Sapphire is suited for precision trimmer capacitors as its dielectric constant is extremely stable and is chemically inert; totally moisture resistant and mechanically strong.
These trimmers have a high Q (a minimum of 3000 at 100MHz); DC working voltage of 2000V and DC withstand of 3000V. They are also compatible with SAC 305 reflow processing.
The V9000 series is specifically designed for the MRI industry where its size, power, capacitance range and affordability make it the preferred choice for the next generation of coils. Due to the severe non-magnetism requirements this industry requires we use only materials that exhibit no measurable magnetism – commercial brass and plating materials are not acceptable. Our strict traceability and testing regimes ensure this essential parameter.