The current offering of capacitance and size is shown here. The X1/Y2 capacitors range from 3 pF to 4.7 nF. Based on internal design rules and know-how, an anti-arcing coating is applied to some of the capacitors that can experience arcing between terminations. These are typically higher in value or must pass harsh testing requirements. However, this anti-arcing coating is available for any rating upon request.