EU THICK FILM PRECISION RoHS Flat Chip Resistors (Precision Grade) RK73H Construction 1F, 1H, 1E, 1J, 2A, 2B, 2E, W2H, W3A, W3A2 Coating colorBlack1F, 1H, Blue1E, 1J, 2A, 2B, 2E, W2H, W3A, W3A2 Features Dimensions Dimensionsmm Type Weightg Inch Size Code 1000pcs L W c d t 1F 3 0.40.02 0.20.02 0.100.03 0.110.03 0.130.02 0.04 01005 1H 0.60.03 0.30.03 0.10.05 0.150.05 0.230.03 0.14 0201 1E 0.1 0.05 1.0 0.50.05 0.20.1 0.25 0.350.05 0.68 0.05 0.1 0402 R oHS 1J RoHS 1.60.2 0.80.1 0.30.1 0.30.1 0.450.1 2.14 0603 A EC-Q2001F 2A 0.2 2.00.2 1.250.1 0.40.2 0.3 0.50.1 4.54 0.1 Small size and light weight. 0805 Excellent heat resistance and weather resistance are 2B 1.60.2 9.14 1206 ensured by the use of metal glaze thick film. 0.2 0.4 3.20.2 0.1 2E High stability and high reliability with the triple-layer 2.60.2 15.5 1210 structure of electrode. W2H Applicable to various kinds of automatic mounters for 1 5.00.2 2.50.2 0.50.3 0.60.1 24.3 2010 taping, etc. W3A 1 0.650.15 Suitable for both flow and reflow solderings. 2512 6.30.2 3.10.2 37.1 Products with lead free termination meet EU-RoHS W3A2 1 requirements. EU-RoHS regulation is not intended for 2512 Pb-glass contained in electrode, resistor element and glass. 0.2 1 RK73H 2H3A3A2dd0.4 m0.1 m AEC-Q200 qualified (Exemption 1F). 0.2 1 RK73H 2H, 3A and 3A2 are also still available (differentddimensions=0.4 mm) 0.1 Type Designation Derating Curve Terminal part temperature Example Ambient temperature Terminal part temperature RK73H W3A2 RK73H 2B T TD 1002 F Product Power Terminal Taping Nominal Resistance Code Rating Surface Material Resistance Tolerance 1 F 0.03W TSn TX4mm width- 4 digits D0.5% 2 1H0.05W GAu 1mm pitch plastic F 1% 3 1E0.1W LSn/Pb embossed 1 J 0.1W TBLTCTCM 0.125 2mm pitch 2A0.25 press paper 70 2B0.25W TPLTP 2E0.5W 2mm pitch W2H0.75W punch paper W3A1W TD4mm pitch W3A22W punch paper TE4mm pitch For resistors operated at an For resistors operated terminal part temperature of described for plastic ambient temperature of 70 each size or above, a power rating shall be derated in accordance embossed or above, a power rating shall with derating curve. BKBulk be derated in accordance with Please refer toIntroduction of the derating curves based on 2 1E1J2A101M the above derating curve. the terminal part temperature on the beginning of our catalog before use. 3 1F1HW2HW3AW3A2T 2 Products with gold plated electrodes are also available with 1E, 1J and 2A types101M, so please consult with us. Reference Standards 3 With type 1F, 1H, W2H, W3A, W3A2 only T is available as the terminal surface material. IEC 60115-8 EU-RoHS JIS C 5201-8 EIAJ RC-2134C 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. 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. Malfunction or failure of the products in such applications may cause loss of human life or serious damage. www.koaglobal.com Flat Chip Resistors Flat Chip Resistors Ratings / Resistance Range Power Max. Working Packaging & Q ty/Reelpcs Type Rated Ambient Rated Terminal T.C.R. D:0.5% F:1% Max. Overload Rating Voltage 6 Temp. Part Temp. 10 /K Voltage E24E96 E24E96 TX TBL TCTCM TPLTP TD TE 4 200 100k2M 1F 0.03W 70 20V 30V 40,000 20,000 4 250 1091k 4 200 101M 1010M TC 10,000 1H 0.05W 70 125 25V 50V 4 400 19.1 TCM15,000 100 101M 101M TPL20,000 1E 0.1W 70 125 19.76 200 TP 10,000 1.02M10M 100 1.02k1M 1.02k1M 75V 100V 0.1W 200 1.02M10M 1J 70 125 TP 10,000 5,000 100 101k 101k 0.125W 200 19.76 100 101M 101M 2A 0.25W 70 125 200 19.76 150V 200V TP 10,000 5,000 4,000 400 1.02M10M 100 101M 101M 19.76 2B 0.25W 70 125 200 5,000 4,000 1.02M5.6M 400 5.62M10M 100 101M 101M 19.76 2E 0.5W 70 125 200 200V 400V 5,000 4,000 1.02M5.6M 400 5.62M10M 100 101M 101M 19.76 W2H 0.75W 70 125 200 4,000 1.02M5.6M 400 5.62M10M 100 101M 101M 19.76 W3A 1W 70 125 200 200V 400V 4,000 1.02M5.6M 400 5.62M10M 100 101M 101M 19.76 W3A2 2W 95 200 200V 400V 4,000 1.02M5.6M 400 5.62M10M Operating Temperature Range :551251F551551H1E1J2A2B2EW2HW3AW3A2 Rated voltage Power RatingResistance value or Max. working voltage, whichever is lower. RK73Z For flat chip jumper resistor, please refer to RK73Z series. 4 RK73H1FF1%RK73H1H1R9.11MR10ME24 4 The nominal resistance value for RK73H1FF1%and RK73H1H1R9.1, 1MR10Mis E24. 1417 If any questions arise whether to use theRated Ambient Temperatureor theRated Terminal Part Temperaturein your usage conditions, please give priority to theRated Terminal Part Temperature. For more details, please refer toIntroduction of the derating curves based on the terminal part temperaturein 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 R0.1 Test Items Test Methods Limit Typical 25 Resistance Within specified tolerance 25/ 55 and 25/ 125 T.C.R. Within specified T.C.R 11F 2.551E2BW3A22 2 OverloadShort time 0.5another Rated voltage2.5 for 5s1E, 2B, W3A2Rated voltage2 for 5s 11FW3A10R1M 0.51FW3A10R1M 2605, 10s1s Resistance to soldering heat 31HW3AR10, R1M 11HW3AR10, R1M 11F 0.51F 5530min./12530min.100 cycles Rapid change of temperature 0.5another 0.3another 0.751J, 2A, 2B 21J, 2A, 2B 402, 90%95%RH, 1000h 1.51F Moisture resistance 3another 1.5 ON/ 0.5 OFF 1.5h ON/ 0.5h OFF cycle 1another 70 21J, 2A, 2B 0.751J, 2A, 2B 702, 1000h Endurance at 70 3another 1another 1.5 ON/ 0.5 OFF 1.5h ON/ 0.5h OFF cycle 0.51F 125, 1000h1F 1 High temperature exposure 0.3another 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. Malfunction or failure of the products in such applications may cause loss of human life or serious damage. www.koaglobal.com