RN73R metal film flat chip resistors (high reliability) features * SMD metal film resistors * High precision type 0.05 is also available as standard * High performance T.C.R. 5x10- 6/K is also available as standard * Low current noise * Improved moisture resistance by high humidity protective coating * Suitable for control circuits in various industrial equipment * Suitable for both flow and reflow solderings * Products meet EU-RoHS requirements dimensions and construction Type L c c W L 1E (0402) .039 +.004 -.002 +0.1) (1.0-0.05 1J (0603) .063.008 .031.004 .012.004 .012.004 .018.004 (1.60.2) (0.80.1) (0.30.1) (0.30.1) (0.450.1) 2A (0805) .079.008 .049.008 .016.008 (2.00.2) (1.250.2) (0.40.2) 2B (1206) .126.008 .063.008 (3.20.2) (1.60.2) Ni Plating d Protective Coating Dimensions inches (mm) W c d (Inch Size Code) Solder Plating t Resistive Inner Electrode Film Ceramic Substrate .020.002 .010.004 .010 (0.50.05) (0.250.1) (0.25 .02.012 (0.50.3) t +.002 -.004 +0.05) -0.1 .012 +.008 -.004 (0.3 +0.2 -0.1 ) .012 +.008 -.004 (0.3 +0.2 -0.1 ) .014.002 (0.350.05) .02.004 (0.50.1) .024.004 (0.60.1) Derating Curve 100 80 80 % Rated Power 100 % Rated Power resistors EU NEW 60 40 1E (90C) 1J (95C) 2A (100C) 2B (110C) 60 40 20 20 0 -60 -40 -55 -20 0 20 40 60 80 100 120 85 Ambient Temperature (C) 140 0 -60 -40 -55 160 155 For resistors operated at an ambient temperature of 85C or above, a power rating shall be derated in accordance with the above derating curve. -20 0 100 120 20 40 60 80 90 95 110 Terminal Part Temperature (C) 140 160 155 For resistors operated at a terminal part temperature of described for each size or above, a power rating shall be derated in accordance with derating curve. Please refer to "Introduction of the derating curves based on the terminal part temperature" in the beginning of our catalog before use. ordering information RN73R 2B Type Size 1E: 0.063W 1J: 0.1W 2A: 0.125W 2B: 0.25W T Termination Material T: Sn TD Packaging TP: 2mm pitch punched paper TD: 4mm pitch punched paper TE: 4mm pitch plastic embossed For further information on packaging, please refer to Appendix A 1002 Nominal Resistance 3 significant figures + 1 multiplier "R" indicates decimal on value <100 B 25 Resistance Tolerance A: 0.05% B: 0.1% C: 0.25% D: 0.5% F: 1.0% T.C.R. (ppm/C) 05 10 25 50 100 Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 3/27/19 KOA Speer Electronics, Inc. * 199 Bolivar Drive * Bradford, PA 16701 * USA * 814-362-5536 * Fax: 814-362-8883 * www.koaspeer.com RN73R applications and ratings Rated Power Rated Terminal T.C.R. Part Rating Ambient (x10-6/K) Part Designation @ 85C Temp. Temp. 10 1/16W 25 85C 90C RN73R1E (.063W) 50 5 10 1/10W RN73R1J 85C 95C 25 (.10W) 50 100 5 RN73R2A 1/8W (.125W) 85C 100C RN73R2B 1/4W (.25W) 85C 110C 10 25 50 100 5 10 25 50 100 Resistance Range () E-24, E-96, E-192 (A0.05%) (B0.1%) (C0.25%) (D0.5%) (F1.0%) -- -- -- 100 - 59k 47 - 59k 47 - 59k -- -- 47 - 10k 47 - 300k 47 - 300k 100 - 59k 47 - 59k 15 - 1M 15 - 1M -- 100 - 100k 47 - 100k 15 - 1.5M 15 - 1.5M -- 100 - 110k 47 - 110k 15 - 1M 15 - 1M -- 47 - 10k 47 - 300k 47 - 300k -- 47 - 59k 15 - 1M 15 - 1M -- -- 47 - 10k 47 - 300k 10 - 300k -- 47 - 59k 10 - 1M 10 - 1M 10 - 1M -- 47 - 10k 47 - 300k 10 - 300k -- 47 - 59k 10 - 1M 10 - 1M 10 - 1M -- 47 - 100k 15 - 1.5M 15 - 1.5M -- -- 47 - 110k 15 - 1M 15 - 1M -- 47 - 100k 10 - 1.5M 10 - 1.5M 10 - 1.5M -- 47 - 110k 10 - 1M 10 - 1M 10 - 1M 47 - 100k 10 - 1.5M 10 - 1.5M 10 - 1.5M -- 47 - 110k 10 - 1M 10 - 1M 10 - 1M 100 - 100k 47 - 100k 47 - 100k -- -- 100 - 110k 47 - 110k 47 - 110k -- -- Maximum Working Voltage Maximum Overload Voltage 50V 100V 75V 150V 150V 300V 200V 400V Operating Temperature: -55C to +155C Rated voltage = Power rating x resistance value or max. working voltage, whichever is lower environmental applications Performance Characteristics Parameter Resistance T.C.R. Overload (Short time) Resistance to Solder Heat Requirement R (%+0.05) Limit Typical Within specified tolerance -- Within specified T.C.R. -- 0.05% 0.01% 0.05%* 0.01% Rapid Change of Temperature 0.1%* 0.04% Moisture Resistance Endurance at 85C High Temperature Exposure 0.25% 0.1% 0.25% 0.07% 0.04% 0.10% Test Method 25C +25C/+125C: T.C.R. 5 (x10-6/K); +25C/-55C and +25C/+155C: another Rated Voltage x 2.5 or Max. overload voltage, whichever is less for 5 seconds 260C 5C, 10 seconds 1 second 1E, 1J, 2A: -55C (30 minutes), +155C (30 minutes), 1000 cycles 2B: -55C (30 minutes), +155C (30 minutes), 500 cycles 85C 2C, 85%5%RH, 1000 hours; 1.5 hr ON, 0.5 hr OFF cycle 85C 2C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle +155C, 1000 hours * Depends on resistance value, please contact KOA Speer for details. Precautions for Use * The properly and electrostatically measured taping materials are used for the components, but attention should be paid to the fact that there is some danger the parts absorb on the top tapes to cause a failure in the mounting and the parts are destructed by static electricity (1J, 2A, 2B: 1kV and more, 1E: 0.5kV and more at Human Body Model 100pF, 1.5k) to change the resistance in the conditions of an excessive dryness or after the parts are given vibration for a long time as they are packaged on the tapes. Similarly, care should be given not to apply the excessive static electricity when mounting on the boards. Ionic impurities such as flux etc. that are attached to these products or those mounted onto a PCB, negatively affect their moisture resistance, corrosion resistance, etc. The flux may contain ionic substances like chlorine, acid, etc. while perspiration and saliva include ionic impurities like sodium (Na), chlorine (Cl-) etc. Therefore these kinds of ionic substances may induce electrical corrosion when they invade into the products. Either thorough washing or using RMA solder and flux are necessary since lead free solder contains ionic substances. Washing process is needed, before putting on moisture proof material in order to prevent electrical corrosion. When heat-resistant masking tapes are attached to the chip resistors at the time of mounting and then detached, there is a possibility of exfoliation of the top electrodes. It is known that the heat applied in the mounting process will enhance the adhesion strength of the tape adhesive so please avoid the use. If the use of masking tapes are unavoidable, then please be sure not to attach the tape adhesives directly on the products. When high-pressure shower cleaning is implemented, there is a possibility of exfoliation of the top electrodes caused by the water pressure stress so please avoid the implementation. If the implementation is unavoidable, then please evaluate the products beforehand. 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. 10/23/18 KOA Speer Electronics, Inc. * 199 Bolivar Drive * Bradford, PA 16701 * USA * 814-362-5536 * Fax: 814-362-8883 * www.koaspeer.com resistors metal film flat chip resistors (high reliability)