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Product Detailed Parameters
- Description：MIC COND ANALOG OMNI 0.276"DIA
- Series：CMEJ
- Mfr：Same Sky (Formerly CUI Devices)
- Package：Bag
- Type：Electret Condenser
- Output Type：Analog
- Direction：Omnidirectional
- Frequency Range：100 Hz ~ 10 kHz
- Sensitivity：-
- S/N Ratio：70dB
- Impedance：-
- Voltage Range：-
- Current - Supply：500 µA
- Port Location：Top
- Ratings：IP65 - Dust Tight, Water Resistant
- Termination：Wire Leads
- Size / Dimension：0.276" Dia (7.00mm)
- Height (Max)：0.138" (3.50mm)
- Shape：Circular
- Grade：-
- Qualification：-
- Voltage - Rated：2 V
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Overview
The CMEJ-0733-25-L350 is an omnidirectional electret condenser microphone manufactured by Same Sky. It features a 7.0 mm diameter and 3.3 mm depth, designed for PCB integration via wire leads. The device operates on a supply voltage of 2.0 Vdc with a current rating of 500 uA. Key electrical specifications include a sensitivity of -28 dB and an impedance of 2.2 kOhms. The frequency response spans from 100 Hz to 10 kHz, ensuring accurate audio capture for standard voice applications.
Feature Summary
- Omnidirectional acoustic pattern for uniform sound pickup
- Electret condenser technology for stable analog output
- Wire lead termination for flexible circuit integration
Applications
- Consumer electronic audio input devices
- Voice recognition systems
- Portable communication equipment
Procurement Notes
Verify the specific suffix configuration against the official Same Sky datasheet to ensure compatibility with required voltage and termination standards. Confirm RoHS compliance status through the manufacturer's documentation before finalizing procurement orders for regulated markets.
Selection Notes
Select this component when a compact omnidirectional microphone with wire leads is required for low-voltage operation. The 2.0 Vdc operating voltage suits battery-powered designs. Ensure the 7.0 mm form factor fits the available board space and that the wire lead termination method aligns with the assembly process.
Part Context
This part belongs to the Same Sky CMEJ series of electret condenser microphones. The series offers various diameters and sensitivities to accommodate different audio requirements. The CMEJ-0733 variant specifically provides a 7.0 mm footprint, balancing size constraints with acoustic performance for general-purpose audio sensing tasks.
Replacement Considerations
Direct substitutes within the same series include models like CMEJ-0733-25-LX where pinout and dimensions match. Verify sensitivity and voltage ratings carefully when cross-referencing other manufacturers' omnidirectional electret microphones to ensure functional equivalence.
