Interactive PCB Component Identifier

Click any component on the board to learn its reference designator, package, and markings

Explored: 0 of 12 components

No score — just track your exploration

Click a component • Drag to pan • Scroll to zoom

Initializing circuit board...

Reference Designators

Every component on a circuit board has a letter prefix that tells you its family. Q means transistor just as Au means gold — a universal convention used by engineers worldwide.

Q1 Transistor

N-channel MOSFET