LT linear positive miniature tempco thermistor EU features thermal protection * * * * High stability and excellent linearity Miniature size Marking: Light-gray body color with color-coded bands Products with lead-free terminations meet EU RoHS requirements dimensions and construction L D Trimming Line l Ceramic Core d Marking Resistive Film End Cap Dimensions inches (mm) C (max.) D d Type L (ref.) LT1/6 .126.012 (3.20.3) .146 (3.7) LT1/4 .248.008 (6.30.5) .280 (7.1) l .067.008 .018.002 (1.70.2) (0.450.05) 1.18.118 .091.012 .024.002 (30.03.0) (2.30.3) (0.60.05) Lead Wire Insulation Coating C ordering information New Part # LT Type 1/6 C T26 Power Rating 1/4 1/6 Termination Material C: SnCu Taping and Forming T26, T52 A Packaging A: Ammo R: Reel 102 J Nominal Resistance 2 significant figures + 1 multiplier "R" indicates decimal on value <10 3600 Tolerance J: 5% T.C.R. (ppm/C) 1000 4,500 applications and ratings T.C.R. (ppm/C)* 1000 1200 1400 2000 3600 3900 4200 4500 T.C.R. Tolerance Resistance Range E-24 (LT1/6S) Resistance Range E-24 (LT1/4S) 15% 100 - 20K 100 - 39K 10% 100 - 9.1K 100 - 5.1K 100 - 3.3K 100 - 750 100 - 240 100 - 15K 100 - 6.8K 100 - 6.2K 100 - 1K 100 - 510 Resistance Tolerance Rated Ambient Temperature Operating Temperature Range J: 5% +70C -40C to +125C * T.C.R. measuring temperature: +25C to +75C For further information on packaging, please refer to Appendix C. Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 188 12/29/08 KOA Speer Electronics, Inc. * 199 Bolivar Drive * Bradford, PA 16701 * USA * 814-362-5536 * Fax: 814-362-8883 * www.koaspeer.com LT linear positive miniature tempco thermistor environmental applications Resistance Changing Rate (%) 100 % Rated Power 80 60 40 20 0 -40 -20 0 20 40 60 80 70 Ambient Temperature (C) TCR (X10-6/K) 4500 50 40 3600 30 20 2000 10 1000 0 -10 -20 -30 -75 100 120 140 125 thermal protection Temperature Characteristics of Resistance Derating Curve -50 -25 0 50 25 75 100 125 Ambient Temperature (C) Approximate Expression for Resistance-Temperature Characteristics T.C.R. (x10-6/K) C0 C1 3600 3900 4200 4500 0.9175 0.9099 0.9026 0.8948 0.0032 0.0035 0.0038 0.0041 C2 4.0000 4.0064 3.9964 4.0064 x x x x 10-6 10-6 10-6 10-6 (Values are not guaranteed but typical) RT=R25 (C0+C1T+C2T2) RT: Resistance value at TC R25: Resistance value at 25C T: Ambient temperature (C) C0, C1, C2: Constants Performance Characteristics Parameter Resistance Overload (Short time) Resistance to Solder Heat Rapid Change of Temperature Moisture Resistance Endurance at 70C Requirement R (% + 0.05) Limit Typical Within specified -- tolerance 1% 0.75% 1% 0.75% 1% 0.75% 3% 2% 3% 2% Test Method 25C Rated voltage x 2.5 for 5 seconds 260C 5C, 10 seconds 1 second -40C (30 minutes), +125C (30 minutes), 5 cycles 40C 2C, 90 - 95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle 70C 2C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 12/29/08 KOA Speer Electronics, Inc. * 199 Bolivar Drive * Bradford, PA 16701 * USA * 814-362-5536 * Fax: 814-362-8883 * www.koaspeer.com 189