The S3B12.288000F1210F30 with SMD Crystal Resonators SMD-3225-4P RoHS is an electronic part manufactured by SCTF. It is a 4-pin Surface Mount Device, or SMD. It is rectangular, with a size of 3225, and has a nominal frequency of 12.288 MHz. It is RoHS (Restriction on Hazardous Substances) compliant, and features gold-plated pins. It provides superb frequency stability for applications requiring long term reliability.