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CHARACTERISTICS
SERIES SPECIFICATIONS
Super Mox Series
High Voltage
Insulation
Resistance
>10,000 MΩ 500 Volt 25 °C 75% relative
humidity
Dielectric
Strength
>1,000 Volt 25 °C 75% relative humidity
Thermal
Shock
∆ R/R < 0.1% typ.,
0.20% max.
MIL Std. 202, method 107
Cond. C (IEC 68 -2 -14)
Overload
∆ R/R < 0.1% typ.,
0.25% max.
1,5 x Pnom, 5 sec (do not
exceed max. voltage)
Moisture
Resistance
∆ R/R < 0.1% typ.,
0.25% max.
MIL Std. 202, method 106
(IEC 68 -2 -3)
Load Life
∆ R/R < 0.2% typ.,
0.5% max.
1000 hours at rated power
(IEC 115 -1)
Tolerances
0.10%, 0.25%, 0.5%, 1% (others on request)
Temperature
Coefficients
5, 10, 25, 50 and 100ppm/°C (5ppm available from
20K to 10G, except MOX910, other on on request).
Temperature coefficient referenced to 25°C, ΔR
taken at +85°C.
Encapsulation
Silicone Conformal Coating
Terminal
Material
Gold Plated
Core Material
Al
2O3 (96%)
Resistor
Material
Ruthenium Oxide
Operating
Temperature
-55°C to 225°C
Power Max. Oper.
Series Rating (W) Voltage Res. Range† (Ω) VCR*
MOX910 3.9 9.4Kv 600Ω-500M 0.40
500M-10G 0.75
MOX920 4.6 13.8Kv 500Ω-1G 0.20
1G-50G 0.40
MOX930 7.8 20Kv 400Ω-1G5 0.15
1G5-50G 0.30
MOX940 11.7 30Kv 600Ω-2G5 0.10
2G5-50G 0.15
MOX950 12.5 40Kv 800Ω-3G 0.08
3G-50G 0.12
MOX960 15.5 50Kv 1M-4G 0.06
4G-50G 0.10
MOX970 19.4 60Kv 1M-5G 0.04
5G-50G 0.08
* typical values, contact factory for details
† Contact factory for values outside of the listed resistance range
Derating
100
Percent Rated Watts
Ambient Temperature, °C
60
20
0
150
80
40
100050-50 250200
70°
225°
High-voltage Super Mox resistors have been devel-
oped to meet the precision temperature stability
requirements of high-accuracy and high-voltage
systems. Super Mox combines proprietary non-
inductive resistance system and design to achieve
low temperature coefficient, low voltage coefficients,
high stability and increased high operating voltages.
These resistors are designed to meet the demanding
Uncoated resistor element pictured for
demonstration purposes only. Finished
product is coated with silicone.
requirements of high voltage power supplies, elec-
tron microscopes, X-ray systems, high resolution
CRT displays and geophysical instruments.
(continued)
