The EMIF02-SPK02F2 chip is a highly integrated device designed to suppress EMI/RFI noise for interface line filtering. The EMIF02-SPK02F2 flip-chip packaging means the package size is equal to the die size. That's why the EMIF02-SPK02F2 is a very small device. Additionally, this filter includes ESD protection circuitry, which prevents damage to the protected device when subjected to ESD surges up 30 kV.