Additional Resources: Product Page 3D Model date 01/21/2020 page 1 of 5 MODEL: CMS-402008-18SP DESCRIPTION: SPEAKER FEATURES 1.5 W cloth cone solder terminals SPECIFICATIONS parameter conditions/description min typ max units input power max power: 1 minute on, 2 minutes off, 10 cycles 1.5 3.0 W impedance at 2.0 kHz, 1.0 Vrms 6.8 8 9.2 resonant frequency (Fo) at 1.0 Vrms 440 550 660 Hz frequency response 200 20,000 Hz at 0.1 W, 10 cm, avg at 0.8, 1.0, 1.2, 1.5 kHz 85 88 91 dB sound pressure level at 1.0 W, 50 cm, avg at 0.8, 1.0, 1.2, 1.5 kHz 81 84 87 dB distortion at 1.0 kHz, 0.1 W 5 % buzz, rattle, etc. must be normal at sine wave, 0.1~2 kHz 2.53 V polarity cone moves forward w/ positive dc current to + terminal dimensions 40 x 20 x 8 mm magnet Nd-Fe-B frame material ABS cone material cloth terminal solder terminals weight 7.6 g operating temperature -20 60 C storage temperature -30 70 C hand soldering for maximum 3 seconds 380 C RoHS yes Notes: 1. All specifications measured at 15~35C, humidity at 25~75%, under 86~106 kPa pressure, unless otherwise noted. cuidevices.comAdditional Resources: Product Page 3D Model CUI Devices MODEL: CMS-402008-18SP DESCRIPTION: SPEAKER date 01/21/2020 page 2 of 5 MECHANICAL DRAWING units: mm tolerance: 0.3 mm cuidevices.com