ULN2803 – What is it? Technical data, schematic diagram
ULN2803 is an integrated circuit containing eight pairs of Darlington, allowing you to drive current to motors, relays and other inductive components! See our article for technical details!
IRF540 – What is it? Technical data, schematic diagram
IRF540 – MOSFET (high) power transistor – check technical details in our article!