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 Newark Part No. Manufacturer / Description
Availability Price for:
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ACS758LCB-050B-PFF-T
ACS758LCB-050B-PFF-T - Current Sensor, Linear, 10 mA, 120 kHz, PFF, 5 Pins, 3 V, 5.5 V

04R7131

ALLEGRO MICROSYSTEMS

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

LINEAR CURRENT SENSOR 10mA, -5; 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 RoHS Compliant: Yes

1,062 in stock

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1,062 in stock for same day shipping: Order before 8pm EST Standard Shipping (Mon – Fri. Excluding National Holidays)

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

04R7132

ALLEGRO MICROSYSTEMS

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

LINEAR CURRENT SENSOR, 10mA, PFF-5; 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 RoHS Compliant: Yes

1,400 in stock

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    ACS712ELCTR-20A-T
    ACS712ELCTR-20A-T - Current Sensor, 10 mA, 80 kHz, SOIC, 8 Pins, 4.5 V, 5.5 V

    31M3133

    ALLEGRO MICROSYSTEMS

    Current Sensor, 10 mA, 80 kHz, SOIC, 8 Pins, 4.5 V, 5.5 V

    SENSOR, CURRENT, 20mA, SOIC-8; 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 RoHS Compliant: Yes

    3,228 in stock

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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

    62M4099

    HONEYWELL

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

    CURRENT SENSOR, +/-200mA, 4.5VDC to 10.5VDC; Sensor Output:Sink / Source; Supply Voltage DC Min:4.5V; Supply Voltage DC Max:10.5V; Current Measuring Range DC:-200mA to 200mA; Current Measuring Range AC:-200mA to 200mA; Accuracy %:- RoHS Compliant: Yes

    91 in stock

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    More stock available week commencing 10/12/20

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    EMC1701-2-AIZL-TR
    EMC1701-2-AIZL-TR - Current Sensor, High Side, 950 A, -40 C, 85 C, 3 V, 24 V RoHS Compliant: Yes

    12X8572

    MICROCHIP

    Current Sensor, High Side, 950 A, -40 C, 85 C, 3 V, 24 V RoHS Compliant: Yes

    Current Sensor, High Side, 950 A, -40 C, 85 C, 3 V, 24 V RoHS Compliant: Yes

    1,734 in stock

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    Delivery in 5-7 business days for in stock items

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    IR25750LTRPBF
    IR25750LTRPBF - CURRENT SENSOR IC, SOT-23-5

    92Y9246

    INFINEON

    CURRENT SENSOR IC, SOT-23-5

    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 RoHS Compliant: Yes

    322 in stock

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    ACS712ELCTR-05B-T
    ACS712ELCTR-05B-T - Current Sensor, Hall Effect, 8 mA, 80 kHz, SOIC, 8 Pins, 4.5 V, 5.5 V

    27M3644

    ALLEGRO MICROSYSTEMS

    Current Sensor, Hall Effect, 8 mA, 80 kHz, SOIC, 8 Pins, 4.5 V, 5.5 V

    HALL EFFECT SENSOR, SOIC-8; Quiescent Current:8mA; 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 RoHS Compliant: Yes

    Available for back order

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    ACS711KLCTR-12AB-T
    ACS711KLCTR-12AB-T - Current Sensor, Overcurrent Fault, 4 mA, 100 kHz, -40 C, 125 C, 3 V, 5.5 V RoHS Compliant: Yes

    71T9736

    ALLEGRO MICROSYSTEMS

    Current Sensor, Overcurrent Fault, 4 mA, 100 kHz, -40 C, 125 C, 3 V, 5.5 V RoHS Compliant: Yes

    Current Sensor, Overcurrent Fault, 4 mA, 100 kHz, -40 C, 125 C, 3 V, 5.5 V RoHS Compliant: Yes

    Available for back order

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    Delivery in 5-7 business days for in stock items

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