CMC-9745-130T

Overview

The CMC-9745-130T is a unidirectional electret microphone manufactured by Same Sky. It operates at a supply voltage of 1.5 VDC and features a sensitivity of -130 dB. The device has an impedance of 2 ohms and a maximum current rating of 400 uA. Physical dimensions include a diameter of 9.7 mm and a depth of 4.5 mm. It utilizes solder pads for termination.

Feature Summary

• Unidirectional acoustic design
• Low voltage operation capability
• Compact cylindrical form factor

Applications

• Portable electronic devices
• Consumer audio equipment
• Voice recording modules

Procurement Notes

Verify the specific model suffix against official manufacturer documentation to confirm exact sensitivity and impedance ratings. Ensure that the solder pad termination type matches the target PCB layout requirements. Confirm RoHS compliance status through the latest datasheet before finalizing component selection.

Selection Notes

Select this component based on its low operating voltage and compact physical profile suitable for space-constrained designs. Evaluate the -130 dB sensitivity against system noise floor requirements. Verify compatibility with the intended 1.5 VDC power supply architecture and interface circuitry.

Part Context

This part belongs to the CMC series of microphones from Same Sky, formerly CUI Devices. The series offers various sensitivity options within a standardized 9.7 mm diameter package. This specific model provides high sensitivity for applications requiring strong signal output from small form factors.

Replacement Considerations

Consult official cross-reference lists for verified substitutes. Generic replacements may differ in sensitivity or impedance specifications.