For more information, please visit the product page. date 03/25/2015 page 1 of 3 MODEL: CDS-18138A DESCRIPTION: SPEAKER FEATURES micro-speaker 8 ohm impedance spring leads SPECIFICATIONS parameter conditions/description min typ max units maximum power: IEC-60268-5, filter 60s on/120s input power 0.7 1.0 W off, 10 cycles at room temp impedance at 1.5 kHz, 1.0 V 7.2 8 8.8 300 375 450 Hz resonant frequency (Fo) in 1 cc closed box 702 780 858 Hz frequency response average SPL -10 dB Fo 20,000 Hz sound pressure level at 0.7 W, 0.1 m ave, at 2.0, 3.0, 4.0 kHz 86 89 92 dB distortion at 1.0 kHz, 0.7 W, in 1 cc closed box 10 % must be normal at sine wave between buzz, rattle, etc. 2.37 V 400 ~ 5 kHz, in 1 cc closed box cone will move forward with positive dc current to polarity + terminal dimensions 18.0 x 13.0 x 2.5 mm magnet Nd-Fe-B material PPA cone material mylar terminal spring type weight 1.6 g operating temperature -20 70 C storage temperature -40 85 C RoHS 2011/65/EU Notes: 1. All specifications measured at 5~35C, humidit y at 45~85%, under 86~106kPa pressure, unless otherwise noted. cui.com DISCONTINUEDFor more information, please visit the product page. CUI Inc MODEL: CDS-18138A DESCRIPTION: SPEAKER date 03/25/2015 page 2 of 3 MECHANICAL DRAWING units: mm tolerance: 0.2 mm RECOMMENDED PCB LAYOUT TOP VIEW Notes: 1. Working height of the spring contacts is <0.4 mm. 2. The cone extends beyond the housing by a maximum of 0.3 mm during operation. RESPONSE CURVES Frequency Response Curve Total Harmonic Distortion Curve cui.com DISCONTINUED