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ECM

The Electret Condenser Microphone (ECM) consists of an extremely light diaphragm and a backplate charged with a polarizing voltage. Due to the precision of its internal components, ECMs are highly sensitive to external noise. Therefore, they are encapsulated in a sealed metal casing to prevent foreign particles and other noises from entering.
Product Description Specifications / Price

  • Electret Condenser Microphone

    The Electret Condenser Microphone (ECM) operates by allowing sound waves to enter the microphone, causing the diaphragm to vibrate. This vibration changes the capacitance between the diaphragm and the backplate, resulting in a voltage variation. This voltage difference is then processed through internal integrated circuits (ICs) to generate analog or digital signals.
    Below are the classifications for microphone selection:

    • Directionality: Omni-directional, Uni-directional, Noise-canceling
    • Connection type：Soldering type, Pin type, Surface mount type
  • NESSIE P/N Directional Size(mm) Sensitivity(dB) SNR(dB) Current(uA) Features
    BOM4015LY-C Omni-Directional Φ4.0*1.5 -36/-38,±2 >68 <500 Hight SNR
    BOM6022LY-C Φ6.0*2.2 -30/-32,±2 >72 <500 Hight SNR
    BOM6027LY Φ6.0*2.7 -20,±1 >70 <500 Hight SNR
    BOM6027LY-C Φ6.0*2.7 -28/-32,±2 >74 <500 Hight SNR
    BOM6027LY-TC Φ6.0*2.7 -38/-40,±2 >63 <500 Anti-wi-fi Noise
    BOM6027LY-T Φ6.0*2.7 -40/-42,±2 73 <500 Hi-Fi
    BOM9745LY-C Φ9.7*4.5 -38/-40,±2 >65 <500 Hight SNR
    BOM9750LY-C Φ9.7*5.0 -26±3 >80 <500 Hight SNR
    BOM1465LY-C Φ14*6.5 -28/-30,±2 >76 <500 Hight SNR
    BOM1655LY-C Φ16*5.5 -27/-30,±2 >76 <500 Hight SNR
    KOM2509LY-T Φ25.0*9.5 -40/-42,±2 75 <500 Hi-Fi
    BUM6027LY-C Uni-Directional Φ6.0*2.7 -40±3 >64 <500 Hight SNR
    BUM1045LY-T Φ10.0*4.5 -42±2 73 <500 Hi-Fi
    BUM1463LY-T Φ14.0*6.3 -35±2 79 <500 Hi-Fi
    BUM1463LY-T Φ14.0*6.3 -42/-44,±2 73 <500 Hi-Fi
    BUM1655LY-T Φ16.0*5.5 -34±2 80 <500 Hi-Fi
    BUM1655LY-T Φ16.0*5.5 -40/-42,±2 75 <500 Hi-Fi
    BNM6027LY-T Noise Cancelling Φ6.0*2.7 -45,±3 60 <500 Hi-Fi
     

    ECM.xls

    For further details, please contact us.
    Contact Person: Diane Yeh
    TEL: 02-86659877 #302
    Mobile: 0988425153
    Email: diane.yeh@nessie.com.tw
    Assistant: Ms. Chu, 02-86659877 #205
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