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CKSR 6-NP , CKSR6-NP

Second. Nominal Signal[Instantaneous:Voltage 2.5 +/- 0.625 V]
  • MacroQuest Part#CKSR 6-NP
  • ManufacturerLEM
  • Standard Lead TimeNA
  • Part StatusActive
  • $4.28 - $5.26
    / Pieces
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    Pieces(Min. Order)
    1-99 Pieces $5.26
    100-999 Pieces $4.78
    >=1000 Pieces $4.28
    Quantity:
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    DC: within 2 years
    (1306 In Stock)
    $4.28
    LT: 2-4 weeks
    (9000 In Stock)
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    Description FAQ Review
    Description

    CKSR6-NP – High-Precision Closed-Loop Current Sensor

     

    CKSR6-NP Product Overview

    The CKSR6-NP is a high-precision, closed-loop multi-range current sensor from LEM’s CKSR series. It is designed to measure DC, AC, and pulsed currents while providing galvanic isolation between the primary and secondary circuits. With a rated measurement current of 6 A, the sensor uses flux-gate, closed-loop compensation technology. Thanks to its excellent linearity, very low zero-point temperature drift, and fast response, it is widely used in AC variable speed drives, servo motor drives, switch-mode power supplies (SMPS), uninterruptible power supplies (UPS), solar inverters, and other precision industrial applications.

    Whether you are designing a compact power supply system or looking for an accurate current feedback component for a motor drive project, the CKSR6-NP delivers stable and reliable current sensing in a space-saving package.

     

    CKSR6-NP Key Highlights

    1. Ultra-fast response – captures minute current changes

    A response time of only 0.3 µs allows the CKSR6-NP to capture transient current fluctuations in real time, making it ideal for applications that require rapid reaction, such as inverter overcurrent protection and high-frequency switching power supplies.

    2. High accuracy across the full range – trustworthy data

    The sensor achieves an accuracy of ±0.8 % over the entire measurement range. With a rated detection range of ±6 A and linearity of ±1 %, it provides stable and accurate output for most low-voltage, low-current applications.

    3. Highly integrated – easy to embed in PCB designs

    The compact through-hole PCB design has a low profile, fitting easily into space-constrained boards. The sensor provides four primary pins that allow multi-range switching from ±1.5 A to ±6 A via different connection configurations – greatly increasing design flexibility.

    4. Excellent environmental robustness and safety

    Wide operating temperature range from -40 ℃ to +105 ℃ ensures stable performance in both cold and hot environments.

    1000 Vrms isolation voltage protects downstream control circuits from high-voltage surges, and the sensor is UL recognized and RoHS compliant.

    Outstanding dv/dt immunity and low offset temperature coefficient guarantee stable voltage output even in noisy environments such as variable frequency drives.

     

    CKSR6-NP Specifications

    Parameter

    Value

    Brand

    LEM

    Series

    CKSR series

    Measured quantity

    AC/DC current

    Rated current (IPN)

    ±6 A

    Sensor type

    Flux-gate, closed-loop compensation

    Output voltage

    Ratio-metric voltage output

    Sensitivity

    104.2 mV/A

    Accuracy

    ±0.8 %

    Linearity

    ±1 %

    Frequency bandwidth

    300 kHz

    Response time

    0.3 µs

    Supply voltage

    4.75 V – 5.25 V DC

    Supply current

    ≤ 20 mA

    Isolation voltage

    1000 Vrms

    Operating temperature

    -40 ℃ ~ +105 ℃

    Mounting type

    Through-hole (PCB)

    Flammability rating

    UL94V-0

     

    CKSR6-NP Typical Applications

    The CKSR6-NP is widely used in the following industrial and consumer power electronics applications:

    Motor drives – AC variable frequency drives, servo motor drives, DC motor static converters

    Power supplies – switch-mode power supplies (SMPS), uninterruptible power supplies (UPS)

    Renewable energy – solar photovoltaic inverters

    Battery management – battery-powered systems, battery current monitoring

    Industrial power – welding equipment power supplies, industrial power monitoring

     

    Why choose CKSR6-NP?

    Feature

    Traditional open-loop sensor

    CKSR6-NP (closed-loop flux-gate)

    Accuracy & linearity

    Moderate accuracy, susceptible to temperature drift

    ±0.8 % accuracy, ±1 % linearity over full range; closed-loop compensation, very low drift

    Response speed

    Slow (typically > µs)

    0.3 µs ultra-fast response – captures transient overcurrent in time

    Noise immunity

    Moderate, vulnerable to dv/dt interference

    Excellent dv/dt immunity – works reliably in noisy inverter / VFD environments

    Thermal stability & drift

    Significant drift with temperature

    Low offset temperature coefficient – stable output over -40 ℃ to +105 ℃

    Isolation protection

    Varies widely

    1000 Vrms high isolation voltage; UL / RoHS certified

     

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    -A:We offer a 1 year warranty for form fit and function for MacroQuest stock. 


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