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Electronic Circuit Symbols

The standard schematic symbols drawn as clean SVG — searchable, theme-aware, and downloadable or copyable as markup for your own diagrams.

How to use it

  • Search by name or by what the component does.
  • Copy SVG gives you markup that inherits the surrounding text colour.
  • Download saves a standalone .svg file you can drop into a document or editor.

A schematic is only useful if the person reading it recognises the symbols, which is why circuit symbols have been standardised for the better part of a century rather than left to individual taste. This page draws the common set as clean, scalable SVG — resistors, capacitors, inductors, diodes, transistors, logic gates, sources and switches — searchable by name or by function.

Every symbol is vector, so it stays sharp printed at any size, and it is drawn with currentColor so it automatically matches the surrounding text colour in a document or dark-mode page.

ANSI vs IEC symbols

Two standards dominate schematics worldwide. ANSI (American National Standards Institute) symbols are the ones taught in most US and hobbyist electronics, and they are what this page uses by default. IEC (International Electrotechnical Commission) symbols are the European and international standard, and they differ most noticeably on the resistor — a rectangle in IEC versus the ANSI zigzag — which is why the resistor is shown in both here.

Datasheets from Asian and European manufacturers increasingly mix conventions, so recognising both forms is worth the five minutes it takes.

Categories on this page

  • Passive components — resistor, capacitor, inductor, potentiometer, variable resistor.
  • Sources — battery, DC voltage source, AC source, current source, ground and earth symbols.
  • Semiconductors — diode, LED, Zener diode, NPN and PNP transistors, MOSFET.
  • Switches and connectors — SPST, SPDT, pushbutton, relay, fuse, terminal.
  • Logic gates — AND, OR, NOT, NAND, NOR, XOR in standard shape notation.
  • Meters and misc — ammeter, voltmeter, motor, transformer, antenna.

Using the SVG in your own diagrams

Copy SVG places raw markup on the clipboard, ready to paste into an SVG editor, a web page, or a document that accepts vector graphics — it inherits the surrounding text colour rather than being fixed to one. Download instead saves a standalone .svg file fixed to black, the safer choice when the destination is a printed page rather than a themed screen.

Questions people ask

Are these IEC or ANSI symbols?

Mostly ANSI, which is what most hobbyist schematics and datasheets use. The resistor is given in both forms, since that is the one that differs most between the two standards.

Why do the symbols change colour with the theme?

They are drawn with currentColor rather than a fixed value, so they follow the surrounding text. The downloaded file is fixed to black for printing.

Does this page work offline?

Yes, after the first visit. The service worker caches it, so the reference stays available with no connection.

Also searched for

People find this page looking for electrical symbols.

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Last updated 22 August 2026