TO38-31018-B20

Shape:	Square
Series:	TO
Packaging:	Tray
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Type:	Electret Condenser
Output Type:	Analog
Direction:	Omnidirectional
Frequency Range:	80Hz ~ 10kHz
Sensitivity:	-64.5dB ±3dB @ 74dB SPL
S/N Ratio:	--
Impedance:	4.4 kOhms
Voltage Range:	0.9V ~ 1.6V
Current - Supply:	29µA
Port Location:	Side
Termination:	Solder Pads
Size / Dimension:	0.141" L x 0.141" W (3.57mm x 3.57mm)
Height (Max):	0.053" (1.35mm)

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Introduction

TO38-31018-B20 is a type of microphone. It is a small high-sensitivity condenser microphone when compares to other types of microphone. The tiny size and high sensitivity make it suitable for various applications. This article discusses the application field and working principle of TO38-31018-B20 in detail.

Application Field of TO38-31018-B20

The small size and high sensitivity of TO38-31018-B20 allows it to be widely used in various applications. Firstly, it is suitable for recording. This type of microphone is often used in small studios or home recording. Due to its small size, it can be easily concealed and therefore, it is perfect for recording discreetly. Secondly, it can be used in applications that require high frequency response. The high sensitivity of TO38-31018-B20 allows it to pick up even the highest frequency sound. Thirdly, it is ideal for speech recognition applications. It can pick up subtle nuance in voice and thus result in accurately recognition.

Working Principle of TO38-31018-B20

TO38-31018-B20 works on the basic principle of electroacoustic transducers. It consists of a diaphragm and a backplate. When a sound wave strikes the diaphragm, it vibrates due to the air pressure difference and consequently, air gap between diaphragm and backplate changes. This air gap variation will cause a change in capacitance and an electrical signal will be produced. This electrical signal will be amplified and sent to recorder or to various other applications as required.

Conclusion

TO38-31018-B20 is a small high-sensitivity condenser microphone. Its small size and high sensitivity make it suitable for various applications such as recording, high frequency response and speech recognition. It works on the principle of electroacoustic transducers and produces an electrical signal when a sound wave strikes the diaphragm. All these features make it an ideal choice for various application.

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