Syfer has announced that its E01 and E07 ranges of feedthrough three-terminal C chip filters are now available in smaller packages, as small as 0603. The devices are designed for general signal filtering in circuits incorporating high speed digital circuitry, particularly in automotive use and communications. In operation, the filtered signal passes through the chip's internal electrodes and the noise is filtered to the grounded side contacts, resulting in reduced length noise transmission paths. This helps ensure reduced inductance, compared to conventional multilayer chip capacitors (MLCCs), when used in signal line filtering. Devices are available in C0G/NP0 and X7R dielectrics, with voltage ratings ranging from 25 to 200V DC. Current ratings available include 300mA (E01), and 1 and 2A (E07). The higher current parts are suitable for installing on the DC power lines on PCBs. Many of the parts in the E01 lower current (300mA) range are qualified to the automotive AEC-Q200 standard. Depending on the capacitance and voltage rating required, the chip capacitors are offered in package sizes from 0603 to 1806. Typical devices offer a capacitance range of 150 to 390pF (300mA, C0G dielectric, 25V) or 2.7 to 12nF (1A, X7R, 50V).
