B57703M0502G040

NTC thermistors for temperature measurement Probe assemblies Series/Type: Date: B57703M February 2009 © EPCOS AG 2009. Reproduction, publication and dissemination of this publication, enclosures hereto and the information contained therein without EPCOS' prior express consent is prohibited. Temperature measurement Probe assemblies B57703M M703 Applications Surface temperature measurement, e.g. on housings and heat sinks Features High accuracy Easy mounting Good thermal coupling through metal tag Thermistor encapsulated in metal-tag case PTFE-insulated leads of silver-plated nickel wire, AWG 30 UL approval (E69802) Options Alternative resistance ratings, rated temperatures, resistance tolerances, lead lengths and AWG 26 or AWG 28 stranded wires available on request. Delivery mode Bulk General technical data Climatic category Max. power Resistance tolerance Rated temperature Dissipation factor Thermal cooling time constant Heat capacity Test voltage (IEC 60068-1) (at 25 °C) Dimensional drawing Dimensions in mm Approx. weight 0.8 g (in air) (in air) (t = 1 s) P25 ∆RR/RR TR δth1) τc1) Cth1) Vtest 55/125/56 150 ±2 25 approx. 3 approx. 50 approx. 150 1000 mW % °C mW/K s mJ/K V AC Electrical specification and ordering codes R25 Ω 5k 10 k 30 k No. of R/T characteristic 8016 8016 8018 B25/100 K 3988 ±1% 3988 ±1% 3964 ±1% Ordering code B57703M0502G040 B57703M0103G040 B57703M0303G040 1) Depends on mounting situation. Please read Cautions and warnings and Important notes at the end of this document. Page 2 of 10 Temperature measurement Probe assemblies B57703M M703 Reliability data Test Storage in dry heat Standard IEC 60068-2-2 Test conditions ∆R25/R25 (typical) < 1% Remarks No visible damage Storage in damp heat, steady state Rapid temperature cycling Endurance Long-term stability (empirical value) Storage at upper category temperature T: 125 °C t: 1000 h IEC Temperature of air: 40 °C 60068-2-78 Relative humidity of air: 93% Duration: 56 days IEC Lower test temperature: 55 °C 60068-2-14 Upper test temperature: 125 °C Number of cycles: 10 Pmax: 150 mW t: 1000 h Temperature: 70 °C t: 10000 h < 1% No visible damage No visible damage No visible damage No visible damage < 0.5% < 1% < 2% Please read Cautions and warnings and Important notes at the end of this document. Page 3 of 10 Temperature measurement Probe assemblies B57703M M703 R/T characteristics R/T No. T (°C) 55.0 50.0 45.0 40.0 35.0 30.0 25.0 20.0 15.0 10.0 5.0 0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 45.0 50.0 55.0 60.0 65.0 70.0 75.0 80.0 85.0 90.0 95.0 100.0 105.0 110.0 115.0 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 8016 8018 B25/100 = 3988 K B25/100 = 3964 K RT/R25 α (%/K) RT/R25 α (%/K) 96.3 67.01 47.17 33.65 24.26 17.7 13.04 9.707 7.293 5.533 4.232 3.265 2.539 1.99 1.571 1.249 1.0000 0.8057 0.6531 0.5327 0.4369 0.3603 0.2986 0.2488 0.2083 0.1752 0.1481 0.1258 0.1072 0.09177 0.07885 0.068 0.05886 0.05112 0.04454 0.03893 0.03417 0.03009 0.02654 0.02348 0.02083 0.01853 0.01653 7.4 7.2 6.9 6.7 6.4 6.2 6.0 5.8 5.6 5.5 5.3 5.1 5.0 4.8 4.7 4.5 4.4 4.3 4.1 4.0 3.9 3.8 3.7 3.6 3.5 3.4 3.3 3.2 3.2 3.1 3.0 2.9 2.9 2.8 2.7 2.6 2.6 2.5 2.5 2.4 2.4 2.3 2.3 30.24 22.1 16.32 12.17 9.153 6.945 5.313 4.097 3.183 2.491 1.963 1.557 1.244 1.0000 0.8083 0.6572 0.5373 0.4418 0.365 0.303 0.2527 0.2118 0.1783 0.1508 0.128 0.1091 0.0933 0.08016 0.0691 0.05974 0.05183 0.04512 0.0394 0.0345 0.03032 0.02672 0.02361 0.02091 0.01857 0.016537 6.3 6.1 5.9 5.8 5.6 5.4 5.2 5.1 4.9 4.8 4.7 4.6 4.4 4.3 4.2 4.1 4.0 3.9 3.7 3.7 3.6 3.5 3.4 3.3 3.2 3.2 3.1 3.0 2.9 2.9 2.8 2.8 2.7 2.6 2.6 2.5 2.5 2.4 2.4 2.3 Please read Cautions and warnings and Important notes at the end of this document. Page 4 of 10 Temperature measurement Probe assemblies B57703M M703 Please read Cautions and warnings and Important notes at the end of this document. Page 5 of 10 Temperature measurement Probe assemblies B57703M M703 Cautions and warnings General See "Important notes" at the end of this document. Storage Store thermistors only in original packaging. Do not open the package prior to storage. Storage conditions in original packaging: storage temperature 25 °C ... +45 °C, relative humidity ≤75% annual mean,