Page 72 - Make Your Own PCBs with EAGLE from Schematic Designs to Finished Boards

Table 3-5 does not include library search terms because you will generally find the exact part in
the library, for example, 2N2222, 2N700, or FQP33N10. Always search for the exact part first. If you
cannot find the part in the libraries, then try looking on the manufacturer’s website and some of the
part collections that can be found on the Internet. Generally, unless your part is really unusual,

someone, somewhere will have an EAGLE library that includes it. As a last resort, you can always
make your own part (see Chapter 11).
When using TO-220 parts, you will normally get the choice of vertically mounted or lying flat
against the board.

SMD Transistors and Diodes

SMD transistors are mostly one of two SMD package sizes, which keeps things simple. Figure 3-8

shows the package types SOD323, SOT23, and SOT223 (from left to right). SOD stands for “small
outline diode,” and SOT stands for “small outline transistor.” With care, all can be soldered by hand.

FIGURE 3-8 SMD diode and transistor package types.

Table 3-6 shows some devices and their footprints.

TABLE 3-6 Diode and Transitor SMD Types