Murata Electronics MRMS AMR Sensors

Murata MRMS AMR Sensors detect a horizontal magnetic field, allowing a single magnet to support multiple sensing positions. Murata AMR Sensors are used together with a magnet, utilizing the magnetic resistance rate change being affected by the strength of the external magnetic field. These AMR sensors are independent of magnetic polarity, meaning that they detect the strong positive magnetic field and the strong negative magnetic field in the same manner. MRMS AMR Sensors have a wider detection area than Hall ICs and are not mechanical components like reed switches. These design elements allow added flexibility and smaller package sizes.

Features

  • Sensing device utilizing the magnetic resistance rate change being affected by the strength of the external magnetic field
  • Independent of magnetic polarity
    • Detects the strong positive magnetic field and the strong negative magnetic field in the same manner
  • Wider detection area compared to Hall IC
    • Has much more design flexibility in terms of mounting location

Specifications

  • Sensitivity
    • 0.5mT minimum to 2.5mT maximum (MRMS201A-001, MRMS205A-001, and MRMS581P)
    • 0.8mT minimum to 2.0mT maximum (MRMS501A-001 and MRMS511X-001)
    • 0.5mT minimum to 4mT maximum (MRMS591P)
  • 1.6V up to 5.5V supply voltage
  • Type of magnetic switch
    • Open-close switch
    • Position detection (MRMS511X-001)

Block Diagram

Block Diagram - Murata Electronics MRMS AMR Sensors

Difference from Hall IC

Chart - Murata Electronics MRMS AMR Sensors

Sensor & Magnetic Field

Infographic - Murata Electronics MRMS AMR Sensors

Videos

View Results ( 8 ) Page
Part Number Datasheet Operating Supply Voltage Maximum Output Current Operating Supply Current Mounting Style
MRMS511X-001 MRMS511X-001 Datasheet 1.8 V 3 uA SMD/SMT
MRMS591P MRMS591P Datasheet 3 V 18 uA PCB Mount
MRMS791B MRMS791B Datasheet 3 V 2.2 mA PCB Mount
MRMS205A-001 MRMS205A-001 Datasheet 3 V to 5.5 V 8 uA SMD/SMT
MRMS201A-001 MRMS201A-001 Datasheet 3 V 5 uA SMD/SMT
MRMS501A-001 MRMS501A-001 Datasheet 1.6 V to 3.5 V 3 uA SMD/SMT
MRMS541E MRMS541E Datasheet 3 V 160 uA SMD/SMT
MRMS543E MRMS543E Datasheet 1.8 V 16 uA SMD/SMT
Published: 2020-04-28 | Updated: 2024-08-16