Diodes Incorporated — Analog and discrete power solutions

ZMZ20M (Obsolete)

Inactive Datasheet Archive

Contact Sales

Log in or register to manage email notifications about changes to datasheets or PCNs for this part.

Description

The ZMZ20M is an extremely sensitive magnetic field sensor in a 4 pin E-line package employing the magneto-resistive effects of thin film Permalloy. It allows the measurement of magnetic fields or the detection of metallic parts. The sensor consists of a chip covered with Permalloy stripes which form a Wheatstone bridge, whose output voltage is proportional to the magnetic field component Hy.Aperpendicular field Hx is necessary to suppress the hysteresis and this is provided by an internal permanent magnet.

Feature(s)

  • Output voltage proportional to magnetic field Hy
  • Magnetic fields vertical to the chip level are not effective
  • Application(s)

  • Linear position sensors for process control, door interlocks, proximity detectors, machine tool sensing
  • Scalar measurement for compassing
  • Automotive - door switches, engine position and speed sensing
  • Metering of fluids by sensing rotation of impeller
  • Traffic counting & vehicle-type sensing
  • Measurement of current in a conductor without connection
  • Product Specifications

    Product Parameters

    Angular Accuracy -
    HY or HROT -
    Internal Magnet Yes
    Maximum Offset ±1.5
    Maximum Supply Voltage (V) 12
    Number of Sensors 1
    Operating Ambient Temperature (°C) -40 to 125
    Sensitivity (mv/V) 5.5/(kA/m)
    Typical Bridge Resistance 1.7
    Typical Output Voltage 18

    Related Content

    Packages

    Technical Documents

    Recommended Soldering Techniques

    TN1.pdf