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High Resistance Resistors:Type MX0 pages
Type MX Precision High Voltage Resistors
Cost Effective High Voltage Resistors for Industrial and General Purpose Applications
The Type MX Precision High Voltage Resistors were
specifically developed for use in industrial and general purpose
high voltage systems. These resistors combine the proven
performance of Caddock's Micronox ® resistance system
with new cost efficient design elements. These resistors
are intended for the design of high voltage systems where
the system is not exposed to full military or space grade
operating conditions. For full military or space grade operating
conditions, we recommend Caddock's Type TG Low TC
Precision High Voltage Resistors or Type MG Precision
High Voltage Resistors.
The performance features of the Type MX Precision High
Voltage Resistors are:
• Five Models with Voltage Ratings from 7.5 KV to 32 KV.
• Temperature Coefficient: 80 ppm/°C from 0°C to +70°C.
• Load Life Stability of 0.50% per 1,000 hours.
• Resistance Tolerance: 1% Standard.
• Non-Inductive Design.
• Resistance Range from 1 Megohm to 1,000 Megohms.
MX431
MX440
MX450
MX 480
MX 485
Resistance
Model
No.
Wattage
Max.
Continuous
Oper. Volt.
TC
ppm/
°C
MX431
2.0
7,500
80
1 Meg
MX440
3.5
11,000
80
1.5 Meg
MX450
5.0
16,000
80
2 Meg
MX480
7.5
24,000
80
3 Meg
MX485
10.0
32,000
80
4 Meg
Min.
Dimensions in inches and (millimeters)
Max.
B
A
.940 ±.040
(23.88 ±1.02)
1.450 ±.040
300 Meg
(36.83 ±1.02)
2.080 ±.040
500 Meg
(52.83 ±1.02)
3.080 ±.050
750 Meg
(78.23 ±1.27)
3.940 ±.050
1,000 Meg
(100.08 ±1.27)
150 Meg
C
.270 ±.020
(6.86 ±.51)
.270 ±.020
(6.86 ±.51)
.270 ±.020
(6.86 ±.51)
.270 ±.020
(6.86 ±.51)
.270 ±.020
(6.86 ±.51)
.040 ±.002
(1.02 ±.05)
.040 ±.002
(1.02 ±.05)
.040 ±.002
(1.02 ±.05)
.040 ±.002
(1.02 ±.05)
.040 ±.002
(1.02 ±.05)
Type MX Resistors Utilize Caddock's Patented Coating Design
Type MX Precision High Voltage
Resistors combine Caddock’s
Non-Inductive serpentine pattern
with a patented, high thru-put
screen printed silicone coating.
The alignment of the gap in the
coating pattern with the gap
in the serpentine resistor pattern
provides a complete encapsulation
of the resistor element. The cap
and lead assemblies are pressed
onto the resistor core, finishing
the resistor and providing rugged
terminal attachment.
Ordering Information:
Model Number:
Resistor Value:
Applications Engineering
17271 North Umpqua Hwy.
Roseburg, Oregon 97470-9422
Phone: (541) 496-0700
Fax: (541) 496-0408
© 2010 Caddock Electronics, Inc.
Standard Resistance Values:
1% tolerance standard
1.00
2.00
2.50
5.00
Megt
Meg
Meg
Meg
10.0
20.0
25.0
50.0
Megt
Meg
Meg
Meg
100
200
250
500
Megt
Meg
Meg
Meg
1000 Megt
Non-standard (custom) resistance values are
available. Please contact Caddock Applications
Engineering.
Specifications:.
Temperature Coefficient: 80 ppm/°C referenced to
+25°C, ∆R taken at 0°C and +70°C.
Thermal Shock: Mil-Std-202, Method 107,
Cond. A, ∆R, 0.20% max.
Moisture Resistance: Mil-Std-202, Method 106,
∆R, 1.0% max.
Load Life: 1,000 hours at rated voltage at +70°C,
not to exceed rated power, ∆R, 0.50% max.
Lead Material: Tinned copper clad steel,
solderable.
Encapsulation: Screen printed high temperature
silicone coating over resistor element.
B
A
1.500 ± .125
(38.10 ± 3.18)
C
DIMENSIONS IN INCHES AND (MILLIMETERS)
MX485 -100M - 1%
Tolerance
100
80
RATED POWER OR 60
RATED VOLTAGE, % 40
20
0
Derating Curve:
ELECTRONICS, INC.
e-mail: caddock@caddock.com • web: www.caddock.com
For Caddock Distributors listed by country see caddock.com/contact/dist.html
25
70
175
AMBIENT TEMPERATURE, °C
Sales and Corporate Office
1717 Chicago Avenue
Riverside, California 92507-2364
Phone: (951) 788-1700
Fax: (951) 369-1151
28_IL113.0610
