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Hot Products

CTSR1-TP/SP15，CTSR 1-TP/SP15

HOT OFFER// Authorized Distributor
  • MacroQuest Part#CTSR1-TP/SP15
  • ManufacturerLEM
  • Standard Lead TimeNA
  • Part StatusActive
    • $31.42 - $46.82
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    1-9 Pieces $46.82
    10-99 Pieces $42.85
    >=100 Pieces $31.42
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    Description FAQ Review
    Description

    CTSR 1-TP/SP15 Board-Mount Current Sensor

     

    CTSR1-TP/SP15 Precision Current Sensing – Give Your Equipment the “Sense of Flow”

    Deep inside every precision circuit board, the flow of current is like the breath of your device – smooth under normal conditions, but potentially risky when fluctuations occur. The CTSR 1-TP/SP15 is a closed-loop board-mount current sensor from LEM, designed specifically for accurate measurement of low milliampere-range currents. It makes no sound, yet it converts tiny current changes into clear voltage signals, acting as the most reliable “current stethoscope” for your equipment.

     

    CTSR1-TP/SP15 Key Performance Specifications

    Parameter

    Value

    Rated current (Iₚₙ)

    1 A

    Measuring range

    0 ~ 1.7 A

    Output signal

    Voltage (2.5 V ± 1.2 V)

    Sensitivity

    1.2 V/A

    Frequency bandwidth

    DC ~ 9.5 kHz

    Linearity

    ±0.5%

    Accuracy

    ±1.5%

    Response time

    50 µs

    Supply voltage

    4.75 V ~ 5.25 V (single +5 V)

    Maximum supply current

    21.6 mA

    Operating temperature

    –40 °C to +105 °C

    Mounting type

    PCB board-mount

     

    Why Choose the CTSR 1-TP/SP15?

    Closed-Loop Fluxgate Technology for Superior Accuracy

    Built on LEM’s mature closed-loop fluxgate technology, the CTSR 1-TP/SP15 delivers high-precision measurement of both AC and DC currents. Compared to open-loop sensors, the closed-loop architecture offers lower temperature drift and superior long-term stability, ensuring outstanding performance even in harsh environments.

    Micro-Amp Sensitivity – Capture Every Subtle Change

    With a rated current of 1 A and a measuring range up to 1.7 A, this sensor is ideally suited for precision monitoring of small currents. Whether it is a slight variation in standby current or a minor fluctuation in load current, it is accurately captured and translated into a clean voltage output.

    Blazing-Fast Response – Safeguard Your Equipment

    A response time of just 50 µs means that the CTSR 1-TP/SP15 can react almost instantaneously when current anomalies occur. In timecritical applications such as overcurrent protection and fault detection, those 50 µs can be the crucial margin that prevents equipment damage.

    Wide-Temperature Robustness

    With an operating range from –40 °C to +105 °C, the sensor confidently handles challenges from extreme cold outdoors to high-temperature industrial environments. Whether in freezing northern winters or humid southern workshops, the CTSR 1-TP/SP15 delivers consistent, reliable performance.

    Single-Supply Simplicity

    It operates from a single +5 V supply with a maximum current draw of only 21.6 mA. This straightforward power requirement greatly simplifies system integration, allowing engineers to focus on core functionality.

     

    CTSR1-TP/SP15 Typical Applications

    Industrial control and automation equipment – real-time current monitoring for motor drives and power supplies

    Renewable energy systems – current feedback in wind turbine converters and photovoltaic inverters

    Electric vehicle charging modules – precise charging current monitoring for safety

    Medical device power systems – current protection for precision equipment such as MRI and imaging systems

    Smart home and wearables – compact size fits smart dimming, health monitoring, and other innovative designs

    Laboratory and high-precision instruments – reliable current measurement for research prototypes and test gear

     

     

    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
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    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

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    A: Yes we can. Please contact with your sales manager for more information.

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    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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    Inka
    Apr 09, 2026
    Solid and Quick
    Deirdre
    Feb 15, 2026
    The packaging is very careful, thank you very much.
    Elva
    Nov 15, 2025
    Good service good quality
    Lester
    Sep 28, 2025
    great Company
    Valerie
    Sep 26, 2025
    Very professional and parts always come new & original.
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