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date 10/23/2020
page 1 of 6
SERIES: CMS-181325-078X │ DESCRIPTION: SPEAKER
FEATURES
• micro-speaker
• 8 Ω impedance
• rated 0.7 W
• 5 available termination options
SPECIFICATIONS
parameter
input power
impedance
conditions/description
min
typ
0.7
8
max
units
W
max power: as per IEC-268-5, in 1 cc box
at 2.0 kHz, 2.37 Vrms, in 1 cc box
1.0
9.2
6.8
Ω
coil resistance
6.48
7.2
7.92
Ω
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
resonant frequency (Fo)
frequency response
sound pressure level
500
10,000
Hz
at 0.7 W, 10 cm, avg 0.8, 1.0, 1.5, 2.0 kHz, 1 cc
box
90
93
96
dB
at 800~1,200 Hz, 2.37 Vrms, 10 cm
at 1,201~5,000 Hz, 2.37 Vrms, 10 cm
15
10
%
%
distortion
must be normal at sine wave, 0.5~10 kHz, 1 cc
box
buzz, rattle, etc.
2.37
Vrms
polarity
cone moves forward w/ positive dc current to “+” terminal
dimensions
magnet
18 x 13 x 2.5
Nd-Fe-B
mm
cone material
weight
mylar
1.8
g
operating temperature
storage temperature
hand soldering
RoHS
-20
-40
70
85
°C
°C
°C
for maximum 3 seconds (N/A for spring contacts)
yes
380
Notes:
1. All specifications measured at 15~35°C, humidity at 25~75%, under 86~106 kPa pressure, unless otherwise noted.
PART NUMBER KEY
CMS-181325-078 XX
Termination Options:
S = spring contacts
SP = solder pads
Base Number
L100 = wire leads, no connector
L100A = wire leads with Molex housing 51021-0200
L100B = wire leads with JST housing SHR-02V-S-B
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