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: • Seven Models with Voltage Ratings from 7.5 KV to 48 KV. • Temperature Coefficient: 80 ppm/°C from 0°C to +70°C. • Load Life Stability of 0.50% per 1,000 hours. • Resistance Tolerance from ±0.1% to ±10%. • Non-Inductive Design. • Resistance Range from 1 Megohm to 2,000 Megohms. MX431 Ordering Information: MX440 Model Number: MX485 -100M - 1% Tolerance Resistor Value: MX450 MX480 MX485 MX510 MX515 Resistance Model No. Wattage Max. Continuous Oper. Volt. TC ppm/ °C MX 431 2.0 7,500 80 1 Meg 150 Meg MX 440 3.5 11,000 80 1.5 Meg 300 Meg MX 450 5.0 16,000 80 2 Meg 500 Meg MX 480 7.5 24,000 80 3 Meg 750 Meg MX 485 10.0 32,000 80 4 Meg 1,000 Meg MX 510 12.5 40,000 80 5 Meg 1,250 Meg MX 515 15.0 48,000 80 6 Meg 2,000 Meg Min. Max. Dimensions in inches and (millimeters) A B C .940 ±.040 (23.88 ±1.02) 1.450 ±.040 (36.83 ±1.02) 2.080 ±.040 (52.83 ±1.02) 3.080 ±.050 (78.23 ±1.27) 3.940 ±.050 (100.08 ±1.27) 4.940 ±.080 (125.48 ±2.03) 5.940 ±.080 (150.88 ±2.03) .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) .270 ±.020 (6.86 ±.51) .330 ±.020 (8.38 ±.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) .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 NonInductive 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. Specifications: Resistance Tolerance: ±1%, ±2%, ±5%, or ±10% (tolerance to ±0.5%, ±0.25%, or ±0.1% on special order). Temperature Coefficient: 80 ppm/°C referenced to +25°C, ΔR taken at 0°C and +70°C. Thermal Shock: Mil-Std-202, Method 107, Cond. A, ΔR, 0.20% max. Moisture Resistance: Mil-Std-202, Method 106, ΔR, 1.0% max. Load Life: 1,000 hours at rated voltage at +70°C, not to exceed rated power, ΔR, 0.50% max. Lead Material: Tinned copper clad steel, solderable. Encapsulation: Screen printed high temperature silicone coating over resistor element. 1.500 ± .125 (38.10 ± 3.18) © 2004 Caddock Electronics, Inc. CADDOCK C DIMENSIONS IN INCHES AND (MILLIMETERS) Derating Curve: 100 80 RATED POWER OR 60 RATED VOLTAGE, % 40 20 0 Certain products shown in this catalog are covered by one or more patents, there are also patents pending. Applications Engineering 17271 North Umpqua Hwy. Roseburg, Oregon 97470-9422 Phone: (541) 496-0700 Fax: (541) 496-0408 B A e-mail: [email protected] • 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_IL113.1004