SBT-2502P 2.25" 2oz 8 ohm Cone Tweeter, 20W, Magnetic Fluid filled 9/16" aluminum VC,
 

Features: Miniature full paper cone tweeter with soft corrugated paper suspension, treated with edge-dope coating. Magnetic fluid cooled Aluminum voice coil. Mirror finish black Mylar dust-cap.

Specifications-
    Power Handling: 10W RMS / 20W Peak
    Frequency Response: 3,000 ~ 20,000 Hz
    Nominal Impedance: 8Ω
    Voice Coil: 9/16" dia.
    Magnet Weight: 2 oz.
    Sensitivity: 88dB W/M
    Fs: 2.5K Hz
    Re: 6.1Ω

Dimensions -
    Overall Frame Size: 2-3/4" dia.
    Required Cutout: 2-1/2" dia
    Mounting Depth: 1-1/8"