Coaster

The circuit board offers several useful memory aids to assist you in reaching your project goals! Now in case you are wondering what some of these are, read below!

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Circular printed circuit coaster board (PCB) with text and symbols on a white background

Footprints

Packed with a comprehensive selection of component footprints, this coaster includes the essential imperial resistor and capacitor layouts a must-have for every electronics enthusiast and engineer.

Formulas

Keep key electrical formulas at your fingertips. On the left side, you’ll find the most commonly used equations for quick reference:

  • V = R × I (Ohm’s Law)
  • Q = C × V (Charge)
  • P = V × I (Power)
  • τ = R × C (Time Constant)
  • Xᴸ = 2π × f × L (Inductive Reactance)
  • Xᴄ = 1 / (2π × f × C) (Capacitive Reactance)
  • RMS (sine) = Peak / √2

Transistor Pinout

Features clear pinout diagrams for BJT (PNP/NPN) and MOSFET (N-Channel/P-Channel) transistors perfect for quick reference during circuit design or troubleshooting.

Trace Specifications

Includes recommended PCB trace width guidelines for a +10°C temperature rise, helping you design safe and reliable circuits.

Pitch

Displays standard pitch measurements for components, giving you a clear visual reference for pin spacing and distance for quick layout checks and accurate component placement.

The Oops

Inspired by a legendary prototype fix used in data communication lines, this section celebrates a clever engineering trick.
When RX (receive) and TX (transmit) lines are accidentally swapped, the footprint layout allows you to correct the mistake instantly no redesigns, no wire patches, just smart engineering.

 

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