Microphones

Hearing instrument microphones

• Complete range of configuration options
• Wide range of size and performance options
• Custom crafted designs

Knowles’ continues to drive the design and development of new microphone solutions for hearing aids. Developments include unidirectional, omni-directional, matched pairs, and combined uni-omni microphone designs. Behind-the-ear, in-the-ear,in-the-canal, completely in-the-canal, and new cochlear completely in-the-ear solutions are refined through variables such as shell size, RFI suppression, sound damping, port configuration, frequency response, shock resistance and more.

Series: EA – EK/EY – EL – EM/BEM – FG/BFG – MQM – QM – TD – TM/BTM – TO/BTO – TP

EA series

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

• 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	kHz Sensitivity	Port Location	Response	Directional	Peak Freq.	Noise max	Elec. Rolloff	Downloads
EA	EA-21842-000	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-59	12S	Std	Omni-directional	4800	28.5	n/a	Tech specs (286.32 kB) 3D models (4.74 MB)
EA	EA-21843-000	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-59	3S	Std	Omni-directional	4250	28.5	n/a	Tech specs (288.44 kB) 3D models (4.82 MB)
EA	EA-21845-C37	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-59	0KP	Std	Omni-directional	5000	28.5	n/a	Tech specs (175.60 kB) 3D models (5.29 MB)
EA	EA-21868-000	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-61	12S	6dB/ Octave Ski Slope	Omni-directional	5200	-101	n/a	Tech specs (287.65 kB) 3D models (1.60 MB)
EA	EA-21939-000	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-59	12S	Damped	Omni-directional	4800	28.5	n/a	Tech specs (284.88 kB) 3D models (4.82 MB)
EA	EA-21986-000	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-61	3S	n/a	Omni-directional	5000	30.5	n/a	Tech specs (130.38 kB) 3D models (4.80 MB)
EA	EA-23003-000	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-61	12S	Undamped	Omni-directional	5200	30.5	n/a	Tech specs (130.10 kB) 3D models (5.11 MB)
EA	EA-23006-A66	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-65	12S	6dB	Omni-directional	0	-101	n/a	Tech specs (107.30 kB) 3D models (1.72 MB)
EA	EA-23015-000	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-61	3S	Undamped	Omni-directional	5000	30.5	n/a	Tech specs (171.75 kB) 3D models (5.13 MB)
EA	EA-23178-078	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-61	12S	Damped	Omni-directional	4800	28.5	n/a	Tech specs (286.61 kB) 3D models (4.82 MB)
EA	EA-26520-000	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-59	12S	Damped	Omni-directional	4800	29.5	n/a	Tech specs (211.03 kB) 3D models (4.82 MB)
EA	EA-26781-000	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-65 (226Hz)	12S	Std	Omni-directional	n/a	28.5	n/a	Tech specs (148.64 kB) 3D models (4.75 MB)
EA	EA-27076-000	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-59	0KN	Std	Omni-directional	9500	28	n/a	Tech specs (230.25 kB) 3D models (999.42 kB)

Series: EA – EK/EY – EL – EM/BEM – FG/BFG – MQM – QM – TD – TM/BTM – TO/BTO – TP

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

Product Families	Model ID	Dimensions	kHz Sensitivity	Port Location	Response	Directional	Peak Freq.	Noise max	Elec. Rolloff	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	26	n/a	Tech specs (123.97 kB) 3D models (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	26	n/a	Tech specs (128.53 kB) 3D models (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	-100	n/a	Tech specs (127.18 kB) 3D models (1.60 MB)
EK/EY	EK-23029-000	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-50	12S	12dB/ Octave Ski Slope	Omni-directional	5200	-100	n/a	Tech specs (126.94 kB) 3D models (1.60 MB)
EK/EY	EK-23032-000	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-53	3S	Std	Omni-directional	3000-5000	26	n/a	Tech specs (127.64 kB) 3D models (4.77 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	26	n/a	Tech specs (126.67 kB) 3D models (4.75 MB)
EK/EY	EK-23089-C48	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-57	12S	Damped	Omni-directional	3500-5500	26	n/a	Tech specs (130.72 kB) 3D models (5.17 MB)
EK/EY	EK-23092-C01	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-57	0KP	6dB/ Octave Ski Slope	Omni-directional	4800-6200	-100	n/a	Tech specs (120.44 kB) 3D models (1.58 MB)
EK/EY	EK-23103-000	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-53	0KPL	Broadband	Omni-directional	8000	26	n/a	Tech specs (132.86 kB) 3D models (7.72 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	26	n/a	Tech specs (124.82 kB) 3D models (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	26	n/a	Tech specs (127.06 kB) 3D models (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	26	n/a	Tech specs (129.15 kB) 3D models (4.73 MB)
EK/EY	EK-23169-A11	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-53	Ja	Flat	Omni-directional	10000	26	n/a	Tech specs (130.38 kB) 3D models (1.10 MB)
EK/EY	EK-23790-D27	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-53	12S	Std	Omni-directional	4500	26	n/a	Tech specs (127.84 kB) 3D models (5.06 MB)
EK/EY	EK-23791-D27	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-53	0KP	Std	Omni-directional	5000	26	n/a	Tech specs (130.40 kB) 3D models (4.73 MB)
EK/EY	EK-25024-C09	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-53	12S	Std (screenless)	Omni-directional	3500 – 5500	26	n/a	Tech specs (127.77 kB) 3D models (1.60 MB)
EK/EY	EK-25033-C09	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-53	12S	Damped (screenless)	Omni-directional	4500	26	n/a	Tech specs (127.72 kB) 3D models (1.60 MB)
EK/EY	EK-26597-C36	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	0	0		Omni-directional	0	0	0	Tech specs (129.99 kB) 3D models (5.08 MB)
EK/EY	EK-26695-C36	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-55	12S	Damped	Omni-directional	3500 – 5500	26	n/a	Tech specs (128.23 kB) 3D models (5.06 MB)
EK/EY	EK-26698-D28	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-53	12S/0JP	Damped	Omni-directional	4500/5000	26	n/a	Tech specs (186.24 kB) 3D models (9.22 MB)
EK/EY	EK-26811-C36	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-53	12S	Damped	Omni-directional	3500-5500	26	n/a	Tech specs (126.42 kB) 3D models (5.06 MB)
EK/EY	EK-26813-C37	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-53	12N	Std	Omni-directional	5000-7000	26	n/a	Tech specs (123.43 kB) 3D models (1.32 MB)
EK/EY	EK-27263-000	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-53	12S	Damped	Omni-directional	4000-6000	26	n/a	Tech specs (127.40 kB) 3D models (1.60 MB)
EK/EY	EK-27276-000	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-53	12S	Damped	Omni-directional	4500	26	n/a	Tech specs (127.35 kB) 3D models (1.60 MB)
EK/EY	EK-27404-000	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-54	0KP	Broadband	Omni-directional	4000-6000	26	n/a	Tech specs (122.59 kB) 3D models (4.73 MB)
EK/EY	EK-27405-000	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-54	0KP/12S	Broadband /Damped	Omni-directional	3500-5500 / 4000-6000	26	n/a	Tech specs (93.04 kB) 3D models (9.22 MB)
EK/EY	EK-28522-C25	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-54	12S	Damped	Omni-directional	0	26	0	Tech specs (178.45 kB) 3D models (4.64 MB)
EK/EY	EK-28585-C77	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-53 (500Hz)	0KP	Std	Omni-directional	5300	26	n/a	Tech specs (121.34 kB) 3D models (1.58 MB)
EK/EY	EK-28586-C77	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-53	12S	Damped	Omni-directional	4500	26	n/a	Tech specs (125.79 kB) 3D models (4.75 MB)
EK/EY	EK-28587-C77	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-53	0KP/12S	Std /Damped	Omni-directional	5300 /4500	26	n/a	Tech specs (86.65 kB) 3D models (2.83 MB)
EK/EY	EK-29841-000	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-59	9S	6dB/ Octave Ski Slope	Omni-directional	5000	30.5	n/a	Tech specs (122.85 kB) 3D models (5.14 MB)
EK/EY	EK-29842-049	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-55	9S	Std	Omni-directional	4500	30.5	n/a	Tech specs (123.65 kB) 3D models (5.14 MB)
EK/EY	EK-29965-000	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	0	12S	6dB	Omni-directional	0	0	n/a	Tech specs (128.19 kB) 3D models (1.60 MB)
EK/EY	EY-24024-C05	5.56mm x 3.98mm x 2.21mm (.219in x .157in x .087in)	-53	12S	Std	Omni-directional	n/a	26	n/a	Tech specs (163.97 kB) 3D models (4.46 MB)

Series: EA – EK/EY – EL – EM/BEM – FG/BFG – MQM – QM – TD – TM/BTM – TO/BTO – TP

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	kHz Sensitivity	Port Location	Response	Directional	Peak Freq.	Noise max	Elec. Rolloff	Downloads
EL	EL-23077-000	4.00mm x 5.59mm x 2.28mm (.157in x .220in x .090in)	-52	3S, 9S	6dB/ Octave Ski Slope	Uni-directional	3100-5100	-100	n/a	Tech specs (197.92 kB) 3D models (5.37 MB)
EL	EL-23078-000	4.00mm x 5.59mm x 2.28mm (.157in x .220in x .090in)	-53	12S, 0K	6dB/ Octave Ski Slope	Uni-directional	3400-5400	-100	n/a	Tech specs (196.36 kB) 3D models (5.40 MB)
EL	EL-23083-000	4.00mm x 5.59mm x 2.28mm (.157in x .220in x .090in)	-56	12S, 0JP	Std	Uni-directional	0	-100	n/a	Tech specs (209.41 kB) 3D models (5.79 MB)
EL	EL-23085-C28	4.00mm x 5.59mm x 2.28mm (.157in x .220in x .090in)	-54.5	3S, 9S	6dB/ Octave Ski Slope	Uni-directional	3100-5100	-100	n/a	Tech specs (222.26 kB) 3D models (5.37 MB)
EL	EL-23177-000	4.00mm x 5.59mm x 2.28mm (.157in x .220in x .090in)	-56	0JP /12S	6dB/ Octave Ski Slope	Uni-directional	3400 – 5400	-97	n/a	3D models (5.42 MB)
EL	EL-29851-C37	4.00mm x 5.59mm x 2.28mm (.157in x .220in x .090in)	-59	0KP / 3S	6dB/ Octave Ski Slope	Uni-directional	3200 – 5200	-100	n/a
EL	EL-29924-C36	4.00mm x 5.59mm x 2.28mm (.157in x .220in x .090in)	-53	9S / 12S	6dB/ Octave Ski Slope	Uni-directional	3100-5100	-100	n/a	Tech specs (377.54 kB) 3D models (5.78 MB)

Series: EA – EK/EY – EL – EM/BEM – FG/BFG – MQM – QM – TD – TM/BTM – TO/BTO – TP

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	kHz Sensitivity	Port Location	Response	Directional	Peak Freq.	Noise max	Elec. Rolloff	Downloads
EM/BEM	BEM-23346-D47	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-53	12B	Std	Omni-directional	5000	28	180	Tech specs (129.31 kB) 3D models (1.46 MB)
EM/BEM	BEM-23368-D47	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-53	12B	Damped	Omni-directional	4800	28	180	Tech specs (130.09 kB) 3D models (1.46 MB)
EM/BEM	BEM-24368-D47	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-53	12S	Damped	Omni-directional	4800	28	180	Tech specs (130.39 kB) 3D models (4.88 MB)
EM/BEM	EM-23046-000	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-56	12B	Std	Omni-directional	5000	31	n/a	Tech specs (130.58 kB) 3D models (1.86 MB)
EM/BEM	EM-23047-000	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-58.5	12B	6dB/ Octave Ski Slope	Omni-directional	5500	-97	n/a	Tech specs (132.48 kB) 3D models (1.88 MB)
EM/BEM	EM-23056-000	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-56	12KP	Std	Omni-directional	5000	31	n/a	Tech specs (133.08 kB) 3D models (1.28 MB)
EM/BEM	EM-23058-000	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-68.5	12B	Step	Omni-directional	5000	-97	n/a	3D models (2.15 MB)
EM/BEM	EM-23059-000	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-64.5	12B	12dB/ Octave Ski Slope	Omni-directional	6400	97	n/a	Tech specs (131.29 kB) 3D models (1.62 MB)
EM/BEM	EM-23068-000	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-56	12B	Damped Peak	Omni-directional	4800	31	n/a	Tech specs (131.17 kB) 3D models (1.86 MB)
EM/BEM	EM-23069-000	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-56	12KN	Undamped Peak	Omni-directional	7400	33	n/a	Tech specs (127.06 kB) 3D models (977.28 kB)
EM/BEM	EM-23346-C36	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-52	12B	Std	Omni-directional	5000	28	n/a	Tech specs (141.78 kB) 3D models (1.50 MB)
EM/BEM	EM-23356-C36	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-52	12KP	Std	Omni-directional	5000	28	n/a	Tech specs (129.45 kB) 3D models (1.24 MB)
EM/BEM	EM-23368-D59	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-52	12B	Damped Peak	Omni-directional	4800	28	n/a	Tech specs (131.39 kB) 3D models (651.57 kB)
EM/BEM	EM-23446-C36	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-56	12B	Std	Omni-directional	5000	28	n/a	Tech specs (111.89 kB) 3D models (1.62 MB)
EM/BEM	EM-23447-C36	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-58.5	12B	6dB/ Octave Ski Slope	Omni-directional	5500	-98.5	n/a	Tech specs (111.53 kB) 3D models (1.94 MB)
EM/BEM	EM-23456-C36	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-56	12KP	Std	Omni-directional	5400	28	n/a	Tech specs (112.49 kB) 3D models (1.75 MB)
EM/BEM	EM-23458-000	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-64.5	12B	Step	Omni-directional	5000	-97	n/a	Tech specs (110.75 kB)
EM/BEM	EM-23459-C36	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-52.5	12B	12dB/ Octave Ski Slope	Omni-directional	6400	-99.5	n/a	3D models (1.67 MB)
EM/BEM	EM-23468-C36	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-56	12B	Damped Peak	Omni-directional	4800	28	n/a	Tech specs (112.40 kB) 3D models (1.97 MB)
EM/BEM	EM-23800-C36	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-52	12B	Std	Omni-directional	5000	28	n/a	Tech specs (129.52 kB) 3D models (651.57 kB)
EM/BEM	EM-23800-C36	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-52	12SL	Std	Omni-directional	5500	28	n/a	Tech specs (128.98 kB) 3D models (651.57 kB)
EM/BEM	EM-23897-S05	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-52	12B	n/a	Omni-directional	4800	28	n/a	Tech specs (58.13 kB) 3D models (3.27 MB)
EM/BEM	EM-23976-000	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-54	12S	Std	Omni-directional	5500	28	n/a	Tech specs (124.24 kB) 3D models (2.78 MB)
EM/BEM	EM-23979-D52	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-52	12SL	n/a	Omni-directional	5500	28	n/a	Tech specs (59.02 kB) 3D models (10.96 MB)
EM/BEM	EM-24046-000	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-56	12SL	Std	Omni-directional	5500	31	n/a	Tech specs (126.22 kB) 3D models (5.37 MB)
EM/BEM	EM-24047-XXX	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-58.5	12SL	6dB/ Octave Ski Slope	Omni-directional	5800	-97	n/a
EM/BEM	EM-24058-000	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-68.5	12SL	Step	Omni-directional	5000	-97	n/a
EM/BEM	EM-24059-000	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-52.5	12SL	12dB/ Octave Ski Slope	Omni-directional	6400	-97	n/a	Tech specs (133.17 kB) 3D models (1.74 MB)
EM/BEM	EM-24068-000	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-56	12SL	Damped Peak	Omni-directional	4800	31	n/a	Tech specs (133.73 kB) 3D models (5.37 MB)
EM/BEM	EM-24347-C36	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-54.5	12SL	6dB/ Octave Ski Slope	Omni-directional	5800	-98.5	n/a	Tech specs (123.34 kB) 3D models (2.78 MB)
EM/BEM	EM-24358-080	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-49	12SL	Step	Omni-directional	5000	-97	n/a	Tech specs (133.10 kB)
EM/BEM	EM-24368-C36	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-52	12SL	Damped Peak	Omni-directional	4800	28	n/a	Tech specs (133.81 kB) 3D models (4.77 MB)
EM/BEM	EM-24446-C36	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-56	12SL	Std	Omni-directional	5500	28	n/a	Tech specs (114.00 kB) 3D models (5.05 MB)
EM/BEM	EM-24447-C36	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-58.5	12SL	6dB/ Octave Ski Slope	Omni-directional	5800	-100.5	n/a	Tech specs (112.89 kB) 3D models (1.87 MB)
EM/BEM	EM-24468-C36	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-56	12SL	Damped Peak	Omni-directional	4800	28	n/a	Tech specs (113.95 kB) 3D models (5.05 MB)
EM/BEM	EM-25046-C36	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-58	12SL	Std (Screenless, Shifted Peak)	Omni-directional	6000	31	n/a	Tech specs (132.86 kB) 3D models (1.72 MB)
EM/BEM	EM-25047-C36	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-60	12SL	6dB/ Octave Ski Slope (Shifted Peak)	Omni-directional	6000	-99	n/a	Tech specs (180.93 kB) 3D models (1.72 MB)
EM/BEM	EM-25059-C30	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-52.5	12SL	12dB/ Octave Ski Slope (Shifted Peak)	Omni-directional	6000	-97	n/a	Tech specs (127.39 kB) 3D models (1.72 MB)
EM/BEM	EM-25346-C36	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-54	12SL	Std (Screenless, Shifted Peak)	Omni-directional	6000	28	n/a	Tech specs (128.64 kB) 3D models (2.62 MB)
EM/BEM	EM-25347-C36	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-55.5	12SL	6dB/ Octave Ski Slope (Shifted Peak)	Omni-directional	6000	-96	n/a	Tech specs (128.41 kB) 3D models (1.61 MB)
EM/BEM	EM-25359-C36	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-62	12SL	12dB/ Octave Ski Slope (Shifted Peak)	Omni-directional	6000	-96	n/a	Tech specs (123.83 kB) 3D models (2.62 MB)
EM/BEM	EM-25446-C36	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-58	12SL	Std (Screenless, Shifted Peak)	Omni-directional	6000	28	n/a	Tech specs (112.98 kB) 3D models (1.75 MB)
EM/BEM	EM-25447-C36	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-60	12SL	6dB/ Octave Ski Slope (Shifted Peak)	Omni-directional	6000	-99	n/a	Tech specs (112.55 kB) 3D models (1.71 MB)
EM/BEM	EM-26003-D10	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-52	12KP/ 12S	n/a	Omni-directional	5000/ 5500	28	n/a	Tech specs (108.81 kB) 3D models (4.29 MB)
EM/BEM	EM-26035-C45	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-52	12SL	Std	Omni-directional	5500	28	n/a	Tech specs (129.30 kB) 3D models (5.05 MB)
EM/BEM	EM-26036-C44	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-52	12SL	n/a	Omni-directional	5500	28	n/a	Tech specs (74.60 kB) 3D models (10.32 MB)
EM/BEM	EM-26091-C36	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-53.5	12JP, 0KP	Damped Peak	Omni-directional	4800	31	n/a	Tech specs (133.61 kB) 3D models (8.93 MB)
EM/BEM	EM-26177-000	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-58.5	12KP	6dB/ Octave Ski Slope	Omni-directional	6200	-98.5	n/a	Tech specs (127.20 kB) 3D models (1.17 MB)
EM/BEM	EM-26334-C53	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-52	12SL	Std	Omni-directional	5500	28	n/a	Tech specs (129.20 kB) 3D models (6.00 MB)
EM/BEM	EM-26360-C69	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-52	12B	n/a	Omni-directional	5000	28	n/a	Tech specs (104.59 kB) 3D models (3.06 MB)
EM/BEM	EM-26371-C68	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-52	12SL	Std	Omni-directional	5500	28	n/a	Tech specs (131.17 kB) 3D models (5.10 MB)
EM/BEM	EM-26372-C69	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-52	12SL	n/a	Omni-directional	5500	28	n/a	Tech specs (105.94 kB) 3D models (10.74 MB)
EM/BEM	EM-26378-C68	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-52	12B	Std	Omni-directional	5000	28	n/a	Tech specs (130.77 kB) 3D models (1.51 MB)
EM/BEM	EM-26424-D10	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-52	12KP	Std	Omni-directional	5000	28	n/a	Tech specs (128.92 kB) 3D models (1.31 MB)
EM/BEM	EM-26425-C79	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-52	12KP	n/a	Omni-directional	5000	28	n/a	Tech specs (64.70 kB) 3D models (3.02 MB)
EM/BEM	EM-26501-C83	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-53	3SL	Std	Omni-directional	4000-6000	31	n/a	Tech specs (130.48 kB) 3D models (4.97 MB)
EM/BEM	EM-26502-C84	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-53	3SL	n/a	Omni-directional	4000-6000	31	n/a	Tech specs (61.41 kB) 3D models (9.81 MB)
EM/BEM	EM-26505-C56	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-53	12N	Undamped Peak	Omni-directional	7000	28	n/a	Tech specs (121.72 kB) 3D models (2.48 MB)
EM/BEM	EM-26506-C56	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-54.5	12N	6dB/ Octave Ski Slope	Omni-directional	7000	28	n/a	Tech specs (130.30 kB) 3D models (1.85 MB)
EM/BEM	EM-26596-C36	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-52	12B	Std	Omni-directional	5000	28	n/a	Tech specs (129.89 kB) 3D models (1.94 MB)
EM/BEM	EM-26655-C53	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-52	12SL	Std	Omni-directional	5500	28	n/a	Tech specs (131.63 kB) 3D models (5.19 MB)
EM/BEM	EM-26699-D10	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-52	12SL	Std	Omni-directional	5500	28	n/a	Tech specs (130.69 kB) 3D models (4.93 MB)
EM/BEM	EM-26734-D34	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-53	0KP	n/a	Omni-directional	7000	28	n/a	Tech specs (109.36 kB) 3D models (8.66 MB)
EM/BEM	EM-26739-D34	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-53	0KP	Std, Shifted Peak	Omni-directional	7000	28	n/a	Tech specs (128.11 kB) 3D models (1.90 MB)
EM/BEM	EM-26802-D59	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-52	12KN	Undamped Peak	Omni-directional	7000	28	n/a	Tech specs (127.83 kB) 3D models (571.21 kB)
EM/BEM	EM-26814-S06	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-52	0KP	Std	Omni-directional	5000	28	n/a	Tech specs (131.40 kB) 3D models (1.28 MB)
EM/BEM	EM-26886-C36	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-52	12B	Std	Omni-directional	5000	28	n/a	Tech specs (128.95 kB) 3D models (651.57 kB)
EM/BEM	EM-27012-000	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-59.5	12B	6dB/ Octave Ski Slope, Damped	Omni-directional	4500	-97	n/a	Tech specs (131.29 kB) 3D models (1.88 MB)
EM/BEM	EM-27013-000	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-64.5	12B	12dB/ Octave Ski Slope, Damped	Omni-directional	5400	-97	n/a	Tech specs (131.57 kB) 3D models (1.62 MB)
EM/BEM	EM-27079-096	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-57	12BN	Undamped Peak	Omni-directional	7400	31	n/a	Tech specs (129.53 kB) 3D models (1.75 MB)
EM/BEM	EM-27513-000	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-54.5	12SL	Damped Peak	Omni-directional	4800	29.5	n/a	Tech specs (129.91 kB) 3D models (1.87 MB)
EM/BEM	EM-27580-C36	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-57	12SL	6dB/ Octave Ski Slope, Damped	Omni-directional	5500	28	n/a	Tech specs (130.41 kB) 3D models (5.05 MB)
EM/BEM	EM-27691-C14	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-57.5	12B	Undamped Peak	Omni-directional	5800	28	n/a	Tech specs (112.03 kB) 3D models (1.62 MB)
EM/BEM	EM-27692-C39	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-57.5	12KP	Damped Peak	Omni-directional	4000	28	n/a	Tech specs (112.78 kB) 3D models (1.27 MB)
EM/BEM	EM-27786-C56	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-52	12KP	Damped Peak	Omni-directional	4800	27	n/a	Tech specs (129.22 kB) 3D models (1.27 MB)
EM/BEM	EM-27900-C46	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-52	12B	Std	Omni-directional	5000	28	n/a	Tech specs (124.04 kB) 3D models (2.47 MB)
EM/BEM	EM-27901-C46	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-52	12KP	Std	Omni-directional	5000	28	n/a	Tech specs (123.01 kB) 3D models (2.38 MB)
EM/BEM	EM-27902-C38	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-52	12B/ 12KP	n/a	Omni-directional	5000	28	n/a	Tech specs (102.91 kB) 3D models (2.92 MB)
EM/BEM	EM-29932-096	3.61mm x 3.61mm x 2.21mm (.142in x .142in x .087in)	-56	12KP	Damped Peak	Omni-directional	4800	31	n/a	Tech specs (131.83 kB) 3D models (1.29 MB)

Series: EA – EK/EY – EL – EM/BEM – FG/BFG – MQM – QM – TD – TM/BTM – TO/BTO – TP

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	kHz Sensitivity	Port Location	Response	Directional	Peak Freq.	Noise max	Elec. Rolloff	Downloads
FG/BFG	FG-23329-P142	2.59 dia x 2.59mm (0.102 dia x 0.102in)	-53	0KN	Flat	Omni-directional	10000	30	n/a	Tech specs (104.00 kB) 3D models (1.67 MB)
FG/BFG	FG-23453-C05	2.59 dia x 2.59mm (0.102 dia x 0.102in)	-53	0KN	Low-End Roll-Off	Omni-directional	10000	32	n/a	Tech specs (131.63 kB) 3D models (1.43 MB)
FG/BFG	FG-23629-C36	2.59 dia x 2.59mm (0.102 dia x 0.102in)	-53	0KN	Flat	Omni-directional	10000	28	n/a	Tech specs (134.24 kB) 3D models (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	28	n/a	Tech specs (137.52 kB) 3D models (1.38 MB)
FG/BFG	FG-23653-C36	2.59 dia x 2.59mm (0.102 dia x 0.102in)	-53	0KN	Low-End Roll-Off	Omni-directional	10000	30	n/a	Tech specs (133.34 kB) 3D models (1.21 MB)
FG/BFG	FG-23742-C05	2.59 dia x 2.59mm (0.102 dia x 0.102in)	-63	0KN	Flat	Omni-directional	10000	36	n/a	Tech specs (131.47 kB) 3D models (841.73 kB)
FG/BFG	FG-23813-C36	2.59 dia x 2.59mm (0.102 dia x 0.102in)	-53	12S	Low-End Roll-Off	Omni-directional	10000	30	n/a	Tech specs (135.22 kB) 3D models (648.13 kB)
FG/BFG	FG-26107-XXX	2.59 dia x 2.59mm (0.102 dia x 0.102in)	-53	0KN	Flat	Omni-directional	10000	30	n/a	Tech specs (132.76 kB)
FG/BFG	FG-26108-C33	2.59 dia x 2.59mm (0.102 dia x 0.102in)	-53	0KN	Flat	Omni-directional	10000	30	n/a	Tech specs (71.95 kB) 3D models (1.90 MB)
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	-93	n/a	Tech specs (134.94 kB) 3D models (1.21 MB)
FG/BFG	FG-26480-C68	2.59 dia x 2.59mm (0.102 dia x 0.102in)	-53	0KN	Flat	Omni-directional	10000	30	n/a	Tech specs (134.73 kB)
FG/BFG	FG-26481-C69	2.59 dia x 2.59mm (0.102 dia x 0.102in)	-53	0KN	Flat	Omni-directional	10000	30	n/a	Tech specs (83.54 kB)
FG/BFG	FG-26640-A76	2.59 dia x 2.59mm (0.102 dia x 0.102in)	-53	0KN	Flat	Omni-directional	10000	30	n/a	Tech specs (140.43 kB) 3D models (1.65 MB)
FG/BFG	FG-26651-C36	2.59 dia x 2.59mm (0.102 dia x 0.102in)	-53	12S	Flat	Omni-directional	8500	28	n/a	Tech specs (136.37 kB) 3D models (1.36 MB)
FG/BFG	FG-26705-G13	2.59 dia x 2.59mm (0.102 dia x 0.102in)	-53	0KN	Low-End Roll-Off	Omni-directional	10000	32	n/a	Tech specs (133.74 kB) 3D models (1.21 MB)
FG/BFG	FG-26706-G13	2.59 dia x 2.59mm (0.102 dia x 0.102in)	-53	0KN	Low-End Roll-Off	Omni-directional	10000	32	n/a	Tech specs (58.60 kB) 3D models (1.90 MB)
FG/BFG	FG-26726-D17	2.59 dia x 2.59mm (0.102 dia x 0.102in)	-53	12S	Flat	Omni-directional	10000	28	n/a	Tech specs (86.26 kB) 3D models (2.84 MB)
FG/BFG	FG-26771-G10	2.59 dia x 2.59mm (0.102 dia x 0.102in)	-53	0KN	Flat	Omni-directional	10000	28	n/a
FG/BFG	FG-26829-C36	2.59 dia x 2.59mm (0.102 dia x 0.102in)	-55	12S	Damped	Omni-directional	6000	28	n/a	Tech specs (136.47 kB) 3D models (1.13 MB)

Series: EA – EK/EY – EL – EM/BEM – FG/BFG – MQM – QM – TD – TM/BTM – TO/BTO – TP

MQM series

The MQM is the smallest and most production friendly hearing instrument microphone offered. Utilizing Knowles MEMs technology, the MQM allows for efficient reflow soldering assembly. The MQM offers unmatched performance in reliability and environmental stability. The MQM also offers best in class vibration sensitivity performance. It is ideal for matched omni-directional pair applications as well as applications where the smallest possible size is required.

Features

• Reflow soldering compatible
• Low vibration sensitivity
• Zero-height PCB mount or traditional tubed options
• Smallest MEMs hearing instrument microphone available

Product Families	Model ID	Dimensions	kHz Sensitivity	Port Location	Response	Directional	Peak Freq.	Noise max	Elec. Rolloff	Downloads
MQM	MQM-31692-000	3.35mm x 2.50mm x 0.96mm (.131in x .098in x .038in)	-58.5	12JPN	Std	Omni-directional	14000	30	na	Tech specs (201.10 kB) 3D models (400.90 kB)

Product Families

Model ID

Dimensions

kHz Sensitivity

Port Location

Response

Directional

Peak Freq.

Noise max

Elec. Rolloff

Downloads

MQM

MQM-31692-000

3.35mm x 2.50mm x 0.96mm (.131in x .098in x .038in)

-58.5

12JPN

Std

Omni-directional

14000

Tech specs
(201.10 kB)

3D models
(400.90 kB)

Series: EA – EK/EY – EL – EM/BEM – FG/BFG – MQM – QM – TD – TM/BTM – TO/BTO – TP

QM series

The QM is the most production friendly hearing instrument microphone offered. Utilizing Knowles MEMs technology, the QM allows for efficient reflow soldering assembly. The QM offers unmatched performance in reliability and environmental stability. The QM also offers best in class vibration sensitivity performance. It is ideal for matched omni-directional pair applications.

Features

• Reflow soldering compatible
• Low vibration sensitivity
• Zero-height PCB mount or traditional tubed options
• Highest SNR MEMs hearing instrument microphone available

Product Families	Model ID	Dimensions	kHz Sensitivity	Port Location	Response	Directional	Peak Freq.	Noise max	Elec. Rolloff	Downloads
QM	QM-31353-S27	4.00mm x 3.00mm x 1.17mm (.157in x .118in x .046in)	-56.5	12JP	Std	Omni-directional	12000	30	na	Tech specs (216.47 kB) 3D models (2.27 MB)

Product Families

Model ID

Dimensions

kHz Sensitivity

Port Location

Response

Directional

Peak Freq.

Noise max

Elec. Rolloff

Downloads

QM-31353-S27

4.00mm x 3.00mm x 1.17mm (.157in x .118in x .046in)

-56.5

12JP

Std

Omni-directional

12000

Tech specs
(216.47 kB)

3D models
(2.27 MB)

Series: EA – EK/EY – EL – EM/BEM – FG/BFG – MQM – QM – TD – TM/BTM – TO/BTO – TP

TD series

The uni-directional TD series microphone provides directional performance in a thin space saving design. The module uses two sound ports and a single diaphragm to produce a supercardiod polar pattern. Various time delays are available to customize the polar pattern. Also available as part of the TP series uni-directional / omni-directional module.

Features

• For Power BTE, Standard BTE, Full-shell ITE, and Half-shell ITE applications
• Improved RFI and EMI suppression
• Two port configuration
• Various port locations
• Custom tube diameters and lengths available

Product Families	Model ID	Dimensions	kHz Sensitivity	Port Location	Response	Directional	Peak Freq.	Noise max	Elec. Rolloff	Downloads
TD	TD-24604-000	3.61mm x 3.61mm x 1.30mm (.142in x .142in x .051in)	-56.5	12C, 12K	Std	Uni-directional	9500	29	n/a	Tech specs (110.99 kB) 3D models (1.25 MB)
TD	TD-24607-000	3.61mm x 3.61mm x 1.30mm (.142in x .142in x .051in)	-56.5	12B, 10C	Std	Uni-directional	9500	29	n/a	Tech specs (127.47 kB) 3D models (1.41 MB)
TD	TD-24610-000	3.61mm x 3.61mm x 1.30mm (.142in x .142in x .051in)	-57.5	12S/0KP	Std	Uni-directional	3000	-98	n/a	Tech specs (139.68 kB) 3D models (5.11 MB)
TD	TD-24618-000	3.61mm x 3.61mm x 1.30mm (.142in x .142in x .051in)	-56.5	12S, 10C	Std	Uni-directional	9500	29	n/a	Tech specs (128.11 kB) 3D models (1.55 MB)
TD	TD-24621-000	3.61mm x 3.61mm x 1.30mm (.142in x .142in x .051in)	-56.5	2B, 10C	Std	Uni-directional	9500	29	n/a	Tech specs (127.61 kB) 3D models (668.22 kB)
TD	TD-24623-000	3.61mm x 3.61mm x 1.30mm (.142in x .142in x .051in)	-56.5	12S, 10C	Std	Uni-directional	9500	29	n/a

Series: EA – EK/EY – EL – EM/BEM – FG/BFG – MQM – QM – TD – TM/BTM – TO/BTO – TP

TM/BTM series

The TM provides the best combination of performance and size. It boasts performance comparable to the standard EM series, in a package 20% smaller. The TM can also be used in directional applications as a matched omni-directional pair. The BTM is an improved version of the TM microphone. It offers enhanced PFA performance, as well as power-on reset and an electrical high pass filter. The BTM 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 suppression
• Undamped, screen damped, and internally damped responses
• Numerous port locations and a wide range of frequency responses available
• Extended housing TM microphones also available improving sensitivity/noise in the same footprint
• Custom corner frequencies achieved through an electrical high pass filter optimize noise performance at low frequencies for demanding matching and directional applications
• BTM offers improved Power Feedthrough Attenuation, improved settling time, and an electrical high pass filter

Product Families	Model ID	Dimensions	kHz Sensitivity	Port Location	Response	Directional	Peak Freq.	Noise max	Elec. Rolloff	Downloads
TM/BTM	BTM-23546-D47	3.57mm x 3.57mm x 1.70mm (.1405in x .1405in x .067in)	-55.5	12B	Std	Omni-directional	5500	31	180	Tech specs (129.19 kB) 3D models (1.47 MB)
TM/BTM	BTM-26902-B01	3.57mm x 3.57mm x 1.70mm (.1405in x .1405in x .067in)	-55.5	12KN	Undamped	Omni-directional	6400	29	180	Tech specs (126.57 kB)
TM/BTM	TM-23546-C36	3.61mm x 3.61mm x 1.30mm (.142in x .142in x .051in)	-54.5	12B	Std	Omni-directional	5000	31	n/a	Tech specs (127.67 kB) 3D models (790.32 kB)
TM/BTM	TM-23547-C36	3.61mm x 3.61mm x 1.30mm (.142in x .142in x .051in)	-58.5	12B	6dB	Omni-directional	6300	-98.5	n/a	Tech specs (127.22 kB) 3D models (790.32 kB)
TM/BTM	TM-23568-C36	3.61mm x 3.61mm x 1.30mm (.142in x .142in x .051in)	-56	12B	Damped	Omni-directional	4800	32.5	n/a	Tech specs (128.06 kB) 3D models (2.50 MB)
TM/BTM	TM-24546-C36	3.61mm x 3.61mm x 1.30mm (.142in x .142in x .051in)	-54.5	12SL	Std	Omni-directional	6400	29	n/a	Tech specs (155.06 kB) 3D models (1.10 MB)
TM/BTM	TM-24547-C36	3.61mm x 3.61mm x 1.30mm (.142in x .142in x .051in)	-58.5	12SL	6dB	Omni-directional	7300	-98.5	n/a	Tech specs (129.10 kB) 3D models (2.14 MB)
TM/BTM	TM-24568-000	3.61mm x 3.61mm x 1.30mm (.142in x .142in x .051in)	-54.5	12SL	Damped	Omni-directional	5800	29	n/a	Tech specs (131.19 kB) 3D models (6.13 MB)

Series: EA – EK/EY – EL – EM/BEM – FG/BFG – MQM – QM – TD – TM/BTM – TO/BTO – TP

TO/BTO series

The TO is the thinnest omni-directional microphone offered. Its small size is perfect for all applications, especially where space is an issue. The TO can also be used in directional applications as either a matched omni-directional pair, or in the TP series uni-directional / omni-directional pair. The BTO is an improved version of the TO microphone. It offers enhanced PFA performance, as well as power-on reset and an electrical high pass filter. The BTO is ideal in directional applications as a matched omni-directional pair.

Features

• Improved RFI and EMI suppression
• Undamped, screen damped, and internally damped responses
• Numerous port locations
• Custom tube diameters and lengths available
• Custom corner frequencies achieved through an electrical high pass filter optimizes noise performance at low frequencies for demanding matching and directional applications
• BTO offers improved Power Feedthrough Attenuation, improved settling time, and an electrical high pass filter

Product Families	Model ID	Dimensions	kHz Sensitivity	Port Location	Response	Directional	Peak Freq.	Noise max	Elec. Rolloff	Downloads
TO/BTO	TO-24603-000	3.61mm x 3.61mm x 1.30mm (.142in x .142in x .051in)	-56.5	12N	Std	Omni-directional	9500	29	n/a	Tech specs (127.45 kB) 3D models (1.22 MB)
TO/BTO	TO-24606-000	3.61mm x 3.61mm x 1.30mm (.142in x .142in x .051in)	-56.5	2N	Std	Omni-directional	9500	29	n/a	Tech specs (125.68 kB) 3D models (1.53 MB)
TO/BTO	TO-24609-000	3.61mm x 3.61mm x 1.30mm (.142in x .142in x .051in)	-56	12C	Std	Omni-directional	7000	29	n/a	Tech specs (128.67 kB)
TO/BTO	TO-24611-000	3.61mm x 3.61mm x 1.30mm (.142in x .142in x .051in)	-56	12C	Std	Omni-directional	5800	29	n/a	Tech specs (128.39 kB) 3D models (570.88 kB)
TO/BTO	TO-24614-000	3.61mm x 3.61mm x 1.30mm (.142in x .142in x .051in)	-56.5	12N	Std	Omni-directional	9500	29	n/a	Tech specs (125.19 kB) 3D models (1.22 MB)
TO/BTO	TO-24622-000	3.61mm x 3.61mm x 1.30mm (.142in x .142in x .051in)	-56.5	2N	Std	Omni-directional	9500	29	n/a
TO/BTO	TO-30022-000	3.61mm x 3.61mm x 1.30mm (.142in x .142in x .051in)	-54	12N	Std (Increased Sens)	Omni-directional	9500	27	70Hz	Tech specs (175.15 kB) 3D models (2.58 MB)
TO/BTO	TO-30023-000	3.61mm x 3.61mm x 1.30mm (.142in x .142in x .051in)	-54	12N	Std (Increased Sens)	Omni-directional	9500	27	70Hz	Tech specs (127.24 kB) 3D models (2.21 MB)
TO/BTO	TO-30031-000	3.61mm x 3.61mm x 1.30mm (.142in x .142in x .051in)	-56.5	12C	Std	Omni-directional	7200	29	n/a	Tech specs (128.83 kB) 3D models (1.36 MB)
TO/BTO	TO-30034-000	3.61mm x 3.61mm x 1.30mm (.142in x .142in x .051in)	-54	12C	Std (Increased Sens)	Omni-directional	5700	28.5	70Hz	Tech specs (178.34 kB) 3D models (2.61 MB)
TO/BTO	TO-30043-000	3.61mm x 3.61mm x 1.30mm (.142in x .142in x .051in)	-54	12C	Std (Increased Sens)	Omni-directional	5700	28.5	70Hz	Tech specs (121.62 kB) 3D models (1.41 MB)
TO/BTO	TO-30047-D60	3.61mm x 3.61mm x 1.30mm (.142in x .142in x .051in)	-56	12C	Std	Omni-directional	5800	29	n/a	Tech specs (181.45 kB) 3D models (1.15 MB)
TO/BTO	TO-30079-000	3.61mm x 3.61mm x 1.30mm (.142in x .142in x .051in)	-54	11C	Std (Increased Sens)	Omni-directional	4500-7500	27	70Hz	Tech specs (109.97 kB) 3D models (2.90 MB)

Series: EA – EK/EY – EL – EM/BEM – FG/BFG – MQM – QM – TD – TM/BTM – TO/BTO – TP

TP series

The uni-directional / omni-directional microphone pair module provides a space saving solution for directional applications. The module uses only two sound ports (versus three sound ports needed for traditional stand-alone omni-plus-directional mics), reducing mounting time and minimizing any acoustic tubing required. The pair also shares a common power and ground connection, requiring only four connecting lead wires (V+, Omni signal, Directional signal, Ground) as opposed to six lead wires needed for traditional uni-directional plus omni-directional microphone applications. Also available in the individual TD series uni-directional and TO series omni-directional microphones.

Features

• Only four lead wire connections needed
• Improved RFI and EMI suppression
• Two port configuration
• Various port locations
• Custom tube diameters and lengths available

Product Families	Model ID	Dimensions	kHz Sensitivity	Port Location	Response	Directional	Peak Freq.	Noise max	Elec. Rolloff	Downloads
TP	TP-24605-000	3.61mm x 3.61mm x 2.59mm (.142in x .142in x .103in)	-56.5	12S/12K	Std	Uni-directional	8500	29	n/a	Tech specs (139.33 kB) 3D models (6.49 MB)
TP	TP-24612-000	3.61mm x 3.61mm x 2.59mm (.142in x .142in x .103in)	-57	12B	Std	Uni-directional	8500	29	n/a	Tech specs (134.24 kB) 3D models (7.52 MB)
TP	TP-24617-000	3.61mm x 3.61mm x 2.59mm (.142in x .142in x .103in)	-57	12S/9S	Std	Uni-directional	8500	29	n/a	Tech specs (132.87 kB) 3D models (7.27 MB)
TP	TP-24620-000	3.61mm x 3.61mm x 2.59mm (.142in x .142in x .103in)	-56	3B/9S	Std	Uni-directional	5800	29	n/a	Tech specs (138.56 kB) 3D models (7.25 MB)
TP	TP-30004-000	3.61mm x 3.61mm x 2.59mm (.142in x .142in x .103in)	-56.5	12S/12K	Std	Uni-directional	8500	29	n/a	Tech specs (138.98 kB) 3D models (6.49 MB)

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