Buzzers are commonly used as piezo buzzers and magnetic buzzers. Compared to piezo buzzers (12~220 V,<20 mA), the magnetic buzzer operates at lower voltages and higher currents (1.5 to 12 V, > 20 mA). Piezo buzzers typically have a greater maximum sound pressure level (SPL) than magnetic buzzers.In a magnetic buzzer, a current is driven through a coil of wire which produces a magnetic field. A flexible ferromagnetic disk is attracted to the coil when the current is present and returns to a "rest" position when the current is not flowing through the coil. The sound from a magnetic buzzer is produced by the movement of the ferromagnetic disk in a similar manner to how the cone in a speaker produces sound. A magnetic buzzer is a current driven device, but the power source is typically a voltage. The current through the coil is determined by the applied voltage and the impedance of the coil
Image | Product Name | Model | Dimension | Rated Voltage | Frequency | SPL | Current | Operating Voltage | Details |
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![]() | 1.5V 2950Hz 90dB Electromagnetic Buzzer | MSET09H | 9.6 * 6.5 mm | 1.5 V | 2950Hz | ≥90dB | MAX. 90 mA | 1~2V | View detail » |
![]() | 3V 5V 12V 85dB Active Buzzer Magnetic Alarm Buzzer | MSES12A | 12 * 7.5mm | 3VDC | 2700±300Hz | ≥87dB@10cm | ≤30mA | 1.5~4VDC | View detail » |
![]() | 3V 5V 2.5khz 85dB Magnetic Buzzer Used For Door Bell Security | MSES12C | 12 * 9.5mm | 5VDC | 2500±200Hz | ≥85dB@10cm | ≤30mA | 4~8VDC | View detail » |
![]() | 1.5V 80dB 85dB Separate PCB Magnetic Buzzer | MSES12D | 12 * 8.5mm | 1.5VDC | 2048±500Hz | ≥85dB@10cm | ≤30mA | 1~2VDC | View detail » |