The KECG2742PBL-A from Kingstate is an electret condenser microphone. An electret microphone is a type of electrostatic capacitor based microphone, which eliminates the need for a polarizing power supply by using a permanently charged material.
- Sensitivity is -42dB
- Operating voltage is 2VDC
- Impedance is 2.2Kohm
- Rated voltage is 10VDC
- Sensitivity reduction is -3dB at f=1KHz, 1Pa, Vs=2.0VDC. to 1.5VDC
- Frequency range from 20Hz to 20KHz
- Maximum current consumption is 0.5mA at Vs=2.0VDC, RL=2.2Kohm
- Signal to noise ratio is 58dBA
- Omni directional directivity
- 6mm x 2.7mm dimension
音频, 消费电子产品, 便携式器材