Ceramic resistor cores are used to externally insulate and provide increased thermal endurance.
The most common ceramic resistors are resistive wire spun around a ceramic core.
Ceramic resistor cores are used, but not limited to; current flow reduction, signal level adjustments (to divide voltage) and termination of transmission lines.
Call DU-CO Ceramics today for more information. Custom size ceramic resistor corescan be manufactured to your specification.