thermal protection PT72 ptc chip thermistor (for over-temperature protection) EU features Reduced size, light weight and small mounting area Quick thermal response Curie temperature: 70C, 80C, 100C Marking: Black coating for 70C Curie temperature Brown coating for 80C Curie temperature Blue coating for 100C Curie temperature Products with lead-free terminations meet EU RoHS and China RoHS requirements dimensions and construction Type Dimensions inches (mm) L (Inch Size Code) L Wt d 2A .079.008 .049.008 .016.008 W (0805) (2.00.2) (1.250.2) (0.40.2) .039.008 (1.00.2) 2B .126.008 .063.008 .02.012 (1206) (3.20.2) (1.60.2) (0.50.3) Solder t Plating Ni Protective Inner d Plating Coating Electrode Resistive Body ordering information New Part PT72 2A T 70C TE 471 Termination Curie Nominal Type Size Code Packaging Material Temperature Resistance 2A: 0805 T: Sn 70C TE: 7 embossed plastic 2 significant (3,000 pieces/reel) figures + 1 2B: 1206 (Other termination 80C multiplier styles available, 100C contact factory for options) 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. 11/16/15 206 KOA Speer Electronics, Inc. 199 Bolivar Drive Bradford, PA 16701 USA 814-362-5536 Fax: 814-362-8883 www.koaspeer.com PT72 ptc chip thermistor (for over-temperature protection) typical circuit schematic +Vcc R1 RL PT72 R2 RE applications and ratings Absolute Nominal Operating Part Curie Resistance Temperature Maximum Resistance Temperature Designation Temperature Tolerance R25 x 7 Working () Range Voltage 70C 85C 10C PT722A 80C 470 95C 10C 100C 115C 10C 50% 16V -55C to +125C 70C 120, 470, 1k 85C 10C PT722B 80C 50, 470, 1k 95C 10C 100C 470, 1k 115C 10C environmental applications Temperature Characteristics CT 70C CT 80C CT 100C 1000 100 10 1 0.1 -20 020840 60 0 100 120140 160 Temperature (C) Performance Characteristics Requirement R % Parameter Limit Typical Test Method Resistance to Solder Heat 20.0% 4.0% 260C 5C, 10 seconds 1 second Rapid Change of Temperature 20.0% 4.0% -55C (30 minutes), +125C (30 minutes), 5 cycles Resistance 50.0% 35.0% 25C Humidity Resistance 20.0% 4.0% 40C 2C, 90 - 95% RH, 1000 hours Load Life 20.0% 4.0% 25C 2C, 1000 hours, DC16 voltage load Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 12/02/11 KOA Speer Electronics, Inc. 199 Bolivar Drive Bradford, PA 16701 USA 814-362-5536 Fax: 814-362-8883 www.koaspeer.com 207 Resistance (k ) thermal protection