CMC-9745-37T3

Overview

The CMC-9745-37T3 is a unidirectional electret microphone manufactured by Same Sky. It operates at a voltage of 1.5 VDC and features a sensitivity of -37 dB. The device 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 component utilizes solder pads for termination.

Feature Summary

• Unidirectional acoustic design
• Low power consumption operation
• Solder pad termination

Applications

• Audio input devices
• Consumer electronics
• Voice recognition systems

Procurement Notes

Verify the specific manufacturer designation, as the brand history involves transitions between CUI Devices and Same Sky. Confirm that the datasheet aligns with the exact part number suffix to ensure correct sensitivity and electrical characteristics. Cross-reference the RoHS compliance status with the latest official documentation before finalizing procurement specifications.

Selection Notes

Select this component when a low-profile, unidirectional microphone is required for compact audio applications. Ensure the system design supports the specified 1.5 VDC operating voltage and 400 uA current draw. Verify that the 9.7 mm diameter fits within the mechanical constraints of the target enclosure and that solder pad mounting is compatible with the PCB assembly process.

Part Context

This microphone belongs to the CMC series produced by Same Sky, which continues product lines previously managed by CUI Devices. The series focuses on providing reliable audio sensing solutions for various electronic devices. The specific model represents a standard configuration within this portfolio, designed for general-purpose voice capture tasks.

Replacement Considerations

Consult official substitution lists from Same Sky or CUI Devices for verified alternatives. Ensure any replacement maintains identical electrical parameters, including sensitivity and operating voltage, to guarantee functional compatibility without circuit redesign.