| 摘要 |
<p>PURPOSE:To obtain a common-use printed-circuit board wherein it prevents a component from being inserted erroneously when the component is inserted by a method wherein the component as one part constituting a circuit is inserted into a choke mounting hole in a printed-circuit board. CONSTITUTION:Resistances 5 as components in one part are inserted into a mounting hole (f) for a 30-W choke 3 and into a mounting hole (g) for a 40-W choke. Thereby, when pin terminals are pulled out for the 30-W choke 3 and the 40-W choke 4, the choke 3 cannot be inserted into a board 80EB1, the choke 4 cannot be inserted into a board 70EB1, and they are not inserted erroneously in an insertion operation. Type names are indicated in parts into which the resistances 5 are inserted, the indication of the board 80EB1 is hidden in Fig. (a), the indication of the board 70EB1 is hidden in Fig. (b) and the type names can be discriminated. Consequently, it is possible to prevent the chokes from being inserted erroneously, and a common-use printed-circuit board in which the type names can be discriminated can be formed.</p> |
