Power-Mox
Precision Power Thick Film
The heavy duty construction of the Power-Mox
High Voltage/High Resistance Tubular
series make them durable in most high voltage
industrial applications. This product is well known
Non inductive
version shown
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.
Features
aPPlications
Wide resistance ranges
Power Transmitters
Outstanding voltage coefficient
Pollution Control Systems
0.4 diameter ferrule, 0.25-20 threaded end cap, or
Industrial Control Systems
radial bands available
Current pulse limiters
Metal oxide resistive elements
Vacuum and space application
series sPeciFications
Ohmite Resistance Power Voltage Available
Series Range (Ohms) @25C Rating Tolerances*
MOX-F 1K to 800,000M 25W 20KV 0.5, 1, 2, 5%
MOX-G 1.5K to 1,000,000M 40W 30KV 0.5, 1, 2, 5%
MOX-H 2K to 1,000,000M 50W 45KV 0.5, 1, 2, 5%
MOX-J 3K to 1,000,000M 75W 60KV 0.5, 1, 2, 5%
*Some tolerances are not available over the entire resistance range
characteristics DiMensions
(in./mm) A
Core Ceramic
Coating Varnish
B
Resistance Range 1K to 1,000,000M
0.5" typ.
to 75W
Power Rating
Ohmite Power A B
Series @25C 0.05 Max
Voltage Rating to 60KV
MOX-F 25W 3.0" / 76.2 0.770" / 19.56
Operating Temperature -65C to +180C
MOX-G 40W 4.5" / 114.3 0.770" / 19.56
Temperature Coefficient 25ppm: 0 to 85C;
MOX-H 50W 6.0" / 152.4 0.770" / 19.56
50ppm: -55 to 180C
MOX-J 75W 8.0" / 203.2 0.770" / 19.56
orDering inForMation
Style
Non-inductive E = RoHS Compliant
F, G, H, J
MOX-J N -041006F E
Tolerance
Power Mox Terminal Ohms
D= 0.5%
Series 01 = Silver termination only First 3 digits are
F= 1%
02 = Radial band significant; 4th digit is
G= 2%
03 = 0.4" Ferrule multiplier (# of zeroes
J= 5%
04 = 1/4 X 20 threaded to follow). Examples:
K= 10%
Ferrule cap 10R2 = 10.2 ohms
M= 15%
1000 = 100 ohms
P= 20%
1503 = 150,000 ohms
1-866-9-OHMITE Intl 1-847-258-0300 Fax 1-847-574-7522 www.ohmite.com info@ohmite.com 123Power-Mox Dividers
Precision Power Thick Film
High Voltage/High Resistance Tubular Dividers
series sPeciFications
(dimensions as for Power-Mox)
Derating
Ohmite Resistance Power Voltage Maximum Ratio
100
Series Range (Ohms) @25C Rating Ratio Tolerances
25
MOX-FRD 20K to 2,500M 15W 15KV 5,000:1 1, 2, 5%
80
MOX-GRD 20K to 4,000M 30W 25KV 5,000:1 1, 2, 5%
MOX-HRD 20K to 6,000M 40W 35KV 5,000:1 1, 2, 5%
60
MOX-JRD 20K to 6,000M 60W 50KV 5,000:1 1, 2, 5%
40
20
180
0
0 50 100 150 200
Ambient Temperature, C
PoWer-MoX alternate terMinals
01 Lead 02 Lead 03 Lead 04 Lead
Power-Mox RD Series Power-Mox Series with Power-Mox Series Power-Mox Series with
with silver terminations radial band option with Ferrule end caps 1/4 - 20 threaded end caps
no. 6-32 x 0.25" screw 1/4-20 threads
A 0.825" max.
no. 6-32 hex nut (2 places)
0.25"
0.89" 0.4"
B
0.75"
B A+0.12" A +0.15" max.
A+0.96" A +0.55" max.
A
0.5" typ. 1.5" typ.
To specify Power-Mox Dividers, please see our website at:
www.ohmite.com/dividers
orDering inForMation
A complete description of the Power-MOX Divider is
required. EXAMPLE:
RT = 500M 5%
R1 = 499.5M 5%
R2 = 500K 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 Intl 1-847-258-0300 Fax 1-847-574-7522 www.ohmite.com info@ohmite.com
Percent Rated Watts