CMC-9745-37L100

Overview

The CMC-9745-37L100 is a unidirectional electret microphone manufactured by Same Sky. It operates at a supply voltage of 1.5 VDC and features a sensitivity of -37 dB. The component has an impedance of 2 ohms and a current rating of 400 uA. Its physical dimensions include a diameter of 9.7 mm and a depth of 4.5 mm. The device utilizes solder pads for termination.

Feature Summary

• Unidirectional acoustic design for focused sound capture
• Low power consumption suitable for battery-operated devices
• Compact cylindrical form factor for space-constrained applications

Applications

• Portable electronic audio recording devices
• Consumer electronics with limited power budgets
• Voice input modules in compact hardware

Procurement Notes

Verify the specific suffix against official documentation to confirm exact sensitivity and electrical characteristics, as variations may exist within the series. Ensure compatibility with existing PCB footprints and soldering processes. Cross-reference the manufacturer's latest datasheet for any updates on RoHS compliance or material declarations prior to finalizing procurement orders.

Selection Notes

Select this component when a low-profile, unidirectional microphone is required for 1.5V systems. Consider the 2-ohm impedance and 400 uA current draw during circuit design. Evaluate the 9.7 mm diameter constraint against available board space. Confirm that the -37 dB sensitivity meets the target signal-to-noise requirements for the intended application environment.

Part Context

This part belongs to the CMC series of microphones from Same Sky. The series offers various configurations tailored for different acoustic and spatial requirements in consumer electronics. This specific model represents a standard unidirectional option within the lineup.

Replacement Considerations

Consult official substitution guides for verified equivalents. Generic replacements may differ in sensitivity, impedance, or physical dimensions.