Aimed at a broad range of consumer electronics devices, these cost effective sensors are ideally suited to open / close detection applications for mobile phones and note book PCs in addition to use in consumer white goods, industrial and security equipment.
The AS-M series provides horizontal sensing across a wide detection area; this allows a more flexible approach to sensor and magnet mounting location compared to a Hall effect IC. Within the series, the AS-M15SAH-R and AS-M15KAH-R sensors feature a narrow range of sensitivity, from 0.5 to 1.6mT that suit high accuracy applications. The AS-M15SA-R and AS-M15KA-R parts have a wide sensitivity range, from 0.5 to 2.2mT and are aimed at lower cost designs.
The AS-V series provides vertical magnetic field detection, and is designed as a more cost effective replacement for Hall IC designs.
Both the AS-M series and AS-V series have the same land compatibility as SOT23 and SON4, and are suitable for reflow soldering.
Murata expands range of AMR sensors to include horizontal and vertical sensing
Murata has announced the launch of the AS-M and AS-V series of anisotropic magneto resistance (AMR) sensors. This detection technique provides a non-contact magnetic sensor of high sensitivity for use in a relatively low magnetic field. These extremely small devices, the smallest measuring just 1.2 x 1.2 x 0.37 mm, can detect a magnetic field in either a horizontal or vertical direction. Compared to traditional magnetic switch components, such as a reed switch or Hall effect IC, AMR sensors have higher detection sensitivity, are more robust and offer a wider detection area.