resistors RK73G-RT flat chip resistor (ultra precision grade, anti sulfuration) EU NEW features • Excellent anti-sulfuration characteristic due to using high sulfuration-proof inner top electrode material • Metal-glaze thick film resistor for surface mounting • High precision resistor with T.C.R. ±50x10-6/K and tolerace ±0.5% • Suitable for both flow and reflow solderings • Marking: 1E: no marking on black protective coating 1J, 2A, 2B: white on dark 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 dimensions and construction L c 1E (0402) W Solder Plating 1J (0603) Ni Plating t Protective Coating d Type L (Inch Size Code) c 2A (0805) Resistive Inner Film Electrode Ceramic Substrate 2B (1206) Derating Curve +.004 -.002 +0.1 ) -0.05 .039 (1.0 Dimensions inches (mm) W c d .02±.002 .008±.004 (0.5±0.05) (0.2±0.1) +.002 -.004 (0.25 +0.05 -0.1 ) .01 t .014±.002 (0.35±0.05) .063±.008 .031±.004 .012±.004 .012±.004 .018±.004 (1.6±0.2) (0.8±0.1) (0.3±0.1) (0.3±0.1) (0.45±0.1) .079±.008 .049±.004 .016±.008 (2.0±0.2) (1.25±0.1) (0.4±0.2) .012 .126±.008 .063±.008 (3.2±0.2) (1.6±0.2) .016 .02±.012 (0.5±0.3) (0.3 (0.4 +.008 -.004 +0.2 ) -0.1 .02±.004 (0.5±0.1) +.008 -.004 +0.2 ) -0.1 .024±.004 (0.6±0.1) 100 % Rated Power 80 60 40 20 0 -60 -40 -55 For resistors operated at an ambient temperature of 70°C or above, a power rating shall be derated in accordance with the derating curve. -20 0 20 40 60 80 70 Ambient Temperature (°C) 100 120 140 155 ordering information New Part # RK73G 2A Type Size 1E: 0.063W 1J: 0.1W 2A: 0.125W 2B: 0.25W T Termination Material RT: Sn TD Packaging TPL: 0402 only: 2mm pitch punched paper TP: 0402, 0603: 7" 2mm pitch punched paper TD: 0603, 0805, 1206: 7" 4mm pitch punched paper TE: 0805, 1206: 7" plastic embossed For further information on packaging, please refer to Appendix A 1002 Nominal Resistance 4 digits Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 22 D Tolerance D: ±0.5% F: ±1% 12/04/14 KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com flat chip resistor (ultra precision grade, anti sulfuration) applications and ratings Power Rating @ 70°C Part Designation RK73G1E (0402) T.C.R. (X 10-6/K) Resistance Range E-24, E-96 (D±0.5%) E-24, E-96 (F±1%) Maximum Working Voltage Maximum Overload Voltage 50V 100V 75V 150V RK73G1J (0603) 1/16W (.063W) RK73G2B (1206) 1/8W (.125W) 150V 200V 1/4W (.25W) 200V 400V RK73G2A (0805) 1/10W (.10W) ±50 -55°C to +155°C 30Ω - 1MΩ 30Ω - 1MΩ Operating Temperature Range Rated ambient temperature: +70°C Rated voltage = √Power rating x resistance value or max. working voltage, whichever is lower environmental applications Performance Characteristics Parameter Resistance T.C.R. Requirement ∆ R ±(%+0.05Ω) Limit Typical Within specified — tolerance Within specified — T.C.R. Test Method 25°C +25°C/-55°C and +25°C/+125°C Overload (Short time) ±2% ±0.6% Rated Voltage x 2.5 for 5 seconds (2B: Rated Voltage x 2 for 5 seconds) Resistance to Solder Heat ±1% ±0.4% 260°C ± 5°C, 10 seconds ± 1 second ±0.5% ±0.3% -55°C (30 minutes), +125°C (30 minutes), 100 cycles ±2%: 1J, 2A, 2B ±3%: 1E ±2%: 1J, 2A, 2B ±3%: 1E ±0.6%: 1J, 2A, 2B; ±1%: 1E ±0.6%: 1J, 2A, 2B; ±1%: 1E High Temperature Exposure ±1% ±0.6% Sulfuration Test ±5% — Rapid Change of Temperature Moisture Resistance Endurance at 70°C 40°C ± 2°C, 90%-95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle 70°C ± 2°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle +155°C, 1000 hours Soaked in industrial oil with sulfur substance 3.5% contained 105°C ± 3°C, 500 hours For Surface Temperature Rise Graph see Environmental Applications. Additional environmental applications can also be found at www.koaspeer.com Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 11/06/14 KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com 23 resistors RK73G-RT