RK73B general purpose 2%, 5% tolerance thick film chip resistor EU features 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 (2H/W2H), 2512 (3A/W3A/W3A2) dimensions and construction Type* Dimensions inches (mm) (Inch Size Code) L Wc d t L c c 1F .015.001 .007.001 .004.001 .004.001 .005.001 (01005) (0.40.02) (0.20.02) (0.100.03) (0.110.03) (0.130.02) W Sn 1H .024.001 .012.001 .004.002 .006.002 .009.001 Plating (0201) (0.60.03) (0.30.03) (0.10.05) (0.150.05) (0.230.03) Ni t Plating +.004 +.002 .039 .01 1E -.002 .02.002 .008.004 -.004 .014.002 d Protective Resistive Inner Coating Film Electrode (0402) +0.1 (0.50.05) (0.20.1) +0.05 (0.350.05) (1.0 ) (0.25 ) -0.05 -0.1 Ceramic Substrate 1J .063.008 .031.004 .012.004 .012.004 .018.004 100 Derating Curve (0603) (1.60.2) (0.80.1) (0.30.1) (0.30.1) (0.450.1) 1H, 1E, 1J, 2A, 2B, 2E, 80 W2H, W3A (1W) 100 +.008 .012 60 1H, 1E, 1J, 2A, 2B, 2A .079.008 .049.004 .016.008 -.004 .02.004 1F 2E, W2H, W3A (1W), 80 W3A2 (2W) +0.2 (0805) (2.00.2) (1.250.1) (0.40.2) (0.50.1) 40 (0.3 ) -0.1 60 20 2B .063.008 40 0 (1206) (1.60.2) -60 -40 -20 0 20 40 60 80 100 120 140 160 .126.008 +.008 20 -55 70 125 155 (3.20.2) .016 Terminal Part Temperature 2E .102.008 -.004 (C) 0 (1210) (2.60.2) +0.2 100 -60 -40 -20 0 20 40 60 80 100 120 140 160 (0.4 ) -0.1 -55 70 125 155 2H 80 Ambient Temperature (C) (2010) W3A2 .197.008 .098.008 60 For resistors operated at an ambient (5.00.2) (2.50.2) W2H .02.012 .026.006 .024.004 40 temperature of 70C or higher, the (2010) (0.50.3) (0.650.15) (0.60.1) power shall be derated in accordance 20 +.008 with the above derating curve016 3A -.004 0 -60 -40 -20 0 20 40 60 80 100 120 140 160 +0.2 (2512) -55 95 155 (0.4 ) .248.008 .122.008 -0.1 Terminal Part Temperature (C) (6.30.2) (3.10.2) W3A/W3A2 .026.006 When the terminal part temperature of the resistor exceeds the rated terminal part (2512) (0.650.15) temperature shown above, the power shall be derated according to the derating curve. Please refer to Introduction of the derating curves based on the terminal part temperature * Parentheses indicate EIA package size codes. on the beginning of our catalog before use ordering information RK73B 2B T TD 102 J Termination Nominal Type Size Packaging Tolerance Material Resistance 1F T: Sn TX: 01005 only: 4mm width - 1mm pitch plastic embossed 2 significant G:2% (1F ~ W3A2) figures + 1 1H TBL: 01005 only: 2mm pitch pressed paper J: 5% multiplier Contact factory TC: 0201 only: 7 2mm pitch pressed paper 1E for below options: R indicates (TC: 10,000 pcs/reel, TCM: 15,000 pcs/reel) 1J decimal on L: SnPb TPL: 0402 only: 2mm pitch punched paper 2A value <10 (1E, 1J, 2A, 2B, TP: 0402, 0603 & 0805: 7 2mm pitch punched paper 2B 2E, 2H, 3A) TD: 0603, 0805, 1206 &1210: 7 4mm pitch punched paper 2E G: Au TE: 0805, 1206, 1210, 2010 & 2512: 7 4mm plastic W2H (1E ~ 2A: embossed W3A 10 ~ 1M) For further information on packaging, please refer to Appendix A 2H 3A W3A2 Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 07/15/21 KOA Speer Electronics, Inc. 199 Bolivar Drive Bradford, PA 16701 USA 814-362-5536 Fax: 814-362-8883 www.koaspeer.com 15 % Rated Power % Rated Power resistorsresistors RK73B general purpose 2%, 5% tolerance thick film chip resistor applications and ratings Rated Resistance Range Rated Maximum Maximum Operating Part Power Terminal T.C.R. Ambient Working Overload Temperature -6 Designation Rating Part (x10 /K) G2% J5% Temp. Voltage Voltage Range Temp. E-24 E-24 200 100k - 1M 100k - 10M -55C to RK73B1F (01005) 250 10 - 91k 10 - 91k 0.03W 20V 30V +125C 0~+300 1 - 9.1 1 - 9.1 200 10 - 10M 10 - 10M RK73B1H (0201) 0.05W 25V 50V 1 - 9.1 400 RK73B1E (0402) 0.1W 75V 200 1 - 10M 1 - 10M 200 1.1k - 1M 1.1k - 10M 0.1W 100V RK73B1J (0603) 400 11M - 22M 75V 0.125W 200 1 - 1k 1 - 1k RK73B2A (0805) 0.25W 200 1 - 1M 1 - 1M 150V 200V 1.1M - 10M 1.1M - 10M 400 70C 125C 200 1 - 5.6M 1 - 5.6M -55C to RK73B2B (1206) 0.25W +155C 6.2M - 10M 6.2M - 22M 400 200 10 - 5.6M 1 - 5.6M RK73B2E (1210) 0.50W 200V 400V 6.2M - 10M 400 200 10 - 5.6M 1 - 5.6M RK73BW2H/2H 0.75W (2010) 400 6.2M - 22M RK73BW3A/3A 200 10 - 5.6M 1 - 5.6M 1.0W 200V 400V (2512) 400 6.2M - 22M 200 10 - 5.6M 1 - 5.6M RK73BW3A2 200V 400V 2.0W 95C (2512) 400 6.2M - 22M Rated voltage = Power rating x resistance value or max. working voltage, whichever is lower If any questions arise on whether to use the Rated Ambient Temperaute 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 based on the terminal part temperature in the beginning of our catalog. Temperature rise at high power will depend on PCB layout. Be sure to contact factory prior to use and monitor terminal part temperature. environmental applications Temperature Rise One-Pulse Limiting Electric Power RK73B 1F-1J RK73B 2A-2E RK73B W2H-W3A2 RK73B 1F-2A RK73B 2B-W3A2 60 100 300 100 1000 1E 2E 90 W3A2 1J 50 250 80 2E 1E W3A2 10 1J 70 2B 40 1H 200 100 2A W3A 1F 60 2A W3A/W3A2 2B 1H W2H 30 50 150 1 1F 1J 2A W3A 40 2H/W2H 1E 20 100 10 W2H 30 0.1 1H 20 10 50 2E 1F 10 2B 0 0 0 0.01 1 0 25 50 75 100 0 25 50 75 100 0 25 50 75 100 0.001 0.01 0.1 1 10 100 1000 0.001 0.01 0.1 1 10 100 1000 Power Rating Power Rating Power Rating Pulse Duration Pulse Duration (%) (%) (%) (ms) (ms) Measurement condition Room temperature: 25C The maximum applicable voltage is equal to the max. overload voltage. Please ask us Regarding the temperature rise, the value of the temperature PCB: FR-4t = 1.6mm about the resistance characteristic of continuous applied pulse. The pulse endurance Cu foil thickness: 35m varies per conditions and board for use since the temperature values are not assured values, so be sure to check the products on actual equipment Hot spot is measured under our measuring conditions. when you use them. Terminal Performance Characteristics Requirement R (%+0.1 ) Parameter Limit Typical Test Method Resistance Within specified tolerance 25C T.C.R. Within specified T.C.R. +25C/-55C and +25C/+125C 1%: 1F Rated Voltage x 2.5 for 5 seconds Overload (Short time) 2% 0.5%: Another (1E, 2B, W3A2: Rated Voltage x 2 for 5 seconds) 1%: 1F~W3A2 (10R1M) 0.5%: 1F~W3A2 (10R1M) Resistance to Soldering Heat 260C 5C, 10 seconds 1 second 3%: 1F~W3A2 (R<10, R>1M) 1%: 1F~W3A2 (R<10, R>1M) 1%: 1F 0.5%: 1F Rapid Change of Temperature -55C (30 minutes), +125C (30 minutes), 100 cycles 0.5%: Another 0.3%: Another 2%: 1J, 2A, 2B 0.75%: 1J, 2A, 2B 40C 2C, 90%-95% RH, 1000 hours, 1.5 hr ON, Moisture Resistance 3%: Another 1.5%: 1F 1%: Another 0.5 hr OFF cycle 2%: 1J, 2A, 2B 0.75%: 1J, 2A, 2B 70C 2C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle Endurance at 70C 3%: Another 1%: Another 0.5%: 1F +125C, 1000 hours: 1F +155C, 1000 hours: 1E, 1H, High Temperature Exposure 1% 0.3%: Another 1J, 2A, 2B, 2E, 2H/W2H, 3A/W3A/W3A2 Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 10/19/20 16 KOA Speer Electronics, Inc. 199 Bolivar Drive Bradford, PA 16701 USA 814-362-5536 Fax: 814-362-8883 www.koaspeer.com Temperature Rise (C) Temperature Rise (C) Temperature Rise (C) One-Pulse Limiting Electric One-Pulse Limiting Electric Power (W)