SWM-20R3.6-32N0.25R

Features: 
Mylar
Suitable for Telecommunication applications
Waterproof
Characteristic Minimum Rated Maximum Notes
Type of Frame Metal
Type of Diaphragm PET
Type Magnetic
Sound Pressure Level dB at 30cm 79.46 Measured 89±3dB at 0.1W and 10cm.
Power W 0.1 0.2
Frequency kHz 0.75 0.75 9
Available Input Impedance Ω 8 16 300
Width mm 20
Height mm 3.6

Dimension Drawing: