Pins Schottky Barrier Rectifier Diode, DO-41Switch, triple pole double throw, center OFF position K switch normally-open pushbutton push-button LED D MEC 5G single pole normally-open tactile switch with LED, generic K switch single-pole double-throw ON-OFF-ON D Single Pole Single Throw (SPST) switch, small symbol D Switch, three position, single pole double throw, separate symbols | | Q1, Q2, Q3, Q4, Q5 | 5 | 100nF | Unpolarized capacitor | .