The C&K COMPONENTS Y31C21664FPROHS is a sealed momentary action tact switch designed for demanding environments. It offers a positive tactile feel, IP67 sealing for protection against dust and water, and is available with J or Gullwing terminations for SMT assembly. Typical applications include automotive interiors, medical instruments, industrial electronics, and network infrastructure. The switch is suitable for use in applications requiring a certain level of quality or safety, but customers should contact customer service for contractual specifications.