NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .5 W; Maximum Collector Current (IC): .8 A;
LM358D-T by NXP Semiconductors is a dual operational amplifier with 70dB CMRR, 1000kHz unity gain bandwidth, and 9000uV max input offset voltage. Widely used in commercial applications due to its small outline package and low bias current of 0.5uA.
ULN2803ADWR by Texas Instruments is a peripheral driver with 8 functions, open-collector output characteristics, and built-in transient protections. It operates b/w -40 to 85°C, has a max supply voltage of 3V, and is ideal for buffer or inverter-based applications requiring sink current flow direction.
LM358M by Texas Instruments is an Operational Amplifier with 2 functions, featuring a max input offset voltage of 9000 uV and a nominal voltage of 5 V. It is commonly used in applications requiring high common mode rejection ratio and low bias current, such as sensor interfaces and signal conditioning circuits.