ElectronicsThis is a DIP Crystal Resonator 49S RoHS manufactured by XTY Electronics, model 5S0-3600A1020-00. It is an electronic component used for tuning circuits in electronic equipment, such as radios or computers. The number indicates the resonator's frequency rating, and is provided with an accuracy tolerance of + / - 10ppm. It has a 1.6mm profile and 2 pin configurations. The component has RoHS compliance certifications, which means it does not contain any hazardous materials. It is lead-free and its packaging meets environmental standards.