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Hot Products

HAH1BVWS/SP301,HAH1BVW S/SP301

HOT OFFER// Authorized Distributor
  • MacroQuest Part#HAH1BVWS/SP301
  • ManufacturerLEM
  • Standard Lead TimeNA
  • Part StatusActive
    • $26.36 - $41.86
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    100-219 Pieces $35.85
    >=220 Pieces $26.36
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    Description FAQ Review
    Description

    LEM HAH1BVW S/SP301 Open-Loop Hall Effect Current Sensor

     

    LEM HAH1BVW S/SP301 Product Overview

    The HAH1BVW S/SP301 is an open-loop Hall effect current sensor from LEM's HAH1BVW series, designed for electronic measurement of DC, AC, and pulsed currents in automotive high-power and low-voltage applications, with galvanic isolation between the primary (high-power) and secondary (electronic) circuits.

    The HAH1BVW series offers measurement ranges from ±200A to ±1200A in the same package, enabling flexible platform-based selection. This model features redundant/dual range capability, providing high-range and low-range independent outputs, suitable for automotive battery management systems with high safety and reliability requirements.

    The sensor features busbar mounting design with a mass of approximately 57g. It operates on a single +5V supply, outputs a ratiometric voltage signal, and has an operating temperature range of -40°C to +125°C, meeting automotive-grade harsh environment requirements.

     

    LEM HAH1BVW S/SP301 Key Technical Specifications

    Parameter

    Specification

    Model

    HAH1BVW S/SP301

    Series

    HAH1BVW

    Measurement Technology

    Open-loop Hall Effect

    Primary Signal

    AC + DC

    Supply Voltage

    4.5V ~ 5.5V (typical 5V, unipolar)

    Output Signal

    Ratiometric voltage output (instantaneous 2.5V ± 2V)

    Operating Temperature

    -40℃ ~ +125℃

    Mounting Type

    Busbar Mounting

    Case Material

    PBT GF30 (Polybutylene Terephthalate + 30% Glass Fiber Reinforced)

    Mass

    57g ± 5%

    Mounting Torque

    2.2 N·m ± 5%

    RoHS

    Compliant

    Application

    Automotive Battery Management Systems (BMS), High-Power Motor Control

     

    LEM HAH1BVW S/SP301 Key Advantages

    Redundant/Dual Range Output, High Safety: Built-in high-range and low-range independent output channels provide measurement redundancy, ideal for automotive safety-critical battery management systems

    Automotive-Grade Wide Temperature Design: -40°C to +125°C operating temperature range ensures stable operation under extreme environments

    Open-Loop Hall Technology, Non-Contact Measurement: No insertion loss, extremely low thermal offset drift and thermal sensitivity drift, stable measurement accuracy across the full temperature range

    High Accuracy and Excellent Linearity: Typical accuracy better than 1.25%, linearity better than ±1%

    Busbar Mounting Design, Compact Structure: Optimized for direct copper bar installation, easy to integrate into battery packs, inverters, and motor controllers

    Single +5V Supply: Seamlessly interfaces with automotive onboard power systems, simplifying vehicle electrical integration

    Fully Ratiometric Output: Output voltage precisely replicates the primary current variation profile, providing real, reliable current data to the vehicle controller

     

    LEM HAH1BVW S/SP301 Target Applications

    Automotive Battery Management Systems (BMS): Power battery charge/discharge current monitoring, SoC estimation

    Automotive Motor Control: EV traction motor, starter-generator current monitoring

    Inverter Systems: HEV/EV application current monitoring

     

    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
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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.
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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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    Review
    Queenie
    Feb 16, 2026
    Great quality,will continue to order.
    Billie
    Nov 06, 2025
    Happy cooperation!!
    Elwood
    Oct 11, 2025
    Very nice to work with Simon !
    Felicity
    Jul 11, 2025
    Industry 5 Star Company!
    Farah
    Jul 01, 2025
    Global Distributor Partner!
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