.The S3B27.120000F2010F30 with SMD Crystal Resonators SMD-3225-4P RoHS is a surface mount device (SMD) manufactured by SCTF. The S3B27.120000F2010F30 is an SMD crystal resonator with a frequency of 12MHz. It comes in a four-pin, 3225 package configuration and is conforms to the RoHS regulations. It is suitable for use with a variety of digital applications such as microcontrollers, transceivers, and signal processing applications. The S3B27.120000F2010F30 offers a high frequency stability, high reliability, low power consumption, and low cost.