The RU3060L is an ultrafast diode with low forward voltage drop. This device is intended for use as freewheeling and clamping diodes in a variety of switching power supplies and other power switching applications.
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 MJE13003 is a 1.5A, 400V NPN Bipolar Power Transistor is designed for high voltage power switching inductive circuits where fall time is critical. They are particularly suited for 115 and 220V SWITCHMODE application.
The HW-483 is DC5V 6mm 650nm Red Color Laser Diode Module For Arduino Very Easy To Use, Do controllable laser pointer, theft detection, etc. interesting application devices.
The S8550 is a PNP Epitaxial Silicon Transistor. 40V 500mA 2W Output Amplifier of Portable Radios in Class B Push-pull Operation. Complimentary to SS8050.
The AOZ1046AI is a high efficiency simple to use and work from a 4.75V to 16V input voltage range, and provides up to 2A of continuous output current with an output voltage adjustable down to 0.8V. The AOZ1046 comes in an SOP-8 package.
The PWM transfer voltage module LC-LM358-PWM2V converts the PWM digital signals into 0 to 10V analog signals. It can be used as signal interface switching for PLC or other industrial control boards.