to 125°C Applications: Motion, speed, and position control
Non-contact current sensing
Mechatronics and robotics
Navigation

Part Number:
ALT021-10E
Quantity in Stock:
9300

$12.00

ALT023-10E: 0-1 mT TMR Bipolar Analog Sensor, 20 KOhm, x-axis, TDFN6

The ALT023-10E is a Tunneling Magnetoresistance (TMR) analog bridge magnetic sensor with extraordinary sensitivity. The differential bridge output is bipolar, meaning it is positive for a positive field and negative for an opposite field polarity. Features: ±1 mT linear range Large signal (200 mV/V typical) Extraordinary sensitivity (200 mV/V/mT typical) Wheatstone bridge magnetometer configuration 0 - 10 V power supply 20 kiloohm device resistance for low power High linearity output (

Part Number:
ALT023-10E
Quantity in Stock:
15

$12.00

ALT023-10E-EVB02: 1A TMR Current Sensor Evaluation Board

This evaluation board measures zero to one amp with just four connections--two for the power supply and two for a differential output. The board is based on the revolutionary ALT023-10E TMR magnetometer, which is ideal for noncontact current sensing. The current-over-trace configuration provides inherent isolation and is more efficient than a shunt.

The board has a sensor plus screw terminals for current connections, a standard 0.1-inch header for sensor connections, and a 1 mm pitch card-edge connector.

The board comes with a business-card size guide with pinouts and specifications. A QR code provides a link to the sensor datasheet.

The board measures 0.9" x 0.5" x 0.063" (22 x 12 x 1.6 mm)

Part Number:
ALT023-10E-EVB02
Quantity in Stock:
50

$24.95

ALT023-10E-EVB03: 7A TMR Current Sensor Evaluation Board

This evaluation board measures zero to seven amps with just four connections--two for the power supply and two for a differential output. The board is based on the revolutionary ALT023-10E TMR magnetometer, which is ideal for noncontact current sensing. The current-over-trace configuration provides inherent isolation and is more efficient than a shunt.

The board has a sensor plus screw terminals for current connections, a standard 0.1-inch header for sensor connections, and a 1 mm pitch card-edge connector.

The board comes with a business-card size guide with pinouts and specifications. A QR code provides a link to the sensor datasheet.

The board measures 0.9" x 0.5" x 0.063" (22 x 12 x 1.6 mm)

Part Number:
ALT023-10E-EVB03
Quantity in Stock:
50

$24.95

ALT023-10E-EVB04: 50A TMR Current Sensor Evaluation Board

This evaluation board measures zero to seven amps with just four connections--two for the power supply and two for a differential output. The board is based on the revolutionary ALT023-10E TMR magnetometer, which is ideal for noncontact current sensing. The current-over-trace configuration provides inherent isolation and is more efficient than a shunt.

The board has a sensor plus 1/4" screw terminals for current connections, a standard 0.1-inch header for sensor connections, and a 1 mm pitch card-edge connector.

The board comes with a business-card size guide with pinouts and specifications. A QR code provides a link to the sensor datasheet.

The board measures 2.0" x 1.9" x 0.63" (52 x 48 x 1.6 mm)

Part Number:
ALT023-10E-EVB04
Quantity in Stock:
48

$24.95

ALT025-10E: 0-10 mT TMR Bipolar Analog Sensor, 20 KOhm, x-axis, TDFN6

The ALT025 is a Tunneling Magnetoresistance (TMR) analog bridge magnetic sensor with an extraordinary amount of signal and linear range. The differential bridge output is bipolar, meaning it is positive for a positive field and negative for an opposite field polarity. The ALT025 has cross-axis sensitivity (across the pads). Features: High sensitivity (8 mV/V/mT typical) Wheatstone bridge magnetometer configuration 0 - 10 V power supply 20 kiloohm device resistance for low power ±10 mT (±100 Oe) linear range High linearity output (

Part Number:
ALT025-10E

$12.00

SM124-10E: General-Purpose 1 mT Smart GMR Magnetometer, TDFN6

The SM124-10E Smart Magnetometer combines an omnipolar GMR sensor element with with easy-to-use digital signal processing.

A digital output provides precise, programmable thresholds. An I²C interface provides magnetic field data, as well as a calibration interface. The device is factory calibrated for accuracy. Calibration coefficients are stored in internal nonvolatile memory.

All commands, data, and coefficients are a single byte, and a slick, elegant data structure lets you get up and running with a minimum of firmware.

Key features include:
  • Can detect magnets more than 50 mm away
  • I²C and digital threshold outputs
  • 0-1 mT linear range
  • 8-bit / 1% output resolution
  • −40°C to +125°C operating range
  • 5% FS accuracy for 0 to 85°C
  • 10 kSps sample rate for fast response
  • 6 mA typical supply current
  • In-plane sensitivity more usable than Hall effect sensors
  • Programmable offset and gain compensation
  • Optional magnet temperature compensation   • 2.2 to 3.6 volt supply
  • Ultraminiature 2.5 x 2.5 x 0.8 mm TDFN package

Part Number:
SM124-10E

$6.88

SM125-10E: General-Purpose 4 mT Smart GMR Magnetometer, TDFN6

The SM125-10E Smart Magnetometer combines an omnipolar GMR sensor element with with easy-to-use digital signal processing.

A digital output provides precise, programmable thresholds. An I²C interface provides magnetic field data, as well as a calibration interface. The device is factory calibrated for accuracy. Calibration coefficients are stored in internal nonvolatile memory.

All commands, data, and coefficients are a single byte, and a slick, elegant data structure lets you get up and running with a minimum of firmware.

Key features include:
  • Can detect magnets more than 50 mm away
  • I²C and digital threshold outputs
  • 0-4 mT linear range
  • 8-bit / 1% output resolution
  • −40°C to +125°C operating range
  • 5% FS accuracy for 0 to 85°C
  • 10 kSps sample rate for fast response
  • 6 mA typical supply current
  • In-plane sensitivity more usable than Hall effect sensors
  • Programmable offset and gain compensation
  • Optional magnet temperature compensation   • 2.2 to 3.6 volt supply
  • Ultraminiature 2.5 x 2.5 x 0.8 mm TDFN package

Part Number:
SM125-10E
Quantity in Stock:
2374

$6.88

SM223-10E: High-Speed Smart TMR Magnetometer, 1.5mT, I2C, TDFN6

The SM223-10E Smart Magnetometer combines a Tunneling Magnetoresistance (TMR) sensor element with sophisticated digital signal processing for a unique combination of speed and precision. An I2C interface provides data as well as an external programming interface, and allows setting a versatile digital threshold output.

Unlike awkward, old-fashioned Hall-effect sensors, TMR is sensitive in-plane for optimal current sensing and easy mechanical interfaces. Key features include:
  •  0 to 1.5 mT linear range
  •  Can detect magnets more than 150 mm away
  •  Simple I2C interface
  •  Programmable digital threshold output
  •  2% of full-scale accuracy for 0 to 125°C
  •  Fast 10000 sample-per-second update rate
  •  Factory calibrated
  •  Programmable offset and gain compensation
  •  -40°C to +125°C operating range
  •  Ultraminiature 2.5 x 2.5 mm DFN6 package

Part Number:
SM223-10E
Quantity in Stock:
5

$6.88

Displaying 1 to 20 (of 23 products)