Overview
Murata Manufacturing Co., Ltd. has expanded its lineup of magnetic sensors by introducing the MRES series, an analog output AMR sensor. The primary application will be as a rotary encoder for manufacturing equipment. Mass production started in July.
Details
An AMR sensor is a magnetic sensor that utilizes a magnetoresistance element. By installing a magnet on the rotational shaft of a motor, for example, the sensor is able to detect rotation or position change by proximity to the magnet.
Rotary encoders for manufacturing equipment require compact size and low power consumption. To meet this need, Murata has developed the analog output type MRES series by using a high resistance AMR element, thereby expanding its lineup of AMR sensors, which also includes the digital output type with built-in IC (magnetic switch)
Specifications: MRES301B (example)
| Item |
Value |
Condition |
| Power voltage |
5.0V |
|
| Resistance |
550kΩ Typ. |
Between Vcc-Gnd |
| Midpoint potential |
2500mV Typ. |
|
| Fluctuation at magnetic field application |
25mV Min. |
B=8mT |
External size
4. 0 x 4.0 x 0.7 mm
Magnetic field application direction and equivalent circuit
Output example
Application example
Product site URL
Murata Manufacturing Co., Ltd. is a worldwide leader in the design, manufacture and sale of ceramic-based passive electronic components & solutions, communication modules and power supply modules. Murata is committed to the development of advanced electronic materials and leading edge, multi-functional, high-density modules. The company has employees and manufacturing facilities throughout the world. For more information, visit Murata's website at www.murata.com