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Hot Products

HAH1BVWS/D11,HAH1BVW S/D11

HOT OFFER// Authorized Distributor
  • MacroQuest Part#HAH1BVWS/D11
  • 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/D11 Open-Loop Hall Effect Current Sensor

     

    LEM HAH1BVW S/D11 Product Overview

    The HAH1BVW S/D11 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 sensor utilizes open-loop Hall effect technology and busbar mounting design, with a mass of approximately 57g. It operates on a single +5V supply, outputs a fully ratiometric voltage signal (instantaneous 2.5V ± 2V), and has an operating temperature range of -40°C to +125°C, meeting automotive-grade harsh environment requirements.

    The HAH1BVW series is specifically optimized for automotive Battery Management Systems (BMS), offering multiple current measurement ranges in the same package for flexible platform-based selection. The "D11" suffix is a specific configuration version for this model. According to distributor information, this part is available through authorized distributors.

     

    LEM HAH1BVW S/D11 Key Technical Specifications

    Parameter

    Specification

    Model

    HAH1BVW S/D11

    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)

    Accuracy @ 25°C

    ±1.25%

    Accuracy @ -40~125°C

    ±2.25%

    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%

    Insulation Test Voltage

    2500 V AC / 1 minute

    Insulation Resistance

    ≥500 MΩ @ 500V DC / 60s

    RoHS

    Compliant

    Application

    Automotive Battery Management Systems (BMS)

    Part Status

    In-stock available

     

    LEM HAH1BVW S/D11 Key Advantages

    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: ±1.25% accuracy at 25°C, ±2.25% across full temperature range

    Good Linearity: Fully ratiometric output with output voltage proportional to supply voltage, accurately replicates primary current variation profile

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

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

    High Isolation Rating: 2500V AC insulation withstand voltage test ensures high-voltage safety

     

    Why Choose the HAH1BVW S/D11?

    Customer Pain Point

    HAH1BVW S/D11 Solution

    Automotive BMS requires high-precision current measurement

    ±1.25% accuracy at 25°C, ±2.25% across full range — meets BMS SoC estimation needs

    Wide temperature variations in automotive environments cause accuracy drift

    -40°C~+125°C wide temperature design, ultra-low thermal drift, stable across full range

    Limited installation space

    57g compact package, busbar mounting design

    Different power levels require different ranges

    HAH1BVW series offers multiple current measurement ranges in the same package for flexible platform-based selection

     

    LEM HAH1BVW S/D11 Target Applications

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

    Hybrid/Electric Vehicles: HEV/EV current monitoring

    High-Power Low-Voltage Automotive Applications: DC, AC, pulsed current electronic measurement

     

    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
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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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    Less
    Review
    Mack
    Feb 13, 2026
    Hope we can keep long business relationship.
    Berniece
    Jan 31, 2026
    Convenient and quick, thank you,,
    Rhiannon
    Dec 28, 2025
    Satisfied as always!
    Yvonne
    Dec 16, 2025
    Very satisfied, the quality is guaranteed.
    Lemuel
    Oct 03, 2025
    Very satisfied with the parts, will definetely order again.
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