CUI Devices CMC-9745-44P Analog Microphone Condenser 3V ~ 10V Omnidirectional

The CUI Devices CMC-9745-44P is an analog electret condenser microphone designed for high-fidelity audio capture in compact electronic systems. It features an omnidirectional pickup pattern, allowing it to detect sound from all directions, making it ideal for voice recognition, audio sensing, and general-purpose sound recording applications. The microphone operates within a wide frequency range of 20 Hz to 20 kHz, ensuring accurate reproduction of both low and high-frequency sounds.

This microphone delivers a sensitivity of -44 dB ±3 dB at 94 dB SPL and a signal-to-noise ratio of 60 dB, providing clear audio output with minimal background noise. It supports an operating voltage range of 3V to 10V and has a low current consumption of just 500 µA, making it suitable for battery-powered and energy-efficient devices. The output impedance is rated at 2.2 kΩ, and the analog output can be easily interfaced with audio amplifiers or microcontroller ADCs.

Physically, the CMC-9745-44P has a compact circular form factor with a diameter of 9.7 mm and a height of 4.65 mm. It features top port audio entry and PC pin terminations for secure through-hole mounting. Its small size and reliable performance make it a popular choice for embedded systems, consumer electronics, and DIY audio projects.