Ruthenium resistive pastes, special series PARUS

Resistive pastes containing ruthenium, designed for the manufacture of resistive elements by screen printing. PARUS series pastes are specially developed for forming variable and trimming resistors.

The pastes are available in various series that differ in the composition of the conductive phase, organic binder, and electrophysical parameters of the resulting films.

Applications:

The pastes are recommended for creating thick-film fixed and variable resistors by screen printing on ceramics with an alumina content of at least 92% for PRu-V and PRu-Ve series pastes, and at least 96% for PRu-P and PARUS series pastes, followed by heat treatment in air.

It is permissible to form resistors in multilayer boards on dielectric PD-12. The pastes are compatible with conductor pastes of the PP series. To obtain intermediate resistance values, mixing of pastes of adjacent nominal values within a series is allowed. A computer program, supplied free of charge upon customer request, is used to calculate the mixing ratio.

In PRu-V series pastes, a lanolin-based binder is used, while in PRu-Ve, PRu-P, and PARUS series pastes, a terpineol-based binder is used.

PRu-P and PARUS series pastes are recommended for precision applications, as they have a smaller spread in nominal value (PRu-P) and a lower TCR (PARUS).

Technical specifications of pastes: