A battery capacity tester is used to measure the amount of charge stored in a battery in Ah. It can be used to measure the actual capacity of batteries compared to their rating and to discharge batteries safely.
The TMP5000 module is a breakout board that contains the TP5000 single-cell LiPo battery charging IC and the associated peripheral components that set charge parameters.
The TP5100 is an integrated Lithium battery charger that has a switch mode buck topology. It has all the integrated functions to charge a single or dual cell Lithium battery, along with a few peripheral components.
The TYN616 is a medium power SCR from ST Microelectronics that can switch loads of up to 16A and withstand up to 600V. It is used for medium power switching applications.
The BD140 is a PNP Epitaxial Planar Transistor that is mounted in the SOT-32 plastic package. They are designed for audio amplifiers and drivers utilizing complementary or quasi-complementary circuits.