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date
08/05/2022
page 1 of 3
MODEL: CDS-40304 | DESCRIPTION: SPEAKER
FEATURES
• micro-speaker
• wide operating temp range
• 4 ohm impedance
SPECIFICATIONS
parameter
conditions/description
min
typ
max
units
input power
maximum power: IEC-60268-5, filter 60s on/120s off, 10
cycles at room temp
2.0
3.0
W
impedance
at 2.0 kHz, 1.0 V
3.4
4
4.6
Ω
resonant frequency (Fo)
at 1.0 V
frequency response
average SPL -10 dB
320
Fo
400
sound pressure level
at 2.0 W, 0.1 m ave, at 0.8, 1.0, 1.2, 1.5 kHz
at 1.0 W, 1.0 m ave, at 0.8, 1.0, 1.2, 1.5 kHz
99
76
distortion
at Fo ~ 6 kHz, 2 W
buzz, rattle, etc.
must be normal at sine wave between Fo ~ 20 kHz
polarity
cone will move forward with positive dc current to “+”
terminal
dimensions
40 x 30 x 7.1
magnet
Nd-Fe-B
material
ABS777
cone material
paper + cloth
terminal
solder pads
Hz
Hz
105
82
dB
dB
15
%
2.83
V
mm
weight
7.5
operating temperature
storage temperature
RoHS
Notes:
102
79
480
20,000
g
-30
70
°C
-40
85
°C
yes
1. All specifications measured at 5~35°C, humidity at 45~85%, under 86~106kPa pressure, unless otherwise noted.
SOLDERABILITY
parameter
conditions/description
min
typ
max
units
hand soldering
for maximum 3 seconds
370
380
390
°C
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CUI DEVICES | MODEL: CDS-40304 | DESCRIPTION: SPEAKER
date 08/05/2022 | page 2 of 3
MECHANICAL DRAWING
units: mm
tolerance: ±0.25 mm
RESPONSE CURVES
Frequency Response Curve
Total Harmonic Distortion Curve
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CUI DEVICES | MODEL: CDS-40304 | DESCRIPTION: SPEAKER
date 08/05/2022 | page 3 of 3
REVISION HISTORY
rev.
description
date
1.0
initial release
03/25/2015
1.01
brand update
01/22/2020
logo, datasheet style update
08/05/2022
1.02
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.
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