Omnidirectional Back Electret Condenser Microphone Cartridge Series: WM-61A WM-61 B (pin type) Microphone Cartridges I Features G Small microphones for gener al use G Back electret type designed for high resistance to vibrations, high signal-to-noise ratio G High sensitivity type G Microphone with pins for flexible PCB (WM-61B type) I Sensitivity Vs = 2.
0V RL = 2.
2kΩ –35 ± 4dB I Specifications Sensitivity Impedance Directivity Frequency Max.
operation voltage Standard operation voltage Current consumption Sensitivity reduction S/N ratio –35±4dB (0db = 1V/pa, 1kHz) Less than 2.
2 k Ω Omnidirectional 20–20,000 Hz 10V 2V Max.
0.
5 mA Within –3 dB at 1.
5V More than 62 dB I Typical Frequenc...

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