Additional Resources: Product Page 3D Model PCB Footprint date 10/23/2020 page 1 of 6 SERIES: CMS-181325-078X-67 DESCRIPTION: SPEAKER FEATURES IP67 rated face protection against dust and water ingression micro-speaker 2.5 mm height 5 available termination options SPECIFICATIONS parameter conditions/description min typ max units input power max power: as per IEC-268-5, in 1 cc box 0.7 1.0 W impedance at 2.0 kHz, 2.37 Vrms, in 1 cc box 6.8 8 9.2 coil resistance 6.48 7.2 7.92 at 1.0 Vrms in free air, 10 cm 640 800 960 Hz resonant frequency (Fo) at 2.37 Vrms in 1 cc box, 10 cm 880 1,100 1,320 Hz frequency response 500 10,000 Hz at 0.7 W, 10 cm, avg 0.8, 1.0, 1.5, 2.0 kHz, 1 cc sound pressure level 90 93 96 dB box at 800~1,200 Hz, 2.37 Vrms, 10 cm 15 % distortion at 1,201~5,000 Hz, 2.37 Vrms, 10 cm 10 % must be normal at sine wave, 0.5~10 kHz, 1 cc buzz, rattle, etc. 2.37 Vrms box polarity cone moves forward w/ positive dc current to + terminal dimensions 18 x 13 x 2.5 mm magnet Nd-Fe-B cone material mylar weight 1.8 g operating temperature -20 70 C storage temperature -40 85 C hand soldering for maximum 3 seconds (N/A for spring contacts) 380 C RoHS yes IP level IP67 (front side) Notes: 1. All specifications measured at 15~35C, humidity at 25~75%, under 86~106 kPa pressure, unless otherwise noted. PART NUMBER KEY CMS-181325-078 XX - 67 Termination Options: S = spring contacts Base Number SP = solder pads L100 = wire leads, no connector L100A = wire leads with Molex housing 51021-0200 L100B = wire leads with JST housing SHR-02V-S-B cuidevices.comAdditional Resources: Product Page 3D Model PCB Footprint CUI Devices SERIES: CMS-181325-078X-67 DESCRIPTION: SPEAKER date 10/23/2020 page 2 of 6 MECHANICAL DRAWINGS units: mm tolerance: 0.2 mm SPRING CONTACTS Recommended Pad Layout SOLDER PADS cuidevices.com