RK73B EU RoHS Flat Chip Resistors Construction L c c W t d Coating colorBlack Features 3 RoHS RoHS AEC-Q200 1F1H S mall size and light weight. 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. Applicable to various kinds of automatic mounters for taping, etc. Suitable for both flow and reflow solderings. Products 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, 1H). Type Inch Size Code 1F 01005 1H 0201 1E 0402 1J 0603 2A 0805 2B 1206 2E 1210 W2H 1 2010 W3A 1 2512 Protective coating Resistive film Inner electrode Ni plating Solder plating Ceramic substrate Dimensions L 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 0.2 0.3-0.1 0.50.1 4.54 3.20.2 0.100.03 0.110.03 0.130.02 5.00.2 2.50.2 6.30.2 3.10.2 0.14 9.14 0.2 0.4-0.1 2.60.2 0.04 0.150.05 0.230.03 1.60.2 0.50.3 0.60.1 0.650.15 15.5 24.3 37.1 1 RK73B 2H and RK73B 3A "d" "d"0.40.2 -0.1 mm 1 RK73B 2H and RK73B 3A are also still available (different" d"dimensions=0.4 0.2 -0.1 mm) Type Designation Example Derating Curve 100 RK73B 2B T TD 103 J Product Code Power Rating Terminal Surface Material Taping Nominal Resistance Resistance Tolerance TX4mm width1mm pitch plastic embossed TA1mm pitch press paper TBLTCTCM 2mm pitch press paper TPLTP 2mm pitch punch paper TD4mm pitch punch paper TE4mm pitch plastic embossed BKBulk 3 digits G2% J 5% 1F0.03W TSn 1H0.05W GAu2 1E0.063W LSn/Pb3 1J 0.1W 2A0.125 2B0.25W 2E0.33W 0.5W W2H0.75W W3A1W 2 1E1J2A101M 3 1F1HW2HW3AT 2 Products with gold plated electrodes are also available with 1E, 1J and 2A types 101M , so please consult with us. 3 With type 1F, 1H, W2H, W3A 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. Percent rated power Flat Chip Resistors THICK FILMGENERAL PURPOSE 1F, 1H 80 1E, 1J, 2A, 2B 2E,W2H,W3A 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. Reference Standards IEC 60115-8 JIS C 5201-8 EIAJ RC-2134C 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. Malfunction or failure of the products in such applications may cause loss of human life or serious damage. Oct. 2012 www.koanet.co.jp Type Ratings Power T.C.R. Rating x10-6/K 250 1F 200 1H 200 200 2A 200 2B 200 W2H 200 W3A 1.01M 1.1M10M 1.05.6M 1.05.6M 6.2M10M 6.2M22M -- -- 105.6M 1.0W 400 -- 25V 50V 50V 150V / Packaging & Q'ty/Reelpcs TX TBL 40,000 20,000 TA TCTCM TPLTP TD TE -- -- -- -- -- -- -- 35,000 TC 10,000 TCM15,000 -- -- -- -- -- -- -- 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 -- -- -- -- -- -- 4,000 100V 200V 1.01k 1.1k5.6M 200V 400V 6.2M10M 105.6M 0.75W 400 1.010M 101k 0.33W 400 30V 11M22M 1.01M 1.1k5.6M 15V 1.010M 1.1M10M 0.5W 200 2E 1.010M -- 0.25W 400 1.09.1 1.010M 0.125W 400 1010M -- 0.1W 400 4.76.2k 1010M 0.063W 200 1J 6.8k1M 4.76.2k 0.05W 400 1E 6.8k1M 0.03W 300 Resistance Range Max. Working Max. Overload G2% J5% Voltage Voltage E24 E24 1.05.6M 6.2M22M 1.05.6M 200V 400V 4 4 6.2M22M 500V 500V Rated Ambient Temperature :70 Operating Temperature Range :-551251F1H , -551551E1J2A2B2EW2HW3A x Rated voltage Power RatingxResistance value or Max. working voltage, whichever is lower. 4 4 Please consult with us about the Max. working voltage and the Max. overload voltage with ( ). Performance Performance Requirements R 0.1 Test Items Limit Typical Test Methods Resistance Within specified tolerance -- 25 T.C.R. Within specified T.C.R. -- 25/-55 and 25/125 Overload Short time 2 11F 0.5another x2.55 2Bx2 Rated voltagex2.5 for 5s 2BRated voltagex2 for 5s Resistance to soldering heat 11FW3A10R1M 0.51FW3A10R1M 2605, 10s1s 31FW3AR10, R1M 11FW3AR10, R1M Rapid change of temperature 11F 0.5another 0.51F 0.3another -55 30min. /125 30min.100 cycles Moisture resistance 21J, 2A, 2B 3another 0.751J, 2A, 2B 1.51F 1another 402, 90%95%RH, 1000h 1.5 ON/0.5 OFF 1.5h ON/0.5h OFF cycle 70 Endurance at 70 21J, 2A, 2B 3another 0.751J, 2A, 2B 1another 702, 1000h 1.5 ON/0.5 OFF 1.5h ON/0.5h OFF cycle High temperature exposure 1 0.51F 0.3another 125, 1000h1F, 1H 155, 1000h1E, 1J, 2A, 2B, 2E, W2H, W3A Precautions for Use W2HW3A FR-41F2EW2HW3A RK73B1F 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 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. 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 RK73B1F may be damaged when static electricity occurs and is applied in the equipment assembly process. 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. Malfunction or failure of the products in such applications may cause loss of human life or serious damage. Oct. 2012 www.koanet.co.jp Flat Chip Resistors