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.
Knowles ST components and assemblies are unique in fit, form and function.
Knowles Specialty Transducer microphones are designed into high value applications in markets such as the following:
Knowles Specialty Transducer microphones include:
Knowles' magnetic microphones (BJ serie) are based on balanced armature technology and are self-shielded against external magnetic fields. The microphones offer high efficiency, stability, and reliability and are small in size.
The piezo ceramic microphones (BL serie) are rugged, stable, and versatile.
This serie features high vibration sensitivity & high resistance to mechanical shock. They may be used as accelerometers.
Knowles' waterproof/submersible subminiature microphones are designed to survive complete immersion in water:
|Serie||Picture||Microphone type||Dimensions (mm)||Directivity||Comments|
|GA||Subminiature||2.00 x 2.00 x 4.00||Omni|
|FG/DFG||Subminiature||Ø2.56 x 2.56||Omni (FG)
|Low noise, high shock resistance. DFG is improved FK with enhanced PFA performance|
|EM||Subminiature||3.63 x 3.63 x 2.28||Omni||EM is EK reduced package size with comparable benefits|
|3.99 x 5.56 x 2.21||Omni
|WP is a waterproof EK. Immersion up to 1m depth|
|EK/EL||Subminiature||4.00 x 5.59 x 2.28||Omni (EL)
|EK offers highest SNR and dyn. Range|
|4.00 x 5.59 x 2.28||Noise canceling||NR is a noise cancelling EK. Stable directional pattern through 10kHz|
|BJ||Magnetic||7.87 x 5.59 x 4.01||Omni, Noise canceling|
|BL||Piezo Ceramic||7.87 x 5.54 x 4.06
7.87 x 5.54 x 2.24
|Ø22.12 x 7.6
Ø22.12 x 9.3
Ø22.12 x 11.43
|Omni||MR models integrate BJ and WP. Immersion up to 15m depth|
To best choose the Specialty Transducer microphone for your application, please do not hesitate to contact us. Our team will be pleased to support you.