Caddock TG Series

The TG series from Caddock are low TCR precision high voltage resistors, with a resistance range between 1MΩ and 1,000MΩ. They have a tolerance of ±1.0% (down to ±0.1% on special order) and the low TCR value is ±25 ppm/°C (between -55°C and +125°C). The TG series utilize Caddock’s proven Tetrinox® resistance system to achieve the unique combination of low temperature coefficient (TCR) which minimizes the self-drift due to power dissipation warm-up and high stability performance at high operating voltages.

• Precision high voltage axial leaded through-hole resistor
• Resistance values available between 1MΩ and 1,000MΩ
• TCR of ±25 ppm/°C (between -55°C and +125°C)
• Tolerance of ±1.0% (down to ±0.1% on special order)
• Maximum power rating of 6W (model dependent)
• Load life stability to 0.25% per 1,000 hours at +125°
• Maximum continuous operating temperature of +225°C
• Maximum operating voltage from 4kV up to 30kV (standard series)
• Utilises Caddock’s Tetrinox® resistance technology
• The -15 series increases the maximum voltage ratings by 60% (48kV for the TG1015 model)

The TG series from Caddock is designed to meet the demanding stability requirements of:

• TWT power supplies
• Electron microscopes
• X-ray systems
• High resolution CRT displays
• Geophysical instruments

The below table gives the specifications available for the complete TG resistor series: