YD28M-148Hrc

Specification
 
 
Diameter: 28mm(1.1 inch)
Height: 5.4mm(0.21 inch)
Nominal Impedance: 150Ω±15%
Resonance Frequency: 620Hz ±20%
Frequency Response: 620-5000Hz 10dB
Sound Pressure Level: 84dB(0.1W/0.1M)
Nominal Power: 0.25W
Maximum Power: 0.5W