MICROPHONE, -38DB, OMNI

SPM0204LE5-QB

Manufacturer Part NumberSPM0204LE5-QB
DescriptionMICROPHONE, -38DB, OMNI
ManufacturerKnowles Acoustics
SPM0204LE5-QB datasheet
 


Specifications of SPM0204LE5-QB

Transducer FunctionMicrophoneDevice TypeMicrophone
DirectivityOmniSensitivity-38
Supply Voltage Min1.5VDrain Current Max0.25mA
Supply Voltage3.6VSupply Voltage Max3.6V
Filter TypeRFILead Free Status / RoHS StatusLead free / RoHS Compliant
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SPECIALTY TRANSDUCERS – Accelerometers & Dampers
BU SERIES
– Accelerometer 7.87 x 5.54 (mm)
BU Series Accelerometers are frequently used as contact microphones for radio
communications in high noise environments such as firefighting or combat.
The accelerometers reproduce voice signals from vibrations at the throat or from
bony parts of the head, and are compatible with helmet or headset applications.
Ceramic vibration transducer
High vibration sensitivity
Small size
Wide frequency range
Integral FET amplifier
High resistance to mechanical shock
Withstands severe environmental conditions
Sensitivity @
M M o o d d e e l l
Thickness
1KHz (db re 1V/g)
BU-21771-000
4.06
BU-23173-000
4.06
BU-23842-000
2.24
BU-27135-000
2.24
BF Series
– Acoustic Dampers
Dampers are acoustic cloth screens for insertion inside acoustic tubing.
These damping elements are used between the speaker outlet and the ear canal
to smoothen the frequency response.
Smoothen and shape frequency response
Various acoustical resistances and sizes
M M o o d d e e l l
Color
Resistance (Ohms)
BF-1859-000
White
BF-1860-000
Brown
BF-1861-000
Green
BF-1921-000
Red
BF-1922-000
Orange
BF-1923-000
Yellow
BF-1988-000
White
BF-1991-000
Green
BF-1995-000
Red
BF-1997-000
White
BF-1999-000
Grey
BF-3034-000
Grey
BF-3035-000
Brown
BF-3036-000
Orange
BF-3037-000
Red
BF-3038-000
Green
BF-3039-000
Green
BF-3163-000
Yellow
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Note: All performance curves are typical
Max. Current
DC Supply (V)
Drain (uA)
-45.0±4.5
1.5
50
-39.0±4.5
1.5
50
-40.0±4.0
1.5
50
-45.0±4.5
1.5
300
Nominal Acoustic
PLUG (mm)
680
2.08
1000
2.08
1500
2.08
2200
2.08
3300
2.08
4700
2.08
680
--
1500
--
2200
--
680
--
330
2.08
330
--
1000
--
3300
--
2200
--
1500
--
1500
--
4700
--
www.knowles.com
-25
-35
-45
-55
-65
2
3
4 5 6 7 8 9
2
3
4 5 6 7 8 9
100
FREQUENCY (Hz)
Nominal
“A” Weighted
Output Impedance
Noise (dBre. 1V)
@1 KHz (Ohms)
5200
-103
5200
-103
5200
-103
5200
-103
SCREEN (mm)
--
--
--
--
--
--
1.12
1.12
1.12
1.78
--
1.78
1.78
1.78
1.78
1.78
1.37
1.12
2
3
4 5 6 7 8 9
1k
10k