Datasheet for the L298, a dual full-bridge driver from ST used to run DC motors, relays and stepper motors at up to several amperes total.

Datasheet for the 2SK4066, an N-channel power MOSFET, as indicated by the 2SK prefix of the Japanese semiconductor numbering system.

PDF datasheet, 2.54 MB, for the Microchip PIC16F72 flash microcontroller with an 8-bit ADC and capture, compare and PWM module.

Datasheet for the TIP41C NPN and TIP42C PNP complementary power transistors, a 195 KB PDF.