This is piezo ceramic audio transducer, without electronics. Resonant frequency is approximately 4 kHz. Drive with (up to) 30V AC.
Related products:BUZ-02 | piezo beeper, with electronics, 3 - 20 V DC | |
BUZ-05 | piezo beeper, with electronics, 3 - 28 V DC | |
BUZ-09 | beeper, no electronics | |
BUZ-10 | piezo beeper, with electronics, 5V DC |