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. • AEC-Q200 Qualified: 0402 (1E), 0603 (1J), 0805 (2A), 1206 (2B), 1210 (2E), 2010 (W2H), 2512 (W3A) 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 (1.6±0.2) (0.8±0.1) (0.3±0.1) (0.45±0.1) (0.3±0.1) 2A (0805) .079±.008 .049±.004 .016±.008 (2.0±0.2) (1.25±0.1) (0.4±0.2) 2B (1206) 2E (1210) .063±.008 .126±.008 (1.6±0.2) (3.2±0.2) .102±.008 (2.6±0.2) W2H (2010) .197±.008 .098±.008 (5.0±0.2) (2.5±0.2) W3A (2512) .248±.008 .122±.008 (6.3±0.2) (3.1±0.2) (1.0 .02±.002 .008±.004 (0.5±0.05) (0.2±0.1) .01 .012 (0.3 .016 (0.4 .02±.012 (0.5±0.3) +.008 -.004 +0.2 ) -0.1 +.008 -.004 +0.2 ) -0.1 .014±.002 (0.35±0.05) .02±.004 (0.5±0.1) .024±.004 (0.6±0.1) .023±.006 (0.65±0.15) 140 155 For resistors operated at an ambient temperature of 70°C or above, a power rating shall be derated in accordance with the above derating curve. 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. 12/04/12 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. @ 70°C 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 (D±0.5%) (F±1%) (G±2%) (J±5%) –– 1.02MΩ - 10MΩ 10Ω - 10MΩ 1Ω - 10MΩ — — 100Ω - 1MΩ 10Ω - 1MΩ –– 1.02MΩ - 10MΩ 10Ω - 10MΩ 1Ω - 10MΩ 100Ω - 1MΩ 10Ω - 1MΩ — — 1.02MΩ - 10MΩ 10Ω - 10MΩ 1Ω - 10MΩ — 100Ω - 1MΩ 10Ω - 1MΩ — — Maximum Working Voltage Maximum Overload Voltage 50V 100V 150V 200V — 1.02MΩ - 10MΩ 10Ω - 10MΩ 1Ω - 10MΩ 100Ω - 1MΩ 10Ω - 1MΩ — — 1Ω - 1kΩ 10Ω - 1kΩ — — 1.1kΩ - 1MΩ 1.1kΩ - 1MΩ 100Ω - 1kΩ 10Ω - 1kΩ — — 1.02kΩ - 1MΩ 1.02kΩ - 1MΩ 1.02MΩ - 10MΩ 10Ω - 10MΩ 1Ω - 10MΩ — 10Ω - 1MΩ 10Ω - 1MΩ — — — 1.02MΩ - 10MΩ 10Ω - 10MΩ 1Ω - 10MΩ 10Ω - 1MΩ 10Ω - 1MΩ — — Resistance Current Rating Maximum Surge Current 1A 2A 200V Rated Ambient Temp. Operating Temp. Range +70°C -55°C to +155°C 400V Rated Ambient Temperature Operating Temperature Range +70°C -55°C to +155°C 5A 50mΩ 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 70°C High Temperature Exposure Sulfuration Test RK73H, RK73B Requirement ∆ R ±(%+0.1Ω) Limit Typical Within specified — tolerance Within specified — T.C.R. ±2% ±0.8% ±1%:10Ω≤R≤1MΩ; ±1%: R<10Ω, ±3%: R<10Ω, R>1MΩ; ±0.5%: R>1MΩ All others RK73Z Requirement Limit Typical Test Method R≤50mΩ R≤40mΩ N/A N/A R≤50mΩ R≤40mΩ 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 R≤50mΩ R≤40mΩ 260°C ± 5°C, 10 seconds ± 1 second R≤50mΩ R≤40mΩ -55°C (30 minutes), +125°C (30 minutes), 100 cycles 25°C +25°C/-55°C and +25°C/+125°C ±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 R≤100mΩ R≤50mΩ 40°C ± 2°C, 90%-95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle R≤100mΩ R≤50mΩ 70°C ± 2°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle ±1% ±0.5% R≤50mΩ R≤40mΩ +155°C, 1000 hours — ±0.5% — R≤40mΩ H2S 1000 ppm, 25°C, 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