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| PT72 positive tempco thermistor 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 * * * * circuit protection dimensions and construction L W Solder Plating d Protective Coating Resistive Body Inner Electrode Ni Plating Type (Inch Size Code) L .079.008 (2.00.2) .126.008 (3.20.2) Dimensions inches (mm) W t .049.008 (1.250.2) .063.008 (1.60.2) .039.008 (1.00.2) d .016.008 (0.40.2) .02.012 (0.50.3) 2A (0805) 2B (1206) t ordering information New Part # PT72 Type 2A Size Code 2A: 0805 2B: 1206 T Termination Material T: Sn (Other termination styles available, contact factory for options) 70C Curie Temperature 70C 80C 100C TE Packaging TE: 7" embossed plastic (3,000 pieces/reel) 471 Nominal Resistance 2 significant figures + 1 multiplier 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. 2/12/08 156 KOA Speer Electronics, Inc. * 199 Bolivar Drive * Bradford, PA 16701 * USA * 814-362-5536 * Fax: 814-362-8883 * www.koaspeer.com PT72 positive tempco thermistor typical circuit schematic PT72 R2 circuit protection R1 applications and ratings Part Designation Curie Temperature 70C PT722A 80C 100C 70C PT722B 80C 100C 120, 470, 1k 50, 470, 1k 470, 1k 50% 470 Resistance @ 25C Resistance Tolerance Temperature @ R25 x 7 85C 10C 95C 10C 115C 10C 85C 10C 95C 10C 115C 10C 16V -55C to +125C Absolute Maximum Working Voltage Operating Temperature Range environmental applications Temperature Characteristics 1000 CT 70C CT 80C CT 100C Resistance (k) 100 10 1 0.1 -20 0 20 40 60 80 100 Temperature (C) 120 140 160 Performance Characteristics Parameter Resistance to Solder Heat Rapid Change of Temperature Resistance Humidity Resistance Load Life Requirement Limit 20.0% 20.0% 50.0% 20.0% 20.0% R Typical 4.0% 4.0% 35.0% 4.0% 4.0% Test Method 260C 5C, 10 seconds 1 second -55C (30 minutes), +125C (30 minutes), 5 cycles 25C 40C 2C, 90 - 95% RH, 1000 hours 25C 2C, 1000 hours, rated voltage 11/20/08 Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. KOA Speer Electronics, Inc. * 199 Bolivar Drive * Bradford, PA 16701 * USA * 814-362-5536 * Fax: 814-362-8883 * www.koaspeer.com 157 |
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