Mechanical pin buzzer, Model: NOR-2316P2, Resonant Frequency:400±100Hz, Dimension:23 * 14mm, Rated Voltage:12VDC, Resonant Frequency:400±100Hz, SPL:≥75dB@10cm, Current:≤25mA, Operating Voltage:1.2V 3V 12V 24V-P.
Piezo buzzer, SMD buzzer, Magnetic buzzer, Please go to this page.
Mechanical pin buzzerDetails information:
Mechanical Pin buzzer is always high resistance, DC resistance is infinite, AC impedance is also very large, narrow-band sound device, usually made of piezoelectric ceramics. A larger voltage is needed to drive, but the current is very small, just a few mA. The power is also very small. Active buzzer, with internal oscillation and driving circuit. Just add power and it can ring. A passive buzzer, like a horn, needs to add alternating audio voltage to make sound, and it can also make sounds of different frequencies. However, the sound of the buzzer is unpleasant anyway, so the upper wave is often added instead of the sine.
The mechanical buzzer is mainly composed of a multivibrator, a buzzer, an impedance matcher, a resonance box, and a shell. The piezoelectric buzzer shell is also equipped with a light-emitting diode. The multivibrator is composed of a transistor or integrated circuit composition When the power is turned on (1.5~15V DC working voltage), the multivibrator starts to vibrate and outputs 1.5~2.5kHZ audio signals, the impedance matcher drives the buzzer to sound, and the piezo buzzer element is composed of Lead zirconate titanate or lead magnesium niobate piezoceramic material is made of silver electrodes plated on both sides of the ceramic sheet, and after polarization and aging treatment, it is then glued together with the brass sheet or stainless steel sheet.
The mechanical buzzer is an electronic buzzer with an integrated structure. It is powered by DC voltage and is widely used in computers, printers, copiers, alarms, electronic toys, automotive electronic equipment, telephones, timers, and other electronic products. Sound device.
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