This is a quartz crystal oscillator, designed to produce an accurate frequency and compact size. It has an SMD2016-4P case, with a total of four pins. The E1SB16E000008E model offers a frequency of 16 MHz and has a maximum load of 1.2 amperes. It is manufactured by Hosonic, and is compliant with ROHS standards. This part is suitable for use in a range of applications where precise frequency control is needed.