The 2SK2485, 2SK-2485, K2485, 2485 is a 900V 6A 100W N-Channel Field Effect Transistor, TO-3P Package MOSFET. This product designed for high voltage switching applications.
The ENC28J60-I/SO is a standalone Ethernet controller with an industry standard Serial Peripheral Interface (SPI™). It is designed to serve as an Ethernet network interface for any microcontroller equipped with SPI Communication.