2011-10-24  Passive Components   MURATA

MURATA is extending its range of AMR sensors to versions for detecting horizontal and vertical magnetic fields.

MURATA has announced the launch of the AS-M and AS-V series consisting of AMR sensors (anisotropic magneto resistance sensors). This technology enables the production of non-contact, highly sensitive magnetic sensors for use with relatively weak magnetic fields. The extremely small components (the smallest measures just 1.2mm x 1.2mm x 0.37mm) can detect magnetic fields in either a horizontal or vertical direction. By comparison with conventional magnetically tripped switch blocks such as Reed switches or Hall-effect ICs, AMR sensors offer greater sensitivity, more robustness and a larger detection surface area.

The cost-effective sensors are designed for a wide range of consumer electronic devices and are ideal for open/closed detection in mobile phones and notebooks as well as white goods, industrial equipment and safety equipment.

The AS-M series is designed for horizontal detection over a wide detection surface area, which provides for more flexible fastening features of the sensor and magnet compared to Hall-effect ICs. Within the series the AS-M15SAH-R and AS-M15KAH-R sensors feature a narrow sensitivity range from 0.5mT to 1.6mT which makes them ideal for high accuracy requirements. The AS-M15SA-R and AS-M15KA-R versions, on the other hand, have a wide sensitivity range from 0.5mT to 2.2mT and are designed for lower cost designs.

The AS-V series is designed for the detection of vertical magnetic fields and are a more cost-effective product than Hall-effect ICs.

Their connection surfaces make the AS-M and AS-V series compatible with housing designs SOT23 and SON4 and suitable for reflow soldering.

Please do not hesitate to contact us if you would like some free samples.


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