The S3D12.288000D20F30T is a high-precision surface mount oscillator manufactured by SCTF. It is an SMD (Surface Mount Device) oscillator with a frequency of 12.288MHz ±20ppm. It has a tolerance of ±20ppm, or ±0.02%, and a type of 3225-4P. Additionally, the oscillator is RoHS compliant, meaning it is non-hazardous and safe for use. It is suitable for applications that require precise, stable frequencies and low-power consumption.