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Dimensions: 5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)

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Application Notes

KA & KE Mics

EK/EY series microphones

Introduced in 1986, the EK is the lowest noise Knowles microphone. Its high electroacoustic sensitivity and low noise make this microphone an excellent choice for applications where space is not an issue. The EK can also be used in directional applications as a matched omni-directional pair.

Features

  • Rugged construction to withstand severe environmental conditions
  • High resistance to mechanical shock
  • Available with RFI suppression
  • Undamped, screen damped, and internally damped responses
  • Numerous port locations
  • Custom tube diameters and lengths available
  • Wide range of frequency responses

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Hearing instrument mics  (Search All Products)

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Model Id Dimensions 1 kHz Sens. Port Location Response Directional PSR/ PFA (nom.) Peak Freq. Noise max Elec. rolloff
EK-23024-XXX5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-5312SStd Omni-directionaln/a3500-5500 26n/a
EK-23027-XXX5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-530KPStd Omni-directionaln/a4000-6000 26n/a
EK-23028-XXX5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-5712S6dB/ Octave Ski Slope Omni-directionaln/a4300-5700 -100n/a
EK-23029-XXX5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-5012S12dB /Octave Ski Slope Omni-directionaln/a5200 -100n/a
EK-23032-XXX5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-533SStd Omni-directionaln/a3000-5000 26n/a
EK-23033-XXX5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-5312SDamped Omni-directionaln/a4500 26n/a
EK-23089-XXX5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-5712SDamped Omni-directionaln/a3500-5500 26n/a
EK-23092-C015.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-570KP6dB/ Octave Ski Slope Omni-directionaln/a4800-6200 -100n/a
EK-23103-0005.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-530KPLBroadbandOmni-directionaln/a800026n/a
EK-23115-0005.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-7612SStepOmni-directionaln/a6000-100n/a
EK-23132-XXX5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-53KABroadband Omni-directionaln/a10000 26n/a
EK-23133-XXX5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-5312SLBroadband Omni-directionaln/a8000 26n/a
EK-23142-XXX5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-530KP0 Omni-directionaln/a4500 26n/a
EK-23169-A115.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-53JaFlat ResponseOmni-directionaln/a1000026n/a
EK-23176-0005.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-5612SStd Omni-directionaln/a3500-5500 29n/a
EK-23790-D275.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-5312SStdOmni-directionaln/a450026n/a
EK-23791-D275.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-530KPStdOmni-directionaln/a500026n/a
EK-23954-D275.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-5312SUndamped Omni-directionaln/a5000 26n/a
EK-24033-0005.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-5312SStd Omni-directionaln/an/a 26n/a
EK-25024-C095.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-5312SStd (screenless)Omni-directionaln/a3500 - 550026n/a
EK-25033-XXX5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-5312SDamped (screenless) Omni-directionaln/a4500 26n/a
EK-26597-C365.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)000 Omni-directional00 00
EK-26695-C365.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-5512SDamped Omni-directionaln/a3500 - 5500 26n/a
EK-26698-D285.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-5312S/0JPDamped Omni-directionaln/a4500/5000 26n/a
EK-26811-C365.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-5312SDamped Omni-directionaln/a3500-5500 26n/a
EK-26813-C375.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-5312NStd Omni-directionaln/a5000-7000 26n/a
EK-26843-C365.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-599SDamped Omni-directionaln/a3000-5000 32n/a
EK-27263-XXX5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-5312SDamped Omni-directionaln/a4000-6000 26n/a
EK-27276-XXX5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-5312SDamped Omni-directionaln/a4500 26n/a
EK-27345-XXX5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-5412SDamped Omni-directionaln/a3500-5500 26n/a
EK-27404-XXX5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-540KPBroadband Omni-directionaln/a4000-6000 26n/a
EK-27405-XXX5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-540KP/12SBroadband /Damped Omni-directionaln/a3500-5500 / 4000-6000 26n/a
EK-27659-C055.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-533S, 9SStd Omni-directionaln/a0 260
EK-28522-C255.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-5412SDamped Omni-directionaln/a0 260
EK-28585-XXX5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-53 (500Hz)0KPStd Omni-directionaln/a5300 26n/a
EK-28586-XXX5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-5312SDamped Omni-directionaln/a4500 26n/a
EK-28587-XXX5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-530KP/12SStd /Damped Omni-directionaln/a5300 /4500 26n/a
EK-29841-0005.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-599S6dB/ Octave Ski Slope Omni-directionaln/a5000 30.5n/a
EK-29842-0495.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-559SStd Omni-directionaln/a4500 30.5n/a
EK-29878-C055.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-5312SDamped Omni-directionaln/a3500-5500 26n/a
EK-29965-0005.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)012S6dB Omni-directionaln/a0 0n/a
EY-23977-C365.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-5312SBroadband Omni-directionaln/a8000 26n/a
EY-24024-XXX5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-5312SStd Omni-directionaln/an/a 26n/a
EY-27889-1075.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)-5912SStd Omni-directionaln/a3500-5500 28n/a