CMEJ-0627-42-P

Overview

The CMEJ-0627-42-P is an omnidirectional electret condenser microphone manufactured by Same Sky. It features a 6.0 mm diameter and 2.7 mm depth, designed for PCB mount applications via solder pins. The device operates at a DC voltage of 2.0 V with a current rating of 500 uA. Key electrical specifications include an impedance of 2.2 kohms and a sensitivity of -42 dB.

Feature Summary

• Omnidirectional acoustic design for uniform sound capture from all directions
• Electret condenser transducer technology for reliable audio signal conversion
• Compact cylindrical form factor suitable for space-constrained circuit board layouts

Applications

• Consumer electronic devices requiring compact audio input
• Portable communication equipment
• General-purpose voice recording circuits

Procurement Notes

Verify the specific suffix P against the manufacturer datasheet to confirm packaging configuration. Ensure the operating voltage aligns with the 2.0 VDC requirement. Confirm RoHS compliance status through official documentation before integration into regulated products.

Selection Notes

Select this component when an omnidirectional response is required in a minimal footprint. The 2.0 VDC supply requirement differs from standard 1.5 V or 3.0 V options, necessitating appropriate biasing circuitry. The 2.2 kohm impedance should be matched to the input stage of the connected amplifier.

Part Context

This microphone belongs to the CMEJ series of electret condenser microphones from Same Sky. The series offers various sizes and sensitivities, with this specific model providing a balance of compact dimensions and standard sensitivity for general audio pickup tasks.

Replacement Considerations

Cross-reference with other CMEJ series models such as CMEJ-4618-32-L045 for different size requirements. Verify pinout compatibility and electrical parameters when substituting with similar omnidirectional microphones from other manufacturers.