The ECS-100-S-1 series from ECS Inc. International is a lineup of 10MHz crystal oscillators designed for both surface-mount and through-hole board configurations. These crystals are commonly used in a wide range of electronic devices where precise timing is crucial, such as microcontrollers, communication modules, and test equipment. If you're working on projects that require stable and accurate clock signals, these crystals are a reliable choice.

One thing worth noting is their versatility; they can be easily integrated into various PCB designs, whether you're using surface-mount technology or traditional through-hole components. This makes them a popular pick among engineers who need a simple way to provide a stable clock signal without adding much complexity to their design. Another practical observation is that these crystals are often used in conjunction with ICs that require a stable clock input, helping to ensure that the device operates within its specified performance parameters.