The IRFP054 is a 55V 80A 240W Third generation Power MOSFETs from Vishay provide the designer with the best combination of fast switching, ruggedized device design, low on-resistance and cost-effectiveness.
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 BD243C is a 6A, 100V NPN Bipolar Power Transistor is designed for use in general purpose amplifier and switching applications. BD243B, BD243C (NPN); BD244B, BD244C (PNP) are complementary devices.
The CD4049BM and CD4050BM devices are inverting and noninverting hex buffers, and feature logic-level conversion using only one supply voltage (VCC) Inverting Hex Buffer IC SOP-16 Pins Package.