100% pure copper,which are widely used electric cars and other electric!
piezoelectric ceramic is composed of piezoeectric ceramic and metal combation,load resonant cavity , with excited oscillation circuit can make beautiful sounds,widely used in electronic doorbell,household applances,alarm and so on ,has small volume,light weight,good quality,low consumption,log life and other advantages,has a shell buzzer,still can use environmental protection materials.
Diameter: 50mm copper (see photo)
Model: piezoelectric buzzer piece
Resonent Frequency: 10+/-0.5KHZ
Resonent Impedance: 100R MAX
The Static Capacitance: 8000pf plus or minus 30%
Sound pressnre level: 85DB 10cm
The input voltage: 30vp-p max
Operating Temprature: -20~70
Storage Temperature: -30-80
Material identification: Brass
1 x 50mm Piezo Ceramic Element Buzzer