The "FemtoFarad" product family is specifically for ESD bidirectional protection of vulnerable electronic components, especially at IO ports. Continued shrinking of onchip component geometries of sub-micron sizes have reduced levels of ESD at which upset and failure occurs to the extent that protection is mandatory for reliability of power and data line interfaces. The sub-picofarad capacitance of this series provides excellent performance up through six GHz with minimal attenuation without linear or harmonic distortion well into the GHz range. In the off-state, this FemtoFarad, polymeric based technology is virtually invisible to circuit performance. Its proven structure is thick film on a rugged ceramic base that is ideal for automated assembly. Subsequent paragraphs and charts describe the outstanding performance and reliability of FemtoFarad components and many other features that make them the designer's choice for ESD protection.