Additional Resources: Product Page 3D Model date 01/23/2020 page 1 of 4 MODEL: CMS-40288N DESCRIPTION: SPEAKER FEATURES 85 dB SPL 550 Hz resonant frequency Nd-Fe-B magnet SPECIFICATIONS parameter conditions/description min typ max units maximum power: IEC-60268-5, filter 60s on/120s input power 2.0 3.0 W off, 10 cycles at room temp impedance at 1.5 kHz 6.8 8 9.2 resonant frequency (Fo) 440 550 660 Hz frequency response output SPL -10 dB Fo 20,000 Hz sound pressure level at 1 W, 0.3 m ave, at 0.8, 1.0, 1.2, 1.5 kHz 82 85 88 dB distortion at 2.0 kHz, 1 W 5 % must be normal at sine wave between buzz, rattle, etc. 4.0 V Fo ~ 20,000 Hz dimensions 40.0 x 28.2 x 11.8 mm magnet Nd-Fe-B material ABS cone material cloth terminal solder terminals weight 12.6 g operating temperature -30 70 C storage temperature -40 85 C RoHS yes Notes: 1. All specifications measured at 5~35C, humidity at 45~85%, under 86~106 kPa pressure, unless otherwise noted. SOLDERABILITY parameter conditions/description min typ max units hand soldering for maximum 3 seconds 370 380 390 C cuidevices.comAdditional Resources: Product Page 3D Model CUI Devices MODEL: CMS-40288N DESCRIPTION: SPEAKER date 01/23/2020 page 2 of 4 MECHANICAL DRAWING units: mm tolerance: 0.3 mm && 88 ,, :: WEEK YEAR 01 16--2016 02 17--2017 FREQUENCY RESPONSE CURVE Frequency Response.Magn dB re 20.00 PA ( at 1 W / 0.3 m ) cuidevices.com