RK73B s r general purpose 2%, 5% tolerance o t thick film chip resistor s si e EU r 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 Qualified: 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) L (Inch Size Code) L W c d t c c 1F .015±.001 .007±.001 .004±.001 .004±.001 .005±.001 (01005) (0.4±0.02) (0.2±0.02) (0.10±0.03) (0.11±0.03) (0.13±0.02) W 1H .024±.001 .012±.001 .004±.002 .006±.002 .009±.001 Solder (0201) (0.6±0.03) (0.3±0.03) (0.1±0.05) (0.15±0.05) (0.23±0.03) Plating t Ni 1E .039 +-..000042 .02±.002 .008±.004 .01 +-..000024 .014±.002 Plating (0402) (1.0 +0.1 ) (0.5±0.05) (0.2±0.1) (0.25 +0.05) (0.35±0.05) -0.05 -0.1 d Protective Resistive Inner Coating Film Electrode 1J .063±.008 .031±.004 .012±.004 .012±.004 .018±.004 Ceramic (0603) (1.6±0.2) (0.8±0.1) (0.3±0.1) (0.3±0.1) (0.45±0.1) Substrate Derating Curve 2A .079±.008 .049±.004 .016±.008 .012 +-..000084 .02±.004 (0805) (2.0±0.2) (1.25±0.1) (0.4±0.2) (0.3 +0.2) (0.5±0.1) 100 100 -0.1 2B .063±.008 80 80 wer 1H, 1EW, 12JH, ,2 WA,3 2AB (,1 2WE), (1206) .126±.008 (1.6±0.2) 4600 1F 1 E , 31AH3,, A W1, J2W, H22,AH W,, 23WBA3, A2E, 2H, % Rated Po4600 W3A2 (122E10) (3.2±0.2) .1(20.26±±.00.20)8 .(001.46 ++--00..00..1200)84 20 20 2H 00 20 40 60 80 100 120 140 160 180 -060 -40 -20 0 20 40 60 80 100120 140 160 (2010) .197±.008 .098±.008 Am7b0ient Temperatur1e25 155 -55 Terminal Part Temperatu9r5e 125 155 W2H (5.0±0.2) (2.5±0.2) .02±.012 .026±.006 .024±.004 (°C) (°C) (2010) (0.5±0.3) (0.65±0.15) (0.6±0.1) For resistors operated at an ambient For resistors operated at a terminal part temperature of 70°C or above, a power temperature of described for each size or 3A .016 +-..000084 rwaittihn gth seh aabll obvee ddeerraatetindg i nc uarcvceo.rdance aabccoovred ,a an cpeo wweitrh r athtien ga bsohvaell bdee rdaetinragt ecdu rivne. (2512) .248±.008 .122±.008 (0.4 +-00..12) Please refer to “Introduction of the derating W3A/W3A2 (6.3±0.2) (3.1±0.2) .026±.006 curve based on the terminal part temperature” (2512) (0.65±0.15) in the beginning of our catalog before use. ordering information * Parentheses indicate EIA package size codes. 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% 1H (1F ~ W3A2) TBL:01005 only: 2mm pitch pressed paper figures + 1 J: ±5% 1E Contact factory TC: 0201 only: 7" 2mm pitch pressed paper multiplier (TC: 10,000 pcs/reel, TCM: 15,000 pcs/reel) for below options: “R” indicates 21AJ L(1: ES,n 1PJb, 2A, 2B, TTCPDD:: 00240012 oonnllyy:: 1100"" 22mmmm ppiittcchh pprlaesstsice de mpabpoesrsed dvaelcuiem <a1l 0oΩn 2B TPL:0402 only: 2mm pitch punched paper 2E, 2H, 3A) 2E TP: 0402, 0603 & 0805: 7" 2mm pitch punched paper G: Au TD: 0603, 0805, 1206 &1210: 7" 4mm pitch punched paper W2H (1E ~ 2A: TDD: 0603, 0805, 1206 &1210: 10" paper tape W3A 10Ω~ 1MΩ) TE: 0805, 1206, 1210, 2010 & 2512: 7" plastic embossed 2H TED: 0805, 1206, 1210, 2010 & 2512: 10" plastic embossed 3A For further information on packaging, please refer to Appendix A W3A2 Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 2/04/19 15 KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com

RK73B r e s general purpose 2%, 5% tolerance is thick film chip resistor t o r s applications and ratings Rated Rated Resistance Range Maximum Maximum Operating Part Power Terminal T.C.R. Ambient Working Overload Temperature Designation Rating Part (x10-6/K) G±2% J±5% Temp. Voltage Voltage Range Temp. E-24 E-24 ±200 100kΩ - 1MΩ 100kΩ - 10MΩ R(K017030B51)F 0.03W — ±250 10Ω - 91kΩ 10Ω - 91kΩ 20V 30V -+5152°C5° Cto 0~+300 1Ω - 9.1Ω 1Ω - 9.1Ω RK73B1H ±200 10Ω - 10MΩ 10Ω - 10MΩ (0201) 0.05W ±400 — 1Ω - 9.1Ω 25V 50V RK73B1E (0402) 0.1W ±200 1Ω - 10MΩ 1Ω - 10MΩ 75V ±200 1.1kΩ - 1MΩ 1.1kΩ - 10MΩ 100V RK73B1J 0.1W (0603) ±400 — 11MΩ - 22MΩ 75V 0.125W ±200 1Ω - 1kΩ 1Ω - 1kΩ RK73B2A ±200 1Ω - 1MΩ 1Ω - 1MΩ 0.25W 150V 200V (0805) 70°C ±400 1.1MΩ - 10MΩ 1.1MΩ - 10MΩ 125°C RK73B2B 0.25W ±200 1Ω - 5.6MΩ 1Ω - 5.6MΩ -55°C to (1206) ±400 6.2MΩ - 10MΩ 6.2MΩ - 22MΩ +155°C ±200 10Ω - 5.6MΩ 1Ω - 5.6MΩ RK73B2E 0.50W 200V 400V (1210) ±400 — 6.2MΩ - 10MΩ RK73BW2H/2H ±200 10Ω - 5.6MΩ 1Ω - 5.6MΩ 0.75W (2010) ±400 — 6.2MΩ - 22MΩ RK73BW3A/3A ±200 10Ω - 5.6MΩ 1Ω - 5.6MΩ 1.0W 200V 400V (2512) ±400 — 6.2MΩ - 22MΩ RK73BW3A2 ±200 10Ω - 5.6MΩ 1Ω - 5.6MΩ (2512) 2.0W –– 95°C 200V 400V ±400 — 6.2MΩ - 22MΩ 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 Performance Characteristics Requirement ∆ R (%+0.1Ω) Parameter Limit Typical Test Method Resistance Within specified tolerance — 25°C T.C.R. Within specified T.C.R. — +25°C/-55°C and +25°C/+125°C ±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) ±0.5%: 1F~W3A2 Resistance to Soldering Heat ±1%: 1F~W3A2 (10Ω≤R≤1MΩ) (10Ω≤R≤1MΩ); ±1%: 260°C ± 5°C, 10 seconds ± 1 second ±3%: 1F~W3A2 (R<10Ω, R>1MΩ) 1F~W3A2 (R<10Ω, R>1MΩ) ±1%: 1F ±0.5%: 1F Rapid Change of Temperature -55°C (30 minutes), +125°C (30 minutes), 100 cycles ±0.5%: Another ±0.3%: Another ±0.75%: 1J, 2A, 2B ±2%: 1J, 2A, 2B 40°C ± 2°C, 90%-95% RH, 1000 hours, 1.5 hr ON, Moisture Resistance ±1.5%: 1F ±3%: Another 0.5 hr OFF cycle ±1%: Another ±2%: 1J, 2A, 2B ±0.75%: 1J, 2A, 2B Endurance at 70°C 70°C ± 2°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle ±3%: Another ±1%: Another ±0.5%: 1F +125°C, 1000 hours: 1F; +155°C, 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. 2/04/19 16 KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com