Power-Mox
Non inductive
version shown
Precision Power Thick Film
High Voltage/High Resistance Tubular
The heavy duty construction of the Power-Mox
series make them durable in most high voltage
industrial applications. This product is well known
for its high voltage ratings, low voltage coefficients,
very high ohmic values, and resistor divider options.
Terminations can be selected to adapt to most
mounting schemes.
F e at u r e s
a P P l i c at i o n s
• Power Transmitters
• Pollution Control Systems
• Industrial Control Systems
• Current pulse limiters
• Vacuum and space application
• Wide resistance ranges
• Outstanding voltage coefficient
• 0.4” diameter ferrule, 0.25”-20 threaded end cap, or
radial bands available
• Metal oxide resistive elements
s e r i e s s P e c i F i c at i o n s
Ohmite
Series
MOX-F
MOX-G
MOX-H
MOX-J
Resistance
Power
Voltage
Available
Range (Ohms)
@25°C
Rating
Tolerances*
1K to 800,000M
25W
20KV
0.5, 1, 2, 5%
1.5K to 1,000,000M
40W
30KV
0.5, 1, 2, 5%
2K to 1,000,000M
50W
45KV
0.5, 1, 2, 5%
3K to 1,000,000M
75W
60KV
0.5, 1, 2, 5%
*Some tolerances are not available over the entire resistance range
DiMensions
characteristics
Resistance Range
1K to 1,000,000M
Voltage Rating
to 60KV
Power Rating
to 75W
Ohmite
Power
Series
@25°C
MOX-F 25W
MOX-G 40W
MOX-H 50W
MOX-J
75W
Coating
Varnish
Core
Ceramic
(in./mm)
B
A
Temperature Coefficient
25ppm: 0° to 85°C;
50ppm: -55° to 180°C
Operating Temperature
-65°C to +180°C
0.5" typ.
A
± 0.05
3.0" /
76.2
4.5" /
114.3
6.0" /
152.4
8.0" /
203.2
B
Max
0.770" /
19.56
0.770" /
19.56
0.770" /
19.56
0.770" /
19.56
o r D e r i n g i n F o r M at i o n
Style
F, G, H, J
Non-inductive
E = RoHS Compliant
M O X - J
N-
0 4 1 0 0 6 F
E
Power Mox
Series
Terminal
01 = Silver termination only
02 = Radial band
03 = 0.4" Ferrule
04 = 1/4 X 20 threaded
Ferrule cap
Ohms
First 3 digits are
significant; 4th digit is
multiplier (# of zeroes
to follow). Examples:
10R2 = 10.2 ohms
1000 = 100 ohms
1503 = 150,000 ohms
Tolerance
D = 0.5%
F = 1%
G = 2%
J = 5%
K = 10%
M = 15%
P = 20%
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
123
Power-Mox Dividers
Precision Power Thick Film
High Voltage/High Resistance Tubular Dividers
(dimensions as for Power-Mox)
Ohmite
Series
MOX-FRD
MOX-GRD
MOX-HRD
MOX-JRD
Resistance
Range (Ohms)
20K to 2,500M
20K to 4,000M
20K to 6,000M
20K to 6,000M
Power
@25°C
15W
30W
40W
60W
Voltage
Rating
15KV
25KV
35KV
50KV
Maximum
Ratio
5,000:1
5,000:1
5,000:1
5,000:1
Ratio
Tolerances
1, 2, 5%
1, 2, 5%
1, 2, 5%
1, 2, 5%
s e r i e s s P e c i F i c at i o n s
D e r at i n g
100
25°
80
Percent Rated Watts
60
40
20
180°
0
50
100
150
200
0
Ambient Temperature,
°C
P o W e r - M o X a lt e r n a t e t e r M i n a l s
“01” Lead
“Power-Mox RD” Series
with silver terminations
“02” Lead
“Power-Mox” Series with
radial band option
no. 6-32 x 0.25" screw
no. 6-32 hex nut
0.75"
B
0.25"
0.89"
A+0.12"
A+0.96"
0.4"
“03” Lead
“Power-Mox” Series
with Ferrule end caps
“04” Lead
“Power-Mox” Series with
1/4 - 20 threaded end caps
0.825" max.
1/4-20 threads
(2 places)
A
B
0.5" typ.
1.5" typ.
A
A
+0.15" max.
A
+0.55" max.
To specify Power-Mox Dividers, please see our website at:
www.ohmite.com/dividers
o r D e r i n g i n F o r M at i o n
A complete description of the Power-MOX Divider is
required. EXAMPLE:
RT = 500MΩ 5%
R1 = 499.5MΩ 5%
R2 = 500KΩ 1%
Ratio = RT / R2 = 1,000: 1, 1%
To specify Power-Mox Dividers, please see our web-
site at
www.ohmite.com/dividers. Contact Ohmite
for custom configurations.
124
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
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