Type THV Precision High Voltage Divider Networks Ratio TC to 10 ppm/°C, Ratio Tolerance to ±0.25%, Voltage Ratings of 10 KV, 15 KV or 20 KVDC The Type THV Precision High Voltage Divider Networks introduce Caddock's advanced high voltage resistor technology which doubles the allowable working voltage over the length of the high voltage section. This technology combines Caddock's Tetrinox® resistance films with a patented lasergenerated V-Notch Geometry which optimizes the voltage gradient over the length of the resistance pattern. Type THV networks provide tighter ratio temperature coefficients and tighter ratio tolerances than have previously been available in standard high voltage divider products. • Ratio Temperature Coefficients of 10 ppm/°C or 25 ppm/°C from -55°C to +125°C. • Ratio Tolerances of ±0.25%, ±0.5%, ±1.0% or ±2.0% at Rated Voltage. • Voltage Ratings of 10 KVDC, 15 KVDC or 20 KVDC at +125°C. • Standard Voltage Division Ratios of 1,000:1 or 100:1, with custom ratios available. These specifications can provide important improvements in performance in many types of advanced electronic systems, including TWT power supplies, radar systems, X-ray systems, analytical equipment and high resolution CRT displays. For complete information on price and delivery of both evaluation and production quantities, contact our Sales Office. Standard Type THV Precision High Voltage Divider Networks Model No. Voltage Rating THV 10 THV 15 THV 20 Resistance Voltage Division A 1,000 : 1 99.9 Meg 100 K 100 Meg B 100:1 99 Meg 1 Meg 100 Meg A 1,000:1 149.85 Meg 150 K 150 Meg B 100:1 A 1,000:1 199.8 Meg 200 K 200 Meg B 100:1 198 Meg 2 Meg 200 Meg R1 R2 Specifications: Dimensions inches (mm) Ratio Code Letter A B 1.500 ±.030 (38.10 ±.76) 1.100 ±.015 (27.94 ±.38) 2.050 ±.030 (52.07 ±.76) 1.650 ±.015 (41.91 ±.38) 2.600 ±.030 (66.04 ±.76) 2.200 ±.015 (55.88 ±.38) Total 10 KVDC 15 KVDC 148.5 Meg 1.5 Meg 150 Meg 20 KVDC Ratio Temperature Coefficient from -55°C to +125°C: -25 = 25 ppm/°C -10 = 10 ppm/°C Ratio Code Letter: Standard Ratio Tolerance at Rated Voltage: -2.0 = 2.0% -0.5 = 0.5% -1.0 = 1.0% -0.25 = 0.25% Total Resistance Value of the Divider: A CADDOCK ELECTRONICS THV 10 - A 100M - 1.0 - 10 0102 .120 ±.030 (3.05 ±.76) R1 R2 PIN 1 .025 ±.002 (.64 ±.05) DIA. .100 (2.54) B .200 ±.015 (5.08 ±.38) Ratio Temperature Coefficient: information. See ordering Absolute Temperature Coefficient: 30 ppm/°C. Referenced to +25°C, ∆R taken at -55°C and +125°C. Rated voltage applied to R1 Load Life: Ratio change with rated voltage applied for 1,000 hours at +125°C, 0.4% max. Overvoltage: 1.5 times rated voltage for 5 seconds, ratio change 0.5% max. Thermal Shock: Mil-Std-202, Method 107, Cond. C, ratio change 0.25% max. Moisture Resistance: Mil-Std-202, Method 106, ratio change 0.5% max. .710 ±.040 (18.03 ±1.02) 1.000 ±.125 (25.40 ±3.18) PIN 1 Absolute Tolerance: ±1.0% for all resistors. Voltage Rating: and R2 in series. Ordering Information: THV10 - A 100M - 1.0 - 10 Model Number: Ratio Tolerance: See ordering information. DIMENSIONS IN INCHES AND (MILLIMETERS) Solderable Leads Encapsulation: High Temperature Silicone Conformal with Dielectric Withstanding Voltage of 750 volts. Insulation Resistance: 10,000 Megohms, min. Derating Curve: Custom Type THV Precision High Voltage Divider Networks Custom Type THV Precision High Voltage Divider Networks can be produced with a broad range of resistance values, voltage ratios, voltage ratings, ratio tolerances and ratio temperature coefficients. 100 80 60 RATED VOLTAGE, % 40 20 0 25 75 125 175 225 AMBIENT TEMPERATURE, °C Contact our Applications Engineering about your custom high voltage divider requirement. Applications Engineering 17271 North Umpqua Hwy. Roseburg, Oregon 97470-9422 Phone: (541) 496-0700 Fax: (541) 496-0408 © 2002 Caddock Electronics, Inc. e-mail: [email protected] • web: www.caddock.com Sales and Corporate Office 1717 Chicago Avenue Riverside, California 92507-2364 Phone: (909) 788-1700 Fax: (909) 369-1151 27.1 IL112.0802

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