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HVL44 Datasheet(PDF) 2 Page - Welwyn Components Limited |
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HVL44 Datasheet(HTML) 2 Page - Welwyn Components Limited |
2 / 2 page High Voltage Low Inductance Thick film Resistors HVL Series © Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com Issue B · 03.02 Welwyn Components 198 Matched Sets Resistors in a set can be supplied for use as precision voltage dividers matched for tolerance and TCR down to 0.5% and 10ppm/°C. ENQUIRIES ARE WELCOMED FOR SPECIAL RESISTORS AND SETS Application Notes Mounting Due to the high voltage which can appear between the end cap and any adjacent metal part, resistors should be mounted at an adequate distance from other conductors. For some high voltage applications it is required to immerse the components in oil or gas to reduce the effects of corona and surface tracking. The protective coating is suitable for these applications. The axial termination should not be bent closer than twice the diameter of the terminal wire from the body of the resistor. When the resistors are required to be plotted, the preferred encapsulant is a silicone compound. For voltage dividers with a low resistance section below the minimum available value of 1k ohms, it is normal practice to use a Welwyn resistor, RC Series, obtainable down to 1ohm. Packaging Resistors are supplied packed in boxes. Standard Quantities Per Box All Types 10 or 20 per box Maximum Typical Load at rated power: 1000 hours at 70°C ∆R% 1 0.3 Shelf life: 12 months at room temperature ∆R% 0.3 0.1 Derating from rated power at 70°C Zero at 155°C Noise (in a decade of frequency) µV/V 5 <2.5 Voltage coefficient of resistance ppm/volt 5 <1 Performance Data |
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