CMEJ-4618-42-L012

Overview

The Same Sky CMEJ-4618-42-L012 is an omnidirectional electret condenser microphone designed for audio signal capture. It features a compact cylindrical element with a diameter of 4.6 mm and a depth of 1.8 mm, terminated by 120 mm wire leads. The device operates at a supply voltage of 2 VDC with a current rating of 500 uA. It exhibits a nominal impedance of 2.2 kohms and a sensitivity of -42 dB ±3 dB referenced to 94 dB SPL at 1 kHz. The frequency response spans from 100 Hz to 10 kHz.

Feature Summary

• Omnidirectional acoustic design for uniform sound pickup
• Electret condenser transducer technology
• Integrated long wire leads for direct circuit connection

Applications

• Consumer electronic audio input devices
• Voice recognition systems
• Portable recording equipment

Procurement Notes

Verify the specific suffix L012 confirms the 120 mm lead length variant. Ensure the 2 VDC operating voltage aligns with the target circuit biasing requirements. Confirm RoHS compliance status through official manufacturer documentation prior to integration.

Selection Notes

Select this component when a low-profile, omnidirectional microphone is required for space-constrained designs. The fixed 120 mm wire termination simplifies assembly compared to surface-mount alternatives. Verify that the 2.2 kohm impedance matches the input stage of the connected amplifier or processing unit.

Part Context

This model belongs to the CMEJ-4618-42-LX series of electret condenser microphones manufactured by Same Sky. The series offers various lead length options while maintaining consistent acoustic performance and physical dimensions. Same Sky, formerly known as CUI Devices, produces these components for general audio applications.

Replacement Considerations

Substitutes must match the 4.6 mm diameter, 2.2 kohm impedance, and -42 dB sensitivity. Verify equivalent frequency response and operating voltage compatibility before replacing.