RK73-RT

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Technical content

flat chip resistors (anti-sulfuration)

features

Derating Curve% Rated Power 100 -60 -40 -20 0 40 60 80 100 140 Ambient Temperature (°C) -55 120 155 1H, 1E, 1J, 2A, 2B, 2E, W2H, W3A 125 Protective Coating Inner Electrode Resistive Film Ceramic Substrate Solder Plating Ni Plating L cc W t d dimensions and construction Type L .039 +.004 -.002 (1.0 +0.1 )-0.05 .01 +.002 -.004 (0.25 +0.05)-0.1 .012 +.008 -.004 (0.3 +0.2)-0.1 .016 +.008 -.004 (0.4 +0.2)-0.1 .014±.002 (0.35±0.05) .018±.004 (0.45±0.1) .012±.004 (0.3±0.1) .02±.004 (0.5±0.1) .024±.004 (0.6±0.1) .008±.004 (0.2±0.1) .012±.004 (0.3±0.1) .016±.008 (0.4±0.2) .02±.012 (0.5±0.3) .063±.008 (1.6±0.2) .102±.008 (2.6±0.2) .098±.008 (2.5±0.2) .122±.008 (3.1±0.2) .023±.006 (0.65±0.15) .126±.008 (3.2±0.2) .049±.004 (1.25±0.1) .031±.004 (0.8±0.1) .02±.002 (0.5±0.05) .063±.008 (1.6±0.2) .079±.008 (2.0±0.2) .197±.008 (5.0±0.2) .248±.008 (6.3±0.2) (0402) (0603) .009±.001 (0.23±0.03) .006±.002 (0.15±0.05) .004±.002 (0.1±0.05) .012±.001 (0.3±0.03) .024±.001 (0.6±0.03) (0201) .005±.001 (0.13±0.02) .004±.001 (0.11±0.03) .004±.001 (0.1±0.03) .008±.001 (0.2±0.02) .016±.001 (0.4±0.02) (01005) (0805) (1206) W2H (2010) W3A (2512) (Inch Size Code) Wcdt Dimensions inches (mm) (1210)

ordering information

D: ±0.5% F: ±1% G: ±2% J: ±5% RT: Sn Anti-Sulfur RK73B: 3 digits RK73H: 4 digits RK73Z: None W2H W3A RK73B RK73H RK73Z RK73H Type Power Rating Nominal Resistance Resistance Tolerance Termination Surface Material Packaging New Part # 2A TD 1002 FRT 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: Z1H: Green protective coating RK73B1F ~ W3A, RK73Z1J ~ W3A: Black protective coating RK73H1F ~ 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: 0201 (1H), 0402 (1E), 0603 (1J), TX: 01005 only: 4mm width - 1mm pitch plastic embossed TBL: 01005 only: 2mm pitch pressed paper TA: 0201 only: 1mm pitch pressed paper TC: 0201 only: 7" 2mm pitch pressed paper (TC: 10,000 pcs/reel, TCM: 15,000 pcs/reel) 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 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. NEW NEW 19KOA Speer Electronics, Inc.• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • 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. 11/07/14 resistors For resistors operated at a terminal part temperature of described for each size or above, a power rating shall be derated in accordance with the above derating curve. Please refer to “Introduction of the derating curve based on the terminal part temperature” on the beginning of our catalog before use.% Rated Power 100 -60 -40 -20 0 40 80 100 140 Ambient Temperature (°C) -55 120 155 1E/0.063W (75°C) 1J/0.1W (80°C) 2A/0.125W (85°C) 2E/0.5W (110°C) W2H/0.75W, W3A/1W (125°C) 12585 110

20 KOA Speer Electronics, Inc.• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • 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. 11/27/14 RK73-RT flat chip resistors (anti-sulfuration) Operating Temperature Range Rated Ambient Temperature Maximum Surge Current Part Designation Resistance Current Rating applications and ratings -55°C to +155°C+70°C W2H 10A2A 1A 2A 0.5A 1A 50mΩ max. 100mΩ max. Maximum Working Voltage Resistance Range D±0.5% E24, E96 F±1% E24, E96 G±2% E24 J±5% E24 W2H W3A ±100 ±200 ±100 ±200 ±100 ±200 ±100 ±200 ±100 Part Designation Maximum Overload Voltage Operating Temp. Range Rated Terminal Part Temp. Power Rating @ 70°C T.C.R. (ppm/°C) Max. 0.063W 0.1W 0.125W 0.25W 0.5W 0.33W 0.5W 0.33W 0.75W 110°C 100°C 110°C 100°C 125°C 50V 100V 25V 50V 150V 200V 200V 400V 85°C 100°C 80°C 75°C 100Ω - 1MΩ 100Ω - 1MΩ 100Ω - 1MΩ 1.02kΩ - 1MΩ 10Ω - 1MΩ 10Ω - 1MΩ 10Ω - 1MΩ 10Ω - 1MΩ 10Ω - 1MΩ 1.02MΩ - 10MΩ 100Ω - 1MΩ –– 10Ω - 10MΩ 10Ω - 10MΩ 10Ω - 10MΩ -55°C to +155°C -55°C to +125°C 1.02MΩ - 10MΩ 10Ω - 1kΩ 1.1kΩ - 1MΩ ±200 1.02MΩ - 10MΩ 10Ω - 1kΩ 10Ω - 10MΩ ±100 1.02kΩ - 1MΩ — 10Ω - 1MΩ ±200 1.02MΩ - 10MΩ ±100 — 10Ω - 10MΩ 10Ω - 10MΩ 1Ω - 10MΩ 1H ±300 ±200 0.05W 100Ω - 1MΩ 10Ω - 91Ω 1Ω - 10MΩ 1Ω - 10MΩ 1Ω - 1kΩ 1.1kΩ - 1MΩ 1Ω - 10MΩ 1Ω - 10MΩ 1Ω - 10MΩ 10Ω - 1MΩ ±200 1.02MΩ - 10MΩ 10Ω - 1MΩ 1.02MΩ - 10MΩ— 100Ω - 1kΩ RK73H RK73B W3A ±250 ±200 20V 30V 100kΩ - 1MΩ* 100kΩ - 1MΩ 100Ω - 91kΩ*100Ω - 91kΩ 100kΩ - 1MΩ 100Ω - 91kΩ1F 0 - +300 ±300 0.03W 10Ω - 91Ω*10Ω - 91Ω 1Ω - 9.1Ω 10Ω - 91Ω 1Ω - 9.1Ω NEW resistors * The nominal resistance value for RK73H1F (F:±1%) is E24 Rated ambient temperature: +70°C Rated voltage = √Power rating x resistance value or max. working voltage, whichever is lower RK73B/RK73H RK73Z NEW

Performance Characteristics Parameter RK73H, RK73B Requirement ∆ R ±(%+0.1Ω) Limit Typical Test Method Resistance T.C.R. 25°C +25°C/-55°C and +25°C/+125°C Within specified tolerance Within specified T.C.R. Overload (Short time) RK73B, RK73H Rated Voltage x 2.5 for 5 seconds (2B: Rated Voltage x 2 for 5 seconds) RK73Z: Max. overload current for 5 seconds ±2% ±1%: 1F ±0.8%: All others Resistance to Solder Heat 260°C ± 5°C, 10 seconds ± 1 second±1%:10Ω≤R≤1MΩ ±3%: R<10Ω, R>1MΩ ±1%: R<10Ω, R>1MΩ ±0.5%: All others Rapid Change of Temperature -55°C (30 minutes), +125°C (30 minutes), 100 cycles±1%: 1F ±0.5%: All others ±1%: 1F ±0.3%: All others Moisture Resistance 40°C ± 2°C, 90%-95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle ±2%: 1J, 2A, 2B ±3%: All others ±0.75%: 1J, 2A, 2B ±1.5%: 1F ±1%: All others Endurance at 70°C 70°C ± 2°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle±2%: 1J, 2A, 2B ±3%: All others ±0.75%: 1J, 2A, 2B ±1%: All others High Temperature Exposure +125°C, 1000 hours: 1F; +155°C, 1000 hours: RK73Z Requirement Limit Typical R ≤100mΩ: 1H R≤50mΩ: All others R≤90mΩ: 1H R≤40mΩ: All others R ≤100mΩ: 1H R≤50mΩ: All others R≤90mΩ: 1H R≤40mΩ: All others R ≤100mΩ: 1H R≤50mΩ: All others R≤90mΩ: 1H R≤40mΩ: All others Sulfuration Test Soaked in industrial oil with 3.5% sulfur concentration 105°C ± 3°C, 500 hours ±5% — R ≤150mΩ: 1H R ≤100mΩ: All others — R ≤100mΩ: 1H R≤50mΩ: All others R≤90mΩ: 1H R≤40mΩ: All others R ≤150mΩ: 1H R ≤100mΩ: All others R≤100mΩ: 1H R≤50mΩ: All others R ≤150mΩ: 1H R ≤100mΩ: All others R≤100mΩ: 1H R≤50mΩ: All others R ≤150mΩ: 1H R ≤100mΩ: All others R≤100mΩ: 1H R≤50mΩ: All others environmental applications RK73-RT flat chip resistors (anti-sulfuration) 21KOA Speer Electronics, Inc.• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • 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. 11/27/14 resistors