Microphones

Subminiature performance

• Wide range of size and performance options
• Magnetic, piezo ceramic and electret condenser
• Low noise and RF filtering versions

Hundreds of design possibilities can be applied to your product challenge with our high-performance microphone designs. Ideal for new product ideas that require premium audio and very small form factors, solutions include noise canceling, omni-directional and unidirectional performance. Other variables include size, shape, amplification, sensitivity, low noise, and resistance to vibration and mechanical shock.

 
 
 
 
Series:  EA – EK/EY – EL – EM/BEM – FG/BFG – GA – NR

EA series


Introduced in 1976, the EA is a time-tested electret condenser microphone. It is widely used in more cost sensitive applications.

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

Product Families Model ID Dimensions 1 kHz sensitivity Port Location Response Directional Peak Frequency Noise Max (Input Ref.) Noise Max (Output Noise) Downloads
EA EA-21842-XXX 5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in) -59 12S Std Omni-directional 4800
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(286.32 kB)

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(4.74 MB)

EA EA-21939-XXX 5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in) -59 12S Damped Omni-directional 4800
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(284.88 kB)

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(4.82 MB)

 
 
 
 
Series:  EA – EK/EY – EL – EM/BEM – FG/BFG – GA – NR

EK/EY series


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

Product Families Model ID Dimensions 1 kHz sensitivity Port Location Response Directional Peak Frequency Noise Max (Input Ref.) Noise Max (Output Noise) Downloads
EK/EY EK-23024-000 5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in) -53 12S Std Omni-directional 3500-5500
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(123.97 kB)

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(4.75 MB)

EK/EY EK-23027-000 5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in) -53 0KP Std Omni-directional 4000-6000
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(128.53 kB)

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(4.73 MB)

EK/EY EK-23028-000 5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in) -57 12S 6dB/ Octave Ski Slope Omni-directional 4300-5700
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(127.18 kB)

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(1.60 MB)

EK/EY EK-23033-000 5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in) -53 12S Damped Omni-directional 4500
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(126.67 kB)

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(4.75 MB)

EK/EY EK-23132-000 5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in) -53 KA Broadband Omni-directional 10000
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(124.82 kB)

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(1.09 MB)

EK/EY EK-23133-000 5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in) -53 12SL Broadband Omni-directional 8000 n/a n/a
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(127.06 kB)

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(1.70 MB)

EK/EY EK-23142-000 5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in) -53 0KP n/a Omni-directional 4500 n/a n/a
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(129.15 kB)

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(4.73 MB)

 
 
 
 
Series:  EA – EK/EY – EL – EM/BEM – FG/BFG – GA – NR

EL series


EL unidirectional 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 omnidirectional as well – see the EK Series.

Features

• Unidirectional
• Integral FET amplifier
• High electroacoustical sensitivity
• Low vibration sensitivity
• Low noise
• Cardioid and supercardioid responses
• High rejection of noise from side and rear

Product Families Model ID Dimensions 1 kHz sensitivity Port Location Response Directional Peak Frequency Noise Max (Input Ref.) Noise Max (Output Noise) Downloads
EL EL-23078-XXX 4.00mm x 5.59mm x 2.28mm (.157in x .220in x .090in) -53 12S, 0K 6dB/ Octave Ski Slope Uni-directional 3400-5400
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(196.36 kB)

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(5.40 MB)

 
 
 
 
Series:  EA – EK/EY – EL – EM/BEM – FG/BFG – GA – NR

EM/BEM series


The EM is the most popular omni-directional microphone offered. The superior performance of the low noise EM makes it the choice of hearing instrument manufacturers for all hearing instrument sizes. The EM can also be used in directional applications as a matched omni-directional pair. The BEM is an improved version of the EM microphone. It offers enhanced PFA performance, as well as power-on reset and an electrical high pass filter. The BEM is ideal in directional applications as a matched omni-directional pair.

Features

• Rugged construction to withstand severe environmental conditions
• High resistance to mechanical shock
• Improved RFI and EMI
• Undamped, screen damped, and internally damped responses
• Numerous port locations and a wide range of frequency responses available
• Extended housing EM microphones are also available, improving sensitivity/noise in the same footprint
• Custom corner frequencies achieved through electrical high pass filter optimize noise performance at low frequencies for demanding matching and directional applications
• BEM offers improved Power Feedthrough Attenuation, improved settling time, and electrical high pass filter

Product Families Model ID Dimensions 1 kHz sensitivity Port Location Response Directional Peak Frequency Noise Max (Input Ref.) Noise Max (Output Noise) Downloads
EM/BEM EM-23046-XXX 3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in) -56 12B Std Omni-directional 5000
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(130.58 kB)

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(1.86 MB)

EM/BEM EM-23069-XXX 3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in) -56 12KN Undamped Peak Omni-directional 7400
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(127.06 kB)

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(977.28 kB)

 
 
 
 
Series:  EA – EK/EY – EL – EM/BEM – FG/BFG – GA – NR

FG/BFG series


The FG Series microphone is the world’s smallest electret condenser microphone. Its cylindrical shape and compact size provide for superior fit rates. The FG can also be used in directional applications as a matched omni-directional pair. The BFG is an improved version of the FG microphone and offers enhanced PFA performance and power-on reset for instant settling time. Its electrical high pass filter enabling custom corner frequencies makes the BFG ideal for use in directional applications as a matched omni-directional pair.

Features

• Small size is ideal for multiple applications
• Rugged
• High resistance to mechanical shock
• Exceptionally low vibration sensitivity
• Various responses available
• Integral RFI suppression
• BFG offers improved Power Feedthrough Attenuation, improved settling time, and electrical high pass filter
• Custom corner frequencies achieved through electrical high pass filter optimize noise performance at low frequencies for demanding matching and directional applications

Product Families Model ID Dimensions 1 kHz sensitivity Port Location Response Directional Peak Frequency Noise Max (Input Ref.) Noise Max (Output Noise) Downloads
FG/BFG FG-23329-C05 2.59 dia x 2.59mm (0.102 dia x 0.102in) -53 0KN Flat Omni-directional 10000
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(133.10 kB)

FG/BFG FG-23629-C36 2.59 dia x 2.59mm (0.102 dia x 0.102in) -53 0KN Flat Omni-directional 10000
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(134.24 kB)

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(1.35 MB)

FG/BFG FG-23652-C36 2.59 dia x 2.59mm (0.102 dia x 0.102in) -53 12S Flat Omni-directional 10000
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(137.52 kB)

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(1.38 MB)

FG/BFG FG-23742-C05 2.59 dia x 2.59mm (0.102 dia x 0.102in) -63 0KN Flat Omni-directional 10000
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(131.47 kB)

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(841.73 kB)

FG/BFG FG-26163-000 2.59 dia x 2.59mm (0.102 dia x 0.102in) -58 0KN 6dB/ Octave Ski Slope Omni-directional 10000
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(134.94 kB)

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(1.21 MB)

 
 
 
 
Series:  EA – EK/EY – EL – EM/BEM – FG/BFG – GA – NR

GA series


The GA Series Microphone is a brand new microphone design with unique size and shape. Its elongated 2mm x 2mm x 4mm dimensions are ideal for directional applications, allowing you ultimate flexibility in terminal pad area placement. And the GA is using the new 38 circuit providing excellent sensitivity and noise performance for package size. The GA targets space efficiency in BTE and ITE designs; BTE: End-to-end configuration provides 8mm spacing for directionality while ITE: smaller cross sectional area than FG Series.

Features

• Compact size providing superior fit rates (2mm x 2mm x 4mm)
• Excellent sensitivity and noise performance for package
• Integral RFI suppression
• Exceptionally low vibration sensitivity
• Multiple acoustic port placement versions

Product Families Model ID Dimensions 1 kHz sensitivity Port Location Response Directional Peak Frequency Noise Max (Input Ref.) Noise Max (Output Noise) Downloads
GA GA38-30775-000 2.00mm X 2.00mm x 4.00mm -53 12N n/a n/a n/a n/a n/a
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(180.68 kB)

 
 
 
 
Series:  EA – EK/EY – EL – EM/BEM – FG/BFG – GA – NR

NR series


The NR Series close talking microphones deliver state-of-the-art noise canceling performance. NR microphones are used as headset microphones in the most demanding communication and speech recognition environments. The NR Series microphones are available in boom microphone packages. (See the FB and PNR Series for details)

Features

• Noise Canceling
• Integral FET amplifier
• Diaphragm responds to pressure differential giving high rejection of background noise
• Small size
• Withstands severe environmental conditions
• Low vibration sensitivity
• High electoacoustical sensitivity

Product Families Model ID Dimensions 1 kHz sensitivity Port Location Response Directional Peak Frequency Noise Max (Input Ref.) Noise Max (Output Noise) Downloads
NR NR-23158-000 4.00mm x 5.59mm x 2.28mm (.157in x .220in x .090in) -49 JA/KA Flat Noise Canceling n/a n/a -100 dB
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(412.07 kB)

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(9.87 MB)

NR NR-23159-000 4.00mm x 5.59mm x 2.28mm (.157in x .220in x .090in) -65 JA/KA Flat Noise Canceling n/a n/a -100 dB
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(114.66 kB)

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(13.67 MB)

NR NR-23160-000 4.00mm x 5.59mm x 2.28mm (.157in x .220in x .090in) -52 JA/KA Flat Noise Canceling n/a n/a -100 dB
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(117.83 kB)

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(13.68 MB)

NR NR-25994-000 4.00mm x 5.59mm x 2.28mm (.157in x .220in x .090in) -49 JA/KA Flat Noise Canceling n/a n/a -100 dB
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(406.50 kB)

3D models
(503.89 kB)