UR732ATTD50L0F

thick film (low resistance) UR73 low resistance flat chip resistors (low T.C.R.) EU • Current detecting resistors for power supplies, motor circuits, etc. • Low resistance (100mΩ or under) and high accuracy resistors (±1％) for current detection • High reliability and performance with T.C.R. ±100×10-6/K • Products meet EU RoHS requirements dimensions and construction UR73 L a a Resistance Range (Ω) D1E (0402) 24m ~ 100m D1J (0603) .031 +.005 -.004 .02±.004 .014±.004 (0.55±0.1) .063±.008 +0.15) (0.5±0.1) (0.35±0.1) .014±.004 (1.6±0.2) (0.8 30m ~ 100m -0.1 (0.35±0.1) W Ni Plating h Protective Coating b Resistive Inner Film Electrode Ceramic Substrate UR73D L a a W Sn Plating Ni Plating h Resistive Film Ceramic Protective Substrate Coating b 80 % Rated Power 100 80 % Rated Power 100 60 40 20 60 D1J/0.25W (80°C) 2B/0.5W, D2B/0.5W (85°C) D2A/0.33W, D2H/0.75W (90°C) D3A/1W (95°C) 2A/0.33W (100°C) 40 20 0 -60 -40 -55 -20 0 20 40 60 80 70 Ambient Temperature (°C) 100 120 140 125 For resistors operated at an ambient temperature of 70°C or above, a power rating shall be derated in accordance with the above derating curve. 0 -60 -40 -20 -55 20 40 60 80 100 120 140 85 90 95 125 Terminal Part Temperature (°C) L b +.004 .039 +.004 -.002 .020 -.002 +0.1 ) (1.0 -0.05 .016±.002 .010±.004 .012±.004 +0.1 ) (0.4±0.05) (0.25±0.1) (0.3±0.1) (0.5 -0.05 .022±.004 10m ~ 27m .024±.008 D2A (0805) 10m ~ 16m 2A (0805) 33m ~ 100m .079±.008 .049±.008 .02±.004 .016±.008 D2B (1206) 10m ~ 16m 2B (1206) 30m ~ 100m .126±.008 .063±.008 .024±.004 .020±.012 D2H (2010) 10m ~ 30m .197±.008 .098±.008 .026±.004 .026±.012 (1.6±0.3) (5.0±0.2) (2.5±0.2) (0.65±0.1) (0.65±0.3) .026±.012 33m ~ 100m (0.65±0.3) D3A (2512) 10m ~ 30m .079±.008 .049±.008 .022±.004 .016±.008 (0.6±0.2) (2.0±0.2) (1.25±0.2) (0.55±0.1) (0.4±0.2) .02±.008 18m ~ 30m (0.5±0.2) 0 .012 +.008 -.004 (0.3 +0.2 -0.1 ) (2.0±0.2) (1.25±0.2) (0.55±0.1) (0.4±0.2) Inner Electrode Derating Curve Dimensions inches (mm) W h a Size Code .039±.008 .126±.008 .063±.008 .024±.004 .020±.008 (1.0±0.2) (3.2±0.2) (1.6±0.2) (0.6±0.1) (0.5±0.2) .031±.008 18m ~ 27m (0.8±0.2) (3.2±0.2) (1.6±0.2) (0.6±0.1) .016 +.008 -.004 (0.4 +0.2 -0.1 ) (0.5±0.3) .063±.012 .079±.012 .248±.008 .122±.008 .024±.004 .031±.012 (2.0±0.3) (6.3±0.2) (3.1±0.2) (0.6±0.1) (0.8±0.3) .031±.012 33m ~ 100m (0.8±0.3) For resistors operated at a terminal part temperature of described for each size or above, a power rating shall be derated in accordance with the derating curve. Please refer to “Introduction of the derating curve based on the terminal part temperature” in the beginning of our catalog prior use. ordering information UR73 Type UR73 UR73D 2A T Power Rating 1E: 0.125W 1J: 0.25W 2A: 0.33W 2B: 0.5W 2H: 0.75W 3A: 1W Termination Material T: Sn For further information on packaging, please refer to Appendix A. TD Packaging TP: 2mm pitch punch paper (1E) TD: 7" punched paper tape (1J, 2A, 2B) TE: 7" embossed plastic (2H, 3A) R100 Nominal Resistance “R” indicates decimal on values = 100mΩ Ex: R100 = 100mΩ “L” indicates decimal on values