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Reference: LT3705 Data sheet Figure 7. "36V-72V 1V/5A Isolated Forward Converter Using Optoisolator."

My question regards the 470pF capacitor across the output of the optoisolator. Is this for RF immunity and/or noise rejection? If so, can we use a different value to target specific noise frequencies?

(For example, we'd like to use a value of capacitor that presents a low impedance at the transmitting frequency of our radio product.)

Best regards,

Fraser Lawson

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