RK73H EU RoHS Flat Chip Resistors (Precision Grade) Construction L c c W t d 1F, 1H , 1E, 1J, 2A, 2B, 2E, W2H, W3A, W3A2 Coating colorBlack1F, 1H , Blue1E, 1J, 2A, 2B, 2E, W2H, W3A, W3A2 Features 3 RoHS RoHS AEC-Q200 1F Small size and light weight. E xcellent heat resistance and weather resistance are ensured by the use of metal glaze thick film. H igh stability and high reliability with the triple-layer structure of electrode. A pplicable to various kinds of automatic mounters for taping, etc. S uitable for both flow and reflow solderings. P roducts with lead free termination meet EU-RoHS requirements. EU-RoHS regulation is not intended for Pb-glass contained in electrode, resistor element and glass. AEC-Q200 qualified (Exemption 1F). Type Designation RK73H 2B T TD 1002 F Product Code Power Rating Terminal Surface Material Taping Nominal Resistance Resistance Tolerance 4 digits D0.5% F1% TSn TX4mm width GAu2 1mm pitch plastic LSn/Pb3 embossed TBLTCTCM 2mm pitch press paper TPLTP 2mm pitch punch paper TD4mm pitch punch paper TE4mm pitch plastic embossed BKBulk Dimensions Type Inch Size Code L 1F 01005 1H 0201 1E 0402 1J 0603 2A 0805 2B 1206 2E 1210 W2H 1 2010 W3A 1 2512 W3A2 1 2512 2 1E1J2A101M 3 1F1HW2HW3AW3A2T 2 Products with gold plated electrodes are also available with 1E, 1J and 2A types101M , so please consult with us. 3 With type 1F, 1H, W2H, W3A, W3A2 only T is available as the terminal surface material. EU-RoHS APPENDIX C The terminal surface material lead free is standard. Contact us when you have control request for environmental hazardous material other than the substance specified by EU-RoHS. For further information on taping, please refer to APPENDIX C on the back pages. Ni plating Solder plating Ceramic substrate Dimensionsmm W c d Weight g 1000pcs t 0.40.02 0.20.02 0.60.03 0.30.03 0.10.05 0.1 1.0-0.05 0.50.05 0.20.1 0.05 0.25-0.1 0.350.05 0.68 1.60.2 0.80.1 0.30.1 0.30.1 0.450.1 2.14 2.00.2 1.250.1 0.40.2 0.50.1 4.54 0.100.03 0.110.03 0.130.02 0.3 0.2 -0.1 2.50.2 6.30.2 3.10.2 0.14 9.14 0.2 0.4-0.1 2.60.2 5.00.2 0.04 0.150.05 0.230.03 1.60.2 3.20.2 15.5 0.50.3 0.60.1 24.3 0.650.15 37.1 1 RK73H 2H3A3A2 "d" "d"0.4 0.2 -0.1 mm 1 RK73H 2H, 3A and 3A2 are also still available (different" d"dimensions=0.4 0.2 -0.1 mm) Example 1F0.03W 1H0.05W 1E0.1W 1J 0.1W 0.125 2A0.25 2B0.25W 2E0.5W W2H0.75W W3A1W W3A22W Derating Curve Ambient temperature 100 Terminal part temperature 100 1F 80 1H,1E,1J,2A,2B 2E,W2H,W3A1W 60 40 20 0 -60 -40 -20 -55 0 20 40 60 80 100 120 140 160 70 125 Ambient temperature 155 70 For resistors operated at an ambient temperature of 70 or above, a power rating shall be derated in accordance with the above derating curve. Terminal part temperature RK73H W3A2 100 1H,1E,1J,2A,2B,2E, W2H,W3A1W 80 Percent rated power Protective coating Resistive film Inner electrode Percent rated power Percent rated power Flat Chip Resistors THICK FILMPRECISION 60 40 20 0 -60 -40 -20 -55 0 20 40 60 80 100 120 140 160 70 125 Terminal part temperature 155 80 60 40 20 0 -60 -40 -20 -55 0 20 40 60 80 100 120 140 160 95 Terminal part temperature 155 " " For resistors operated terminal part temperature of described for each size or above, a power rating shall be derated in accordance with derating curve. Please refer to"Introduction of the derating curves based on the terminal part temperature"on the beginning of our catalog before use. Reference Standards IEC 60115-8 JIS C 5201-8 EIAJ RC-2134C Oct. 2018 Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. Contact our sales representatives before you use our products for applications including automotives, medical equipment and aerospace equipment. www.koaglobal.com Malfunction or failure of the products in such applications may cause loss of human life or serious damage. 1 1 Type Ratings Power Rating 1F 0.03W 1H 0.05W 1E 1J 0.1W Rated Ambient Rated Terminal T.C.R. Temp. Part Temp. x10-6/K 200 70 -- 250 200 70 125 400 100 70 125 200 0.1W 0.125W 70 125 2A 0.25W 70 125 2B 0.25W 70 125 100 200 100 200 100 200 400 100 200 400 100 2E 0.5W 70 125 200 400 100 W2H 0.75W 70 125 200 400 100 W3A 1W 70 125 200 400 100 W3A2 2W -- 95 200 400 Resistance Range D:0.5% F:1% E24E96 E24E96 100k2M4 -- 1091k4 101M 1010M4 -- 19.14 101M 101M 19.76 -- 1.02M10M 1.02k1M 1.02k1M -- 1.02M10M 101k 101k -- 19.76 101M 101M 19.76 -- 1.02M10M 101M 101M 19.76 1.02M5.6M -- 5.62M10M 101M 101M 19.76 1.02M5.6M -- 5.62M10M 101M 101M 19.76 1.02M5.6M -- 5.62M10M 101M 101M 19.76 1.02M5.6M -- 5.62M10M 101M 101M 19.76 1.02M5.6M -- 5.62M10M Max. Working Max. Overload Voltage Voltage TD TE 30V 40,000 20,000 -- -- -- -- 25V 50V -- -- TC 10,000 TCM15,000 -- -- -- -- -- 150V 200V TBL / Packaging & Q'ty/Reelpcs TCTCM TPLTP 20V 75V TX -- -- -- TPL20,000 TP 10,000 -- -- -- TP 10,000 5,000 -- -- -- -- TP 10,000 5,000 4,000 -- -- -- -- 5,000 4,000 -- -- -- -- 5,000 4,000 -- -- -- -- -- 4,000 100V 200V 400V 200V 400V -- -- -- -- -- 4,000 200V 400V -- -- -- -- -- 4,000 Operating Temperature Range :-551251F -551551H1E1J2A2B2EW2HW3AW3A2 x Rated voltage Power RatingxResistance value or Max. working voltage, whichever is lower. RK73Z For flat chip jumper resistor, please refer to RK73Z series. 4 RK73H1F F1% RK73H1H 1R9.11MR10M E24 4 The nominal resistance value for RK73H1F F1% and RK73H1H 1R9.1, 1MR10M is E24. 1417 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". For more details, please refer to"Introduction of the derating curves based on the terminal part temperature"in page 14 to 17. 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 specifications before use. Performance Performance Requirements R 0.1 Limit -- Within specified tolerance -- Within specified T.C.R Test Items Resistance T.C.R. Overload Short time 11FW3A10R1M 31HW3AR10, R1M 11F 0.5another 0.51FW3A10R1M 11HW3AR10, R1M 11F 0.5another 0.51F 0.3another 2 Resistance to soldering heat Rapid change of temperature Moisture resistance 21J, 2A, 2B 3another 70 Endurance at 70 High temperature exposure 21J, 2A, 2B 3another Typical 1 0.751J, 2A, 2B 1.51F 1another 0.751J, 2A, 2B 1another 0.51F 0.3another Test Methods 25 25/ -55 and 25/ 125 x2.55 1E 2B W3A2x2 Rated voltagex2.5 for 5s 1E, 2B, W3A2Rated voltagex2 for 5s 2605, 10s1s -55 30min. /125 30min.100 cycles 402, 90%95%RH, 1000h 1.5 ON / 0.5 OFF 1.5h ON / 0.5h OFF cycle 702, 1000h 1.5 ON / 0.5 OFF 1.5h ON / 0.5h OFF cycle 125, 1000h1F 155, 1000h1H, 1E, 1J, 2A, 2B, 2E, W2H, W3A, W3A2 Precautions for Use W2HW3AW3A2 FR-41F2E W2HW3AW3A2 RK73H1F The substrate of chip resistors is alumina. Cracks may occur at the connection of solder (solder fillet portion) due to the difference of the coefficient of thermal expansion from a mounting board when heat stress like heat cycle, etc. are repeatedly given to them. Care should be taken to the occurrence of the cracks when the change in ambient temperature or ON /OFF of load is repeated, especially when large types of W2H/W3A/W3A2 which have large thermal expansion and also self heating. By general temperature cycle test using glass-epoxy (FR-4) boards under the maximum/minimum temperatures of operating temperature range, the crack does not occur easily in the types of 1F2E, but the crack tends to occur in the types of W2H/W3A/W3A2. The occurrence of the crack by heat stress may be influenced by the size of a pad, solder volume, heat radiation of mounting board etc., so please pay careful attention to designing when a big change in ambient temperature and conditions for use like ON/OFF of load can be assumed. Care should be taken that RK73H1F may be damaged when static electricity occurs and is applied in the equipment. Oct. 2018 Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. Contact our sales representatives before you use our products for applications including automotives, medical equipment and aerospace equipment. www.koaglobal.com Malfunction or failure of the products in such applications may cause loss of human life or serious damage. Flat Chip Resistors