resistors RK73-RT flat chip resistors (anti-sulfuration) features EU * Excellent anti-sulfuration characteristic due to using high sulfuration-proof inner top electrode material * 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 * Marking: Z1E: Green protective coating RK73B1E ~ W3A, RK73Z1J ~ W3A: Black protective coating RK73H1E ~ W3A: Blue protective coating * 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. dimensions and construction L c Type c L (Inch Size Code) W Solder Plating Ni Plating t Protective Coating d Resistive Inner Electrode Film Ceramic Substrate Derating Curve 100 % Rated Power 80 60 40 20 0 -60 -40 -55 -20 0 20 40 60 80 70 Ambient Temperature (C) 100 120 +.004 -.002 +0.1 ) -0.05 Dimensions inches (mm) W c d +.002 -.004 (0.25 +0.05 -0.1 ) t 1E (0402) .039 1J (0603) .063.008 .031.004 .012.004 .012.004 .018.004 (1.60.2) (0.80.1) (0.30.1) (0.450.1) (0.30.1) 2A (0805) .079.008 .049.004 .016.008 (2.00.2) (1.250.1) (0.40.2) 2B (1206) 2E (1210) .063.008 .126.008 (1.60.2) (3.20.2) .102.008 (2.60.2) W2H (2010) .197.008 .098.008 (5.00.2) (2.50.2) W3A (2512) .248.008 .122.008 (6.30.2) (3.10.2) (1.0 .02.002 .008.004 (0.50.05) (0.20.1) .01 .012 (0.3 .016 (0.4 .02.012 (0.50.3) +.008 -.004 +0.2 ) -0.1 +.008 -.004 +0.2 ) -0.1 .014.002 (0.350.05) .02.004 (0.50.1) .024.004 (0.60.1) .023.006 (0.650.15) 140 155 ordering information New Part # RK73H 1002 F Nominal Resistance RK73B: 3 digits RK73H: 4 digits RK73Z: None Resistance Tolerance D: 0.5% F: 1% G: 2% J: 5% Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 12/22/10 Type RK73B RK73H RK73Z 14 2A RT Power Rating 1E 1J 2A 2B 2E W2H W3A Termination Surface Material RT: Sn Anti-Sulfur TD Packaging TPL: 0402 only: 2mm pitch punch paper TP: 0402, 0603, 0805: 7" 2mm pitch punch paper TD: 0603, 0805, 1206, 1210:7" 4mm pitch punched paper TDD: 0603, 0805, 1206, 1210: 10" paper tape TE: 0805, 1206, 1210, 2010 & 2512: 7" embossed plastic TED: 0805, 1206, 1210, 2010 & 2512: 10" embossed plastic For further information on packaging, please refer to Appendix A KOA Speer Electronics, Inc. * 199 Bolivar Drive * Bradford, PA 16701 * USA * 814-362-5536 * Fax: 814-362-8883 * www.koaspeer.com flat chip resistors (anti-sulfuration) applications and ratings Part Designation Power T.C.R. Rating (ppm/C) Max. @ 70C RK73B1E RK73H1E 0.063W RK73B1J RK73H1J 0.1W RK73B2A RK73H2A 0.125W RK73B2B RK73H2B 0.25W RK73B2E RK73H2E 0.5W 0.33W 0.5W 0.33W RK73BW2H RK73HW2H 0.75W RK73BW3A RK73HW3A 1W Part Designation* RK73Z1E RK73Z1J RK73Z2A RK73Z2B RK73Z2E RK73ZW2H 200 100 200 100 200 100 200 100 200 100 200 100 200 100 Resistance Range RK73H RK73B E24, E96 E24, E96 E24 E24 (D0.5%) (F1%) (G2%) (J5%) -- 1.02M - 10M 10 - 10M 1 - 10M -- -- 100 - 1M 10 - 1M -- 1.02M - 10M 10 - 10M 1 - 10M 100 - 1M 10 - 1M -- -- 1.02M - 10M 10 - 10M 1 - 10M -- 100 - 1M 10 - 1M -- -- Maximum Working Voltage Maximum Overload Voltage 50V 100V 150V 200V -- 1.02M - 10M 10 - 10M 1 - 10M 100 - 1M 10 - 1M -- -- 1 - 1k 10 - 1k -- -- 1.1k - 1M 1.1k - 1M 100 - 1k 10 - 1k -- -- 1.02k - 1M 1.02k - 1M 1.02M - 10M 10 - 10M 1 - 10M -- 10 - 1M 10 - 1M -- -- -- 1.02M - 10M 10 - 10M 1 - 10M 10 - 1M 10 - 1M -- -- Resistance Current Rating Maximum Surge Current 1A 2A 200V Rated Ambient Temp. Operating Temp. Range +70C -55C to +155C 400V Rated Ambient Temperature Operating Temperature Range +70C -55C to +155C 5A 50m max. 2A 10A RK73ZW3A environmental applications Performance Characteristics Parameter Resistance T.C.R. Overload (Short time) Resistance to Solder Heat Rapid Change of Temperature Moisture Resistance Endurance at 70C High Temperature Exposure Sulfuration Test RK73H, RK73B Requirement R (%+0.1) Limit Typical Within specified -- tolerance Within specified -- T.C.R. 2% 0.8% 1%:10R1M; 1%: R<10, 3%: R<10, R>1M; 0.5%: R>1M All others RK73Z Requirement Limit Typical Test Method R50m R40m N/A N/A R50m R40m RK73B, RK73H Rated Voltage x 2.5 for 5 seconds (2B: Rated Voltage x 2 for 5 seconds) RK73Z: Max. surge current for 5 seconds R50m R40m 260C 5C, 10 seconds 1 second R50m R40m -55C (30 minutes), +125C (30 minutes), 100 cycles 25C +25C/-55C and +25C/+125C 0.5% 0.3% 2%: 1J, 2A, 2B 3%: All others 2%: 1J, 2A, 2B 3%: All others 0.75%: 1J, 2A, 2B; 1%: All others 0.75%: 1J, 2A, 2B; 1%: All others R100m R50m 40C 2C, 90%-95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle R100m R50m 70C 2C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle 1% 0.5% R50m R40m +155C, 1000 hours -- 0.5% -- R40m H2S 1000 ppm, 25C, 90%Rh, 720 hours Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 1/19/11 KOA Speer Electronics, Inc. * 199 Bolivar Drive * Bradford, PA 16701 * USA * 814-362-5536 * Fax: 814-362-8883 * www.koaspeer.com 15 resistors RK73-RT