date
03/23/2018
page
1 of 5
cui.com
SERIES: CMS-181325-078X │ DESCRIPTION: SPEAKER
FEATURES
• micro-speaker
• 8 Ω impedance
• rated 0.7 W
• 3 available contact methods
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 Ω
coil resistance 6.48 7.2 7.92 Ω
resonant frequency (Fo)
at 1.0 Vrms in free air, 10 cm
at 2.37 Vrms in 1 cc box, 10 cm
640
880
800
1,100
960
1,320
Hz
Hz
frequency response 500 10,000 Hz
sound pressure level
at 0.7 W, 10 cm, avg 0.8, 1.0, 1.5, 2.0 kHz, 1 cc
box
90 93
96 dB
distortion
at 800~1,200 Hz, 2.37 Vrms, 10 cm
at 1,201~5,000 Hz, 2.37 Vrms, 10 cm
15
10
%
%
buzz, rattle, etc.
must be normal at sine wave, 0.5~10 kHz, 1 cc
box
2.37
Vrms
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 2011/65/EU
Notes: 1. All specications measured at 15~35°C, humidity at 25~75%, under 86~106 kPa pressure, unless otherwise noted.
PART NUMBER KEY
Base Number
Termination Options:
S = spring contacts
SP = solder pads
L100 = wire leads
CMS-181325-078 XX
For more information, please visit the product page.
