Ohmite Mfg. Co. 1600 Golf Rd., Suite 850, Rolling Meadows, IL 60008 Tel. 1-866-9-OHMITE Fax 1-847-574-7522 www.ohmite.com info@ohmite.com 71
Maxi-Mox resistors are also
versatile. Suitable for industrial
applications requiring still more
power for high voltage switch-
ing, industrial control, and high
voltage current limiting.
FEATURES
Wide resistance ranges
Voltage rating to 30.0KV
Power rating to 12.5 watts
Silicone or epoxy coating
APPLICATIONS
HV power supplies
Power distribution
Medical instrumentation
Avionics
SPECIFICATIONS
Material
Core: Alumina
Resistor: Thick Film
Electrical
Resistance Range:
1K to 1 Teraohm
Power Rating: 2.0W to 12.5W
Voltage Rating: 10KV to 50KV
Tolerance: 0.1% to 20%
Operating Temperature:
-55°C to +220°C
Temperature Coefficient:
25ppm/°C 0° to 85°C available
Maxi-Mox Resistors
Precision Thick Film Axial Lead
High Voltage/High Resistance Resistors
A
B
1.5" typ.
lead dia.
0.032" typ.
Ohmite Resistance Power Voltage Available A ± 0.015” B max.
Series Range (Ohms @70°C Rating Tolerances* (in/mm) (in/mm)
• High-temperature (silicone coated)
MOX-1-12 250 ohms to 300,000M 2.5W 10.0KV 1% to 20% 1.120” / 28.45 0.310” / 7.87
MOX-2-12 500 ohms to 700,000M 5.0W 20.0KV 1% to 20% 2.120” / 53.85 0.310” / 7.87
MOX-3-12 750 ohms to 1,000,000M 7.5W 30.0KV 1% to 20% 3.120” / 79.24 0.310” / 7.87
MOX-4-12 1K to 1,000,000M 10.0W 40.0KV 1% to 20% 4.120” / 104.65 0.310” / 7.87
MOX-5-12 1.25K to 1,000,000M 12.5W 50.0KV 1% to 20% 5.120” / 130.05 0.310” / 7.87
*Some tolerances are not available over the entire resistance range.
• Standard (epoxy coated) @25°C
MOX-1-13 250 ohms to 300,000M 2.0W 10.0KV 0.1% to 20% 1.140” / 28.96 0.345” / 8.76
MOX-2-13 500 ohms to 700,000M 3.0W 20.0KV 0.1% to 20% 2.140” / 54.36 0.345” / 8.76
MOX-3-13 750 ohms to 1,000,000M 4.0W 30.0KV 0.1% to 20% 3.140” / 79.76 0.345” / 8.76
MOX-4-13 1K to 1,000,000M 5.0W 40.0KV 0.1% to 20% 4.140” / 105.16 0.345” / 8.76
MOX-5-13 1.25K to 1,000,000M 6.0W 50.0KV 0.1% to 20% 5.140” / 130.56 0.345” / 8.76
ORDERING INFORMATION

Maxi Mox
Series
Lead
1 = 0.032"
Style
1,2,3,4,5,8
Tolerance
D = 0.5%
F = 1%
G = 2%
J = 5%
K = 10%
M = 15%
P = 20%
Coating
2 = Black silicone
3 = Epoxy
6 = No coating
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
E = RoHS compliant
Available Jan. 2006
PERFORMANCE DATA
Characteristic Test Method Specification
Humidity MIL-STD-202, Method 103B, Condition B ±0.25%
Dielectric Withstanding Voltage MIL-STD-202, Method 301, 750V ±0.25%
Insulation Resistance MIL-STD-202, Method 302, Condition A or B >10,000 M or greater dry
Thermal Shock MIL-STD-202, Method 107G, Condition B, B-1, or F ±0.20%
Load Life MIL-STD-202, Method 108A, Condition D ±1.0%
Resistance to Solvents MIL-STD-202, Method 215G Acceptable for High Reliability Series only
Terminal Strength MIL-STD-202, Method 211A, Condition A or B ±0.25%
Shock (Specified Pulse) MIL-STD-202, Method 213B, Condition I ±0.25%
Vibration High Frequency MIL-STD-202, Method 204D, Condition D ±0.20%
Power Conditioning MIL-R-49462A, Par 4.8 ±0.50%
Solderability MIL-STD-202, Method 208F >95% Coverage
TEMPERATURE/VOLTAGE COEFFICIENTS OF RESISTANCE
Temp. Coeff. of Resistance* Voltage Coeff. of Resistance**
Resistor Series 25 PPM/°C 50 PPM/°C 100 PPM/°C < 2PPM/Volt < 5PPM/Volt
MOX-1 1K-1,500M 1K-450M 451M-30,000M 250Ω-1,000M 1,001M-100,000M
MOX-2 1K-1,500M 1K-1,000M 1,001M-60,000M 500Ω-2,600M 2,601M-200,000M
MOX-3 1K-1,500M 1K-1,500M 1,501M-90,000M 750Ω-4,000M 4,001M-300,000M
MOX-4 1K-1,500M 1K-2,000M 2,001M-120,000M 1K-5,300M 5,301M-400,000M
MOX-5 1K-1,500M 1K-2,500M 2,501M-150,000M 1.25K-6,700M 6,701M-500,000M
*Epoxy: -55°C to 110°C; High Temp. Silicone: -55°C to 210°C
**For tighter VCs please contact factory.
100
Percent Rated Watts
Ambient Temperature, °C
60
20
00 10050 175
80
40
110°
25 75 125 150 200
210°
Epoxy
Silicone
225
70°
DERATING