Piezo Buzzer

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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 Resonant Frequency SPL Current Operating Voltage Details
// 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 2.3khz 85dB Magnetic Buzzer Used For Door Bell Security MSES12C 12 * 9.5mm 3VDC 2500±200Hz ≥80dB@10cm ≤30mA 1.5~5VDC 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 »

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