FeaTuRes
• Wide resistance ranges • Outstanding voltage coefficient • 0.4” diameter ferrule, 0.25”-20 threaded end cap, or radial bands available • Metal oxide resistive elements
aPPlicaTions
• • • • • Power Transmitters Pollution Control Systems Industrial Control Systems Current pulse limiters Vacuum and space application
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.
Precision Power Thick Film High Voltage/High Resistance Tubular
A B 0.5" typ.
Power-Mox
sPeciFicaTions
Material Core: Ceramic. Coating: Varnish Electrical Resistance Range: 20K to 1,000,000M Power Rating: to 75W Voltage Rating: to 60KV Operating Temperature: -65°C to +180°C Temperature Coefficient: 25ppm: 0° to 85°C; 50ppm -55° to 180°C
ohmite Resistance series Range (ohms) MOX-F 1K to 800,000M MOX-G 1.5K to 1,000,000M MOX-H 2K to 1,000,000M MOX-J 3K to 1,000,000M
Power @25°c 25W 40W 50W 75W
Voltage Rating 20KV 30KV 45KV 60KV
available Tolerances 0.5, 1, 2, 5 0.5, 1, 2, 5 0.5, 1, 2, 5 0.5, 1, 2, 5
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
Some tolerances are not available over the entire resistance range.
O R d E R i N g i N f O R M AT i O N
Style F, G, H, J E = RoHS Compliant
MOX-J-041006FE
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%
100 25° 80 Percent Rated Watts
Precision Power Thick Film High Voltage/High Resistance Tubular Dividers
Power-Mox Dividers
Maximum Ratio Ratio Tolerances 5,000:1 1, 2, 5% 5,000:1 1, 2, 5% 5,000:1 1, 2, 5% 5,000:1 1, 2, 5% 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
60
40
20 180° 0 0 50 100 150 200
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
Ambient Temperature, °C
P O W E R - M O X A LT E R N AT 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 Ohmite Mfg. Co. 1600 Golf Rd., Rolling Meadows, IL 60008 • 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com 75
