Able to fully withstand reflow soldering without any negative effect regarding its performance, PKMCS0909E4000-R1 produces loudness of 65 dB min at 4 kHz with drive voltage of ±1.5 Vo-p. Louder sound output is possible with higher drive voltage. Product is suited for battery-powered devices requiring audible user feedback, such as digital thermometers, blood sugar meters, and wall- or remote-mounted smart devices.
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