Additional Resources: Product Page 3D Model date 01/04/2021 page 1 of 5 MODEL: CMS-305-158SP-67 DESCRIPTION: SPEAKER FEATURES 1.5 W rated power 8 ohm rated impedance IP67 rated SPECIFICATIONS parameter conditions/description min typ max units max power: IEC-60268-5, filter 60 seconds on, input power 1.5 2.0 W 120 seconds off, 10 cycles (room temp) impedance at 2.0 kHz 6.8 8 9.2 resonant frequency (Fo) at 1.0 V 440 550 660 Hz frequency response Fo 10,000 Hz at 0.1 W, 10 cm, avg at 0.8, 1.0, 1.2, 1.5 kHz 87 90 93 dB sound pressure level at 1.5 W, 10 cm, avg at 0.8, 1.0, 1.2, 1.5 kHz 94 97 100 dB distortion at 1.5 kHz, 1.0 W, 0.1m 5 % buzz, rattle, etc. must be normal at sine wave, Fo~20 kHz 3.46 V polarity cone moves forward w/ positive dc current to + terminal dimensions 30.0 x 5.7 mm magnet Nd-Fe-B frame material SPCC cone material PEI terminal solder pads weight 7.7 g operating temperature -30 70 C storage temperature -40 80 C hand soldering for maximum 3 seconds 370 380 390 C RoHS yes IP level IP67 (front side) Notes: 1. All specifications measured at 5~35C, humidity at 45~85%, under 86~106 kPa pressure, unless otherwise noted. cuidevices.comAdditional Resources: Product Page 3D Model CUI Devices MODEL: CMS-305-158SP-67 DESCRIPTION: SPEAKER date 01/04/2021 page 2 of 5 MECHANICAL DRAWING units: mm tolerance: 0.2 mm WEEK YEAR cuidevices.com