BD139 Description
These epitaxial planar transistors are mounted in the SOT-32 plastic package. They are designed for audio amplifiers and drivers utilizing complementary or quasi-complementary circuits. The NPN types are the BD135 and BD139, and the complementary PNP types are the BD136 and BD140.
BD139 Features
Products are pre-selected in DC's current gain
BD139 Application
General-purpose