Two of the most common resistor technologies are thick film and wirewound. In this post we compare thick film high voltage resistors with their wirewound competitors discussing the advantages and disadvantages of each.
Thick film high voltage resistors are manufactured by depositing a resistance film pattern onto a flat substrate (usually Alumina). The assembly is then fired at high temperature. The resistor elements are often applied in spiral patterns and consist of metal alloy or oxide particles, functional elements and a glass particle binder.