Sonitron flat loudspeakers will surprise you by a clean sound

Several flat loudspeakers from Sonitron prove that a piezo loudspeaker is capable of having a balanced frequency response.

This is an archive article published 09/14/2016. Some information may no longer be up to date and in line with the current state. Please contact us in case of interest.

You most likely already know something about Belgian company Sonitron and its top class products from our articles and from our offer in this segment.

Probably majority of designers associate piezo components with various buzzers, sirens and similar acoustic “indicators”, but not that much with a reproduction of speech or music.

It´s quite logical as piezo elements tend to have a significant maximum on a resonant frequency. Thanks to that, they act as very efficient electro-acoustic components suitable right for a sound signalization. Less known is the fact, that a significant maximum in a narrow frequency band and also the highest efficiency is usually reached also thanks to mounting of piezo element in nodes (nodal mounting) as can be seen on page 32 of the document about Sonitron piezo components. However, if we want to transfer speech or music, it´s obviously ideal to have a wide frequency response and without significant peaks.

For this purpose, it´s best to mount (at production) the piezo element on edges (p.33 in above mentioned document). In that case the whole element oscillates in a phase and a resonant frequency is perceptibly lower and also less significant. Of course, piezo element mounting is only one of several factors affecting the final result. Materials, production process and overall know-how are of a key importance. From this point of view, almost 40-year experience of company Sonitron are reflected in features of their piezo components and piezo loudspeakers (SPS, SCS).

Especially SPS series has truly exceptionally balanced frequency characteristics and perhaps the biggest advantage of these loudspeakers is that they are extremely slim, as their height including mounting is only 1-2mm (depending on a type).

Many Sonitron components are available directly from our stock. Detailed description of particular components can be found in files attached to given components as well as in the Sonitron catalogue. Documents Piezo Speaker technology and Mounting instructions will also help you use piezo components in practice. Sonitron also produces ready-to-use small modules of audio amplifiers suitable for piezo loudspeakers.

In case of interest even in non-stock items, please contact us at sales@soselectronic.com.

Advantages/ Features of Sonitron flat loudspeakers:

  • exceptionally balanced frequency response
  • only 1-2mm construction height (depending on type)
  • don´t generate magnetic field
  • usable even in harsh environment (water, dust, vibrations,...)
  • combined usage is possible (as a loudspeaker and also as a microphone)
  • low weight
  • low distortion
  • high impedance (capacitive load)

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Additional products


SPS-2220-03 SONITRON  
SPS-2220-03

Piezoceramic Speaker 700Hz-20kHz 2,16kOhm 85dB

Wideband Speakers

Ord. No.: 64043
Manufacturer: SONITRON
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SPS-4640-03-C1 SONITRON  
SPS-4640-03-C1

Piezoceramic Speaker 400Hz-20kHz 680Ohm 83dB

Wideband Speakers

Ord. No.: 64046
Manufacturer: SONITRON
No longer available

SPS-8770-03-C1 SONITRON  
SPS-8770-03-C1

Piezoceramic Speaker 200Hz-20kHz 266Ohm 84dB

Wideband Speakers

Ord. No.: 64047
Manufacturer: SONITRON
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SCS-17-P10 SONITRON  
SCS-17-P10

Piezoceramic Speaker 1500-8000Hz Q18,6x9,7mm

Wideband Speakers

Ord. No.: 64049
Manufacturer: SONITRON
5 pcs+
20 pcs+
100 pcs+
3,30 €
3,05 €
2,83 €
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SCS-17-S SONITRON  
SCS-17-S

Piezoceramic Speaker SMD 1500-8000Hz Q18,6x9,7mm

Wideband Speakers

Ord. No.: 64050
Manufacturer: SONITRON
5 pcs+
20 pcs+
80 pcs+
4,01 €
3,71 €
3,47 €
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SCS-24-P10 SONITRON  
SCS-24-P10

Piezoceramic Speaker 1000-8000Hz Q25,1x9,7mm

Wideband Speakers

Ord. No.: 64051
Manufacturer: SONITRON
5 pcs+
20 pcs+
100 pcs+
3,66 €
3,38 €
3,07 €
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SCS-24-S SONITRON  
SCS-24-S

Piezoceramic Speaker SMD 1000-8000Hz Q25,1x9,7mm

Wideband Speakers

Ord. No.: 64052
Manufacturer: SONITRON
5 pcs+
20 pcs+
80 pcs+
4,66 €
4,25 €
3,95 €
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SCS-32-P10 SONITRON  
SCS-32-P10

Piezoceramic Speaker 500-8000Hz Q33,5x9,7mm

Wideband Speakers

Ord. No.: 64053
Manufacturer: SONITRON
5 pcs+
20 pcs+
100 pcs+
3,50 €
3,24 €
2,94 €
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SCS-32-S SONITRON  
SCS-32-S

Piezoceramic Speaker SMD 500-8000Hz Q33,5x9,7mm

Wideband Speakers

Ord. No.: 64054
Manufacturer: SONITRON
5 pcs+
10 pcs+
60 pcs+
5,65 €
5,38 €
4,96 €
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SPS-29-T00 SONITRON  
SPS-29-T00

Piezoceramic Speaker 5-60VDC 1kHz-20kHz 86dB

Wideband Speakers

Ord. No.: 158767
Manufacturer: SONITRON
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SPS-29-T00-FI SONITRON  
SPS-29-T00-FI

Piezoceramic Speaker 5-60VDC 1kHz-20kHz 86dB

Wideband Speakers

Ord. No.: 158769
Manufacturer: SONITRON
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SPS-29-T00-FS SONITRON  
SPS-29-T00-FS

Piezoceramic Speaker 5-60VDC 1kHz-20kHz 86dB

Wideband Speakers

Ord. No.: 158772
Manufacturer: SONITRON
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SPS-3530-03-C1 SONITRON  
SPS-3530-03-C1

Piezoceramic Speaker 700Hz-20kHz 603Ohm 81dB

Wideband Speakers

Ord. No.: 64044
Manufacturer: SONITRON
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SPS-3530-03-C2 SONITRON  
SPS-3530-03-C2

Piezoceramic Speaker 5-60VDC 0,7-20kHz 81dB

Wideband Speakers

Ord. No.: 158762
Manufacturer: SONITRON
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SPS-41-T00 SONITRON  
SPS-41-T00

Piezoceramic Speaker 450Hz-20kHz 5-60Vpp 90dB

Wideband Speakers

Ord. No.: 150777
Manufacturer: SONITRON
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SPS-41-T00-FI SONITRON  
SPS-41-T00-FI

Piezoceramic Speaker 5-60VDC 0,45-20kHz 90dB

Wideband Speakers

Ord. No.: 158770
Manufacturer: SONITRON
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SPS-41-T00-FS SONITRON  
SPS-41-T00-FS

Piezoceramic Speaker 5-60VDC 0,45-20kHz 90dB

Wideband Speakers

Ord. No.: 158773
Manufacturer: SONITRON
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SPS-4640-03-C2 SONITRON  
SPS-4640-03-C2

Piezoceramic Speaker 5-60VDC 0,4-20kHz 83dB

Wideband Speakers

Ord. No.: 158763
Manufacturer: SONITRON
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SPS-53-T00 SONITRON  
SPS-53-T00

Piezoceramic Speaker 5-60VDC 0,3-20kHz 93dB

Wideband Speakers

Ord. No.: 158768
Manufacturer: SONITRON
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SPS-53-T00-FI SONITRON  
SPS-53-T00-FI

Piezoceramic Speaker 5-60VDC 0,3-20kHz 93dB

Wideband Speakers

Ord. No.: 158771
Manufacturer: SONITRON
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SPS-53-T00-FS SONITRON  
SPS-53-T00-FS

Piezoceramic Speaker 5-60VDC 0,3-20kHz 93dB

Wideband Speakers

Ord. No.: 158774
Manufacturer: SONITRON
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SPS-6555-03-C1 SONITRON  
SPS-6555-03-C1

Piezoceramic Speaker 5-60VDC 0,3-20kHz 83dB

Wideband Speakers

Ord. No.: 158764
Manufacturer: SONITRON
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SPS-6555-03-C2 SONITRON  
SPS-6555-03-C2

Piezoceramic Speaker 5-60VDC 0,3-20kHz 83dB

Wideband Speakers

Ord. No.: 158765
Manufacturer: SONITRON
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SPS-68-T00 SONITRON  
SPS-68-T00

Piezoceramic Speaker 250Hz-20kHz 5-60Vpp 93dB

Wideband Speakers

Ord. No.: 150778
Manufacturer: SONITRON
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SPS-8770-03-C2 SONITRON  
SPS-8770-03-C2

Piezoceramic Speaker 5-60VDC 0,2-20kHz 84dB

Wideband Speakers

Ord. No.: 158766
Manufacturer: SONITRON
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