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HSW Series | High Precision Current Sensor for xEV BMS | LEM

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HSW Series | High Precision Current Sensor for xEV BMS | LEM Skip to main content EN JP CN EN JP CN Check Stock Career Investors Contact Products Applications Support About Lem Search Current Sensors 45-90 A 90-180 A 187.5-375 A 375-750 A 750-1500 A 1500-3000 A 3000-6000 A 6000-12000 A 12000-24000 A Other value All Current Sensors Voltage Sensors 25-50 V 50-100 V 100-200 V 200-400 V 400-800 V 800-1600 V 1600-3200 V 3200-6400 V All Voltage Sensors Integrated Current Sensors GO Series HMSR Series GXS Series GXN Series GXM Series All Integrated Current Sensors Rogowski Coil ART Series ARU Series ARH Series INTEGRATORS FOR ROGOWSKI COILS Energy Meters DCES DCBM 400 & 600 DCBM 100 TEMA4G EM4T II All Energy Meters Automotive Battery Management EV Chargers Automotive Motor Control Smart Grid Welding Automation Drives High Precision Power Supplies Renewable Energies Trackside Traction After Sales & RMA Merchandize authorization RMA Categories All after sales and RMA Downloads Application Notes Brochures Certificates All Downloads Technical FAQs General All Technical FAQs Company Information History Board of Directors & Committees Organization Values Compliance Sustainability Our locations All Company Information Quality & Environment Quality Environment All Quality & Environment Our partners Become a LEM Supplier Our general terms & conditions Our distributors News & Events All News & Events What do you need ? Product information Check Stock Global information GO EN JP CN EN JP CN Products Current Sensors Voltage Sensors Integrated Current Sensors Rogowski Coil Energy Meters Applications Automotive Battery Management EV Chargers Automotive Motor Control Smart Grid Welding Automation Drives High Precision Power Supplies Renewable Energies Trackside Traction Support After sales and RMA Downloads Technical FAQs About Lem Company Information Quality & Environment Suppliers News & Events Check Stock Career Investors Contact What do you need ? Product information Check Stock Global information GO Home lem_current_page : HSW Series HSW Series xEV Battery Management System (BMS) High precision current sensor

Order now Distributor List Contact Sales HSW - Battery Management System Sensors The HSW Series excels in accurately measuring DC and AC currents in high-power, high-voltage automotive environments, featuring robust galvanic isolation between the primary (high power) and secondary (electronic) circuits.

With the HSW current transducers, you have the flexibility to select various current measuring ranges within the same housing, ranging from ±50 to ±400 A, or opt for dual output for redundancy in measurement.

HSW sensors designed for battery management systems (BMS) boast compact dimensions and outstanding performance. 

Compared to competitors, HSW sensors represent the pinnacle of LEM Hall ASIC design, offering exceptional precision, minimal offset, and non-invasive (isolated and lossless) measurement capabilities. They are easy to install on busbars using clipping fixations and are automotive qualified, ensuring reliability and durability in automotive applications.

HSW sensors operate as open-loop transducers, leveraging a Hall effect integrated circuit tailored for demanding high-power, high-voltage automotive environments.

HSW – Features and benefits FeaturesSingle / Dual Hall Effect open loop sensor with single coreIndependent dual range:  High Range channel up to: +/- 1000AHigh compactness with sensorLow voltage applicationUnipolar +5 V DC power supplyPrimary current measuring range up to ±200 AOperating temperature range: −40 °C Output voltage: full ratio-metric (in sensitivity and offset)Over / Under Current detection Reverse supply voltage protectionGround open circuitBenefitsVery high accuracy Guarantee for low range measurementsGood linearityVery low magnetic offset Low thermal offset driftLow thermal sensitivity driftTypical applicationsThe HSW sensor series is ideally suited for a range of automotive applications, including:

Battery Management Systems (BMS)Redundant measurement with 2 independent channels Battery pack monitoringHybrid vehiclesEV and utility vehicles LEM HSW – Download & Technical Characteristic Product

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DocumentPrimary nominal RMS currentSupply VoltageOp. TemperatureHSW S01

Datasheet
3D200 A5 to 5-40 to 105 °C HSW Sensors – ASK FOR SAMPLES / QUOTATIONS Looking to receive samples or a quotation? Please click on the contact button below and provide us with the information you need on this product series. Our sales team will get back to you shortly.

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