WK73R2ATTD751J

wide terminal type flat chip resistors EU features • Wide-side termination (reverse-geometry) type flat chip resistor • High reliability and performance with T.C.R. ±100 x 10-6/K, resistance tolerance ±0.5% • Products with lead-free terminations meet EU RoHS requirements. EU RoHS regulation is not intended for Pb-glass contained in electrode, resistor element and glass. • AEC-Q200 Tested Type dimensions and construction L c L 1E (0204) 1J (0306) 2A (0508) .020±.002 (0.5±0.05) .031±.004 (0.8±0.1) .049±.006 (1.25±0.15) .039±.002 (1.0±0.05) .063±.004 (1.6±0.1) .079±.006 (2.0±0.15) .006±.002 (0.15±0.05) .006±.004 (0.15±0.1) .012±.008 (0.3±0.2) .006±.002 (0.15±0.05) .008±.004 (0.2±0.1) .014±.008 (0.35±0.2) 2B (0612) 2H (1020) 2J* (1218) 3A (1225) .063±.006 (1.6±0.15) .098±.006 (2.5±0.15) .122±.006 (3.1±0.15) .122±.006 (3.1±0.15) .126±.008 (3.2±0.2) .197±.006 (5.0±0.15) .181±.006 (4.6±0.15) .252±.006 (6.3±0.15) .012±.008 (0.3±0.2) .016±.008 (0.4±0.2) .016±.008 (0.4±0.2) .018±.008 (0.45±0.2) .018±.006 (0.45±0.15) c W Solder Plating Ni Plating t d Inner Resistive Electrode Film Dimensions inches (mm) W c d (Inch Size Code) Protective Coating Ceramic Substrate Derating Curve 60 40 100 2J (100°C) 60 80 % Rated Power 80 % Rated Power 80 % Rated Power 100 1E, 1J, 2A, 2B, 2H, 3A (125°C) 40 20 20 0 20 .024±.004 (0.6±0.1) .030±.006 (0.75±0.15) WK73R2B (1W), WK73R3A (2W) 100 0 -60 -40 -20 -55 t .014±.002 (0.35±0.05) .018±.004 (0.45±0.1) .022±.004 (0.55±0.1) 40 60 80 100 120 140 160 70 155 Ambient Temperature (°C) 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. ordering information WK73R 2J Type Size WK73R 1E: 0.33W 1J: 0.5W 2A: 0.75W, 1W 2B: 0.75W, 1W 2H: 1W 2J*: 1W 3A: 1.5W, 2W 40 20 0 -60 -40 -20 -55 80 100 120 140 160 125 155 Terminal Part Temperature (°C) 0 20 40 60 0 -60 -40 -20 -55 0 20 40 60 80 100 120 140 160 115 155 Terminal Part Temperature (°C) For resistors operated terminal temperature of described for each size or above, a power rating shall be derated in accordance with the derating curve above. Please refer to “Introduction of the derating curve based on the terminal part temperature” in the beginning of our catalog before use. If you want to use at rated power (*1), use derating curves based on the terminal part temperature on the right side graph. T Termination Material T: Sn 2B, 3A (115°C) 60 TE Packaging TP: 0204: 7" 2mm pitch punched paper TD: 0306, 0508, 0612: 7" 4mm pitch punched paper TE: 1020, 1218, 1225: 7" embossed plastic For further information on packaging, please refer to Appendix A * WK73R2J Not Recommended for New Design Recommended replacement WK73R2H 33L0 F Nominal Resistance ±1%: 3 significant figures + 1 multiplier “R” indicates decimal on value