BSS138LT3G by Onsemi is a N-CHANNEL FET with a min DS breakdown voltage of 50V. It is used for switching applications and has a max drain current of 0.2A and max drain-source on resistance of 3.5 ohm.
Microchip Technology's RN41N-I/RM is a telecom IC with 35 terminals, operating from -40 to 85°C. It has a supply voltage of 3.3V and is surface mountable in industrial applications. The package style is rectangular, measuring 13.2mm x 20.1mm with a seated height of 2.2mm, suitable for telecom interface functions.
LM358ADR by Texas Instruments is an operational amplifier with 2 functions, featuring a max input offset voltage of 5000 uV and nominal voltage of 5V. Widely used in applications requiring high voltage gain, it operates within a temperature range of 0-70°C and offers frequency compensation for stability.