MMSZ5245BT1G by Onsemi is a Zener diode with 15V nominal reference voltage, 8.5mA test current, and 16 ohm dynamic impedance. It is used in applications requiring precise voltage regulation in a compact SMD package for temperatures ranging from -55 to 150°C.
Diodes Inc. MMBT3904-7-F is a NPN BJT transistor for switching applications. Features include VCEsat of 0.3V, hFE of 30, and IC of 0.2A. With a max operating temp of 150°C, it's ideal for small outline SMT designs in automotive electronics.
The Molex 43025-0400 is a board connector with 4 contacts, 2 rows, and a mating contact pitch of 0.118". It has a body length of 0.27", insulation resistance of 1Gohm, and operates b/w -40 to 105°C. Ideal for commercial applications requiring a female connector with crimp termination and UL94V-0 flammability rating.