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Murata has launched the IRS-B series of dual and quad type surface mount pyro-electric infrared sensors. The company said that it believed they were not only the smallest PIR sensors in the world, but also the only surface mount devices available. The series are aimed at a broad range of energy saving applications in consumer appliances.
The series comprises three models, IRS-B210ST01, IRS-B340ST02 and IRS-B345ST03. Measuring just 4.7 x 4.7 x 2.4 mm, these extremely small devices offer high sensitivity and signal to noise ratio, high stability against temperature changes and a low power consumption. These cost effective sensors provide a cost effective method of waking up a consumer appliance, such as a television, photo frame or room lighting, from an energy saving standby mode to normal operation once human movement has been detected. The IRS-B345ST03 device also has the capability of detecting minor motion such as waving hand or head.
