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  • 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
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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

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

    ALLEGRO MICROSYSTEMS

    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

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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

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

    ALLEGRO MICROSYSTEMS

    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

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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

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

    ALLEGRO MICROSYSTEMS

    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

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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

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

    ALLEGRO MICROSYSTEMS

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

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  • More stock available week commencing 9/12/22

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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

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

    MICROCHIP

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

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    Delivery in 2-4 business days
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    More stock available week commencing 8/1/22

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