date 08/05/2022

page 1 of 5

MODEL: CMS-402811-28SP | DESCRIPTION: SPEAKER

cuidevices.com

FEATURES

• 2 W

• miniature

• cloth cone

• solder terminals

SPECIFICATIONS

parameter

conditions/description

min

typ

max

units

input power

max power: 1 minute on, 2 minutes off, 10 cycles

2.0

3.0

W

impedance

at 1.0 kHz, 1.0 Vrms

6.8

8

9.2

Ω

resonant frequency (Fo)

at 1.0 Vrms, 50 cm

360

450

540

Hz

frequency response

200

20,000

Hz

sound pressure level

at 1.0 W, 50 cm, avg at 1.0, 1.2, 1.5, 2.0 kHz

81

84

87

dB

distortion

at 1.0 kHz, 1.0 W

5

%

buzz, rattle, etc.

must be normal at sine wave, 0.2~2 kHz

4.0

V

polarity

cone moves forward w/ positive dc current to “+” terminal

dimensions

40.0 x 28.3 x 11.5

mm

magnet

Nd-Fe-B

frame material

ABS

cone material

cloth

terminal

solder terminals

weight

12.7

g

operating temperature

-20

60

°C

storage temperature

-30

70

°C

hand soldering

for maximum 3 seconds

380

°C

RoHS

yes

Notes:

1. All specifications measured at 15~35°C, humidity at 25~75%, under 86~106 kPa pressure, unless otherwise noted.

Additional Resources: Product Page | 3D Model