super Mox series
High Voltage
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
Power
Rating (W)
3.9
4.6
7.8
11.7
12.5
15.5
19.4
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.
s e r i e s s P e c i F i c at i O N s
Series
MOX910
MOX920
MOX930
MOX940
MOX950
MOX960
MOX970
Max. Oper.
Voltage
9.4Kv
13.8Kv
20Kv
30Kv
40Kv
50Kv
60Kv
* typical values, contact factory for details
Res. Range† (Ω)
600Ω-500M
500M-10G
500Ω-1G
1G-50G
400Ω-1G5
1G5-50G
600Ω-2G5
2G5-50G
800Ω-3G
3G-50G
1M-4G
4G-50G
1M-5G
5G-50G
VCR*
0.40
0.75
0.20
0.40
0.15
0.30
0.10
0.15
0.08
0.12
0.06
0.10
0.04
0.08
† Contact factory for values outside of the listed resistance range
characteristics
Tolerances
0.10%, 0.25%, 0.5%, 1% (others on request)
Temperature
5, 10, 25, 50 and 100ppm/°C (5ppm available from
Coefficients
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
Gold Plated
Material
Core Material
Al
2
O
3
(96%)
Resistor
Ruthenium Oxide
Material
Operating
-55°C to 225°C
Temperature
Insulation
>10,000 MΩ
Resistance
Dielectric
>1,000 Volt
Strength
Thermal
∆ R/R < 0.1% typ.,
Shock
0.20% max.
Overload
∆ R/R < 0.1% typ.,
0.25% max.
Moisture
∆ R/R < 0.1% typ.,
Resistance
0.25% max.
Load Life
∆ R/R < 0.2% typ.,
0.5% max.
500 Volt 25 °C 75% relative
humidity
25 °C 75% relative humidity
MIL Std. 202, method 107
Cond. C (IEC 68 -2 -14)
1,5 x Pnom, 5 sec (do not
exceed max. voltage)
MIL Std. 202, method 106
(IEC 68 -2 -3)
1000 hours at rated power
(IEC 115 -1)
Derating
100
Percent Rated Watts
80
60
40
20
0
-50
225°
0
50
100 150 200
Ambient Temperature,
°C
250
70°
(continued)
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super Mox series
High Voltage
(in./mm ±0.5mm)
diMeNsiONs
Series
L
1.07" / 27.2mm
1.56" / 39.5mm
3.06" / 77.6mm
2.05" / 52mm
MOX910
1.38" /
35mm
±
2
L
0.32" /
8.2mm
1mm
MOX920
MOX930
MOX940
MOX950 4.06" / 103.2mm
MOX960 4.87" / 123.7mm
MOX970 6.05" / 153.7mm
O r d e r i N g i N F O r M at i O N
Coating
2 = conformal silicone standard
E = RoHS compliant
MOX91021006JTE
Super Mox Series
see chart for wattage
*Extremely tight tolerances
and TCRs not available
across the full resistance
range. Consult factory.
Ohms
First 3 digits are
significant; 4th digit is
multiplier (# of zeroes
to follow). Examples:
1001 = 1000Ω
1503 = 150,000Ω
1006 = 100 MΩ
Tolerance*
B = 0.10%
C = 0.25%
D = 0.5%
F = 1%
TCR*
T = 100ppm
V = 50ppm
W = 25ppm
X = 15ppm
Y = 10ppm
A =
5ppm
Part Number
MOX91021004FVE
MOX91025004FVE
MOX91021005FVE
MOX91022505FTE
Watts
3.9W
3.9W
3.9W
3.9W
Ohms
1% tol.
1M
5M
10M
25M
TCR
50ppm
50ppm
50ppm
100ppm
MOX92021005FVE
MOX92025005FVE
MOX92021006FVE
MOX92021007FTE
MOX93021004FVE
MOX93025004FVE
MOX93021005FVE
MOX93022505FTE
4.6W
4.6W
4.6W
4.6W
MOX97021004FVE
MOX97025004FVE
MOX97021005FVE
MOX97022505FTE
MOX96021005FVE
MOX96025005FVE
MOX96021006FVE
MOX96021007FTE
MOX95021004FVE
MOX95025004FVE
MOX95021005FVE
MOX95022505FTE
MOX94021005FVE
MOX94025005FVE
MOX94021006FVE
MOX94021007FTE
19.4W
19.4W
19.4W
19.4W
15.5W
15.5W
15.5W
15.5W
12.5W
12.5W
12.5W
12.5W
11.7W
11.7W
11.7W
11.7W
7.8W
7.8W
7.8W
7.8W
10M
50M
100M
1000M
10M
50M
100M
1000M
1M
5M
10M
25M
1M
5M
10M
25M
50ppm
50ppm
50ppm
100ppm
10M
50M
100M
1000M
1M
5M
10M
25M
50ppm
50ppm
50ppm
100ppm
50ppm
50ppm
50ppm
100ppm
50ppm
50ppm
50ppm
100ppm
50ppm
50ppm
50ppm
100ppm
50ppm
50ppm
50ppm
100ppm
rev 2/18-1
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
79