Low TC Precision High Voltage Resistors

The Caddock Type TG Series offers low temperature coefficient precision high voltage resistors designed to meet the stringent stability requirements of high-accuracy systems. Utilising Caddock’s proprietary Tetrinox® resistance film technology, these resistors achieve a unique combination of low TC and high stability at elevated operating voltages. With a resistance range spanning from 25kΩ to 1,000MΩ and tolerance options as tight as ±0.1%, the Type TG Series ensures precise performance across various applications. The low TC of ±25 ppm/°C minimises self-drift due to power dissipation, maintaining accuracy over a wide temperature range. Additionally, the series supports maximum continuous operating voltages up to 30 kV, with an optional “-15” rating that extends this capability by 60%, making these resistors ideal for demanding high-voltage applications.

Key Features:

• High-voltage operation with low temperature coefficient
• Resistance range: 25kΩ to 1,000MΩ
• Temperature coefficient: ±25 ppm/°C from -55°C to +125°C
• Load life stability: 0.25% per 1,000 hours at +125°C
• Resistance tolerance options: ±0.1%, ±0.25%, ±0.5%, ±1%
• Maximum continuous operating voltage up to 30kV, extendable by 60% with “-15” rating

Application Industries and Use Cases:

• Medical Equipment: Ensures stability in high-voltage X-ray systems and electron microscopes
• Industrial Electronics: Provides precision in semiconductor processing equipment and spectrographic instruments
• Telecommunications: Maintains accuracy in high-voltage power supplies for TWT amplifiers
• Scientific Research: Supports high-stability electron beam equipment and geophysical instruments
• Test and Measurement: Ideal for high-voltage precision dividers and probes requiring low TC and high stability