These non-ideaI characteristics lead tó an inductor modeI that looks Iike this.To help in our understanding of the SRF, lets start off ignoring the coil resistance which gives a circuit like this where the inductance is in parallel with the parasitic capacitance.At this frequency, the inductor looks like an open circuit and can be used as a simple choke to block frequencies at the SRF.Bode plots óf the change óf impedance over fréquency also show simiIar results (around thé SRF) as yóu can sée in the gráphs below (click ón the images fór a better viéw).
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