<silkscreencircle />

Overview

The <silkscreencircle /> element draws a circle on the PCB silkscreen layer. It is most commonly used to mark Pin 1 on IC footprints, outline round components (such as radial electrolytic capacitors, buzzers, or coin-cell holders), or place circular alignment fiducials on the silkscreen.

export default () => (
  <board width="10mm" height="8mm">
    <chip
      name="U1"
      footprint={
        <footprint>
          <smtpad portHints={["1"]} shape="rect" width="1mm" height="0.5mm" pcbX="-1.8mm" pcbY="0.65mm" />
          <smtpad portHints={["2"]} shape="rect" width="1mm" height="0.5mm" pcbX="-1.8mm" pcbY="-0.65mm" />
          <smtpad portHints={["3"]} shape="rect" width="1mm" height="0.5mm" pcbX="1.8mm" pcbY="-0.65mm" />
          <smtpad portHints={["4"]} shape="rect" width="1mm" height="0.5mm" pcbX="1.8mm" pcbY="0.65mm" />
          <silkscreenrect pcbX={0} pcbY={0} width="2.2mm" height="2.4mm" strokeWidth="0.12mm" />
          <silkscreencircle pcbX="-2.6mm" pcbY="0.65mm" radius="0.25mm" isFilled />
        </footprint>
      }
    />
  </board>
)

Properties

Property	Type	Default	Description
pcbX	length	0	X coordinate of the circle center on the PCB silkscreen
pcbY	length	0	Y coordinate of the circle center on the PCB silkscreen
radius	length	required	Radius of the silkscreen circle
strokeWidth	length	"0.1mm"	Line thickness of the circle outline
isFilled	boolean	false	When true, renders a solid filled silkscreen dot
isStrokeDashed	boolean	false	When true, renders the circle outline with a dashed stroke
layer	"top" | "bottom"	"top"	PCB layer on which to draw the silkscreen circle

Outlined vs. Filled Circles

Set isFilled to create a solid Pin 1 indicator dot, or omit isFilled and adjust strokeWidth to draw a circular component body outline:

export default () => (
  <board width="14mm" height="8mm">
    <footprint>
      <silkscreencircle pcbX={-3} pcbY={0} radius="2mm" strokeWidth="0.2mm" />
      <silkscreencircle pcbX={3} pcbY={0} radius="1.2mm" isFilled />
    </footprint>
  </board>
)