Sonitron’s SMAT series of piezoelectric audio transducers are specifically developed to meet requirements such as loud sound pressure level, mounting methods, connection possibilities and dimensions. The devices do not have a built-in oscillator, but rely on a drive frequency generated by electronics external to the transducer. They are designed for the frequency range from 300 to 5000 Hz and operate from 0–30 V a.c. (peak-to-peak).
The transducers produce a highly reliable audible tone signal, giving either an extremely clear and penetrating tone or a soft sound for non-aggressive signals. They are available in five octagonal sizes: 13 mm, 17 mm, 21 mm, 24 mm and 30 mm. The devices are suitable for automatic pick-and-place mounting and SMD models are available with heat resistant labels for protection during reflow soldering.
A wide range of target applications includes alarms, gas and metal detectors, measuring and weighing equipment, medical instrumentation, timers and clocks, instrumentation and control systems, copiers, automobiles and trucks, games and toys, as well as cash registers.
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