Passive Buzzer (Piezo Transducer) 12 mm in Diameter

The passive buzzer with a 12 mm diameter is a compact electroacoustic component designed to produce sounds of various tones, warning signals and simple melodies. Unlike active counterparts, the passive transducer has no built-in oscillator, so to make it sound you must supply an external AC signal or PWM pulses of a set frequency from a control device. The pin terminals allow convenient mounting on breadboards or printed circuit assemblies. Features: Product type: passive buzzer / piezoelectric speaker (Passive Buzzer) Specifications: 12 mm housing diameter, pin terminals for mounting, requires an external AC signal source (PWM/frequency) Purpose: generating audio signals, sound alerts and simple melodies in hobbyist and microcontroller devices