CADKDOC
T*e MG Precision High Voltage Resistors
Specifications:
Resistance Tolerance:
Resistance Range
Tolerance±1%±1%, ±0.5%, ±0.25%, ±0.1%StandardSt'd with "-15" ratingExtended Range±1%Resistance RangeOverload/Overvoltage, ΔRN/A0.5% max.StandardSt'd with "-15" ratingExtended Range0.8% max.
Models with low inductance construction are in shaded areas.
Models with Caddock's Non-Inductive Resistance Pattern are in non-shaded areas.
Standard and
St'd with "-15"rating±80 ppm/°C from +25°C to +105°C,-200 ppm/°C to +50 ppm/°C from-15°C to +25°C.ResistanceRange±80 ppm/°C from -15°C to +105°C,referenced to +25°C.TC SpecificationsExtendedRangeResistance RangeLoad Life, ΔR0.8% max.0.5% max.StandardSt'd with "-15" ratingExtended Range0.8% max.Dielect.StrengthMax.ContinuousOper. Volt.Watt-ageModelNo.ABCDimensions in inches and (millimeters)ResistanceStandardMax.ExtendedMax.Min.MG650 .313 ±.020(7.95 ±.51) .094 ±.015(2.39 ±.38).025 ±.002(.64 ±.05)MG655 .313 ±.030(7.95 ±.76) .109 ±.025(2.77 ±.64).025 ±.002(.64 ±.05)MG660 .500 ±.030(12.70 ±.76) .094 ±.015(2.39 ±.38).025 ±.002(.64 ±.05)MG680 .750 ±.030(19.05 ±.76) .094 ±.015(2.39 ±.38).025 ±.002(.64 ±.05)MG7101.000 ±.040(25.40 ±1.02) .094 ±.015(2.39 ±.38).025 ±.002(.64 ±.05)MG712 .400 ±.060(10.16 ±.152) .140 ±.030(3.56 ±.76).025 ±.002(.64 ±.05)MG714 .562 ±.060(14.27 ±1.52) .150 ±.030(3.81 ±.76).032 ±.002(.81 ±.05)MG715 .750 ±.060(19.05 ±1.52) .140 ±.030(3.56 ±.76).025 ±.002(.64 ±.05)MG7161.000 ±.060(25.40 ±1.52) .140 ±.030(3.56 ±.76).025 ±.002(.64 ±.05)MG717 .710 ±.050(18.03 ±1.27) .240 ±.030(6.10 ±.76) .040 ±.002(1.02 ±.05)MG7201.500 ±.080(38.10 ±2.03) .140 ±.030(3.56 ±.76).025 ±.002(.64 ±.05)MG7211.000 ±.050(25.40 ±1.27) .240 ±.030(6.10 ±.76) .040 ±.002(1.02 ±.05)MG7252.000 ±.080(50.80 ±2.03) .140 ±.030(3.56 ±.76).025 ±.002(.64 ±.05)MG7301.500 ±.080(38.10 ±2.03) .240 ±.030(6.10 ±.76) .040 ±.002(1.02 ±.05)MG7311.000 ±.060(25.40 ±1.52) .315 ±.030(8.00 ±.76) .040 ±.002(1.02 ±.05)MG7352.000 ±.080(50.80 ±2.03) .240 ±.030(6.10 ±.76) .040 ±.002(1.02 ±.05)MG7401.500 ±.060(38.10 ±1.52) .315 ±.030(8.00 ±.76) .040 ±.002(1.02 ±.05)MG7453.000 ±.100(76.20 ±2.54) .240 ±.030(6.10 ±.76) .040 ±.002(1.02 ±.05)MG7502.125 ±.060(53.98 ±1.52) .315 ±.030(8.00 ±.76) .040 ±.002(1.02 ±.05)MG7803.125 ±.060(79.38 ±1.52) .315 ±.030(8.00 ±.76) .040 ±.002(1.02 ±.05)MG785 4.000 ±.120(101.60 ±3.05) .315 ±.030(8.00 ±.76) .040 ±.002(1.02 ±.05)MG810 5.000 ±.120(127.00 ±3.05) .315 ±.030(8.00 ±.76) .040 ±.002(1.02 ±.05)MG815 6.000 ±.120(152.40 ±3.05).350 ±.040(8.89 ±1.02) .040 ±.002(1.02 ±.05)0.50.50.60.81.00.61.01.01.51.52.02.02.53.02.63.63.65.05.07.58.010.015.,0002,0004,0001,0001,0002,0004,0002,0006,0004,0000,0006,0004,00010,0006,00015,00010,00015,00020,00025,00030,5,0001,0001,0001,0001,,0001,0001,0001,000200 Ω200 Ω400 Ω600 Ω800 Ω800 Ω200 Ω400 Ω600 Ω600 Ω1 K200 Ω1.5 K500 Ω200 Ω750 Ω300 Ω1 K400 Ω600 Ω800 Ω1 K1 K 5 Meg 8 Meg 10 Meg 20 Meg 50 Meg 20 Meg 20 Meg 50 Meg 75 Meg 75 Meg 150 Meg 100 Meg 200 Meg 250 Meg 150 Meg 300 Meg 300 Meg 500 Meg 500 Meg 750 Meg1,000 Meg1,250 Meg2,000 MegN/AN/AN/AN/AN/AN/AN/AN/AN/A225 MN/A300 MN/A750 M750 M1,000 M1,500 M1,500 M2,500 M3,750 M5,000 M6,250 M10,000 M-15Min.6.5 MegN/AN/AN/AN/AN/AN/A26 Meg70 Meg17 MegN/A51 MegN/A77 Meg 40 Meg 178 Meg 64 Meg 288 Meg 128 Meg 192 Meg 320 Meg 400 Meg 384 MegOverloadRatingT*e 1T*e 1T*e 1T*e 1T*e 1T*e 2T*e 2T*e 2T*e 2T*e 2T*e 2T*e 2T*e 2T*e 2T*e 2T*e 2T*e 2T*e 2T*e 2T*e 2T*e 2T*e 2T*e 2
Now with Extended Resistance Range to 10,000 Megohms and Additional Models
Temperature Coefficient as tight as 80 ppm/°C, Combined with Excellent Long-Term Stability and Precision Tolerances.
Caddock's Micronox® resistance films are the source of the T*e MG Precision High Voltage Resistors' outstanding combination of performance features:
• Single-resistor values as high as 10,000 Megohms.
• Maximum continuous operating voltages as high as
48,000 volts ("-15" ratings).
• Overvoltage capabilities of 150% of standard working voltages for all models and values, (except "-15" ratings).
• Resistance Tolerances from ±1.0% to ±0.1%.
• Temperature Coefficient, for standard resistance range, of 80 ppm/°C in combination with resistance tolerances as tight as ±0.1%.
• T*e MG resistors have demonstrated stability of 0.01%
per 1,000 hours in extended load life testing of standard
resistance range values.
This exceptional performance has been proven through many years of use in equipment that demands the highest reliability and stability, including TWT amplifiers, X-ray systems, geophysical instruments, and medical electronics.
Preconditioning for Power and Voltage Ratings
All power ratings and maximum operating voltage ratings are for continuous duty. These ratings are based on pre-stress voltage levels applied during the manufacturing process to provide for stable resistor performance even under momentary overload conditions.
Maximum operating voltages 60% higher than the values listed in the table may be specified by adding "-15" to the model number (Example: MG750-15). Note that overload and overvoltage ratings do not apply to the "-15" resistors. Resistance ranges for "-15" resistors shown in the table are from "-15 Min." to "Standard Max."
Non-Inductive Performance
Most models are manufactured with Caddock's
Non-Inductive Design which uses a serpentine resistive pattern that provides for neighboring lines to carry current in opposite directions, thereby achieving maximum cancellation of flux fields over the entire length of the resistor. This efficient non-inductive construction is accomplished without derating of any performance advantages.
Insulation Resistance: 10,000 Megohms, min.
Overload/Overvoltage: 5 times rated power with applied voltage not to exceed 1.5 times max-imum continuous operating voltage for 5 seconds.
T*e 1: DC Voltage
T*e 2: DC Voltage or VrmsAC
Thermal Shock: Mil-Std-202, Method 107, Cond. C, ΔR 0.25% max.
Moisture Resistance: Mil-Std-202, Method 106, ΔR 0.4% max.
Load Life: 1,000 hours at +125°C at rated voltage, not to exceed rated power.
Solderable Leads
Encapsulation: High Temperature Silicone Conformal.
Temperature Coefficient:
CAD K DOC
1.500 ± .125 A B C
(38.10 ± 3.18)
RATED POWER OR
RATED VOLTAGE, %
A*ENT TEMPERATURE, °C
100
80
60
40
20
0
25 75 125 175 225 275
MG680
MG712
MG714
MG715
MG725
MG720
MG660
MG716
MG721
MG745
MG810
MG815
MG735
MG730
MG717
MG785
MG731
MG740
Most models are available with
Caddock's Non-inductive Serpentine Pattern
For immediate engineering *istance in developing Low Ratio TC matched
high voltage resistor sets, contact our Applications Engineering and we will
be pleased to offer the * solution from our high voltage resistor product
Derating Curve: capabilities.
MG650
MG710
MG750
MG780
DIMENSIONS IN INCH* AND (MILLIMETERS)
Design Assistance in Developing High Voltage Resistor Sets with Low TC Tracking.
Ordering Information: MG750 -100M - 1%
Model Number:
Resistor Value:
Tolerance
Certain products shown in this catalog are covered by one or more patents, there are also patents pending.
MG655
N Non-inductive
performance with
Caddock's exclusive design
T*e MG Precision High Voltage Resistors
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