The Molex 0015381024 is a 2-position open-top shunt from the C-Grid 7859 series, designed to short adjacent pins on a 0.100" (2.54mm) pitch header. It carries female sockets with a heavy 150.0µin (3.81µm) tin contact finish, rated 5A per circuit. This is the part you reach for when you need to configure a programming jumper, set an address line, or temporarily bridge two pins on a prototype board — the open top lets you probe the connection with a meter lead without pulling the shunt.
The 150 µ" tin finish is thick enough to handle repeated insertion and removal cycles on a test fixture or configuration header without wearing through to the base metal.