Precision High Voltage Dividers Type: HVT Standard Sizes: HVT 20 / 25 / 30 / 40 / 50 / 75 / 100 Features: • • • • • • • • Customer specific design, special versions possible Radial leads, variable lead spacing by bending High precision of ratio (0.25 %) Low relative TCR (25 ppm/K) High working voltages Resistance values up to 1 Tera-Ohm Low values of VCR Climatic protection by lacquer coating Dimensions (preference sizes): L L B D R HVT 20 20 25.0 (1”) 30.0 40.0 50.0 75.0 100.0 6.0 1.4 9.0 1.4 17.5 22.9 (0.9”) 27.5 37.8 47.8 72.8 97.8 HVT 25 HVT 30 HVT 40 HVT 50 HVT 75 HVT 100 6.0 6.0 12.5 9.0 9.0/12.5 1.4 1.4 1.4 1.4 1.4 r d B 0.40 ±0.05 custom-specific Size 0.40 ±0.05 ±0.05 0.40 0.40 ±0.05 0.40 ±0.05 0.40 ±0.05 0.40 ±0.05 20mm r R Ød L = length, B = width, D = thickness (Tolerance of dimensions: ± 0.5 mm) R = standard outer lead spacing (other spacing possible by bending) d = wire diameter (in mm), other diameters possible (changes D) other custom-specific sizes on request Packaging: Bulk in plastic bags or boxes Minimum quantity: - 30 pieces for existing types/values - 100 pieces for new developments Inquiry / Ordering Data: Type / Dimensions – Working voltage – Resistance values – Ratio – Outer Lead spacing – Inner Lead spacing - Tolerance absolute – Tolerance ratio – TCR absolute – TCR relative – Stability requirements – Environmental conditions The standard measuring voltage is 10 V, required different voltages are to indicate explicitly. Issue 04-2009 Willow Technologies Ltd. Shawlands Court, Newchapel Road, Lingfield, Surrey, RH7 6BL, United Kingdom. + 44 (0) 1342 835234 + 44 (0) 1342 834306 [email protected] http://www.willow.co.uk -2mm +0mm Precision High Voltage Dividers Type: HVT Standard Sizes: HVT 20 / 25 / 30 / 40 / 50 / 75 / 100 Technical data – depending on size (examples) 2): Size HVT 20 HVT 25 HVT 30 HVT 40 HVT 50 HVT 75 HVT 100 Max. working voltage U (kV) 1) 6 10 8 15 25 36 50 Power rating P70 (W) 1 1 1 1.2 3.0 4,5 6,0 Lowest value 1M 1M 1M 5M 5M 10 M 20 M Highest value 100 G 100 G 100 G 100 G 1T 1T 1T Ratio max. 1:2.000 1:3.000 1:3.000 1:10.000 1:15.000 1:20.000 1:20.000 1) 2) Custom specific parts: the maximum working voltage depends on resistance value and ratio Extreme values are not realizable together in all cases General technical data 2): Temperature range -55°C ... +125°C Temperature coefficient abs. ± 50 ... ± 500 ppm/K Temperature coefficient rel. ± 25 ... ± 100 ppm/K Tolerances, absolute: ±1 Tolerances relative (ratio): ± 0.25... ± 5 % Climatic category acc. to EN 60068-1 Humidity- / contact protection 3) ... ± 20 % 55/125/56 Lacquer coating 3) Resistant to most solvents. For cleaning the use of isopropyl alcohol (IPA) is recommended. The use of acetone and methylene chloride is not allowed. More technical data for specific size: on request. Versions with single in-line leadframes are available on request as well as versions with overglaze. Issue 04-2009 Willow Technologies Ltd. Shawlands Court, Newchapel Road, Lingfield, Surrey, RH7 6BL, United Kingdom. + 44 (0) 1342 835234 + 44 (0) 1342 834306 [email protected] http://www.willow.co.uk