BSS138DW-7-F by Diodes Incorporated is a N-channel small signal FET with a min DS breakdown voltage of 50V. It is used for switching applications and operates in enhancement mode. This surface mount transistor has a max drain current of 0.2A and a max power dissipation of 0.2W.
1N4148WT by Onsemi is a single rectifier diode with a max output current of 0.3A and forward voltage of 0.72V. It has a small outline package style, matte tin terminal finish, and operates at temperatures up to 150°C. Ideal for applications requiring fast reverse recovery time such as power supplies and signal demodulation circuits.