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Hot Products

CASR15-NP/SP1，CASR 15-NP/SP1

HOT OFFER// Authorized Distributor
  • MacroQuest Part#CASR15-NP/SP1
  • ManufacturerLEM
  • Standard Lead TimeNA
  • Part StatusActive
    • $10.27 - $21.42
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    Description FAQ Review
    Description

    CASR15-NP/SP1 Pocket-Size Fluxgate Current Sensor

     

    CASR15-NP/SP1 Product Overview

    The CASR15-NP/SP1 is a pocket-size fluxgate current sensor from LEM, a world-leading manufacturer of current sensing solutions. Part of the CASR series, it operates from a single +5 V supply and is designed for industrial applications that demand high precision, high reliability, and compact footprint. With its space-saving PCB-mount design, exceptional accuracy, and competitive pricing, the CASR15-NP/SP1 has become a preferred choice for engineers seeking an optimal current measurement solution.

     

    CASR15-NP/SP1 Key Highlights

    Fluxgate Technology for Superior Precision

    The CASR15-NP/SP1 employs advanced fluxgate technology to accurately measure DC, AC, and pulsed currents with galvanic isolation. Compared to traditional Hall-effect sensors, fluxgate technology offers significantly lower offset and gain drift, ensuring long-term stability and measurement reliability.

    Ultra-Fast Response & Dynamic Performance

    Response time: < 0.3 μs (300 ns)

    Bandwidth: DC ~ 300 kHz

    Linearity: ±0.1%

    Accuracy: ±0.8%

    Such outstanding dynamic performance allows it to capture rapidly changing current signals with precision, making it ideal for high-frequency switching power supplies, servo drives, and other real-time-critical applications.

    Extremely Compact – Saves PCB Space

    The CASR15-NP/SP1 features a pocket-size design weighing only ~9 g and occupying just 2.93 cm² of PCB mounting area. Compared to similar products (e.g., LTS series), it is 30% lower in height – a critical advantage in space-constrained modern electronic devices.

    Flexible Output Interface

    The sensor provides a voltage output with a sensitivity of 41.67 mV/A. An additional reference voltage pin on the output side offers versatile configuration options:

    Direct connection to microcontrollers and instrumentation cards with 5 V inputs

    Internal reference voltage can be fed to the A/D converter’s reference input

    Can accept an external reference voltage (0–4 V) from a DSP or A/D converter to eliminate temperature drift of the reference voltage

     

    CASR15-NP/SP1 Technical Specifications

    Parameter

    Value

    Measurement type

    AC/DC bidirectional current sensing

    Rated measuring current (IPN)

    15 A

    Measuring range

    Up to 3 × IPN

    Sensitivity

    41.67 mV/A

    Bandwidth

    DC ~ 300 kHz

    Response time

    < 0.3 μs

    Linearity

    ±0.1%

    Accuracy

    ±0.8%

    Supply voltage

    4.75 V ~ 5.25 V (single +5 V)

    Quiescent current

    20 mA

    Primary conductor resistance

    0.24 mΩ

    Isolation voltage

    600 Vrms

    Operating temperature

    -40°C ~ +85°C

    Mounting

    PCB through-hole

    Number of channels

    1

    Polarization

    Unidirectional

     

    CASR15-NP/SP1 Typical Applications

    With its excellent performance and compact size, the CASR15-NP/SP1 is widely used in various industrial fields:

    Home appliances – current monitoring in air conditioners and variable-frequency appliances

    Solar inverters – current sensing and protection in photovoltaic systems

    Servo drives – current feedback for precision motion control

    Variable-frequency drives – motor current measurement

    Uninterruptible power supplies (UPS) – current monitoring in power systems

    Switch-mode power supplies – current detection in high-efficiency power supplies

    Forklifts – current monitoring in industrial vehicles

    Welding equipment – current control in welding applications

    General current monitoring – versatile industrial measurements

     

    Why Choose the CASR15-NP/SP1?

    World-Class Quality You Can Trust

    LEM is a global leader in current sensing. The CASR15-NP/SP1 complies with multiple international standards:

    UL 508 (UR mark)

    EN 50178 industrial standard

    CE mark (EMC Directive 89/336/EEC)

    IEC 61010-1 safety standard

    Manufactured with UL94-V0 rated materials

    5-Year Warranty for Peace of Mind

    FAQ
    Q
    What is the advantage of MacroQuest?
    A
    Our advantage is that we not only low prices, but we more suited to you.
    Our Keywords is
    New and original parts
    Fast Delivery
    Instock & available
    Short Leadtime
    30-Days returns
    ISO9001 Certification
    1 Year Warranty 

    Q: I want to work with MacroQuest because of high quality. But I found your price too high and out of line with the prevailing market level, how should I do?
    A: MacroQuest has been devoted to offer a best price to our customers,if you want to buy it at a cheapper price. Please contact us directly to see if we can negotiate  a cheaper price rate. Or, send us an email with your T/P.
    Simon Hsu
    simon@mymacroquest.com
    Alice Wang
    alice@mymacroquest.com

    Q: Can MacroQuest offer NET terms?
    A: Yes we can. Please contact with your sales manager for more information.

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    3.If you have a BOM list or want to email us directly, please contact:
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    simon@mymacroquest.com
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    alice@mymacroquest.com

    Q：Are all the parts new and original?
    -A:Yes, all parts are new and original checked by our quality control department.

    Q：How long is your warranty?
    -A:We offer a 1 year warranty for form fit and function for MacroQuest stock. 


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    Feb 18, 2026
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    We have done several orders and all come in prisitine condition as stated.
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