Primo# EM-100 (H). Package of 20. Primo electret microphone made for non directional applications features 100-10,000Hz frequency response, 2V to 10VDC standard operating voltage. Size in Diameter: 10mm (0.39") Height: 5mm (0.20") Sensistivity -44dB@1kHz, S/N Ratio 60dB, current 650uA max (Vcc=6V), Impedance 1Kohm (1KHz).
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