Unrealistic ESR calculated from DF

This is correct only as a line f* diode bridge cap. Tan delta is std at 120Hz.

It is unwise to use as that*.

Unlike some or most e-caps this ceramic cap drops to 3 mohms near SRF ,~1MHz

Look for the PDF with my graph (re-search) hint Samsung site

Answer: char. Data.pdf http://www.samsungsem.com/global/support/product-search/mlcc/1205485_4290.jsp