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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  Manufacturer Part No Order Code Manufacturer / Description
Availability Price For
Price (Incl GST)
Quantity
ACS712ELCTR-20A-T
ACS712ELCTR-20A-T - Linear Current Sensor, Hall Effect, +/- 20A, SOIC-8

1329624

Linear Current Sensor, Hall Effect, +/- 20A, SOIC-8

ALLEGRO MICROSYSTEMS

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

  • 111 available for next business day delivery
  • 2,977 available for 5 - 6 business days delivery
+ Check Stock & Lead Times

  • 111 available for next business day delivery: Order before 6.30pm (Mon – Fri. Excluding National Holidays)
  • 2,977 available for 5 - 6 business days delivery: (US stock) Order before 20:00 Mon-Fri (excluding National Holidays)

More stock available week commencing 30/11/20

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Packaging Options
Suggested replacement for:1329624
1329624RL in Re-reel

Restricted Item
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

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

ALLEGRO MICROSYSTEMS

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

  • 114 available for 4 - 5 business days delivery
+ Check Stock & Lead Times

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

More stock available week commencing 21/09/20

Restricted Item
ACS712ELCTR-05B-T
ACS712ELCTR-05B-T - Linear Current Sensor, Hall Effect, +/- 5A, SOIC-8

1329623

Linear Current Sensor, Hall Effect, +/- 5A, SOIC-8

ALLEGRO MICROSYSTEMS

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

  • 7,710 available for 4 - 5 business days delivery
  • 2,994 available for 5 - 6 business days delivery
+ Check Stock & Lead Times

  • 7,710 available for 4 - 5 business days delivery: (UK stock) Order before 23:35 Mon-Fri (excluding National Holidays)
  • 2,994 available for 5 - 6 business days delivery: (US stock) Order before 20:00 Mon-Fri (excluding National Holidays)

More stock available week commencing 30/11/20

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Packaging Options
Suggested replacement for:1329623
1329623RL in Re-reel

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

2396419

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

HONEYWELL

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

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

More stock available week commencing 21/09/20

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

2361959

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

MICROCHIP

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

  • 1,734 available for 4 - 5 business days delivery
+ Check Stock & Lead Times

  • 1,734 available for 4 - 5 business days delivery: (UK stock) Order before 23:35 Mon-Fri (excluding National Holidays)

More stock available week commencing 2/11/20

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Packaging Options
Suggested replacement for:2361959
2361959RL in Re-reel

Restricted Item
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

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

ALLEGRO MICROSYSTEMS

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

  • 2,196 available for 5 - 6 business days delivery
+ Check Stock & Lead Times

  • 2,196 available for 5 - 6 business days delivery: (US stock) Order before 20:00 Mon-Fri (excluding National Holidays)
Available until stock is exhausted

Restricted Item
ACS711KLCTR-12AB-T
ACS711KLCTR-12AB-T - Current Sensor, Overcurrent Fault, 4 mA, 100 kHz, SOIC, 8 Pins, 3 V, 5.5 V

2057423

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

ALLEGRO MICROSYSTEMS

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

Available for back order

+ Check Stock & Lead Times
  • 2,975 more will be available on 10/10/20
  • More stock available week commencing 2/11/20 Contact me when back in stock

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

    1097504

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

    TEXAS INSTRUMENTS

    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

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

    2580756

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

    INFINEON

    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

    No Longer Manufactured

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    Restricted Item