Murata Manufacturing Co., Ltd.

24 February 2012

Murata launches ultra low-profile surface mount 2.4 kHz piezo sounders

Murata today announced the expansion of its PKLCS family with two new 2.4 kHz SMD piezoelectric sounders aimed at white goods, portable, industrial, and automotive applications. Both the consumer part PKLCS1212E2400-R1 and the automotive/industrial part PKLCS1212E24A0-R1 are available in low profile surface mount packages. They have a 5dB increase in sound pressure level compared to previous Murata devices, and are fully reflow solder compatible. They are ideally suited for applications that need to minimize the use of leaded components or have all components be low profile.

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9 December 2011

World’s smallest and low-profile high pressure air pump with piezoelectric technology

Murata today announced the MZB1001 microblower, a miniature piezoelectric air pump designed for a wide range of household consumer products. Measuring just 20 x 20 x 1.85 mm (excluding nozzle), the MZB1001 microblower is believed to be the smallest air pump in the market. Using a piezoelectric diaphragm, which vibrates up and down when a sine wave voltage is applied, the vibrations force air into the microblower and out through a nozzle on the top of the device. The microblower can produce typical airflow rates of up to 0.8 litres per minute and typical air pressure up to 1.5 kPa when driven by a 15 Vp-p 25 kHz signal. The piezoelectric diaphragm has been optimized for operation above the normal audible range and is typically driven by a 24 – 25 kHz signal.

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11 August 2009

Piezo sound components offer low profile, low current solution for automotive and consumer applications

Fleet, UK: Murata's piezo sound components are available in low-profile SMD packaging for automotive and consumer electronics. Compared to magnetic/dynamic sound components, piezo sounders and buzzers consume very little current, are lightweight and reduce the amount of components needed in the drive circuit as they can be driven directly from an IC. There is no magnetic noise interference from piezo parts as the sound component is based on a piezoelectric ceramic diaphragm. The RoHS compliant parts are high impedance (1 to 5kOhm) and are available in SMD packages to help keep assembly costs low.

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