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Product Detailed Parameters
- Description：MIC COND ANLG OMNI -42DB 0.157"D
- Series：CMEJ
- Mfr：Same Sky (Formerly CUI Devices)
- Package：Tray
- Type：Electret Condenser
- Output Type：Analog
- Direction：Omnidirectional
- Frequency Range：100 Hz ~ 10 kHz
- Sensitivity：-42dB ±3dB @ 94dB SPL
- S/N Ratio：60dB
- Impedance：-
- Voltage Range：-
- Current - Supply：500 µA
- Port Location：Top
- Ratings：-
- Termination：PC Pins
- Size / Dimension：0.157" Dia (4.00mm)
- Height (Max)：0.067" (1.70mm)
- Shape：Circular
- Grade：-
- Qualification：-
- Voltage - Rated：2 V
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Overview
The CMEJ-0415-42-LP is an omnidirectional electret condenser microphone manufactured by Same Sky. It features a 4.0 mm diameter and 1.3 mm depth, designed for low-power audio sensing applications. The device operates at a DC voltage of 2.0 V with a current rating of 500 uA. It provides a sensitivity of -42 dB and presents an impedance of 2.2 kOhms. The component utilizes wire leads for termination, facilitating integration into compact electronic assemblies requiring reliable acoustic input.
Feature Summary
- Omnidirectional acoustic pickup pattern ensures consistent sound capture from all directions.
- Electret condenser technology enables high sensitivity with minimal power consumption.
- Compact cylindrical form factor supports installation in space-constrained designs.
Applications
- Consumer electronics audio input modules
- Portable voice recording devices
- Smart home sensor arrays
Procurement Notes
Verify the specific termination style and lead configuration against the official datasheet before procurement. Confirm RoHS compliance status and environmental declarations match project requirements. Ensure the operating voltage and current specifications align with the target circuit design to prevent performance degradation or component damage during operation.
Selection Notes
Select this component when an omnidirectional response is required for general-purpose audio capture. The 2.0 V operating voltage suits battery-powered systems. Compare impedance and sensitivity metrics against alternative models if interface matching is critical. Verify physical dimensions to ensure compatibility with the intended enclosure or PCB layout constraints.
Part Context
This microphone belongs to the CMEJ series of electret condenser microphones from Same Sky. The series offers various mounting options and sizes. This specific model emphasizes low profile and omnidirectional characteristics. It serves as a standard solution for basic voice detection and audio signal acquisition in commercial and industrial electronic products.
Replacement Considerations
Consult official substitution lists for verified equivalents. Generic replacements may differ in sensitivity or impedance. Verify pinout and mechanical dimensions before swapping components to maintain system integrity and acoustic performance consistency.
