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| (R) EK Features SERIES Actual Size * Electret condenser microphone * High electroacoustic sensitivity * Lowest noise Knowles microphone * High resistance to mechanical shock * Rugged construction to withstand * Low vibration sensitivity severe environmental conditions * Various responses available * Available with RFI suppression TM Standard Response SENSITIVITY IN dB RELATIVE TO 1.0V/0.1 Pa (N/m2) -40 -45 -50 -55 -60 -65 -70 -75 -80 100 EK-3024/5024 EK-3027 EK-3032 2 3 4 5 6 7 8 9 1000 2 3 4 5 6 7 8 9 10000 FREQUENCY IN HERTZ Open circuit sensitivity with 1.3VDC supply (R) data sheet Specification Data Power Requirements Supply Voltage (VS) range: 0.9 to 10VDC typical: 1.3VDC EK Series Quiescent Current Drain (@ VS = 1.3VDC) typical: 19A maximum: 50A Load Voltage (VL) range: 0.2 to 0.9VDC typical: 0.5VDC Output Noise Level (A-weighted) Performance Response/Sensitivity see curves, pages 1, 4-6 Sensitivity Range @ primary test frequency Ski Slope and Step responses: 3dB all other responses: 2dB Low Supply Voltage Sensitivity Loss (Vs reduced from 1.3 to 0.9VDC) typical: 0.3dB maximum: 3.0dB Humidity Coefficient of Sensitivity typical: 0.02dB per %RH (in the absence of condensation) Output Impedance @ 1kHz range: 2.8 to 6.8k nominal: 4.4k Acoustic Polarity Increased pressure at sound inlet causes a positive going voltage to appear at the output terminal, relative to the negative terminal Power Supply Feedthrough Attenuation typical: 14dB, output-referred typical: -103dBV* maximum: -100dBV (Ski Slope models) Input-Referred Noise Level* (A-weighted, 1kHz ref.) typical: 24dB SPL maximum: 26dB SPL Input-Referred Vibration Sensitivity* (1g acceleration, 1kHz ref.) maximum: 62dB SPL Temperature Range operating: -17C to 63C storage: -40C to 63C ESD Tolerance MIL-STD-750 Class 1 rating EOS/ESD-S5.1-1993 Class 2 rating *For standard, damped, undamped, and broadband models only Mechanical Weight 0.13 grams Dimensions See outline drawings, page 7 Case Material Type 305 stainless steel Solder Content Sn63Pb37 Base: ET-3042 Nest Plate: ET-800 Back Plate: ET-900 Optional Soldering Fixture 2 Model Variations EK Series Model EK-3024 EK-3027 EK-3028 EK-3029 EK-3031 EK-3032 EK-3033 EK-3091 EK-3092 EK-3103 EK-3115 EK-3132 EK-3133 EK-3142 EK-5024 EK-5033 EK-7136 EK-7164 EK-7276 EK-9874 Port 12S 0KP 12S 12S 12S 3S 12S 0KP 0KP 0KPL 12S Ka 12SL 0KP 12S 12S 12S 3S 12S 12S Response Standard Standard 6dB/octave Ski Slope 12dB/octave Ski Slope Step Standard Damped Peak 12dB/octave Ski Slope 6dB/octave Ski Slope Broadband Step Broadband Broadband Damped Peak Standard (Screenless) Damped Peak (Screenless) Undamped Peak Damped Peak Damped Peak 12dB/octave Ski Slope Microphones are also available with RFI suppression filters. Other model variations available upon request. Contact Knowles Electronics for details. (R) 3 Damped Peak Response -40 -45 -50 -55 -60 -65 -70 -75 -80 100 SENSITIVITY IN dB RELATIVE TO 1.0V/0.1Pa (N/m2) EK-3033/3142 EK-5033/7276 2 3 4 5 6 7 89 1000 2 3 4 5 6 7 89 10000 FREQUENCY IN HERTZ Open circuit sensitivity with 1.3VDC supply Undamped Peak Response -40 SENSITIVITY IN dB RELATIVE TO 1.0V/0.1Pa (N/m2) EK-7136 -45 -50 -55 -60 -65 -70 -75 -80 100 2 3 4 5 6 7 89 1000 2 3 4 5 6 7 89 10000 FREQUENCY IN HERTZ Open circuit sensitivity with 1.3VDC supply (R) 4 6dB/Octave Ski Slope Response -40 -45 -50 -55 -60 -65 -70 -75 -80 100 SENSITIVITY IN dB RELATIVE TO 1.0V/0.1Pa (N/m2) EK-3028 EK-3092 2 3 4 5 6 7 89 1000 2 3 4 5 6 7 89 10000 FREQUENCY IN HERTZ Open circuit sensitivity with 1.3VDC supply 12dB/Octave Ski Slope Response -40 -45 -50 -55 -60 -65 -70 -75 -80 100 SENSITIVITY IN dB RELATIVE TO 1.0V/0.1Pa (N/m2) EK-3029 EK-3091 2 3 4 5 6 7 89 1000 2 3 4 5 6 7 89 10000 FREQUENCY IN HERTZ Open circuit sensitivity with 1.3VDC supply 5 Step Response -40 -45 -50 -55 -60 -65 -70 -75 -80 100 SENSITIVITY IN dB RELATIVE TO 1.0V/0.1Pa (N/m2) EK-3031 EK-3115 2 3 4 5 6 7 89 1000 2 3 4 5 6 7 89 10000 FREQUENCY IN HERTZ Open circuit sensitivity with 1.3VDC supply Broadband Response -40 -45 -50 -55 -60 -65 -70 -75 -80 100 SENSITIVITY IN dB RELATIVE TO 1.0V/0.1Pa (N/m2) EK-3103/3133 EK-3132 2 3 4 5 6 7 89 1000 2 3 4 5 6 7 89 10000 FREQUENCY IN HERTZ Open circuit sensitivity with 1.3VDC supply 6 Signal Port Locations 1.68 1.55 ( .066 .061 ) 2.82 2.72 ( .111 ) .107 4.01 3.95 12S ( .158 ) .156 2.03 1.93 2.82 2.72 ( .111 ) .107 4.01 3.95 0KP ( .158 ) .156 ( .080 ) .076 5.59 5.52 ( .220 ) .218 2.26 2.15 5.59 5.52 1.45 1.37 ( .220 ) .218 2.26 2.15 1.24 0.99 ( .049 ) .039 ( .089 ) .085 ( .057 ) OUTER .054 DIAMETER ( .045 ) .041 1.24 0.99 ( .049 ) .039 ( .089 ) .085 1.45 1.37 ( .057 ) OUTER .054 DIAMETER ( .066 ) .061 1.14 1.04 NEGATIVE TERMINAL OUTPUT TERMINAL POSITIVE TERMINAL 1.68 1.55 NEGATIVE TERMINAL OUTPUT TERMINAL POSITIVE TERMINAL .64 (.025) MAXIMUM SOLDER BUILDUP .64 (.025) MAXIMUM SOLDER BUILDUP 1.93 1.80 ( .076 .071 ) 2.82 2.72 ( .111 ) .107 4.01 3.95 12SL ( .158 ) .156 2.03 1.93 2.82 2.72 ( .111 ) .107 4.01 3.95 0KPL ( .158 ) .156 ( .080 ) .076 5.59 5.52 ( .220 ) .218 2.26 2.15 5.59 5.52 1.88 1.80 ( .220 ) .218 2.26 2.15 1.24 0.99 ( .049 ) .039 ( .089 ) .085 ( .074 ) OUTER .071 DIAMETER ( .042 ) .038 1.24 0.99 ( .049 ) .039 ( .089 ) .085 1.88 1.80 ( .074 ) OUTER .071 DIAMETER ( .076 ) .071 1.06 0.96 NEGATIVE TERMINAL OUTPUT TERMINAL POSITIVE TERMINAL 1.93 1.80 NEGATIVE TERMINAL OUTPUT TERMINAL POSITIVE TERMINAL .64 (.025) MAXIMUM SOLDER BUILDUP .64 (.025) MAXIMUM SOLDER BUILDUP 1.68 1.55 ( .066 .061 ) 2.82 2.72 ( .111 ) .107 4.01 3.95 3S ( .158 ) .156 0.559 0.457 .022 .018 9 PLACES 2.82 2.72 ( .111 ) .107 4.01 3.95 Ka ( .158 ) .156 1.041 1.039 2.03 1.93 ( .080 ) .076 5.59 5.52 1.45 1.37 ( ) () 1.80 .071 2 PLACES ( .069 ) 1.75 5.59 5.52 .220 .218 ( .041 ) .039 2 PLACES ( .220 .218 ) 2.26 2.15 1.14 1.04 ( .045 ) .041 ( .057 ) OUTER .054 DIAMETER 1.24 .049 0.99 ( .039 ) POSITIVE TERMINAL ( .089 ) .085 1.24 0.99 ( .049 ) .039 2.26 2.15 ( .089 ) .085 NEGATIVE TERMINAL OUTPUT TERMINAL .64 (.025) MAXIMUM NEGATIVE TERMINAL OUTPUT TERMINAL POSITIVE TERMINAL SOLDER BUILDUP .64 (.025) MAXIMUM SOLDER BUILDUP Dimensions in millimeters (inches) 7 SERIES EK 1/3 Octave Equivalent Noise & Output Noise 30 EK-3024 25 Equivalent Noise (dB SPL) 20 15 10 5 0 100 125 160 200 250 315 400 500 630 800 1000 1250 1600 2000 2500 3150 4000 5000 6300 8000 10000 1/3 Octave Bands (Hz) 40 EK-3024 Output Noise (dB re 1V) 20 0 -20 100 125 160 200 250 315 400 500 630 800 1000 1250 1600 2000 2500 3150 4000 5000 6300 8000 10000 1/3 Octave Bands (Hz) Knowles Electronics, Inc. 1151 Maplewood Drive Itasca, Illinois 60143 Phone: (630) 250-5100 Fax: (630) 250-0575 www.knowles.com Knowles Electronics Japan KK Kyodo Bloom Building 19-1 Miyasaka 2-Chome Setagaya-Ku, Tokyo 156-0051, Japan Phone: (81) 3 3439 1151 Fax: (81) 3 3439 8822 Knowles Europe York Road, Burgess Hill West Sussex, RH15 9TT, England Phone: (44) 1444 235432 Fax: (44) 1444 248724 Micromax Pty. Ltd. P.O. Box 1238 Wollongong N.S.W. 2500, Australia Phone: (61) 2 4226 6777 Fax: (61) 2 4226 6602 Knowles Electronics Taiwan, Ltd. 53 Pao Hsing Road Hsin Tien City, Taipei, Taiwan Republic of China Phone: (886) 2 2911 4931 Fax: (886) 2 2918 6868 NOTE: Specifications are subject to change without notice. The information on this Data Sheet reflects typical applications. Specific test specifications defining each model are available by requesting Outline Drawing Sheets 1.1 and Performance Specifications Sheets 2.1 of that model number. Knowles' responsibility is limited to compliance with the Outline Drawing and the Performance Specification application to the subject model at time of manufacture. Knowles Electronics, Inc. 8 Issue 04 - 0801 |
Price & Availability of EK-3028
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