Miniature piezo buzzer12/4/2023 ![]() On the other hand, a magnetic buzzer can be driven to generate 85 dB by only 1.5V, but the consumption of the current will be much higher than Piezo one. We suggest inputting higher voltage for a piezo buzzer, normally over 9V to have enough SPL. The piezo buzzer is driven by square waves, and the magnetic buzzer needs 1/2 square waves to drive. Security equipment: warning lights, anti-theft electronic locks, safety equipment and sirens/alarms/car alarm.ĭifference between piezo buzzer & magnetic buzzer:Ī piezo buzzer generates sound because of the piezoelectric effect from the piezoelectric ceramic which drives the metallic diaphragm to vibrate.Ī magnetic buzzer is based on the electromagnetic principle, the metal diaphragm is pulled when input the power, and spring back without power.Electronic products: mobile phone, remote control, anti-lost device, POS machine, electronic toy, robot, watch, facial massager, instruments and apparatuses, unmanned aerial vehicle.Home appliances: refrigerator, washing machine, computer, air conditioner, telephone, microwave oven, oven, TV set, keychain.Medical equipment: glucose meter for blood, temperature test instrument, ECG monitor, fetal heart tester, blood glucose meter.The lead wire type with both-sided adhesive tape installed easily is prepared.They can be used with automated inserters.Moisture-resistant models are also available.Because these buzzers are designed for external excitation, the same part can serve as both a musical tone oscillator and a buzzer. ![]()
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