Page 1 of 2 Type MG Precision High Voltage Resistors Part Performance and Size Options provide the Designer with High Voltage Module Optimization Tolerance of 1% to 0.1%, Temperature Coefficient as tight as 80 ppm/C, combined with Excellent Long-Term Stability. Caddock s Micronox complex metal oxide resistance Preconditioning for Power and Voltage Ratings films are the source of the Type MG Precision High Voltage All power ratings and maximum operating voltage ratings Resistors outstanding combination of performance features: are for continuous duty. These ratings are based on pre- Resistance Tolerances from 1% to 0.1%. stress voltage levels applied during the manufacturing Temperature Coefficient, for standard resistance range, of process to provide for stable resistor performance even under 80 ppm/C, with resistance tolerances as tight as 0.1%. momentary overload conditions. Type MG resistors have demonstrated stability of 0.01% For certain models, the maximum operating per 1,000 hours in extended load life testing of standard voltage may be extended 60% higher than the resistance range values. operating voltage listed in the table by adding-15 Overvoltage capabilities of 150% of standard working to the model number (Example: MG750-15-200M-1% voltages for all models and values (except-15 ratings). 16,000 Volts). Note: The resistance range is from-15 Extended higher maximum operating voltage,-15 rating Min toStd Ma. The overload and overvoltage Outstanding short term high voltage transient stability. ratings do not apply to resistors with the-15 ratin. Single resistor values as high as 10,000 Megohms. Non-Inductive Performance This exceptional performance has been proven through All models are manufactured with Caddock s many years of use in equipment that demands the highest Non-Inductive Designs, which includes the serpentine reliability and stability, including TWT HV power supplies, resistive pattern that provides for neighboring lines to carry electron microscopes, e-beam equipment, electrical current in opposite directions, thereby achieving maximum distribution HV monitor dividers, X-ray systems, geophysical cancellation of flux fields over the entire length of the resistor. instruments, medical electronics, as well as HV probes and This efficient non-inductive construction is accomplished compact instrument probes. without derating of any performance advantages. Std. Max. Coating Resistance Dimensions in inches and (millimeters) Specifications: Continuous Dielectric Overload Model Watt- Oper. Volt. Strength Std Min -15 Min Std Max Extended No. age Rating A B C Resistance Tolerance: (DC or ACrms) (ACrms) Max .094 .015 Resistance Range Tolerance .313 .020 .025 .002 0.5 600 750 N/A 5 Meg N/A MG650 Type 1 200 (2.39 .38) (7.95 .51) (.64 .05) Standard 1% also 0.1%, 0.25%, 0.5% .109 .025 .313 .030 .025 .002 MG655 0.5 600 Type 1 750 200 N/A 8 Meg N/A (2.77 .64) (7.95 .76) (.64 .05) St d with-15 rating 1% also 5% .094 .015 .500 .030 .025 .002 MG660 0.6 1,000 Type 1 750 400 N/A 10 Meg N/A (2.39 .38) Extended Range 1% also 5% (12.70 .76) (.64 .05) .094 .015 .750 .030 .025 .002 MG680 0.8 2,000 Type 1 750 600 N/A 20 Meg N/A Temperature Coefficient: (19.05 .76) (2.39 .38) (.64 .05) 1.000 .040 .094 .015 .025 .002 Resistance MG710 1.0 4,000 Type 1 750 800 N/A 50 Meg N/A TC Specifications (25.40 1.02) (2.39 .38) (.64 .05) Range .140 .030 .400 .060 .025 .002 MG712 0.6 1,000 Type 2 750 N/A 20 Meg N/A 800 Standard and (3.56 .76) (10.16 1.52) (.64 .05) 80 ppm/C from -15C to +105C, St d with-15 .150 .030 referenced to +25 C562 .060 .032 .002 rating MG714 1.0 1,000 Type 2 750 200 6.5 Meg 20 Meg N/A (3.81 .76) (14.27 1.52) (.81 .05) .140 .030 80 ppm/C from +25C to +105C, .750 .060 .025 .002 Extended MG715 1.0 2,000 Type 2 750 400 26 Meg 50 Meg N/A (3.56 .76) (19.05 1.52) (.64 .05) -200 ppm/C to +50 ppm/C from Range -15C to +25C140 .030 1.000 .060 .025 .002 MG716 1.5 4,000 Type 2 750 600 70 Meg 75 Meg N/A (3.56 .76) (25.40 1.52) (.64 .05) Voltage Coefficient: Contact Caddock .240 .030 .710 .050 .040 .002 MG717 1.5 2,000 Type 2 750 600 17 Meg 75 Meg 225 M (6.10 .76) (18.03 1.27) (1.02 .05) Applications Engineering .140 .030 1.500 .080 .025 .002 MG720 2.0 6,000 Type 2 750 1 K N/A 150 Meg N/A (3.56 .76) Overload/Overvoltage: 5 times rated power (38.10 2.03) (.64 .05) .240 .030 with applied voltage not to exceed 1.5 times max- 1.000 .050 .040 .002 MG721 2.0 4,000 Type 2 750 200 51 Meg 100 Meg 300 M (6.10 .76) (25.40 1.27) (1.02 .05) imum continuous operating voltage for 5 seconds140 .030 2.000 .080 .025 .002 MG725 2.5 10,000 Type 2 750 1.5 K N/A 200 Meg N/A Type 1: DC Voltage (3.56 .76) (50.80 2.03) (.64 .05) Type 2: DC Voltage or VAC rms .240 .030 1.500 .080 .040 .002 3.0 6,000 1,000 77 Meg 250 Meg 750 M MG730 Type 2 500 (6.10 .76) (38.10 2.03) (1.02 .05) Resistance Range Overload/Overvoltage, R .315 .030 1.000 .060 .040 .002 MG731 2.6 4,000 Type 2 1,000 200 40 Meg 150 Meg 750 M (8.00 .76) (25.40 1.52) (1.02 .05) Standard 0.5% max240 .030 2.000 .080 .040 .002 St d with-15 rating N/A MG735 3.6 10,000 Type 2 1,000 750 178 Meg 300 Meg 1,000 M (6.10 .76) (50.80 2.03) (1.02 .05) Extended Range 0.8% max315 .030 1.500 .060 .040 .002 MG740 3.6 6,000 Type 2 1,000 300 64 Meg 300 Meg 1,500 M (8.00 .76) (38.10 1.52) (1.02 .05) .240 .030 3.000 .100 .040 .002 Load Life: 1,000 hours at +125C at rated MG745 5.0 15,000 Type 2 1,000 1 K 288 Meg 500 Meg 1,500 M (6.10 .76) (76.20 2.54) (1.02 .05) voltage, not to exceed rated power. 2.125 .060 .315 .030 .040 .002 MG750 5.0 10,000 Type 2 1,000 128 Meg 500 Meg 2,500 M 400 (8.00 .76) (53.98 1.52) (1.02 .05) Resistance Range Load Life, R .315 .030 3.125 .060 .040 .002 MG780 7.5 15,000 Type 2 1,000 600 192 Meg 750 Meg 3,750 M Standard 0.5% max. at +125C (8.00 .76) (79.38 1.52) (1.02 .05) .315 .030 St d with-15 rating 4.000 .120 .040 .002 0.8% max. at +85C MG785 8.0 20,000 Type 2 1,000 800 320 Meg 1,000 Meg 5,000 M (8.00 .76) (101.60 3.05) (1.02 .05) Extended Range 0.8% max. at +125C .315 .030 5.000 .120 .040 .002 Type 2 400 Meg MG810 10.0 25,000 1,000 1 K 1,250 Meg 6,250 M (8.00 .76) (127.00 3.05) (1.02 .05) Thermal Shock: Mil-Std-202, Method 107, 6.000 .120 .350 .040 .040 .002 MG815 15.0 30,000 Type 2 1,000 1 K 384 Meg 2,000 Meg 10,000 M (152.40 3.05) (8.89 1.02) (1.02 .05) Cond. C, R 0.25% max. Lead Finish: Solderable. Thin gold plate over thick nickel layer on copper core. Moisture Resistance: Mil-Std-202, Method 106, R 0.4% max. Encapsulation: High Temperature Silicone Conformal. Operating Temperature Range: -55C to +225C, see Derating Curve. Insulation Resistance: 10,000 Megohms, min. Sales and Applications Engineering 17271 North Umpqua Hwy. ELECTRONICS, INC. Roseburg, Oregon 97470-9422 website: caddock.com Phone: (541) 496-0700 For Caddock Distributors listed by country see caddock.com/contact/dist.html email: caddock caddock.com 2003-2021 Caddock Electronics, Inc. 28 IL110.0721Page 2 of 2 Type MG Precision High Voltage Resistors MG650 MG655 MG660 MG680 MG710 MG712 MG714 MG715 MG716 MG720 Non-inductive MG725 performance with N Caddock s exclusive design MG717 All Type MG Models are available with MG721 Caddock s Non-inductive Serpentine Pattern MG730 MG735 MG745 MG731 MG740 MG750 MG780 MG785 MG810 MG815 Certain products shown in this catalog are covered by one or more patents, there are also patents pending. Design Assistance in Developing High Voltage Resistor Sets with B 1.500 .125 A C (38.10 3.18) Low TC Tracking. For immediate engineering assistance in developing Low Ratio TC matched high voltage resistor sets, contact our Applications Engineering and we will DIMENSIONS IN INCHES AND (MILLIMETERS) be pleased to offer the best solution from our high voltage resistor product Derating Curve: capabilities. 100 80 STANDARD RATED POWER OR 60 STANDARD RATED VOLTAGE, % Ordering Information: 40 MG750 -100M - 1% 20 Model Number: Tolerance 0 -55 25 75 125 175 225 Resistor Value: AMBIENT TEMPERATURE, C Sales and Applications Engineering 17271 North Umpqua Hwy. ELECTRONICS, INC. Roseburg, Oregon 97470-9422 website: caddock.com Phone: (541) 496-0700 For Caddock Distributors listed by country see caddock.com/contact/dist.html email: caddock caddock.com 2003-2021 Caddock Electronics, Inc. 28 IL110.0721