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Hot Products

HO 250-PW-0100 , HO250-PW-0100

Second. Nominal Signal[Instantaneous:Other Pulse Density Modulation (PDM)]
  • MacroQuest Part#HO 250-PW-0100
  • ManufacturerLEM
  • Standard Lead TimeNA
  • Part StatusActive
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    Description FAQ Review
    Description

    LEM HO 250-PW-0100 HO-PW Series Open Loop Hall Effect Current Transducer

     

    LEM HO 250-PW-0100 Product Overview

    The HO 250-PW-0100 is an open-loop Hall effect current transducer from LEM's HO-PW Series, designed for the electronic measurement of DC, AC, and pulsed currents with galvanic isolation between the primary and secondary circuits. This PCB-mount transducer features a 15 x 8 mm aperture for primary conductor installation and is optimized for unipolar +5 V supply operation. The PW variant provides a ratiometric voltage output with dedicated overcurrent detection on a separate pin.

    Rated for 250 A nominal with a measuring range of ±625 A (2.5 × IPN), it outputs a ratiometric analog voltage of 0 to 5 V with ±1.5% accuracy and ±0.5% linearity. Frequency bandwidth is DC to 20 kHz with a response time of 2.5 µs. Supply voltage range is 4.5 V to 5.5 V with a maximum current consumption of 31 mA. Operating temperature ranges from -40°C to +105°C. The device is bidirectional and features 8 mm creepage and clearance distances with CTI 600. Package dimensions are 22 x 43 x 30 mm. The product is Active and carries a 5-year LEM warranty.

     

    LEM HO 250-PW-0100 Key Specifications

    Parameter

    Value

    Rated current (IPN)

    250 A

    Measuring range (IPM)

    ±625 A

    Output signal

    0 to 5 V (ratiometric voltage)

    Supply voltage (VC)

    4.5 V to 5.5 V

    Accuracy

    ±1.5 %

    Linearity (εL)

    ±0.5 %

    Response time (tr)

    2.5 µs

    Bandwidth (BW)

    DC to 20 kHz

    Creepage/Clearance

    8 / 8 mm (CTI 600)

    Aperture

    15 x 8 mm

    Operating temp (TA)

    -40°C to +105°C

    Mounting

    PCB (through-hole)

    Technology

    Open-loop Hall effect

     

    LEM HO 250-PW-0100 Key Advantages

    The HO 250-PW-0100 employs open-loop Hall effect technology, delivering ±1.5% accuracy and ±0.5% linearity while providing galvanic isolation between primary and secondary circuits. The ±625 A measuring range provides significant headroom for overload conditions (2.5 × IPN). The 20 kHz bandwidth and 2.5 µs response time capture dynamic current signals in drive and power conversion applications.

    A key feature is the dedicated overcurrent detection output on a separate pin, enabling fast system-level protection without additional circuitry. The single +5 V supply simplifies integration into low-voltage digital systems. The compact PCB-mount design with 15 x 8 mm aperture offers low power consumption (31 mA maximum), high immunity to external interference, and no insertion losses. The device is factory calibrated and features 8 mm creepage/clearance for reinforced insulation.

     

    LEM HO 250-PW-0100 Typical Applications

    AC variable speed drives and servo motor drives
    Static converters for DC motor drives
    Battery supplied applications
    Uninterruptible Power Supplies (UPS)
    Switched Mode Power Supplies (SMPS)
    Power supplies for welding applications
    Combiner box and MPPT systems
    Renewable energy systems

     

    Why Choose the LEM HO 250-PW-0100?

    The HO 250-PW-0100 combines a 250 A rated current and ±625 A measuring range with 0 to 5 V ratiometric output in a compact PCB-mount package with a single +5 V supply. Manufactured by LEM, it delivers stable, accurate, and safe current measurement for industrial applications requiring high-speed current sensing. The open-loop Hall effect design offers a cost-effective solution with overcurrent detection, excellent interference immunity, and small footprint. The wide -40°C to +105°C operating temperature range and reinforced insulation ensure reliable performance in demanding environments. The product is Active with a 5-year LEM warranty.

     

    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

    Q: Can MacroQuest offer NET terms?
    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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    Cecelia
    Feb 05, 2026
    Smooth Transaction
    Olivia
    Jan 31, 2026
    Good and reliable company ,Elsa is honest
    Farrar
    Oct 14, 2025
    Thank you Elsa for everything that you've done, very perfect and smoothly. I like the way that we cooperate with each other. Especially the shippment arranged very fast. Good Job!
    Xenia
    Jul 05, 2025
    Many Thanks,Will place next order later !!!!!
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    Aug 20, 2024
    The delivery is very fast, the quality of the goods is also quite good, good, good
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