LRF3W

Low Value 3W Chip Resistors www.DataSheet4U.com Welwyn Components LRF3W Series 3 Watts @ 70°C Resistance range from 0.003 to 0.1Ω Tolerances to ±1% Electrical Data Characteristic Power dissipation @70°C Resistance Range Dielectric withstand Ambient temp range Resistance tolerance TCR Pad & trace area for maximum power rating* Value 3 Watts 0.003 to 0.100Ω 200V -55 to +150°C ≤R005 5%, >R005 2, 5%, ≥R01 1, 2, 5% ±100ppm/°C 300mm2 Power Derating Curve 100 % Of Power Rating 80 60 40 20 0 25° 70° Temperature in °C 150° Physical Data Top Bottom (Board Side) 0.81 ± 0.13mm Recommended Solder Pad Layout 0.51 ± 0.13mm Plating wrap-around 6.35 ± 0.13mm 2.29 ± 0.13mm 7.6mm 2mm 1mm 0.94 mm max thickness 3.18 ± 0.13mm Weight 0.065g typ. General Note Welwyn Components reserves the right to make changes in product specification without notice or liability. All information is subject to Welwyn’s own data and is considered accurate at time of going to print. A subsidiary of TT electronics plc Issue D · 07.06 © 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 84 Low Value 3W Chip Resistors LRF3W Series Construction Patented non-noble copper based thick film material, overglaze and organic protection are screen printed on a 96% alumina substrate. The components are laser trimmed to achieve the required resistance tolerance. Welwyn Co...