HVR Series High Voltage Resistors Sizes: HVR 25, HVR 30, HVR 40, HVR 50 Features: • • • • • • • High Voltage Resistors in thick film technology Radial leads, variable lead spacing by bending Climatic protection by silicone coating Chip version available (without coating) Special versions possible Resistance values up to 10 Tera-Ohm Low values of TCR and VCR Dimensions: Baugröße Standard Version (radial) L HVR 30 25.0 (1”) 30.0 HVR 40 HVR 50 HVR 25 B D R 6.0 1.4 22.9 (0.9”) 27.5 40.0 6.0 1.4 37.8 0.40 ±0.05 50.0 12.5 1.4 47.8 0.40 ±0.05 9.0 1.4 D L d 0.40 ±0.05 0.40 ±0.05 B 20mm Ød R L = length, B = width, D = thickness (Tolerance of dimensions: ? 0.5 mm) -2mm +0mm R = standard lead spacing (other spacing possible by bending) d = wire diameter (in mm), other diameters possible (changes D) Special Version (axial) Axial versions, versions with formed leads and versions with lead frames are available on request. Packaging: B L 35 ... 70 mm 35 … 70 mm Bulk in plastic bags or boxes Minimum quantity: 10 pieces per value The labeling is made at the packing unit only. The components are not marked (only on request at individual cases). Ordering data: Type – value – tolerance – TCR Example: HVR 30 10G ±10% TCR 100 If no requirement for TCR is given, the standard value (highest value in table) will be supplied. Standard measuring voltage is 10V (50V for values >1G). Different voltages on request and agreement (specify explicitly). Specifications subject to change without notice Issue 07-2012 Willow Technologies Ltd. Unit 3 Borers Yard, Borers Arms Road, Copthorne, West Sussex, RH10 3LH, United Kingdom. + 44 (0) 1342 717102 + 44 (0) 1342 717104 [email protected] http://www.willow.co.uk HVR Series High Voltage Resistors Sizes: HVR 25, HVR 30, HVR 40, HVR 50 Technical data – depending on size: Size Power rating P70(W) (P125 = 0W) Working voltage U_, Ueff (V) 1) HVR 25 HVR 30 HVR 40 HVR 50 1.0 1.0 1.2 3.0 15 KV 10 KV 20 KV 30 KV 2) Ranges / Tolerances / TCR / VCR 1M – 100M 0.25/.../10% TC 25/50/100 1 ppm/V 0.25/.../10% TC 25/50/100 2 ppm/V 0.25/.../10% TC 25/50/100 1 ppm/V 0.25/.../10% TC 25/50/100 1 ppm/V >100M – 1G 1/2/5/10/20% TC 50/100/250 2 ppm/V 1/2/5/10/20% TC 50/100/250 5 ppm/V 1/2/5/10/20% TC 50/100/250 2 ppm/V 1/2/5/10/20% TC 25/50/100 1 ppm/V >1G – 100G 5/10/20/30% TC 250/500 10 ppm/V 5/10/20/30% TC 250/500 20 ppm/V 5/10/20/30% TC 250/500 10 ppm/V 5/10/20/30% TC 100/250 5 ppm/V >100G – 1T 5/10/20/30% TC 500/1000 50 ppm/V 5/10/20/30% TC 500/1000 100 ppm/V 5/10/20/30% TC 500/1000 50 ppm/V 5/10/20/30% TC 250/500 25 ppm/V >1T – 10T – – 10/20/30% – TC/VCR on request 1) TCR: in ppm/K; Temp.range + 25°C...+ 125°C; TCR25/50 and values above 1G: Temp.range +25°C...+85°C VCR: typical values 3) Continuous operating voltage: U = √(P*R) Closer values of tolerance, TCR and VCR, other dimensions as well as voltage dividers on request and agreement 2) General technical data: Operating temperature range -55°C ... +125°C Climatic category to EN 60068-1 Humidity- / contact protection 55/125/56 Lacquer coating 4) Long term stability ≤10G >10G Storage 125°C/1000h <1% <2% Max. voltage/1000h <1% <2% 4) Resistant to most solvents. For cleaning the use of isopropyl alcohol (IPA) is recommended. The use of acetone and methylene chloride is not allowed. Mechanical stress to coating should be avoided. Specifications subject to change without notice Issue 07-2012 Willow Technologies Ltd. Unit 3 Borers Yard, Borers Arms Road, Copthorne, West Sussex, RH10 3LH, United Kingdom. + 44 (0) 1342 717102 + 44 (0) 1342 717104 [email protected] http://www.willow.co.uk