Ohmite Mfg. Co.
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
65
ORDERING INFORMATION
The Mini-Mox resistor is very
versatile, covering a wide
resistance range as well as a
wide range of operating volt-
ages. Provided with tolerances
down to 0.1%, the Mini-Mox
resistor works well in precision
circuits.
SPECIFICATIONS
Material
Resistor:
Metal Oxide
Coating:
Silicone
Core:
Alumina
Terminals:
Solder-coated axial
lead
Electrical
Resistance Range:
250
Ω
to 1 Teraohm
Power Rating:
0.25W to 1.5W
Voltage Rating:
500V to 7.5KV
Tolerance:
0.1% to 20%
Operating Temperature:
-55°C to +220°C
Temperature Coefficient:
25ppm/°C 0° to 85°C available
Mini-Mox Resistors
Precision Thick Film Axial Lead
High Voltage/High Resistance Resistors
FEATURES
•
Wide resistance ranges
•
Silicone or epoxy coating
•
Metal oxide resistive element
APPLICATIONS
•
Avionics
•
Medical electronics
•
High gain feedback applications
•
Current pulse limiters
•
Vacuum and space application
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-400-22
MOX-400-22
500
500
Ω
to 300,000M
to 300,000M
0.35W
0.35W
2,500V
2,500V
1% to 20%
1% to 20%
0.520” /
0.520” /
13.21
13.21
0.140” /
0.140” /
3.56
3.56
MOX-750-22
750
Ω
to 600,000M
0.70W
5,000V
1% to 20%
0.820” /
20.83
0.140” /
3.56
MOX1125-22
MOX1125-22
1K to 1,000,000M
1K to 1,000,000M
1.40W
1.40W
7,500V
7,500V
1% to 20%
1% to 20%
1.210” /
1.210” /
30.73
30.73
0.140” /
0.140” /
3.56
3.56
*Some tolerances are not available over the entire resistance range.
• Standard (epoxy coated)
@25°C
MOX-400-23
MOX-400-23
500
500
Ω
to 300,000M
to 300,000M
0.75W
0.75W
2,500V
2,500V
0.25% to 20%
0.25% to 20%
0.580” /
0.580” /
14.78
14.78
0.165” /
0.165” /
4.19
4.19
MOX-750-23
1K to 600,000M
1.00W
5,000V
0.25% to 20%
0.880” /
22.35
0.165” /
4.19
MOX1125-23
MOX1125-23
1K to 1,000,000M
1K to 1,000,000M
1.50W
1.50W
7,500V
7,500V
0.25% to 20%
0.25% to 20%
1.270” /
1.270” /
32.26
32.26
0.165” /
0.165” /
4.19
4.19
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
>10,000M 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
±2.0%
Resistance to Solvents
MIL-STD-202, Method 215G
Acceptable for the Standard 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
±.020%
Power Conditioning
MIL-R-49462A, Par 4.8
±0.50%
Solderability
MIL-STD-202, Method 208F
>95% Coverage
STANDARD 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-400
1K-1,500M
1K-450M
451M-30,000M
1K-1,000M
1,001M-100,000M
MOX-750
1K-1,500M
1K-900M
901M-70,000M
1K-2,000M
2,001M-100,000M
MOX1125
1K-1,500M
1K-1,350M
1,351M-100,000M
1K-3,000M
3,001M-100,000M
*Epoxy: -55°C to 110°C; High Temp. Silicone: -55°C to 210°C
**For tighter VCs please contact factory.
A
B1.5" typ.
lead dia.
0.020" typ.
Mini Mox
Series
Lead
0 = MOX-200 or 300;
MOX-200 Z or 300 Z = 50ppm
2 = 0.020"
7 = 0.032"
Style
200, 300, 400,
750, 1125
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
DERATING
100
Percent Rated W
atts
Ambient
Te
mperature,
°
C
60
20
0
0
100
50
175
80
40
11
0
°
25
75
125
150
200
210
°
Epoxy
Epoxy
Silicone
Silicone
225
70
°
°
