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| Type TG Low TC Precision High Voltage Resistors TC of 25 ppm/C from -55C to +125C, Resistance Range from 1 Megohm to 1,000 Megohms To meet the precision temperature stability requirements of high accuracy, high voltage systems, Caddock introduces the Type TG Low TC Precision High Voltage Resistors. These resistors utilize our proven Tetrinox (R) resistance system to achieve the unique combination of low temperature coefficient with high stability performance at high operating voltages. The Type TG Low TC Precision High Voltage Resistors are designed to meet the demanding stability requirements of TWT power supplies, electron microscopes, X-ray systems, high resolution CRT displays, and geophysical instruments. TG931 The performance features of the Type TG Low TC Precision High Voltage Resistors are: * Temperature Coefficient: 25 ppm/C from -55C to +125C. * Load Life Stability of 0.25% per 1,000 hours at +125C. * Resistance Tolerance from 1.0% to 0.1%. * Resistance Range from 1 Megohm to 1,000 Megohms. * Maximum Continuous Operating Temperature of +225C. * The low temperature coefficient minimizes the self-drift due to power dissipation warm-up. TG940 TG950 TG980 N Non-inductive performance with Caddock's exclusive design TG985 All Type TG resistors are produced with Caddock's Non-inductive Serpentine Pattern. TG1010 TG1015 Model No. Max. TC Watt- Continuous Dielect. age Oper. Volt. Strength ppm/ C Min. Resistance -15 Max. Min. Dimensions in inches and (millimeters) A B C Specifications: TG 931 TG 940 1.0 1.5 4,000 6,000 750 750 25 25 1 Meg 1.5 Meg 40 Meg 50 Meg 64 Meg 100 Meg TG 950 TG 980 TG 985 2.0 3.0 4.0 10,000 15,000 20,000 1,000 1,000 1,000 25 25 25 2 Meg 128 Meg 200 Meg 3 Meg 192 Meg 300 Meg 4 Meg 320 Meg 400 Meg TG 1010 TG 1015 5.0 6.0 25,000 30,000 1,000 1,000 25 25 5 Meg 400 Meg 500 Meg 6 Meg 384 Meg 1000 Meg 1.000 .060 (25.40 1.52) 1.500 .060 (38.10 1.52) 2.125 .060 (53.98 1.52) 3.125 .060 (79.38 1.52) 4.000 .120 (101.60 3.05) 5.000 .120 (127.00 3.05) 6.000 .120 (152.40 3.05) .315 .030 (8.00 .76) .315 .030 (8.00 .76) .315 .030 (8.00 .76) .315 .030 (8.00 .76) .315 .030 (8.00 .76) .315 .030 (8.00 .76) .350 .040 (8.89 1.02) .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) Extended Maximum Continuous Operating Voltage Rating Maximum continuous operating voltages up to 60% higher than the values listed in the table can be achieved through special factory conditioning. To specify maximum continuous operating voltages above the values listed in the table, add a "-15" to the model number (Example: TG950-15). Note that the standard overload and overvoltage ratings do not apply to the "-15" resistors. Resistance range for "-15" resistors shown in the table are from "-15 Min." to "Max." Resistance Tolerance: 1% (tolerances to 0.1% on special order). Temperature Coefficient: 25 ppm/C referenced to +25C, R taken at -55C and +125C. Insulation Resistance: 10,000 Megohms, min. Overload/Overvoltage: 5 times rated power with applied voltage not to exceed 1.5 times maximum continuous operating voltage for 5 seconds. R 0.20% max. Thermal Shock: Mil-Std-202, Method 107, Cond. B, R 0.20% max. Moisture Resistance: Mil-Std-202, Method 106, R 0.20% max. Load Life: 1,000 hours at +125C at rated voltage, not to exceed rated power, R 0.25%. Solderable Leads Encapsulation: High Temperature Silicone Conformal. 1.500 .125 (38.10 3.18) A B C Combine Type TG and Type TK Resistors for Low Ratio TC Tracking The Type TG Low TC Precision High Voltage Resistors can be used in combination with the low Absolute Temperature Coefficient of the Type TK Low TC Precision Radial-Lead Film Resistors (Model TK133 with TC of 5 ppm/C) to achieve 30 ppm/C Ratio TC without special matching. With special matching, a Ratio TC of 10 ppm/C can be achieved. The low temperature coefficient for both the Type TG and Type TK resistors will also minimize ratio drift due to power dissipation warm-up. Applications Engineering 17271 North Umpqua Hwy. Roseburg, Oregon 97470-9422 Phone: (541) 496-0700 Fax: (541) 496-0408 (c) 2004 Caddock Electronics, Inc. DIMENSIONS IN INCHES AND (MILLIMETERS) Derating Curve: RATED POWER OR RATED VOLTAGE, % 100 80 60 40 20 0 25 75 125 175 225 275 AMBIENT TEMPERATURE, C Certain products shown in this catalog are covered by one or more patents, there are also patents pending. CADDOCK e-mail: caddock@caddock.com * web: www.caddock.com For Caddock Distributors listed by country see caddock.com/contact/dist.html Sales and Corporate Office 1717 Chicago Avenue Riverside, California 92507-2364 Phone: (951) 788-1700 Fax: (951) 369-1151 28_IL111.1004 |
Price & Availability of TG940
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