Hirose's W.FL2 is another ultrasmall coaxial connector in the Hirose line of .FL series. The W.FL2 has a mating height of 1.3 mm max. The receptacle has a 0.7 mm profile and occupies a space of 2.0 mm by 2.0 mm. The series is designed with the new concept of a C-ring locking mechanism which enables the reliable retention force and robust mechanical operations as well as the existing W.FL series. The W.FL2 is RoHS-compliant.