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Electro-Mechanical Surface Mount Transducers

Tue, 09/20/2011 - 12:44pm
SMT-0540-T-7-R-webThe parts may be small but they offer a typical sound output of 80dBA @ 10cm, which is comparable to parts three times the size. The SMT 0540 series Transducers are electro-mechanical devices that are constructed using a permanent magnet surrounding an electro-magnetic coil with a very thin metal diaphragm resting on top.

When power (0-p signal) is applied, the electro-magnetic coil will pulse moving the diaphragm up and down very fast. Varying the input signal voltage and/or frequency will change the sound output. The device will have the loudest sound output with an input signal set to the resonant frequency at the maximum rated voltage.

The parts can be manufactured with different resonant frequencies by changing the coil and/or modifying the sound chamber.

PUI Audio Incorporated, www.puiaudio.com.
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