Piezo acoustic components are more and more used in small portable equipment and as a critical alerting device. Reliability must be very high in the most difficult environmental circumstances, such as extreme and varying temperatures, vibrations, shocks, dust conditions, humid environment, etc. The SMAC buzzers and transducers, manufactured with over 30 years of experience in the field of piezo acoustic technology, are very stable sound components with a lifetime of more than 1000 hours in continuous use. In these small dimensions, the SMAC buzzers and transducers are actually the best available piezo alarms for life-supporting systems.Download sheet Download 3D model
|Alarms||Trucks & automobiles||Signaling & Process control equipment|
|Life support systems||Gas detectors|
|Model||Function||Sound pressure level*|
(dB(A) (+/- 2Hz)
|Operating Voltage (Vdc)||Operating*** DC current (mA)|
|SMAC – 25||continuous||93.5||3350||5 – 16 Vdc||9.7|
|SMACI – 25||intermittent*||93.5||3350||5 – 16 Vdc||9.7|
|SMAC – 25L (under construction)||continuous||100||3350||5 – 35 Vdc||17|
|SMACT – 25||transducer||see graph||see graph||–||–|
(+/- 30%) nF)
|SMACT – 25||20nF||0 to 30|
|Operating temperature||-40°C to +85°C|
|Storage temperature||-40°C to +85°C|
|Expected Lifetime||>1000 hours @12Vdc @21°C (free air) mounted on print|
|Terminals||pins ( tinned brass)|
|Case material||PBL (UL rating:94 HB)|
|Weight||7.8 – 8.5 g|
**All measurements are made in free air @21°C @30cm @12Vdc.
The test buzzer is soldered on a PCB board with dimensions of 24cm * 11cm
Dimensions (All dimensions are in mm)
|MC||SMAC-25-P15-MC||Acryl coating: The protective coating gives a complementary assurance against smog All Smac series buzzers are perfectly waterproof (IP67) without the mentioned coating.|
|Wash Tab||SMAC-25-P17.5 + Wash Tab|
Recommended for the automatic washing production process. The Wash Tab is upon the sound-emitting hole, avoiding liquid penetration into the cavity.
TO BE REMOVED AFTER the washing process for good sound output!!!
|FP21||SMACI-25-P15-FP||Acoustic stabilization Foam Patch, easy to stick. For: SMAC(I)-25-P15, SMAC(I)-25-P17.5|
!! Other options can be made based on your requirements, please contact our support team at firstname.lastname@example.org
List of available products
Wondering if the Sonitron piezo audio components are IP67/68 resistant?
Watch this new video where we have conducted a test to show you whether they meet this value?
Find out more > https://www.youtube.com/watch?v=AMGVxK2Aax0
Discover the wide range of available product options and ensure the long lasting functionality of our Piezo components.
more information –> https://www.sonitron.be/soundcomponentlifetime/