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Product Detailed Parameters
- Description：MIC COND ANLG OMNI -36DB 0.276"D
- 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：-36dB ±2dB @ 94dB SPL
- S/N Ratio：60dB
- Impedance：-
- Voltage Range：-
- Current - Supply：500 µA
- Port Location：Top
- Ratings：-
- Termination：Wire Leads
- Size / Dimension：0.276" Dia (7.00mm)
- Height (Max)：0.138" (3.50mm)
- Shape：Circular
- Grade：-
- Qualification：-
- Voltage - Rated：4.5 V
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Overview
The CMEJ-0733-36-L050 is an omnidirectional electret condenser microphone manufactured by Same Sky. It features a 7.0 mm diameter with wire lead termination for circuit integration. The device operates at a DC voltage of 4.5 V and draws a current of 500 uA. It provides a sensitivity of -36 dB ±2 dB at 94 dB SPL and maintains an impedance of 2.2 kOhms. The operational frequency range spans from 100 Hz to 10 kHz, ensuring reliable audio capture for various electronic applications.
Feature Summary
- Omnidirectional acoustic design for uniform sound pickup
- Electret condenser transducer technology
- Wire lead termination for direct circuit connection
Applications
- Consumer electronics audio input
- Voice recognition systems
- General purpose sound detection
Procurement Notes
Verify the manufacturer designation as Same Sky, formerly known as CUI Devices, to ensure accurate sourcing. Confirm the specific model suffix matches the required 4.5 Vdc operating voltage and -36 dB sensitivity specifications. Check RoHS compliance status and packaging quantities against project requirements before finalizing orders.
Selection Notes
Select this component when an omnidirectional response is required for compact audio sensing. The 7.0 mm form factor suits space-constrained designs. Ensure the power supply can provide the specified 4.5 Vdc and 500 uA current draw. Verify that the wire lead termination method aligns with the assembly process.
Part Context
This microphone belongs to the CMEJ series of electret condenser microphones from Same Sky. The series offers various sizes and sensitivities to accommodate different audio performance needs. The CMEJ-0733 variant specifically targets applications requiring a balance between size and acoustic performance.
Replacement Considerations
Cross-reference with other CMEJ series models if dimensional or electrical parameters differ. Verify compatibility with existing biasing circuits when substituting components with different sensitivity or impedance values.
