Page 66 - Make Your Own PCBs with EAGLE from Schematic Designs to Finished Boards

For higher powers than 1 W, through-hole resistors normally will be used for their better air
circulation to allow heat to dissipate.

SMD resistors are generally marked with a four-digit code. This is rather like the color code used
in through-hole resistors but just written as digits. Thus both the resistors in Figure 3-4 have the code
1001. This means three value digits 1, 0, and 0 and a number of zeros digit of 1. Thus the value is
1,000 Ω or 1 kΩ.

Capacitors

If you are developing digital projects that use perhaps a microcontroller and a few extra components,
then you will only be using a fairly small set of capacitors and using them in a pretty simple way—
probably 100-nF decoupling capacitors close to ICs or perhaps 100-μF capacitors around a voltage
regulator.

Through-Hole Capacitors

As decoupling capacitors placed close to ICs, tiny multilayer ceramic capacitors are ideal. These