The filter capacitor
is an energy storage component used to reduce the ripple coefficient of AC pulsation and smooth the DC output. It is widely used in various audio and speaker equipment. It is not difficult to choose the filter capacitor. First of all, we first understand the working principle of the filter capacitor, which uses the characteristics of low impedance to the AC signal. We understand the circuit of the filter capacitor like this: large capacitors consider low frequencies, and small capacitors consider high frequencies. The fundamental reason is that the SFR (self-resonant frequency) value is different. How to choose filter capacitors with different SFR values? This needs to be obtained from the filter capacitor manufacturer. Model filter capacitor samples, and then conduct a test on your product circuit board, through the test, you can determine your appropriate SFR value of the filter capacitor. If you don’t understand the circuit board test, you can also send the product design drawings or the required parameters directly to Shenmao Capacitor Co., Ltd., 24.9 years of experience in filter capacitor production, provide thousands of filter capacitors, preferably filter capacitor manufacturers
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