Additional Resources: Product Page | 3D Model date 10/13/2020 page 1 of 3 MODEL: CMS0321KLX │ DESCRIPTION: SPEAKER FEATURES • 23 mm • square frame • 2.0 W • 8 Ω • neodymium magnet • paper cone SPECIFICATIONS parameter conditions/description min typ max units input power 2.0 4.0 W impedance at 1.0 kHz, 1.0 V 6.8 8 9.2 Ω resonant frequency (Fo) at 1.0 V 280 350 420 Hz frequency response Fo 15,000 Hz sound pressure level at 1.0 W, 50 cm, avg at 0.4, 0.5, 0.6, 0.8 kHz 83 86 89 dB buzz, rattle, etc. must be normal at sine wave 4.0 V dimensions 23 x 23 x 14.5 mm magnet Nd-Fe-B cone material paper terminal solder eyelets weight 27.8 g operating temperature -25 60 °C hand soldering for maximum 3 seconds 340 350 360 °C RoHS yes cuidevices.com

Additional Resources: Product Page | 3D Model CUI Devices │ MODEL: CMS0321KLX │ DESCRIPTION: SPEAKER date 10/13/2020 │ page 2 of 3 MECHANICAL DRAWING units: mm 32.0 (TYP) 1.6 (4 PLCS) 7.2 (6 PLCS) 26.5 (TYP) 30° 26.0 75° 27.6 14.5 0.3 1.4 (4 PLCS) 3.8 0.2 2.6 (4 PLCS) FREQUENCY RESPONSE CURVE parameter conditions/description potentiometer range 50 dB rectifier RMS lower limit frequency 20 Hz wr. speed 100 mm/sec zero level 60 dB cuidevices.com

Additional Resources: Product Page | 3D Model CUI Devices │ MODEL: CMS0321KLX │ DESCRIPTION: SPEAKER date 10/13/2020 │ page 3 of 3 REVISION HISTORY rev. description date 1.0 initial release 07/25/2007 1.01 base thickness changed from 3.0 mm to 3.8 mm 05/05/2008 1.02 brand update 10/13/2020 The revision history provided is for informational purposes only and is believed to be accurate. CUI Devices offers a one (1) year limited warranty. Complete warranty information is listed on our website. CUI Devices reserves the right to make changes to the product at any time without notice. Information provided by CUI Devices is believed to be accurate and reliable. However, no responsibility is assumed by CUI Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. CUI Devices products are not authorized or warranted for use as critical components in equipment that requires an extremely high level of reliability. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. cuidevices.com