The E49B4E000000VE10C0 SMD Crystal Resonator manufactured by Hosonic is a surface-mount component with a 4MHz, 7pF fundamental mode crystal made of a quartz element. It is compliant with RoHS (Restriction of Hazardous Substances) directives, and features a dielectric strength of 400 V AC. The component has an operating temperature range of -20°C to +60°C, and comes in a compact HC-49SMD package, with nominal dimensions of 22.5mm x 16.5mm x 6mm. It can withstand a maximum insulation voltage of 180 Vrms and a frequency stability of ±50ppm.