As a leading developer of acoustic components for commercial and industrial applications we offer a wide range of microphones manufactured using state of the art technology. Each unit features an optimum combination of performance, reliability and clarity giving the flexibility to meet specific customer applications.
We are also pleased to offer custom developed microphone solutions where we are happy to work with your engineers to provide the accuracy and definition that is required to meet your individual requirements.
Microphones are available in SMD surface mount, with or without pins or alternatively with a leadwire which can be to your required length. Leadwires can also be fitted with a specific connector and with other components in line or with rubber holders.
Capacitors can also be built into
the microphone thereby reducing costs in assembly and assisting with noise
reduction.
| Product Selection Guide - SMD Silicon Microphones | ||||||||
| Style |
Model
No. |
Sensitivity
(dB) |
Operting
Voltage Range (V) |
Output
Impedance (R) |
Current
Consumption (µA) |
Frequency |
S/N
Ratio (dB) |
View |
 |
-22 ± 3
|
1.5 ~ 3.6
|
<100
|
<350
|
100 ~ 16000
|
>58
|
 |
|
|
-27 ± 3
|
1.5 ~ 3.6
|
<100
|
<350
|
100 ~ 16000
|
>58
|
|
||
|
-32 ± 3
|
1.5 ~ 3.6
|
<100
|
<350
|
100 ~ 16000
|
>58
|
|
||
|
-42 ± 3
|
1.5 ~ 3.6
|
<100
|
<350
|
100 ~ 16000
|
>58
|
|
||
 |
-22 ± 3
|
1.5 ~ 3.6
|
<100
|
<350
|
100 ~ 16000
|
>58
|
|
|
|
-27 ± 3
|
1.5 ~ 3.6
|
<100
|
<350
|
100 ~ 16000
|
>58
|
|
||
|
-32 ± 3
|
1.5 ~ 3.6
|
<100
|
<350
|
100 ~ 16000
|
>58
|
|
||
|
- 42 ± 3
|
1.5 ~ 3.6
|
<100
|
<350
|
100 ~ 16000
|
>58
|
|
||
|
-42 ± 3
|
1.5 ~ 3.6
|
<100
|
<150
|
100 ~ 16000
|
>57
|
|
|
| Product Selection Guide - SMD Electret Microphones | |||||||||
| Style |
Model
No. |
Directivity
|
Sensitivity
(dB) |
Rated
Voltage (V) |
Maximum
Operating Voltage (V) |
Current |
Frequency
Range (Hz) |
S/N
Ratio (db) |
View
Datasheet |
 |
Omnidirectional
|
-44 ± 3
|
3
|
10
|
<0.5
|
50 ~ 16000
|
>60
|
|
|
|
Omnidirectional
|
-44 ± 3
|
2
|
10
|
<0.5
|
50 ~ 16000
|
>60
|
|
||
 |
Omnidirectional
|
-44 ± 3
|
3
|
10
|
<0.5
|
50 ~ 16000
|
>60
|
|
|
|
Omnidirectional
|
-44 ± 3
|
2
|
10
|
<0.5
|
50 ~ 16000
|
>60
|
|
||
|
Product Selection Guide - Electret Microphones |
|||||||
|---|---|---|---|---|---|---|---|
| Model No. |
Dia(D) x Height(H) (mm) |
Type or Directivity |
Sensitivity Range (0 dB=1V/Pa, 1KHz) |
Supply Voltage (VDC) |
Max. Current (uA) |
External Resistor (KOhm) |
Electret Type |
| NT618L | 6.0 x 1.8 | Noise Cancelling | -46 ~ -50 | 2.0 | 500 | 2.2 | Front |
| NB620L | 6.0 x 2.0 | Noise Cancelling | -46 ~ -50 | 2.0 | 500 | 2.2 | Back |
| NB622L | 6.0 x 2.2 | Noise Cancelling | -46 ~ -50 | 2.0 | 500 | 2.2 | Back |
| NB625L | 6.0 x 2.5 | Noise Cancelling | -46 ~ -50 | 2.0 | 500 | 2.2 | Back |
| NB627L | 6.0 x 2.7 | Noise Cancelling | -46 ~ -50 | 2.0 | 500 | 2.2 | Back |
| NB965L | 9.6 x 5.0 | Noise Cancelling | -46 ~ -50 | 1.5 | 500 | 0.68 | Back |
| OT618L | 6.0 x 1.8 | Omni Directional | -40 ~ -46 | 2.0 | 500 | 2.2 | Front |
| OT618P | 6.0 x 1.8 | Omni Directional | -40 ~ -46 | 2.0 | 500 | 2.2 | Front |
| OT618S | 6.0 x 1.8 | Omni Directional | -40 ~ -46 | 2.0 | 500 | 2.2 | Front |
| OB620L | 6.0 x 2.0 | Omni Directional | -40 ~ -46 | 2.0 | 500 | 2.2 | Back |
| OB620P | 6.0 x 2.0 | Omni Directional | -40 ~ -46 | 2.0 | 500 | 2.2 | Back |
| OB620S | 6.0 x 2.0 | Omni Directional | -40 ~ -46 | 2.0 | 500 | 2.2 | Back |
| OB622L | 6.0 x 2.2 | Omni Directional | -40 ~ -46 | 2.0 | 500 | 2.2 | Back |
| OB622P | 6.0 x 2.2 | Omni Directional | -40 ~ -46 | 2.0 | 500 | 2.2 | Back |
| OB622S | 6.0 x 2.2 | Omni Directional | -40 ~ -46 | 2.0 | 500 | 2.2 | Back |
| OB625L | 6.0 x 2.5 | Omni Directional | -40 ~ -46 | 2.0 | 500 | 2.2 | Back |
| OB625P | 6.0 x 2.5 | Omni Directional | -40 ~ -46 | 2.0 | 500 | 2.2 | Back |
| OB625S | 6.0 x 2.5 | Omni Directional | -40 ~ -46 | 2.0 | 500 | 2.2 | Back |
| OB627L | 6.0 x 2.7 | Omni Directional | -40 ~ -46 | 2.0 | 500 | 2.2 | Back |
| OB627P | 6.0 x 2.7 | Omni Directional | -40 ~ -46 | 2.0 | 500 | 2.2 | Back |
| OB627S | 6.0 x 2.7 | Omni Directional | -40 ~ -46 | 2.0 | 500 | 2.2 | Back |
| OF635L | 6.0 x 3.5 | Omni Directional | -38 ~ -48 | 2.0 | 500 | 2.2 | Foil |
| OF635P | 6.0 x 3.5 | Omni Directional | -38 ~ -48 | 2.0 | 500 | 2.2 | Foil |
| OF946LH | 9.4 x 6.4 | Omni Directional | -38 ~ -48 | 4.5 | 800 | 1.0 | Foil |
| OF946PH | 9.4 x 6.4 | Omni Directional | -38 ~ -48 | 4.5 | 800 | 1.0 | Foil |
| OF946L | 9.4 x 6.4 | Omni Directional | -38 ~ -48 | 1.5 | 300 | 1.0 | Foil |
| OF946P | 9.4 x 6.4 | Omni Directional | -38 ~ -48 | 1.5 | 300 | 1.0 | Foil |
| OB964P | 9.6 x 4.5 | Omni Directional | -38 ~ -46 | 1.5 | 500 | 1.5 | Back |
| OF964P | 9.6 x 4.5 | Omni Directional | -38 ~ -46 | 1.5 | 500 | 1.5 | Foil |
| OF966LH | 9.6 x 6.6 | Omni Directional | -38 ~ -48 | 4.5 | 800 | 2.2 | Foil |
| OF966PH | 9.6 x 6.6 | Omni Directional | -38 ~ -48 | 4.5 | 800 | 2.2 | Foil |
| OF966L | 9.6 x 6.6 | Omni Directional | -38 ~ -48 | 1.5 | 300 | 1.5 | Foil |
| OF966P | 9.6 x 6.6 | Omni Directional | -38 ~ -48 | 1.5 | 300 | 1.5 | Foil |
| UB627L | 6.0 x 2.7 | Uni Directional | -46 ~ -50 | 2.0 | 500 | 2.2 | Back |
| UB965L | 9.6 x 5.0 | Uni Directional | -46 ~ -50 | 1.5 | 500 | 0.68 | Back |
Unit of Sensitivity
-
We use "Pascal (Pa)" as the unit of sensitivity in all of our specifications instead of "u bar" "Pascal" is per the recommendation of I.E.C. (International Electrotechnical Commission) and is currently the most commonly accepted. In some intances "ubar" is still used.
-
To convert "ubar" to "Pascal", simply add 20dB. Be sure you are adding a positive number to a negative number
e.g. –62dB(0dB=1V/u bar)= -42(0dB=1V/pa)
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