Maxi-Mox
Precision Thick Film Axial Terminal
High Voltage/High Resistance
Features aPPliCatiOns
Maxi-Mox resistors are also versatile.
Suitable for industrial applications
Wide resistance ranges HV power supplies
requiring still more power for high
Voltage rating to 50KV Power distribution
voltage switching, industrial control,
Power rating to 12.5 watts Medical instrumentation
and high voltage current limiting.
Silicone or epoxy coating Avionics
Non-inductive available
series sPeCiFiCatiOns
Ohmite Resistance Power Voltage Available Capacitance
Series Range () @70C Rating Tolerances* (pf)
High-temperature (silicone coated)
MOX-1-12 250 to 300,000M 2.5W 10.0KV 1% to 20% 0.75
MOX-2-12 500 to 700,000M 5.0W 20.0KV 1% to 20% 0.60
MOX-3-12 750 to 1,000,000M 7.5W 30.0KV 1% to 20% 0.50
MOX-4-12 1K to 1,000,000M 10.0W 40.0KV 1% to 20% 0.40
MOX-5-12 1.25K to 1,000,000M 12.5W 50.0KV 1% to 20% 0.30
Standard (epoxy coated) @25C
MOX-1-13 250 to 300,000M 2.0W 10.0KV 0.1% to 20% 0.75
MOX-2-13 500 to 700,000M 3.0W 20.0KV 0.1% to 20% 0.60
MOX-3-13 750 to 1,000,000M 4.0W 30.0KV 0.1% to 20% 0.50
MOX-4-13 1K to 1,000,000M 5.0W 40.0KV 0.1% to 20% 0.40
MOX-5-13 1.25K to 1,000,000M 6.0W 50.0KV 0.1% to 20% 0.30
*Some tolerances are not available over the entire resistance range.
CharaCteristiCs
Core Alumina
derating
Resistor Thick Film 100
70
Terminal RoHS solder composition is 96% Sn, 3.5% Ag,
80
0.5% Cu
Silicone
60
Resistance Range 250 to 1 Teraohm
Power Rating 2.0W to 12.5W
40
Epoxy
Voltage Rating 10KV to 50KV
20
110 210
Tolerance 0.5% to 20%; not all tolerances available in all
0
values
0 25 50 75 100 125 150 175 200 225
Ambient Temperature, C
Operating Temperature -55C to +210C
25ppm/C 0 to 85C available
Temperature
Coefficient
(continued)
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Percent Rated WattsMaxi-Mox
Precision Thick Film Axial Terminal
High Voltage/High Resistance
diMensiOns
Ohmite A max. B max.
A 1.5" typ.
Series Power (in/mm) (in/mm)
lead dia.
B
High-temperature (silicone coated)
0.032" typ.
MOX-1-12 2.5W 1.120 / 28.45 0.310 / 7.87
MOX-2-12 5.0W 2.120 / 53.85 0.310 / 7.87
MOX-3-12 7.5W 3.120 / 79.24 0.310 / 7.87
MOX-4-12 10.0W 4.120 / 104.65 0.310 / 7.87
MOX-5-12 12.5W 5.120 / 130.05 0.310 / 7.87
Standard (epoxy coated)
MOX-1-13 2.0W 1.140 / 28.96 0.345 / 8.76
MOX-2-13 3.0W 2.140 / 54.36 0.345 / 8.76
MOX-3-13 4.0W 3.140 / 79.76 0.345 / 8.76
MOX-4-13 5.0W 4.140 / 105.16 0.345 / 8.76
MOX-5-13 6.0W 5.140 / 130.56 0.345 / 8.76
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
teMP. and 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-99M 100M-450M 451M-30,000M 250-1,000M 1,001M-100,000M
MOX-2 1K-199M 200M-1,000M 1,001M-60,000M 500-2,600M 2,601M-200,000M
MOX-3 1K-299M 300M-1,500M 1,501M-90,000M 750-4,000M 4,001M-300,000M
MOX-4 1K-399M 400M-2,000M 2,001M-120,000M 1K-5,300M 5,301M-400,000M
MOX-5 1K-499M 500M-2,500M 2,501M-150,000M 1.25K-6,700M 6,701M-500,000M
*TCR of 25ppm for temperature range of 0C-85C. TCR of 50ppm and 100ppm for -55C to 125C. Consult factor y for TCR values operating higher than 125C
**For tighter VCs please contact Ohmite.
Ordering inFOrMatiOn
Coating
2 = Black silicone
Non-inductive
3 = Epoxy
optional 6 = No coating RoHS Compliant
MOX-1 N-131006F E Not all tolerances
available in
Maxi Mox Style Terminal Ohms Tolerance
Series 1 = 0.032" First 3 digits are D = 0.5%
1,2,3,4,5,8
all values.
significant; 4th digit is F = 1%
multiplier (# of zeroes G = 2%
to follow). Examples: J = 5%
1000 = 100 K = 10%
1503 = 150,000 M= 15%
5005 = 50,000,000 P = 20%
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