Surface mount ultrasonic transducer

March 12, 2014 // By Graham Prophet
Murata has developed a surface-mount device (SMD)-type ultrasonic transducer; in an ultra low profile package measuring 5.2 x 5.2 mm and 1.15 mm thick, the MA40H1S-R series is capable of delivering up to 100 dB sound pressure at 40 kHz.

Operating voltage is 6 Vp-p and the transducer has a -6dB full angle beam of 80 degrees. Through the use of a proprietary structural design, including the ceramic element, Murata Manufacturing has designed what it believes to be the world’s first surface-mount device (SMD)-type ultrasonic transducer. Since it is a surface-mount device (SMD), the new device requires minimal mounting space, and it enables improved functionality for distance measurement and position detection through the use of ultrasonic waves.

Typical applications include distance measurement, position detection and 3D gesture detection in portable equipment.

Murata Europe; www.murata.eu