'This specification is applied to back electret condenser microphone unit ModelEM-4015MP
Measuring conditions : Temperature 20℃+2℃,humidity60%～80%.
Appearance and dimension: as per Fig.1
Electrical Specification :
4- 1) Directional Characteristic: Omni-Directional
4- 2) Sensitivity Range -38+2dB at 1KHZ (0 dB=1 V/uba) RL=2.2 KΩ VCC=2.0 V
4- 3) Impedance 2.2 KΩ+30% at 1KHZ (RL=2.2 KΩ)
4- 4) Frequency Response As Fig.3
4- 5) S/N ratio More than 58 dB
4- 6) Max Input Sound Level 115 dB S. P. L
4- 7) Operating Voltage 3.0V (1.1～10V)
4- 8) Circuit Current 400μA max (VCC=2.0V)
4- 9) Terminal Locations As per Fig.1
4-10) Electrical Circuit As per Fig.2
4-11) Capacitor 33pf
4-12) Storage Temperature -20℃～+60℃
4-13) Operating Temperature -10℃～+55℃
Reliability Tests:'