Current Sensors

A current sensor is a device that detects and converts current to an easily measurable output voltage, which is proportional to the current through the measured path. There are a wide variety of sensors, and each sensor is suitable for a specific current range and environmental condition. Among these sensors, a current sensing resistor is the most commonly used. It can be considered a current-to-voltage converter, where inserting a resistor into the current path, the current is converted to voltage in a linear way. The technology used by the current sensor is important because different sensors can have different characteristics for a variety of applications.


Current sensors are based on either open or closed loop hall effect technology. A closed-loop sensor has a coil that is actively driven to produce a magnetic field that opposes the field produced by the current being sensed. The hall sensor is used as a null-detecting device, and the output signal is proportional to the current being driven into the coil, which is proportional to the current being measured.


In an open loop current sensor, the magnetic flux created by the primary current is concentrated in a magnetic circuit and measured using a hall device. The output from the hall device is the signal conditioned to provide an exact (instantaneous) representation of the primary current.


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Videos

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  Manufacturer Part No Order Code Manufacturer / Description
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ACS712ELCTR-05B-T
ACS712ELCTR-05B-T - Current Sensor, Voltage Isolation, 10 mA, 80 kHz, SOIC, 8 Pins, 4.5 V, 5.5 V

1329623

ALLEGRO MICROSYSTEMS - Current Sensor, Voltage Isolation, 10 mA, 80 kHz, SOIC, 8 Pins, 4.5 V, 5.5 V

IC, SENSOR, CURRENT, 5A, SOIC8; Quiescent Current:10mA; Bandwidth:80kHz; Sensor Case Style:SOIC; No. of Pins:8Pins; Supply Voltage Min:4.5V; Supply Voltage Max:5.5V; Operating Temperature Min:-40°C; Operating Temperature Max:85°C; Product Range:-; RoHS P

  • 1,380 available for 4 - 5 business days delivery
  • 374 available for 5 - 6 business days delivery
+ Check Stock & Lead Times

  • 1,380 available for 4 - 5 business days delivery: (UK stock) Order before 23:35 Mon-Fri (excluding National Holidays)
  • 374 available for 5 - 6 business days delivery: (SG stock) Order before 13:00 Tue & before 19:00 Thu (excluding National Holidays)

  • 3,000 will be available for delivery on 24/08/19
  • 3,000 will be available for delivery on 15/10/19
  • 3,000 will be available for delivery on 30/10/19
  • More stock available week commencing 6/01/20

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    Suggested replacement for:1329623
    1329623RL in Re-reel

    1+ $7.02 ($8.07) 5+ $6.20 ($7.13) 10+ $5.48 ($6.30) 25+ $4.44 ($5.11) 50+ $3.93 ($4.52) 100+ $3.82 ($4.39) 500+ $3.21 ($3.69) 1000+ $3.00 ($3.45) More Pricing...

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    Min: 1 Mult: 1
    ACS712ELCTR-20A-T
    ACS712ELCTR-20A-T - Current Sensor, Voltage Isolation, 10 mA, 80 kHz, SOIC, 8 Pins, 4.5 V, 5.5 V

    1329624

    ALLEGRO MICROSYSTEMS - Current Sensor, Voltage Isolation, 10 mA, 80 kHz, SOIC, 8 Pins, 4.5 V, 5.5 V

    SENSOR, CURRENT, 20A, SOIC8; Quiescent Current:10mA; Bandwidth:80kHz; Sensor Case Style:SOIC; No. of Pins:8Pins; Supply Voltage Min:4.5V; Supply Voltage Max:5.5V; Operating Temperature Min:-40°C; Operating Temperature Max:85°C; Product Range:-; MSL:MSL 2

    • 151 available for next business day delivery
    • 2,337 available for 4 - 5 business days delivery
    • 8,088 available for 5 - 6 business days delivery
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    • 151 available for next business day delivery: Order before 6.30pm (Mon – Fri. Excluding National Holidays)
    • 2,337 available for 4 - 5 business days delivery: (UK stock) Order before 23:35 Mon-Fri (excluding National Holidays)
    • 1,847 available for 5 - 6 business days delivery: (SG stock) Order before 13:00 Tue & before 19:00 Thu (excluding National Holidays)
    • 6,241 available for 5 - 6 business days delivery: (US stock) Order before 20:00 Mon-Fri (excluding National Holidays)

    More stock available week commencing 6/01/20

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    1+ $7.02 ($8.07) 5+ $6.20 ($7.13)

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    CSLW6B200M
    CSLW6B200M - Current Sensor, CSLW Series, Open Loop-200mA to 200mA, Sink, Source Output, 4.5 Vdc to 10.5 Vdc

    2396419

    HONEYWELL - Current Sensor, CSLW Series, Open Loop-200mA to 200mA, Sink, Source Output, 4.5 Vdc to 10.5 Vdc

    CURRENT SENSOR, +/-0.2A, 4.5V-10.5V; Sensor Output:Sink / Source; Supply Voltage DC Min:4.5V; Supply Voltage DC Max:10.5VDC; Current Measuring Range DC:-200mA to 200mA; Current Measuring Range AC:-200mA to 200mA; Response Time:3µs; Accuracy %:-; Product

    • 2 available for next business day delivery
    • 36 available for 4 - 5 business days delivery
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    • 2 available for next business day delivery: Order before 6.30pm (Mon – Fri. Excluding National Holidays)
    • 36 available for 4 - 5 business days delivery: (UK stock) Order before 23:35 Mon-Fri (excluding National Holidays)

    More stock available week commencing 28/10/19

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    1+ $25.84 ($29.72)

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    ACS758LCB-050B-PFF-T
    ACS758LCB-050B-PFF-T - Current Sensor, Current Conductor, 10 mA, 120 kHz, PFF, 5 Pins, 3 V, 5.5 V

    1791392

    ALLEGRO MICROSYSTEMS - Current Sensor, Current Conductor, 10 mA, 120 kHz, PFF, 5 Pins, 3 V, 5.5 V

    IC, CURRENT SENSOR, 50A, 3CB; Quiescent Current:10mA; Bandwidth:120kHz; Sensor Case Style:PFF; No. of Pins:5Pins; Supply Voltage Min:3V; Supply Voltage Max:5.5V; Operating Temperature Min:-40°C; Operating Temperature Max:150°C; Product Range:ACS758 Famil

    • 1,518 available for 4 - 5 business days delivery
    • 70 available for 5 - 6 business days delivery
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    • 1,518 available for 4 - 5 business days delivery: (UK stock) Order before 23:35 Mon-Fri (excluding National Holidays)
    • 70 available for 5 - 6 business days delivery: (SG stock) Order before 13:00 Tue & before 19:00 Thu (excluding National Holidays)

    More stock available week commencing 28/10/19

    Each

    1+ $11.61 ($13.35) 5+ $10.20 ($11.73) 10+ $9.18 ($10.56) 34+ $8.15 ($9.37)

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    ACS758LCB-100B-PFF-T
    ACS758LCB-100B-PFF-T - Current Sensor, Current Conductor, 10 mA, 120 kHz, PFF, 5 Pins, 3 V, 5.5 V

    1791393

    ALLEGRO MICROSYSTEMS - Current Sensor, Current Conductor, 10 mA, 120 kHz, PFF, 5 Pins, 3 V, 5.5 V

    IC, CURRENT SENSOR, 100A, 3CB; Quiescent Current:10mA; Bandwidth:120kHz; Sensor Case Style:PFF; No. of Pins:5Pins; Supply Voltage Min:3V; Supply Voltage Max:5.5V; Operating Temperature Min:-40°C; Operating Temperature Max:150°C; Product Range:ACS758 Fami

    • 1,703 available for 4 - 5 business days delivery
    • 2,206 available for 5 - 6 business days delivery
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    • 1,703 available for 4 - 5 business days delivery: (UK stock) Order before 23:35 Mon-Fri (excluding National Holidays)
    • 2,206 available for 5 - 6 business days delivery: (US stock) Order before 20:00 Mon-Fri (excluding National Holidays)

    More stock available week commencing 9/12/19

    Each

    1+ $11.61 ($13.35) 5+ $10.20 ($11.73) 10+ $9.18 ($10.56) 34+ $8.15 ($9.37) 68+ $7.55 ($8.68) 102+ $6.52 ($7.50) 510+ $6.12 ($7.04) More Pricing...

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    IR25750LTRPBF
    IR25750LTRPBF - Current Sensor, SOT, 5 Pins, -5 V, 20.8 V

    2580756

    INFINEON - Current Sensor, SOT, 5 Pins, -5 V, 20.8 V

    CURRENT SENSOR IC, SOT-23-5; Quiescent Current:-; Bandwidth:-; Sensor Case Style:SOT; No. of Pins:5Pins; Supply Voltage Min:-5V; Supply Voltage Max:20.8V; Operating Temperature Min:-40°C; Operating Temperature Max:125°C; Product Range:µHVIC Series; RoHS

    • 850 available for 4 - 5 business days delivery
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    • 850 available for 4 - 5 business days delivery: (UK stock) Order before 23:35 Mon-Fri (excluding National Holidays)

  • 3,000 will be available for delivery on 8/10/19
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    1+ $1.24 ($1.43) 10+ $1.03 ($1.18) 100+ $0.666 ($0.766) 1000+ $0.534 ($0.614) 3000+ $0.449 ($0.516)

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    Min: 1 Mult: 1
    ACS711KLCTR-12AB-T
    ACS711KLCTR-12AB-T - Current Sensor, Overcurrent Fault, 4 mA, 100 kHz, SOIC, 8 Pins, 3 V, 5.5 V

    2057423

    ALLEGRO MICROSYSTEMS - Current Sensor, Overcurrent Fault, 4 mA, 100 kHz, SOIC, 8 Pins, 3 V, 5.5 V

    CURRENT SENSOR, 12.5A, 3.3V, 8SOIC; Quiescent Current:4mA; Bandwidth:100kHz; Sensor Case Style:SOIC; No. of Pins:8Pins; Supply Voltage Min:3V; Supply Voltage Max:5.5V; Operating Temperature Min:-40°C; Operating Temperature Max:125°C; Product Range:-; RoH

    • 7,965 available for 4 - 5 business days delivery
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    • 7,965 available for 4 - 5 business days delivery: (UK stock) Order before 23:35 Mon-Fri (excluding National Holidays)

  • 369 will be available for delivery on 24/08/19
  • More stock available week commencing 9/12/19

    Each

    1+ $4.91 ($5.65) 5+ $4.57 ($5.26) 10+ $3.80 ($4.37) 25+ $3.16 ($3.63) 50+ $2.82 ($3.24) 100+ $2.68 ($3.08) More Pricing...

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    EMC1701-2-AIZL-TR
    EMC1701-2-AIZL-TR - Current Sensor, High Side, 950 µA, MSOP, 10 Pins, 3 V, 24 V

    2361959

    MICROCHIP - Current Sensor, High Side, 950 µA, MSOP, 10 Pins, 3 V, 24 V

    CURRENT SENSOR, HIGH SIDE, MSOP-10; Quiescent Current:950µA; Bandwidth:-; Sensor Case Style:MSOP; No. of Pins:10Pins; Supply Voltage Min:3V; Supply Voltage Max:24V; Operating Temperature Min:-40°C; Operating Temperature Max:85°C; Product Range:-; RoHS Ph

    • 1,859 available for 4 - 5 business days delivery
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    • 1,859 available for 4 - 5 business days delivery: (UK stock) Order before 23:35 Mon-Fri (excluding National Holidays)

    More stock available week commencing 9/12/19

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    1+ $1.49 ($1.71) 10+ $1.48 ($1.70)

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    XTR116UA .
    XTR116UA . - Current Sensor, Loop Transmitter, 200 µA, 380 kHz, SOIC, 8 Pins, 7.5 V, 36 V

    1097504

    TEXAS INSTRUMENTS - Current Sensor, Loop Transmitter, 200 µA, 380 kHz, SOIC, 8 Pins, 7.5 V, 36 V

    TRANSMITTER 420MA, SMD, SOIC8, 116; Quiescent Current:200µA; Bandwidth:380kHz; Sensor Case Style:SOIC; No. of Pins:8Pins; Supply Voltage Min:7.5V; Supply Voltage Max:36V; Operating Temperature Min:-55°C; Operating Temperature Max:125°C; Product Range:-;

    No Longer Stocked