Non-Magnetic MLC Capacitors

The use of a copper barrier instead of a nickel barrier, with a tin finish on top, is the solution Knowles has developed for non-magnetic applications. This non-magnetic termination is offered with selected non-magnetic high-Q (C0G/NP0), X5R, and X7R dielectrics, providing a fully non-magnetic component (μr=1.0000). To meet high temperature +260°C soldering reflow profiles as detailed in J-STD-020, high-Q dielectrics are supplied with sintered solder terminations, while X5R and X7R dielectrics use Knowles' award-winning FlexiCap^™ solder termination. Ribbon lead terminations for optimum mechanical performance are also available on high-Q, high-power RF parts. All standard capacitance tolerances are supported from ±0.05 pF/0.5%.

While the primary uses are MRI and NMR, the absence of nickel also makes these parts suitable for applications with low PIM requirements. Parts are also suitable for standard RF applications.