74

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.

Fea tures

• Wide resistance ranges

• Voltage rating to 50KV

• Power rating to 12.5 watts

• Silicone or epoxy coating

a pplica tions

• HV power supplies

• Power distribution

• Medical instrumentation

• Avionics

s peci F ica tions

Material

Core: Alumina

Resistor: Thick Film

Terminal: RoHS solder composi-

tion is 96% Sn, 3.5% Ag, 0.5%

Cu

Electrical

Resistance Range:

250

Ω 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

Temperature Coefficient:

25ppm/°C 0° to 85°C available

Maxi-Mox

precision thick Film axial terminal

High Voltage/High resistance

A

B

1.5" typ.

lead dia.

0.032" typ.

ohmite

resistance

power Voltage

available

a ± 0.015”

B max. capacitance

series

range (ohms

@70°c

rating

tolerances*

(in/mm)

(in/mm)

(pf)

• 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

0.75

MOX-2-12 500 ohms to 700,000M

5.0W

20.0KV

1% to 20%

2.120” / 53.85

0.310” / 7.87

0.60

MOX-3-12 750 ohms to 1,000,000M

7.5W

30.0KV

1% to 20%

3.120” / 79.24

0.310” / 7.87

0.50

MOX-4-12

1K to 1,000,000M

10.0W

40.0KV

1% to 20% 4.120” / 104.65 0.310” / 7.87

0.40

MOX-5-12

1.25K to 1,000,000M

12.5W

50.0KV

1% to 20% 5.120” / 130.05 0.310” / 7.87

0.30

*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

0.75

MOX-2-13 500 ohms to 700,000M

3.0W

20.0KV 0.1% to 20% 2.140” / 54.36

0.345” / 8.76

0.60

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

0.50

MOX-4-13

1K to 1,000,000M

5.0W

40.0KV 0.1% to 20% 4.140” / 105.16 0.345” / 8.76

0.40

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

0.30

ordering informa tion

Maxi Mox

Series

Terminal

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

performance da t a

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

t empera ture/Vol t age c oefficients of r esist ance

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

250

Ω-1,000M

1,001M-100,000M

MOX-2

1K-1,500M

1K-1,000M

1,001M-60,000M

500

Ω-2,600M

2,601M-200,000M

MOX-3

1K-1,500M

1K-1,500M

1,501M-90,000M

750

Ω-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 Ohmite.

100

Ambient Temperature,

°C

60

20

0

0

100

50

175

80

40

110

°

25

75

125

150

200

210

°

Epoxy

Silicone

225

70

°

dera ting

Check product availability at

www.ohmite.com