Wire-wound resistor USG series

high-voltageceramic-housedprecision

The very highest performance high voltage applications require the best possible temperature coefficient and long term stability from the high voltage resistors that are used in these applications. To meet these demanding requirements Caddock introduces the Type USG Ultra-Stable Precision High Voltage Resistors. Utilizing our proven Tetrinox® resistance film system, these Type USG resistors were developed to optimize low temperature coefficient performance and long term stability performance. By utilizing specific ceramic core materials with optimum Tetrinox® processing, we are able to control, very tightly in manufacturing, the important ultra-stable performance parameters in operating temperatures from -40°C to +85°C. This unique process is offered in specific resistance values in three body sizes. The extraordinary operating stability of the Type USG resistors will improve the performance of your high voltage system. The performance features of the Type USG Ultra-Stable Precision High Voltage Resistors are: • Temperature Coefficient: 10 ppm/°C from -40°C to +85°C. • Tolerance: 0.10% • Typical Load Life Stability of 0.025% per 1,000 hours at +85°C, 0.05% per 1000 hrs. maximum. • Three body sizes provide continuous voltage ratings of 5KV, 10KV, and 15KV. • The specific resistances that are offered in each body size have been selected for produceability of optimum performance. • The Ultra Low Temperature Coefficient minimizes self heating (warm-up) drift following the application of high voltage or resulting from a change in the applied high voltage. • Custom Low TC HV Strings are available: 50KV, 100KV, etc.