LP73 thin film resistance thermal chip sensor EU features thermal protection • Thin film thermal sensors of SMD type • Resistance tolerance ±1%, a wide range of TCRs +3000x10-6/K~+5000x10-6/K with the standard products • Suitable for control of temperatures in various industrial equipment • Suitable for both flow and reflow soldering • Marking: Black body color • Products with lead-free terminations meet EU RoHS and China RoHS requirements dimensions and construction L c Type c W Solder Plating Ni Plating t d Protective Coating L (Inch Size Code) Dimensions inches (mm) W c d t 1J (0603) .063±.008 .031±.008 .012±.008 .012±.008 (1.6±0.2) (0.8±0.2) (0.3±0.2) (0.3±0.2) 2A (0805) .079±.008 .049±.008 .016±.008 .016±.008 .02±.006 (2.0±0.2) (1.25±0.2) (0.4±0.2) (0.4±0.2) (0.5±0.15) 2B (1206) .126±.008 .063±.008 (3.2±0.2) (1.6±0.2) .02±.012 (0.5±0.3) .02±.012 (0.5±0.3) .02±.004 (0.5±0.1) .02±.006 (0.5±0.15) Resistive Inner Electrode Film Ceramic Substrate ordering information New Part # LP73 2B T Product Code Size Code 1J: 0603 2A: 0805 2B: 1206 Termination Material T: Sn TE Packaging TE: 4mm embossed pitch plastic (5,000 pieces/reel) 103 Resistance Value 2 significant figures + 1 multiplier 3 digits J 3600 Tolerance T.C.R. F: ±1% G: ±2% J: ±5% applications and ratings Thermal Thermal Time Dissipation Constant Constant (sec.)* (mW/°C)* Part Designation Power Rating LP731J 0.016W 2 1.2 LP732A 0.031W 4 1.8 LP732B 0.063W 6.5 2.4 Rated Ambient Temp. Operating Temp. Range +70°C -55°C to +125°C * Thermal Time Constant and Dissipation Constant are reference values, which are values of elements and vary with connecting or fixing methods. For further information on packaging, please refer to Appendix A. Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 182 1/30/11 KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com LP73 thin film resistance thermal chip sensor T.C.R. (ppm/°C) Max. Resistance Range E-24 T.C.R. Tolerance 1J 3000 3300 Resistance Tolerance 2A 2B F: ±1%, G: ±2% J: ±5% 100Ω-1kΩ 3600 G: ±2%, J: ±5% 100Ω-300Ω 330Ω-1kΩ ±5% 4000 4500 5000 100Ω - 2kΩ 100Ω - 10kΩ F: ±1% G: ±2% J: ±5% 100Ω - 1kΩ environmental applications Derating Curve Temperature Characteristics Resistance Changing Rate ( %) 100 % Rated Power 80 60 40 20 0 -60 -40 -55 -20 0 20 40 60 80 70 Ambient Temperature (°C) 100 120 140 125 60 50 40 30 20 10 0 -10 -20 -30 -40 -75 5000ppm/°C T.C.R. 4500ppm/°C (X10-6/K) 4000ppm/°C 3600ppm/°C 3300ppm/°C 3000ppm/°C -50 -25 0 25 50 75 100 125 Ambient Temperature (°C) Approximate Expression for Resistance-Temperature Characteristics T.C.R. (x10-6/K) C0 C1 C2 3000 3300 3600 4000 4500 5000 0.931258 0.924355 0.916356 0.907039 0.897412 0.886014 0.00265213 0.00292569 0.00323714 0.00361006 0.00395222 0.00437224 3.90112 x 10-6 4.00516 x 10-6 4.34428 x 10-6 4.33457 x 10-6 6.05201 x 10-6 7.48809 x 10-6 (Values are not guaranteed but typical) RT=R25 (C0+C1T+C2T2) RT: Resistance value at T°C R25: Resistance value at 25°C T: Ambient temperature (°C) C0, C1, C2: Constants Performance Characteristics Parameter Resistance Requirement ∆ R ±(%+0.05Ω) Limit Typical Test Method 25°C Within regulated tolerance –– Within specified T.C.R. –– Overload Resistance to Solder Heat Rapid Change of Temperature ±0.5% ±0.5% ±0.5% ±0.3% ±0.3% ±0.3% Rated voltage x 2.5 for 5 seconds 260°C ± 5°C, 10 seconds ± 1 second -55°C (30 minutes),+25°C (2-3 minutes), +125°C (30 minutes), +25°C (2-3 minutes), 5 cycles Moisture Resistance Endurance at 70°C ±2.0% ±2.0% ±1.5% ±1.5% 40°C ± 2°C, 90 - 95% RH, 1000 hours, 1.5 hours ON, 0.5 hours OFF cycle 70°C ± 2°C, 1000 hours, 1.5 hours ON, 0.5 hours OFF cycle T.C.R. +25°C/+65°C Confirming resistance drift is recommended since this product has a tendency to have bigger resistance change than general flat chip over 70°C. Please pay attention not to be applied ESD, it may cause of resistance change. Actual Value (Out of Guarantee) Test Items High Temperature Exposure ESD Reference ±8.0% 500V Test Method 125°C, 1000 hours Human model, 100 pF 1.5 kΩ Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 6/25/12 KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com 183 thermal protection applications and ratings (continued)