CMC-9745-44P

Overview

The CMC-9745-44P is an omnidirectional electret condenser microphone manufactured by Same Sky. It operates within a voltage range of 3 V to 10 V and draws a supply current of 500 µA. The device features a sensitivity of -44 dB ±3 dB at 94 dB SPL and an impedance of 2.2 kOhms. Its frequency response spans from 20 Hz to 20 kHz. Physically, the microphone has a diameter of 9.70 mm (0.382 inches) and a maximum height of 4.65 mm (0.183 inches). It utilizes PCB pin termination for mounting.

Feature Summary

• Omnidirectional acoustic design for uniform sound capture
• Electret condenser transducer technology
• Analog output signal interface

Applications

• General purpose audio recording devices
• Voice recognition systems
• Consumer electronic equipment

Procurement Notes

Verify the manufacturer part number CMC-9745-44P against official Same Sky documentation to confirm specifications. Ensure compatibility with the intended operating voltage range of 3 V to 10 V. Confirm that the PCB pin termination matches the target circuit board layout. Check for RoHS compliance status if required by project regulations.

Selection Notes

Select this component when an omnidirectional pickup pattern is required for general audio applications. The 2.2 kOhm impedance and analog output are suitable for standard preamplifier interfaces. Consider the physical dimensions of 9.70 mm diameter and 4.65 mm height for enclosure constraints. Verify that the 500 µA supply current fits the power budget of the host system.

Part Context

This microphone belongs to the CMC series produced by Same Sky, formerly known as CUI Devices. The series includes various microphone configurations with different directional patterns and sensitivities. The CMC-9745-44P specifically represents an omnidirectional variant within this product line.

Replacement Considerations

Consult official Same Sky documentation for verified substitute part numbers. Cross-referencing requires matching electrical parameters such as sensitivity, impedance, and operating voltage.