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.
2N7002 by Vishay Intertechnology is a N-CHANNEL FET with 60V DS Breakdown Voltage, 0.115A Drain Current, and 7.5 ohm On Resistance. Ideal for SWITCHING applications due to its SINGLE configuration with BUILT-IN DIODE. Operates in ENHANCEMENT MODE, suitable for surface mount with GULL WING terminals.
AH180-WG-7 by Diodes Inc. is a magnetic field sensor with 1.5mT hysteresis, 0.30V output range, and 9mA max operating current. Ideal for applications requiring non-inverting analog voltage output in a compact rectangular package suitable for surface mount installations.