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Knowles

EK-3133 Datasheet Preview

EK-3133 Datasheet

Microphones

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EK Series Microphones
Product Features
Electret Condenser Microphone
Lowest Noise Emkay Microphone
Rugged Construction to Withstand
Severe Environmental Conditions
High Electroacoustic Sensitivity
High Resistance to Mechanical Shock
Low Vibration Sensitivity
Various Responses Available
Available with RFI Supression
EK omnidirectional microphones provide a unique
combination of size, performance and value.
These popular microphones are available in many
model varieties without the expense or lead
time of a custom order. Available in unidirectional as
well - see the EL Series.
SPECIALTY TRANSDUCERS
CUSTOM ASSEMBLIES
MICROPHONES
ACOUSTIC TECHNOLOGY




Knowles

EK-3133 Datasheet Preview

EK-3133 Datasheet

Microphones

No Preview Available !

EK Series Microphone Specifications
Performance
Frequency Response
Sensitivity Tolerance
EK flat response models
EK ski-slope, step response and all EL models
DC Supply
Current Drain
Output Impedance @1kHz
DC Output Voltage
Output Noise Level (A-weighted)
Input-Referred Noise Level (A-weighted,1kHz reference)
Input-Referred Vibration Sensitivity
Acoustic Polarity
charted by response type
+/-2.0dB @1000Hz
+/-3.0dB @1000Hz
1.5 -10.0 V
19 uA typical
50 uA maximum
2800 to 6800 ohms
0.2 to 0.9V
-103dBV typical
24dB SPL typical
26dB SPL maximum
(1g acceleration,1kHz reference)
62dB SPL maximum
Increased pressure at sound inlet causes a positive-going
voltage to appear at the output,terminal, relative to the
negative terminal.
Mechanical
Weight
Dimensions
Case Material
Solder Content
0.13 grams
see outline drawings
Type 305 stainless steel
Sn63Pb37
Optional Soldering Fixture
Base:
Nest Plate:
Back Plate:
ET-3042
ET-800
ET-900
Environmental
Humidity Coefficient of Sensitivity
0.02dB per %RH typical
Temperature Range -17C to 63C operating
-40C to 63C storage
ESD Tolerance
MIL-STD-750 Class 1 rating
EOS/ESD-S5.1-1993 Class 2 rating
www.knowlesacoustics.com
AMERICAS:
Knowles Acoustics
1151 Maplewood Drive
Itasca, IL 60143 U.S.A.
Phone: 630-250-5930
Fax: 630-250-5932
EUROPE:
Knowles Acoustics
York Road, Burgess Hill
West Sussex, RT15 9TT
England
Phone: 441-444-235432
Fax: 441-444-872772
JAPAN:
Knowles Acoustics
Kyodo Bloom Building
19-1 Miyasaka 2-Chome
Setagaya-Ku, Tokyo 156, Japan
Phone: 81-3-3439-1151
Fax: 81-3-3439-8822
ASIA:
Knowles Acoustics
5F, No. 129, Lane 235, Bauchiau Rd
Shindian City, Taipei 231, Taiwan
Republic of China
Phone: 886-2-8919-1799
Fax: 886-2-8919-1798
The information contained in this literature is based on our experience to date and is believed to
be reliable and subject tochange without notice. It is intended as a guide for use by persons having
technical skill at their own discretion and risk. We do not guarantee favorable results or assume
any liability in connection with its use. Dimensions contained herein arefor reference purposes only.
For specific dimensional requirements consult factory. This publication is not to be taken as a
license to operate under, or recommendation to infringe any existing patents. This supersedes and
voids all previous literature.
page 2


Part Number EK-3133
Description Microphones
Maker Knowles
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