Product 109907. Condenser microphone electret microphone capsule WM-034CY (EK1). A good quality electret microphone capsule WM-034CY + filter capacitor at the output, removing the filter capacitor frequency response is as shown and is then perfectly suited for music playback, (if only in speech mode leave the hook). The value of the front resistor can be 2.2k - 10k, depending on the operating voltage, eg 9VDC with a voltage of 8.2 - 10k, 4.5V then 2.2k, DC separation capacitor 100nF - 2.2uF. Suitable for speech and music playback. Sensitivity -42dB +/- 3dB if 4.5V / 2.2k. Diameter 9.7mm height 6.7mm.
Microcapsule frequency response and other images larger.
