KNOWLES Speakers, Receivers, Transducers and Dampers This page of product is RoHS compliant. SUBMINIATURE SPEAKERS Knowles sub-miniature speaker designs are based on balanced armature technology, utilized in a variety of high performance audio and communication products. Knowles balanced armature speakers are available in several sizes and efficiencies, which can be finely tuned to meet your specific performance requirements. MOUSER STOCK NO. 721-BK-26824-000 721-BK-28507-000 721-CI-22955-000 721-CI-22960-000 721-DTEC-30008-000 721-EC-23097-000 721-ED-23147-000 721-ED-23619-000 721-ED-29689-000 721-RAB32257000 721-RAB32033000 721-TWFK-30017-000 721-WBFK-30019-000 721-WBFK-30095-000 721-WBHC-23910-000 Knowles Part No. BK-26824-000 BK-28507-000 CI-22955-000 CI-22960-000 DTEC-30008-000 EC-23097-000 ED-23147-000 ED-23619-000 ED-29689-000 RAB-32257-000 RAB-32033-000 TWFK-30017-000 WBFK-30019-000 WBFK-30095-000 WBHC-23910-000 Dimensions: mm (LxWxH) 7.87 x 5.59 x 4.04 7.87 x 5.59 x 4.04 9.47 x 7.18 x 4.10 9.47 x 7.18 x 4.10 7.87 x 4.09 x 5.59 7.59 x 4.34 x 3.73 6.32 x 4.31 x 2.97 6.32 x 4.31 x 2.97 6.32 x 4.31 x 2.97 5.15 x 3.00 x 2.60 5.15 x 2.96 x 2.58 5.00 x 2.73 x 3.86 5.00 x 2.73 x 1.93 5.00 x 2.73 x 1.93 5.17 x 3.55 x 3.00 Sensitivity Port Location 118 125 125 125 123 108 104 104 104 105.5 106 95 91 91 95 12S 12S 12C 12C 12S 12S 12C 12C 12C 12C 12C 12S 12N 12S 12C Imp. @ 1kHZ Imp. @ () 500Hz () 29 16 30 13.3 68 0 400 0 39 35 400 200 87 48 10.2 7.1 10.2 7.1 48 33 50 33.5 43 31 16 15 14.5 13.5 145 130 For quantities greater than listed, call for quote. Ferrofluid MPO 500 MPO Pk No No No No No No No No No No No No No No No 124 124 130 130 128 116 116 116 116 110.5 107 107 114 137 137 143 143 142 130 128 128 128 123.5 125 125 121 1 14.30 14.72 19.87 17.22 19.64 17.87 18.60 18.60 18.60 11.65 11.65 36.75 16.63 16.63 34.88 Price Each 10 13.03 13.42 18.12 15.70 17.90 16.29 16.96 16.96 16.96 10.62 10.62 34.45 15.16 15.16 32.70 25 11.77 12.12 16.37 14.18 16.17 14.71 15.32 15.32 15.32 9.59 9.59 31.01 13.69 13.69 29.43 BALANCED ARMATURE SPEAKERS Knowles * Ultra thin * Wideband outpupt * Medium DCR to impedance ratio MOUSER Knowles STOCK NO. Part No. 721-HODTEC31268000 HODTEC-31268-000 721-HODVTEC31516000 HODVTEC-31516-000 * Similar in size to an EF reciever Product Type Frequency Receiver Receiver Balanced Armature Balanced Armature 100 Hz - 7 kHz 5.95 kHz For quantities greater than listed, call for quote. Sound Pressure Level (SPL) 112 dB 114 dB Impedance Termination Style 112 ohms 192 ohms Solder Pad Price Each 1 10 25 50 44.50 41.71 21.56 19.96 25.55 23.95 37.55 34.76 WATERPROOF TRANSDUCERS Audio Knowles waterproof speaker designs are achieved by sealing the speaker element inside of a waterproof bellows assembly. The assembly can be panel mounted, used outdoors, and for repeated submersion. Design characteristics include no loss of performance after immersion in fifteen meters of water, corrosion resistance, impervious to explosive decompression, and high resistance to mechanical shock. Knowles' waterproof microphones are designed to survive complete immersion in water. Form factors include a miniature design that can be immersed in water to a depth of one meter, and a bellows design for depths to 15 meters. The miniature design offers excellent noise canceling performance that is ideal for underwater sensors and instrumentation. MOUSER STOCK NO. 721-MR-23151-000 721-MR-23333-000 721-MR-28406-000 Knowles Part No. MR-23151-000 MR-23333-000 MR-28406-000 Dimensions: mm Sensitivity Port Location Impedance () o12.7 x 22.23 o12.7 x 22.23 o12.7 x 22.23 -87.5 100 -60 Grill Grill Grill 300 150 3500 Imp. @ 500Hz () 21 - For quantities greater than listed, call for quote. MPO 500 MPO Pk 110 - 129 - 1 27.98 41.65 27.98 Price Each 10 25 26.23 23.61 39.04 35.14 26.23 23.61 DAMPERS Damping elements are used between the receiver outlet and the ear canal to smooth out the frequency response. Various acoustical resistances and sizes are available. Features: * Damping plug has metal ferrule housing, 2.08mm nominal O.D. by 1.78mm nominal I.D. for mounting to acoustic tubing * Damping screens are acoustic cloth screens only for insertion inside acoustic tubing * Other resistances or diameters available upon request MOUSER STOCK NO. 721-BF-1859-000 721-BF-1860-000 721-BF-1861-000 721-BF-1921-000 721-BF-1922-000 721-BF-1923-000 721-BF-1999-000 For quantities greater than listed, call for quote. Knowles Part No. BF-1859-000 BF-1860-000 BF-1861-000 BF-1921-000 BF-1922-000 BF-1923-000 BF-1999-000 Dimensions: mm o2.08 o2.08 o2.08 o2.08 o2.08 o2.08 o2.08 x x x x x x x 2.44 2.44 2.44 2.44 2.44 2.44 2.44 1kHz Sensitivity Port Location 680 1000 1500 2200 3300 4700 330 White Brown Green Red Orange Yellow Grey Price Each 1 10 .76 .742 .76 .742 .76 .742 .76 .742 .76 .742 .76 .742 .76 .742 BALANCE ARMATURE RECEIVER, ENHANCED MOUSER STOCK NO. 721-SR-32453-000 (c) Copyright 2016 Mouser Electronics 2810 Knowles Part No. SR-32453-000 Imp @ 1kHz () 50 mouser.com/knowles to 100mV 104 Sensitivity to 1mW 111 Max. SPL @ 10% THD 118 For quantities greater than listed, call for quote. THD @ 94dB THD @ 100dB 0.3% 0.4% (800) 346-6873 1 5.85 Price Each 10 25 5.20 4.71 50 4.32 (c) Copyright 2016 Mouser Electronics