ZX-18T9A1 18mm Piezo Transducer Sound Discs w/ Leads (5 PCS)
Model ZX-18T9A1 Quantity 5 Color Golden Material Brass + ceramic Features Resonant frequency: 8.0 +/- 0.7kHz; Resonant resistance: 350ohm (max); Capacitance: 7000(PF) +/- 30%; Input voltage: DC 30V; Operating temperature: -20~+70'C; Storage temperature: -30~80'C; Brass disc: 18mm +/- 0.1mm x 0.15mm +/- 0.05mm; Ceramic disc: 14mm +/- 0.1mm x 0.34mm +/- 0.05mm; Lead length: 7cm Application For DIY project Packing List 5 x Piezo transducer sound discs