The CMC-9745-37T3 is an electret condenser microphone designed for audio capture applications requiring unidirectional pickup and high signal quality. It features a sensitivity of -37 dB (typical) at 1 kHz and 1 Pa, with an output impedance of 2.0 kO (typical), operating at a standard voltage of 1.5 Vdc and supporting up to 9 Vdc maximum. The microphone delivers a signal-to-noise ratio of 72 dBA and operates across a frequency range of 100 Hz to 12 kHz, with a compact aluminum housing measuring 9.7 × 4.5 mm and weighing 0.8 g. Its low current consumption of 0.4 mA maximum and wide operating temperature range of -20°C to +70°C make it suitable for portable audio devices, voice recording, and communication systems where space and power efficiency are important.