This is an HC49US-FF3F18-11.0592 crystal oscillator manufactured by Abracon. It features an extended frequency range of 11.0592 MHz and an operating temperature range of -20 to +70 degrees Celsius. The size of the package is a 3 x 2.5 mm form factor with a through-hole design, making it suitable for PCB assembly. It also has a full mechanical shock rating of 1,500 g at 10 ms, making it ideal for use in industrial applications. This oscillator is designed for use in high-frequency switching applications, providing it with excellent frequency stability and reliability.