These epitaxial planar transistors are mounted in the TO-126 plastic package. The NPN types are the BD135 and BD139, and the complementary PNP types are the BD136 and BD140.
The LTC3780 is a DC-DC-Auto-Up & Down-Voltage-Regulator-5-32V-to-1-24V-DC-Adjustable-Converter. My interest in this DC-DC switcher is to operate 19VDC laptops/notebooks and LCD TVs from 12V batteries/solar.
The 2SC9014 2SC-9014 2SC 9014 C9014 is a NPN 50V 0.1A 0.6W 270MHz Transistor TO-92 Package Bipolar NPN Small Signal Transistor Electrical Circuitry and Parts