resistors RK73-RT flat chip resistors (anti-sulfuration) features EU Excellent anti-sulfuration characteristic due to using high sulfuration-proof inner top electrode material Excellent heat resistance and weather resistance are ensured by the use of metal glaze thick film High stability and high reliability with the triple-layer structure of electrode Suitable for both flow and reflow 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: 0201 (1H), 0402 (1E), 0603 (1J), 0805 (2A), 1206 (2B), 1210 (2E), 2010 (W2H), 2512 (W3A) Type Dimensions inches (mm) dimensions and construction (Inch Size L Wc d t Code) L 1F .016.001 .008.001 .004.001 .004.001 .005.001 c c (01005) (0.40.02) (0.20.02) (0.10.03) (0.110.03) (0.130.02) 1H .024.001 .012.001 .004.002 .006.002 .009.001 W (0201) (0.60.03) (0.30.03) (0.10.05) (0.150.05) (0.230.03) Sn +.004 +.002 Plating .039 .01 1E -.002 .02.002 .008.004 -.004 .014.002 Ni +0.1 +0.05 t (0402) (0.50.05) (0.20.1) (0.350.05) (1.0 ) (0.25 ) Plating -0.05 -0.1 1J .063.008 .031.004 .012.004 .012.004 .018.004 d Protective Resistive Inner Coating Film Electrode (0603) (1.60.2) (0.80.1) (0.30.1) (0.30.1) (0.450.1) Ceramic +.008 .012 Substrate 2A .079.008 .049.004 .016.008 -.004 .02.004 (0805) (2.00.2) (1.250.1) (0.40.2) +0.2 (0.50.1) (0.3 ) -0.1 2B .063.008 +.008 .016 (1206) (1.60.2) .126.008 -.004 +0.2 (3.20.2) 2E .102.008 (0.4 ) -0.1 (1210) (2.60.2) W2H .197.008 .098.008 .02.012 .024.004 (2010) (5.00.2) (2.50.2) (0.50.3) (0.60.1) .026.006 W3A/ (0.650.15) .248.008 .122.008 1 W3A2 (6.30.2) (3.10.2) (2512) 1 RK73Z exempt ordering information RK73H 2A RT TD 1002 F Power Termination Nominal Resistance Type Packaging Rating Material Resistance Tolerance TX: 01005 only: 4mm width - 1mm pitch plastic embossed RK73B 1F RT: Sn RK73B: D: 0.5% TBL: 01005 only: 2mm pitch pressed paper Anti-Sulfur 3 digits RK73H 1H F: 1% TC: 0201 only: 7 2mm pitch pressed paper RK73H: RK73Z 1E G: 2% (TC: 10,000 pcs/reel, TCM: 15,000 pcs/reel) 4 digits TPL: 0402 only: 2mm pitch punch paper 1J J: 5% TP: 0402, 0603, 0805: 7 2mm pitch punch paper RK73Z: 2A TD: 0603, 0805, 1206, 1210:7 4mm pitch punched paper None 2B TE: 0805, 1206, 1210, 2010 & 2512: 7 embossed plastic For further information on packaging, please refer to Appendix A 2E W2H W3A W3A2 Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 10/21/20 50 KOA Speer Electronics, Inc. 199 Bolivar Drive Bradford, PA 16701 USA 814-362-5536 Fax: 814-362-8883 www.koaspeer.com1.02k - 1M RK73-RT flat chip resistors (anti-sulfuration) applications and ratings RK73B/RK73H Rated Resistance Range Rated T.C.R. Maximum Maximum Operating Part Power Terminal RK73H RK73B Ambient (ppm/C) Working Overload Temp. Designation Rating Part D0.5% G2% J5% Temp. Max. Voltage Voltage Range Temp. E24, E96 E24 E24 2 100k - 2M 100k - 1M 100k - 10M 200 -55C 2 250 to 0.03W 10 - 91k 10 - 91k 10 - 91k 20V 30V +125C 0 - +300 1 - 9.1 1 - 9.1 100 - 100k 100 - 1M 100 - 1M 200 1H 25V 50V 0.05W 300 10 - 97.6 10 - 91 100 100 - 1M 10 - 1M 1E 0.1W 200 1.02M - 10M 10 - 10M 1 - 10M 100 1.02k - 1M 75V 100V 0.1W 200 1.02M - 10M 1.1k - 10M 1.1k - 10M 1J 100 100 - 1k 10 - 1k 0.125W 200 10 - 1k 1 - 1k 100 100 - 1M 10 - 1M 2A 150V 200V 70C 125C 0.25W 200 1.02M - 10M 10 - 10M 1 - 10M -55C 100 - 1M 100 10 - 1M to 2B 0.25W 200 1.02M - 10M 10 - 10M 1 - 10M +155C 100 - 1M 10 - 1M 100 2E 0.5W 200 10 - 1M 1 - 1M 100 10 - 1M 10 - 1M W2H 0.75W 1 - 9.76 200V 400V 200 1 - 10M 1 - 10M 1.02M - 10M 10 - 1M 100 10 - 1M W3A 1W 200 1.02M - 10M 10 - 10M 1 - 10M 10 - 1M 100 10 - 1M 3 W3A2 2W 95C 200 1.02M - 10M 10 - 10M 1 - 10M Rated voltage = Power rating x resistance value or max. working voltage, whichever is lower 2 The nominal resistance value for RK73H1F (F:1%) is E24 3 If you use at the rated power, please keep the condition that the terminal of the resistor is below the rated terminal part temperature. Please refer to the derating curves based on the terminal temperature. If any questions arise whether to use the Rated Ambient Temperature or the Rated Terminal Part Temperature, in your usage conditions, please give priority to the Rated Terminal Part Temperature. Prior to use and for more details refer to Introduction of the derating curves in the terminal part temperature in the beginning of the catalog. While using under high power, the temperature of the product may increase depending on the condition of heat dissipation from PCB. Be sure to check the terminal part temperature as well as precautions to use on delivery specification before use. Derating Curve RK73B-RK73H-RT RK73B-RK73H-RK73Z-RT RK73B-RK73H-RK73Z-RT Terminal Part Temperature W3A2 Ambient Temperature Terminal Part Temperature 100 100 100 80 80 80 1H, 1E, 1J, 2A, 2B, 1F 1H, 1E, 1J, 2A, 2B, 2E, 2E, W2H, W3A (1W), W2H, W3A (1W) W3A2 (2W) 60 60 60 40 40 40 20 20 20 0 0 0 -60 -40 -20 0 20 40 60 80 100 120 140 -60 -40 -20 0 20 40 60 80 100 120 140 160 -60 -40 -20 0 20 40 60 80 100 120 140 160 -55 70 125 155 -55 95 155 -55 125 155 Terminal Part Temperature Ambient Temperature Terminal Part Temperature (C) (C) (C) For resistors operated at an ambient temperature When the terminal part temperature of the resistor exceeds the rated terminal part temperature of 70 or higher, the power (for RK73B, RK73H) shown above, the power shall be derated according to the derating curve. or a current rating (for RK73Z) shall be derated in Please refer to Introduction of the derating curves based on the terminal part temperature on accordance with the above derating curve. the beginning of our catalog before use. Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 6/29/20 KOA Speer Electronics, Inc. 199 Bolivar Drive Bradford, PA 16701 USA 814-362-5536 Fax: 814-362-8883 www.koaspeer.com 51 F1% 2 E24, E96 1F % Rated Power for RK73B, RK73H % Rated Current for RK73Z % Rated Power for RK73B, RK73H % Rated Current for RK73Z % Rated Power resistors