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Product Detailed Parameters
- Description：MIC COND ANLG OMNI -42DB 0.157"D
- Series：CMC
- Mfr：Same Sky (Formerly CUI Devices)
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Electret Condenser
- Output Type：Analog
- Direction：Omnidirectional
- Frequency Range：20 Hz ~ 20 kHz
- Sensitivity：-42dB ±3dB @ 94dB SPL
- S/N Ratio：58dB
- Impedance：2.2 kOhms
- Voltage Range：-
- Current - Supply：500 µA
- Port Location：Top
- Ratings：-
- Termination：Surface Mount
- Size / Dimension：0.157" Dia (4.00mm)
- Height (Max)：0.051" (1.30mm)
- Shape：Circular
- Grade：-
- Qualification：-
- Voltage - Rated：2 V
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Overview
The CMC-4013-2-SMT-TR is an omnidirectional electret condenser microphone manufactured by Same Sky. It features a surface-mount design with a round 4.0 mm package. The device operates at a DC voltage of 2.0 Vdc and utilizes an IEC 60959 standard interface. Key electrical parameters include a sensitivity of -38 dB, an equivalent input noise level of 28 dBA, and a signal-to-noise ratio of 66 dB. The component supports a maximum sound pressure level of 114 dB SPL.
Feature Summary
- Omnidirectional acoustic response for uniform sound capture from all directions
- Surface-mount technology (SMT) construction for automated PCB assembly
- Electret condenser transducer mechanism for high-fidelity audio conversion
Applications
- Consumer electronic devices requiring compact audio input
- Voice recognition systems and smart home assistants
- Portable communication equipment and mobile handsets
Procurement Notes
Verify the specific suffix designation to confirm the 2.0 Vdc operating voltage requirement, as variations exist within the product family. Ensure compatibility with the target circuit's biasing network. Confirm that the surface-mount footprint matches the design specifications. Check RoHS compliance status against current regulatory requirements for the intended market.
Selection Notes
Select this component when an omnidirectional pickup pattern is required for ambient sound capture. The 2.0 Vdc supply voltage suits low-power applications compared to higher voltage alternatives. Consider the -38 dB sensitivity and 66 dB SNR for clear voice transmission in moderate noise environments. Evaluate the 4.0 mm diameter constraint against available board space.
Part Context
This microphone belongs to Same Sky's line of surface-mount electret condenser microphones designed for compact audio applications. It serves as a successor or variant to previous models like the CMC-4013-SMT-TR, which has been discontinued. The product line emphasizes small form factors suitable for modern portable electronics while maintaining reliable acoustic performance standards.
Replacement Considerations
The CMC-4013-SMT-TR is listed as obsolete. The CMC-4013-2-SMT-TR is identified as a similar available substitute. Verify pinout and electrical parameter alignment before substitution.
