Y16WB4500FP is a high-performance key switch from the K12 series designed for momentary switching applications. It features excellent tactile feel with multiple travel options (1 mm, 1.5 mm, or 2 mm) and various operating force selections ranging from 1.5 N to 20 N. The switch utilizes PC pin terminals with tinned surface finish and locating pins for secure PCB mounting. Common applications include automotive systems, industrial electronics, computers and network equipment, and joysticks where reliable low-level switching is required.