Type USVD and Type HVD Ultra-Precision Voltage Dividers - 450 Volts to 5 KV Type USVD Ultra-Precision Voltage Dividers have the very highest precision available in voltage dividers in the range of 450 Volts DC up to 2000 Volts DC. These dividers are formed by bonding together two selected Type USF Ultra-Precision Resistors. The precise selection of these high performance resistors, which form the voltage dividers, makes possible the outstanding voltage division performance. Ratio Tolerance as tight as 0.01% and Ratio TC of 2ppm/°C. Part Number Vmax Continuous Operating Voltage (VDC) USVD2 - B1M - 010 - 02 450 100 : 1 USVD2 - B1M - 025 - 02 450 USVD2 - B2M - 010 - 02 650 USVD2 - B2M - 025 - 02 Voltage Division (RT : R2) Resistance Type HVD Ultra-Precision Voltage Dividers are monolithic voltage dividers built with ceramic sandwich construction. These voltage dividers have ultra-precision performance in the range of 1500 volts DC to 5000 volts DC, with a Ratio Tolerance of 0.05% and Ratio TC of 5ppm/°C. These dividers are ideal for high performance voltage division applications in medical equipment, laboratory equipment, analytical instruments, etc. Ratio Tolerance (RT : R2) Ratio T.C. (RT : R2) Ratio V.C. (RT : R2) Fig. 1 Meg 0.01% 2 ppm/°C 0.05 ppm/V 1 10 K 1 Meg 0.025% 2 ppm/°C 0.05 ppm/V 1 20 K 2 Meg 0.01% 2 ppm/°C 0.02 ppm/V 1 1.98 Meg 20 K 2 Meg 0.025% 2 ppm/°C 0.02 ppm/V 1 1,000 : 1 9.99 Meg 10 K 10 Meg 0.01% 2 ppm/°C 0.02 ppm/V 1 1,000 : 1 9.99 Meg 10 K 10 Meg 0.025% 2 ppm/°C 0.02 ppm/V 1 100 : 1 9.9 Meg 100 K 10 Meg 0.01% 2 ppm/°C 0.02 ppm/V 1 100 : 1 9.9 Meg 100 K 10 Meg 0.025% 2 ppm/°C 0.02 ppm/V 1 1,000 : 1 19.98 Meg 20 K 20 Meg 0.01% 2 ppm/°C 0.02 ppm/V 1 1,000 : 1 19.98 Meg 20 K 20 Meg 0.025% 2 ppm/°C 0.02 ppm/V 1 100 : 1 19.8 Meg 200 K 20 Meg 0.01% 2 ppm/°C 0.02 ppm/V 1 2000 100 : 1 19.8 Meg 200 K 20 Meg 0.025% 2 ppm/°C 0.02 ppm/V 1 HVD5 - A10M - 050 - 05 1500 1,000 : 1 9.99 Meg 10 K 10 Meg 0.05% 5 ppm/°C 0.02 ppm/V 2 HVD5 - B10M - 050 - 05 1500 100 : 1 9.9 Meg 100 K 10 Meg 0.05% 5 ppm/°C 0.02 ppm/V 2 HVD5 - A20M - 050 - 05 2500 1,000 : 1 19.98 Meg 20 K 20 Meg 0.05% 5 ppm/°C 0.02 ppm/V 2 HVD5 - B20M - 050 - 05 2500 19.8 Meg 200 K 20 Meg 0.05% 5 ppm/°C 0.02 ppm/V 2 HVD5 - A50M - 050 - 05 5000 1,000 : 1 49.95 Meg 50 K 50 Meg 0.05% 5 ppm/°C 0.04 ppm/V 2 HVD5 - B50M - 050 - 05 5000 500 K 50 Meg 0.05% 5 ppm/°C 0.04 ppm/V 2 R1 R2 990 K 10 K 100 : 1 990 K 100 : 1 1.98 Meg 650 100 : 1 USVD2 - A10M - 010 - 02 1400 USVD2 - A10M - 025 - 02 1400 USVD2 - B10M - 010 - 02 1400 USVD2 - B10M - 025 - 02 1400 USVD2 - A20M - 010 - 02 2000 USVD2 - A20M - 025 - 02 2000 USVD2 - B20M - 010 - 02 2000 USVD2 - B20M - 025 - 02 100 : 1 100 : 1 49.5 Meg RT = R1 + R2 FIG. 1 Marking Side R1 .500 ±.020 (12.7 ±.51) R2 2 1 Pin 1 Input 1.500 ±.020 (38.1 ±.51) .155 ±.025 (3.94 ±..64) 3 Pin 2 To be held near ground .500 ±.125 (12.7 ±3.18) 4 Circuit Board Trace Pin 1 .115 ±.020 (2.92 ±.51) FIG. 2 CADDOCK USVD2-A20M-010-02 0422 .800 ±.020 (20.32 ±.51) 1.350 ±.020 (34.29 ±.51) Marking Side 1.500 ±.020 (38.10 ±.51) R1 Pin1 1 2 3 Pin 1, 2, and 3 Input 0.110 Max. (2.79 Max.) R2 CADDOCK CADDOCK HVD5-A50M-050-05 HVD5-A50M-050-05 0247 0409 4 5 0.050 ±0.015 Pin 6 (1.27 ±0.38) To be held 0.100 (2.54) near ground 0.100 (2.54) Applications Engineering 17271 North Umpqua Hwy. Roseburg, Oregon 97470-9422 Phone: (541) 496-0700 Fax: (541) 496-0408 © 2004 Caddock Electronics, Inc. 0.610 Max. (15.5 Max.) 0.150 ±.040 (3.81 ±1.0) 6 0.900 (22.86) 0.100 (2.54) 0.200 (5.08) 0.020 ±.002 (0.51 ±.05) Absolute Tolerance: ±0.10% for all resistors, measured at +23°C ±2°C. Ratio Tolerance (RT : R2): See table. Ratio Tolerance measured at +23°C ±2°C, with 100 volts DC applied to the divider. Absolute TC: USVD2: 10 ppm/°C, HVD5: 30 ppm/°C, referenced to +25°C, ΔR taken at -40°C and +85°C. Ratio Temperature Coefficient (RT : R2): See table. Ratio Temperature Coefficient from -40°C to +85°C. Ratio Voltage Coefficient (RT : R2): See table. Maximum Ratio V.C. measured at 10% of Vmax. to 100% of Vmax. Voltage Rating: Maximum voltage (volts DC) applied to RT = (R1 + R2). See table. Load Life Stability: Ratio stability with maximum continuous operating voltage applied to the divider for 1000 hours at +85°C, ratio change 0.02% max. Overvoltage: 1.5 times rated voltage for 5 seconds, ratio change 0.02% max. Thermal Shock: Mil-Std-202, Method 107, Cond. A, except minimum temperature is -40°C, ratio change 0.02% max. Operating Temperature: -40°C to +85°C .032 DIA. (.81 DIA.) .200 ±.020 (5.08 ±.51) Specifications: Custom Type USVD and Type HVD Voltage Dividers: For high quantity applications (greater than 1000 per year) these voltage dividers can be produced with custom voltage division ratios and ratio specifications that optimize the performance and the cost for your application. See note 0.010 ±.002 (0.25 ±.05) Note: Lead form detail provides interference in the circuit board hole to achieve a vertical mount of the device. Recommended circuit board hole is nominally 0.039 inch (.99 mm). CADDOCK e-mail: [email protected] • 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_IL132.1004