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.
Maxi-Mox
Precision Thick Film Axial Terminal
High Voltage/High Resistance
F E A T U R E S
A
1.5" typ.
• Wide resistance ranges
• Voltage rating to 50KV
• Power rating to 12.5 watts
• Silicone or epoxy coating
lead dia.
0.032" typ.
B
Ohmite
Series
Resistance
Range (Ohms
Power Voltage
Available
A ± 0.015”
(in/mm)
B max. Capacitance
(in/mm) (pf)
A P P L I C A T I O N S
@70°C Rating Tolerances*
• HV power supplies
• Power distribution
• Medical instrumentation
• Avionics
• High-temperature (silicone coated)
MOX-1-12 250 ohms to 300,000M
MOX-2-12 500 ohms to 700,000M
MOX-3-12 750 ohms to 1,000,000M
2.5W 10.0KV
5.0W 20.0KV
7.5W 30.0KV
10.0W 40.0KV
12.5W 50.0KV
1% to 20% 1.120” / 28.45 0.310” / 7.87 0.75
1% to 20% 2.120” / 53.85 0.310” / 7.87 0.60
1% to 20% 3.120” / 79.24 0.310” / 7.87 0.50
1% to 20% 4.120” / 104.65 0.310” / 7.87 0.40
1% to 20% 5.120” / 130.05 0.310” / 7.87 0.30
MOX-4-12
1K to 1,000,000M
S P E C I F I C A T I O N S
Material
Core: Alumina
Resistor: Thick Film
MOX-5-12 1.25K to 1,000,000M
*Some tolerances are not available over the entire resistance range.
• Standard (epoxy coated)
@25°C
MOX-1-13 250 ohms to 300,000M
MOX-2-13 500 ohms to 700,000M
MOX-3-13 750 ohms to 1,000,000M
2.0W 10.0KV 0.1% to 20% 1.140” / 28.96 0.345” / 8.76 0.75
3.0W 20.0KV 0.1% to 20% 2.140” / 54.36 0.345” / 8.76 0.60
4.0W 30.0KV 0.1% to 20% 3.140” / 79.76 0.345” / 8.76 0.50
5.0W 40.0KV 0.1% to 20% 4.140” / 105.16 0.345” / 8.76 0.40
6.0W 50.0KV 0.1% to 20% 5.140” / 130.56 0.345” / 8.76 0.30
Electrical
Resistance Range:
250Ω to 1 Teraohm
Power Rating: 2.0W to 12.5W
Voltage Rating: 10KV to 50KV
Tolerance: 0.5% to 20%
Operating Temperature:
-55°C to +210°C
MOX-4-13
1K to 1,000,000M
MOX-5-13 1.25K to 1,000,000M
T E M P E R AT U R E / V O LTA G E C O E F F I C I E N T S O F R E S I S TA N C E
Temperature Coefficient:
25ppm/°C 0° to 85°C available
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
MOX-2
MOX-3
MOX-4
MOX-5
1K-1,500M
1K-1,500M
1K-1,500M
1K-1,500M
1K-1,500M
1K-450M
1K-1,000M
1K-1,500M
1K-2,000M
1K-2,500M
451M-30,000M
1,001M-60,000M
1,501M-90,000M
2,001M-120,000M
2,501M-150,000M
250Ω-1,000M
500Ω-2,600M
750Ω-4,000M
1K-5,300M
1,001M-100,000M
2,601M-200,000M
4,001M-300,000M
5,301M-400,000M
6,701M-500,000M
1.25K-6,700M
*Epoxy: -55°C to 110°C; High Temp. Silicone: -55°C to 210°C
**For tighter VCs please contact Ohmite.
P E R F O R M A N C E D ATA
Characteristic
Test Method
Specification
Humidity
MIL-STD-202, Method 103B, Condition B
MIL-STD-202, Method 301, 750V
±0.25%
±0.25%
Dielectric Withstanding Voltage
Insulation Resistance
Thermal Shock
MIL-STD-202, Method 302, Condition A or B
MIL-STD-202, Method 107G, Condition B, B-1, or F
MIL-STD-202, Method 108A, Condition D
>10,000 M or greater dry
±0.20%
±1.0%
Load Life
Resistance to Solvents
Terminal Strength
Shock (Specified Pulse)
Vibration High Frequency
Power Conditioning
Solderability
MIL-STD-202, Method 215G
Acceptable for High Reliability Series only
MIL-STD-202, Method 211A, Condition A or B
MIL-STD-202, Method 213B, Condition I
MIL-STD-202, Method 204D, Condition D
MIL-R-49462A, Par 4.8
±0.25%
±0.25%
±0.20%
±0.50%
MIL-STD-202, Method 208F
>95% Coverage
D E R A T I N G
O R D E R I N G I N F O R M AT I O N
100
Coating
2 = Black silicone
70°
Style
1,2,3,4,5,8
3 = Epoxy
80
6 = No coating
E = RoHS Compliant
Silicone
60
40
20
0
M O X - 1 - 1 3 1 0 0 6 F E
Tolerance
D = 0.5%
F = 1%
G = 2%
Maxi Mox
Series
Terminal
Ohms
1 = 0.032"
First 3 digits are
Epoxy
significant; 4th digit is
multiplier (# of zeroes
to follow). Examples:
10R2 = 10.2 ohms
1000 = 100 ohms
1503 = 150,000 ohms
J
= 5%
K = 10%
M = 15%
P = 20%
110°
210°
0
25
50
75
100
125
150
175
200
225
Ambient Temperature, °C
Check product availability at www.ohmite.com
74
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