ULN2803A by Texas Instruments is a peripheral driver with 8 functions. It has a max supply voltage of 3V and can operate in temperatures ranging from -40 to 85°C. This IC is commonly used as a buffer or inverter based peripheral driver for various applications.
FDC5614P by Onsemi is a P-CHANNEL Power FET with 60V DS Breakdown Voltage, ideal for SWITCHING applications. It features 20A Max IDM and 0.105 ohm RDS(ON), operating in ENHANCEMENT MODE at -55 to 150 °C. This SMALL OUTLINE transistor has a built-in diode, GULL WING terminals, and METAL-OXIDE SEMICONDUCTOR technology.
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .2 W; No. of Elements: 1; Terminal Form: GULL WING;