BK-29725-000 Knowles Acoustics, BK-29725-000 Datasheet - Page 23

SPEAKER Z=640OHMS SS PORT ON END

BK-29725-000

Manufacturer Part Number
BK-29725-000
Description
SPEAKER Z=640OHMS SS PORT ON END
Manufacturer
Knowles Acoustics
Series
BKr
Type
Magnetic, Balanced Armature, End Portr
Datasheets

Specifications of BK-29725-000

Frequency Range
200Hz ~ 4kHz
Impedance
640 Ohm
Size / Dimension
7.87mm L x 5.59mm W x 4.01mm H
Sound Pressure Level
122.5dB
Termination
Solder Pads
Shape
Rectangular
Termination Style
Wire
Dimensions
7.87 mm L x 5.59 mm W x 4.01 mm D
Depth
4.01 mm
Length
7.87 mm
Width
5.59 mm
Transducer Function
Speaker
External Width
5.59mm
Sound Level Spl
128dB
Frequency Response Min
4kHz
Frequency Response Max
200Hz
Device Type
Balanced Armature
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power - Rated
-
Power - Max
-
Material - Cone
-
Material - Magnet
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
423-1103
MR SERIES
The MR Series Assemblies consist of a speaker element attached to a waterproof
bellows assembly. They may be panel mounted, and are suitable for outdoor use
or repeated submersion.
CB SERIES
The CB Series Transceiver offers high electro-acoustic efficiency to conserve power in
push-to-talk radio handsets and other battery operated equipment. The CB is available
with mounting pins to facilitate assembly to a PC board. Model CB-23817-000 is designed
to survive submersion in water.
M M o o d d e e l l
MR-23333-000
M M o o d d e e l l
CB-22849-000
CB-22850-000
CB-23817-000
– Balanced Armature Speaker 25.15 x 25.15 x 9.65 (mm)
– Waterproof Speaker 22.12 DIA x 9.3 (mm)
Sensitivity @ 1kHz
Sensitivity @ 1kHz
(dB SPL)
(dB SPL)
100
73
73
83
Highly waterproof – no loss of performance after
immersion in 15m water
Corrosion resistant
Withstands explosive decompression
Design proven in rugged environments
Leads attached
High resistance to mechanical shock
Acoustically transparent bellows
Resists effects of mud, sand, and salt encrustation
Excellent sound quality
High speech intelligibility, stability, and reliability
Suitable for PCB mounting
Can function as a microphone or beeper
Various impedances
Face and edge port locations available
Port Location
Port Location
Edge
Edge
Edge
Face
www.knowles.com
Impedance @ 500Hz
Impedance @ 500Hz
SPECIALTY TRANSDUCERS – Speakers
(Ohms)
(Ohms)
21
24
48
48
Max SPL @ 500Hz
Max SPL @ 500Hz
(dB SPL)
(dB SPL)
80.5
80.5
110
95
125
115
105
95
85
100
90
80
70
60
50
100
Max SPL @ 1st Peak
Max SPL @ 1st Peak
2
(dB SPL)
(dB SPL)
2
96.5
96.5
129
107
3
3
4
4
5
6 7 8 9
5
6 7 8 9
FREQUENCY (Hz)
Note: All performance curves are typical
FREQUENCY (Hz)
1k
1k
2
2
3
3
4
4
5
5
6 7 8 9
6 7 8 9
10k
10k
23

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