The MG precision high-voltage axial standard resistor range from Caddock offers a resistance range from 200Ω up to 2GΩ and a voltage rating up to 30kV with the possibility of 1.5 times maximum continuous operating voltage for 5 seconds. The power rating for these resistors is up to 15W with the possibility of 5 times rated power for 5 seconds (not exceeding maximum voltage). The MG series offers tolerances from ±1% down to ±0.1% and has demonstrated stability of 0.01% per 1,000 hours in extended load life testing. Caddock’s Micronox® resistance films are the source of their outstanding combination of performance features.
- Cylindrical high voltage axial leaded resistor
- Resistance values from 200Ω up to 2GΩ *
- Tolerances of ±0.1%, ±0.25%, ±0.5% and ±1%
- TCR as tight as ±80 ppm/°C from -15°C to +105°C, referenced to +25°C
- Operating Temperature Range of -55°C to +225°C
- Maximum operating voltage from 600V up to 30kV *
- Maximum power rating from 0.5W up to 15W *
- Excellent long-term stability of 0.01% per 1,000 hours
- All models are manufactured with Caddock’s non-inductive design
* Dependant on selected resistor model
Typical applications for the MG precision high-voltage axial standard resistor range include:
- TWT HV power supplies
- Electron microscopes
- E-beam equipment
- Electrical distribution HV monitor dividers
- X-ray systems
- Geophysical instruments
- Medical electronics
- HV & Compact instrument probes
Additional options to the standard resistor ranges include extended resistance values and the -15 option for increased maximum operating voltages.
Caddock MG Standard Range Specification Table
Model No. | Wattage | Max voltage | Coating dielectric strength | Resistance range | Tolerance | TCR |
---|---|---|---|---|---|---|
MG650 | 0.5W | 600V | 750ACrms | 200Ω to 5MΩ | ±0.1% / ±0.25% / ±0.5% / ±1% | ±80 ppm/°C from -15°C to +105°C (Referenced to +25°C) |
MG655 | 0.5W | 600V | 750ACrms | 200Ω to 8MΩ | ±0.1% / ±0.25% / ±0.5% / ±1% | ±80 ppm/°C from -15°C to +105°C (Referenced to +25°C) |
MG660 | 0.6W | 1kV | 750ACrms | 400Ω to 10MΩ | ±0.1% / ±0.25% / ±0.5% / ±1% | ±80 ppm/°C from -15°C to +105°C (Referenced to +25°C) |
MG680 | 0.8W | 2kV | 750ACrms | 600Ω to 20MΩ | ±0.1% / ±0.25% / ±0.5% / ±1% | ±80 ppm/°C from -15°C to +105°C (Referenced to +25°C) |
MG710 | 1W | 4kV | 750ACrms | 800Ω to 50MΩ | ±0.1% / ±0.25% / ±0.5% / ±1% | ±80 ppm/°C from -15°C to +105°C (Referenced to +25°C) |
MG712 | 0.6W | 1kV | 750ACrms | 800Ω to 20MΩ | ±0.1% / ±0.25% / ±0.5% / ±1% | ±80 ppm/°C from -15°C to +105°C (Referenced to +25°C) |
MG714 | 1W | 1kV | 750ACrms | 200Ω to 20MΩ | ±0.1% / ±0.25% / ±0.5% / ±1% | ±80 ppm/°C from -15°C to +105°C (Referenced to +25°C) |
MG715 | 1W | 2kV | 750ACrms | 400Ω to 50MΩ | ±0.1% / ±0.25% / ±0.5% / ±1% | ±80 ppm/°C from -15°C to +105°C (Referenced to +25°C) |
MG716 | 1.5W | 4kV | 750ACrms | 600Ω to 75MΩ | ±0.1% / ±0.25% / ±0.5% / ±1% | ±80 ppm/°C from -15°C to +105°C (Referenced to +25°C) |
MG717 | 1.5W | 2kV | 750ACrms | 600Ω to 75MΩ | ±0.1% / ±0.25% / ±0.5% / ±1% | ±80 ppm/°C from -15°C to +105°C (Referenced to +25°C) |
MG720 | 2W | 6kV | 750ACrms | 1kΩ to 150MΩ | ±0.1% / ±0.25% / ±0.5% / ±1% | ±80 ppm/°C from -15°C to +105°C (Referenced to +25°C) |
MG721 | 2W | 4kV | 750ACrms | 200Ω to 100MΩ | ±0.1% / ±0.25% / ±0.5% / ±1% | ±80 ppm/°C from -15°C to +105°C (Referenced to +25°C) |
MG725 | 2.5W | 10kV | 750ACrms | 1.5kΩ to 200MΩ | ±0.1% / ±0.25% / ±0.5% / ±1% | ±80 ppm/°C from -15°C to +105°C (Referenced to +25°C) |
MG730 | 3W | 6kV | 1000ACrms | 500Ω to 250MΩ | ±0.1% / ±0.25% / ±0.5% / ±1% | ±80 ppm/°C from -15°C to +105°C (Referenced to +25°C) |
MG731 | 2.6W | 4kV | 1000ACrms | 200Ω to 150MΩ | ±0.1% / ±0.25% / ±0.5% / ±1% | ±80 ppm/°C from -15°C to +105°C (Referenced to +25°C) |
MG735 | 3.6W | 10kV | 1000ACrms | 750Ω to 300MΩ | ±0.1% / ±0.25% / ±0.5% / ±1% | ±80 ppm/°C from -15°C to +105°C (Referenced to +25°C) |
MG740 | 3.6W | 6kV | 1000ACrms | 300Ω to 300MΩ | ±0.1% / ±0.25% / ±0.5% / ±1% | ±80 ppm/°C from -15°C to +105°C (Referenced to +25°C) |
MG745 | 5W | 15kV | 1000ACrms | 1kΩ to 500MΩ | ±0.1% / ±0.25% / ±0.5% / ±1% | ±80 ppm/°C from -15°C to +105°C (Referenced to +25°C) |
MG750 | 5W | 10kV | 1000ACrms | 400Ω to 500MΩ | ±0.1% / ±0.25% / ±0.5% / ±1% | ±80 ppm/°C from -15°C to +105°C (Referenced to +25°C) |
MG780 | 7.5W | 15kV | 1000ACrms | 600Ω to 750MΩ | ±0.1% / ±0.25% / ±0.5% / ±1% | ±80 ppm/°C from -15°C to +105°C (Referenced to +25°C) |
MG785 | 8W | 20kV | 1000ACrms | 800Ω to 1GΩ | ±0.1% / ±0.25% / ±0.5% / ±1% | ±80 ppm/°C from -15°C to +105°C (Referenced to +25°C) |
MG810 | 10W | 25kV | 1000ACrms | 1kΩ to 1.25GΩ | ±0.1% / ±0.25% / ±0.5% / ±1% | ±80 ppm/°C from -15°C to +105°C (Referenced to +25°C) |
MG815 | 15W | 30kV | 1000ACrms | 1kΩ to 2GΩ | ±0.1% / ±0.25% / ±0.5% / ±1% | ±80 ppm/°C from -15°C to +105°C (Referenced to +25°C) |
Caddock Electronics, Inc. manufactures High Performance, High Stability Film Resistors designed for precision applications. Caddock uses unique resistance film technologies and process technologies to create solutions for performance demanding applications. Their product line consists of over 250 models, spanning a multitude of series, all of which are manufactured at their facilities in Roseburg, Oregon, USA. Please visit www.caddock.com for more information.