Piezoelectric Speaker is waterproof to IPX5/IPX7.August 24, 2010 -
Measuring 19.5 x 14.1 x 0.9 mm, Model VSLBG1914E1400-T0 has rectangular shape that minimizes dead-space in designs. Speaker features average sound pressure level of 92.0 ±3.0 dB with resonant frequency of 1,400 Hz ±20%. To prevent water penetration, rubber film is incorporated into speaker itself, leaving output sound holes open. Since no magnets are used, there is no possibility of malfunctions caused by iron sand or electromagnetic effects on magnetic sensors.
(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)
Original Press release
Murata Power Solutions, Inc.
11 Cabot Blvd.
Mansfield, MA, 02048
USA
Murata Introduces World's First Ultra-Thin Waterproof Piezoelectric Speaker
Hoofddorp, Netherlands: Featuring a thickness of only 0.9mm, Murata has launched the world's first ultra-thin waterproof piezoelectric speaker. Based on Murata's proprietary piezoelectric technology, the speaker is waterproof to IPX5/IPX7. The speaker measures 19.5 by 14.1 by 0.9mm; its rectangular shape reduces dead-space from designs while its ultra-thin dimensions contribute to greater freedom in equipment design.
Of the 50 new Japanese mobile phone models announced for 2010, almost one in four will be waterproof mobile phones, one of numerous indicators of a growing trend towards the waterproofing of mobile equipment. Given there are so many different areas that require waterproofing, there were many technical challenges and cost issues to overcome when developing the waterproof speaker. Conventional methods of waterproofing dynamic speakers used waterproof sheets which covered the output sound holes, reducing sound quality. Murata's approach incorporates a rubber film into the speaker itself, leaving the output sound holes open. The width of the metal frame housing the speaker has been increased to improve the seal between the metal frame and the chassis, preventing water penetration.
The new waterproof speaker has been designated part number VSLBG1914E1400-T0. Its average sound pressure level (SPL) is 92.0±3.0dB (1500Hz/2000Hz/2500Hz/3000Hz average) with a resonant frequency of 1400Hz±20%. Since no magnets are used, there is no possibility of malfunctions caused by iron sand, or electromagnetic effects on magnetic sensors.
For further information and reader enquiries:
Aya Tonooka, Murata Electronics (UK) Ltd., Oak House, Ancells Road, Ancells Business Park, Fleet, Hampshire GU51 2QW , United Kingdom
Tel: +44 (0) 1252 811666
Fax: +44 (0) 1252 811777
E-mail: ayatonooka@murata.co.uk
Web: www.murata.eu
About Murata
Murata is a leading manufacturer of electronic components, modules, and devices. The complete range of this Ceramics Technology house includes ceramic capacitors, resistors/thermistors, inductors/chokes, ceramic resonators, buzzers, sensors and EMI suppression filters. Whilst the company gets 40% of its revenue from its ceramic capacitor products, it is also the world leader in Bluetooth & WiFi Modules, and a key manufacturer of power supplies. Murata also designs and manufactures mobile handset antenna families, piezoelectric actuators for fuel injection systems, short focal length ceramic lenses and speaker products.
Established in 1944, Murata is headquartered in Japan and has European offices in Germany, the Netherlands, the UK, Switzerland, Italy, France, Spain, Denmark, Sweden, Finland and Hungary.
For more information on Murata, please visit: www.murata.eu
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