Digital Class D Amplifier Inductor (EPS)

The core passive component in Class D (digital) audio power amplifiers, serving as the power inductor within the output low-pass filter of Class D audio amplifiers. Its primary function is to convert the high-frequency PWM (Pulse Width Modulation) square wave output from the amplifier chip back into the original analog audio signal and drive the speakers. Its performance directly determines the amplifier's sound quality, efficiency, and overall performance.

  • Features

    1. High-frequency, high-current operation

    2. Extremely low DC resistance

    3. Excellent anti-saturation characteristics

    4. Low core loss and low electromagnetic radiation


  • Advantages

    1. High-fidelity sound quality

    2. Exceptionally high efficiency

    3. Compact dimensions

    4. System stability and reliability


  • Applications

    Widely used in consumer audio, automotive audio systems, professional audio equipment, computers, and communication devices.


  • Customization Services

    - OEM Manufacturing: Supports mass production based on customer drawings.

    For specific models or technical specifications, please provide application scenarios and electrical requirements. We will match you with the optimal solution.


ModelIndutanceuH±20% DCR mΩ MaxIrsm(A)Isat(A)
MaxTyp
EPS14(7G14C)-100M10uH1210814
EPS14(7G14C)-150M15uH1513613
EPS14(7G14C)-220M22UH171459
EPS17(7G17D)-6R86.8uH6.54.58.232
EPS17(7G17D)-100M10uH6.54.58.226
EPS17(7G17D)-150M15uH15138.220
EPS17(7G17D)-220M22UH15138.213
EPS23(7G23A)-100M10uH989.540
EPS23(7G23A)-120M12uH989.537
EPS23(7G23A)-150M15uH989.532
EPS23(7G23A)-220M22uH989.522
EPS31(7G31A)-100M10uH651360
EPS31(7G31A)-120M12uH651350
EPS31(7G31A)-150M15uH651346
EPS31(7G31A)-220M22UH761330
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