DescriptionTO-18, 3leads, ZN414 (shaded).svg A drawing of a ZN414 IC in TO-18 transistor package (metal can package). This IC has 3leads. Date 5 November
DescriptionTO-18, 3leads, 2N2646 (shaded).svg Note: There is no BC2646. The unijunction transistor in a 3-leaded TO-18 metal can transistor package has