B57703M1104A002

NTC thermistors for temperature measurement Probe assemblies Series/Type: B57703M1 Date: January 2018 © EPCOS AG 2018. Reproduction, publication and dissemination of this publication, enclosures hereto and the information contained therein without EPCOS' prior express consent is prohibited. EPCOS AG is a TDK Group Company. Temperature measurement B57703M1 Probe assemblies M1703 Applications Measurement of high temperatures on surfaces, e.g. in ovens, on heat sinks and housings Dimensional drawing Features NTC thermistor encapsulated in a brass metal-tag case Suitable for temperatures up to 300 °C at the sensor head Easy mounting and good thermal coupling Wire heat resistant up to 200 °C (PTFE-insulated wire AWG 26 coated with fiberglass sleeve), Molex connector operating temperature: 40 to 105 °C Options Alternative cable lengths, R/T characteristics and connectors available on request. Dimensions in mm Approx. weight 8.1 g Delivery mode Bulk General technical data Climatic category Upper category temperature Maximum operating temperature Max. power Resistance tolerance Rated temperature Dissipation factor Thermal cooling time constant Heat capacity Test voltage (IEC 60068-1) (sensor head) (at 25 °C) (in air) (in air) (t = 1 s) Top,max P25 ∆RR/RR TR δth τc Cth Vtest +10/200/56 200 300 50 ±3 25 approx. 2 approx. 20 approx. 40 1250 °C °C mW % °C mW/K s mJ/K V AC Electrical specification and ordering codes R25 Ω 100 k No. of R/T characteristic 8404 Please read Cautions and warnings and Important notes at the end of this document. B25/100 K 4085 B0/100 K 4036 ±1% Page 2 of 11 Ordering code B57703M1104A002 Temperature measurement B57703M1 Probe assemblies M1703 Reliability data Test Storage at maximum operating temperature Storage in damp heat, steady state Rapid temperature cycling Voltage proof test Insulation test Standard Test conditions Sensor head placed on metal plate. T: 300 °C t: 1000 h IEC Temperature of air: 85 °C 60068-2-67 Relative humidity of air: 85% Duration: 56 days Sensor tip is exposed to cold and hot air for 5 min duration each temperature. Lower test temperature: 10 °C Upper test temperature: 300 °C Number of cycles: 100 The sensors are placed in a vessel containing metallic balls of 1 mm diameter (with total immersed head) at ambient temperature: 1250 V AC/1 s The sensors are placed in a vessel containing metallic balls of 1 mm diameter (with total immersed head) at ambient temperature. The applied voltage is 500 V DC. ∆R25/R25 (typical) < 3% Remarks < 3% No visible damage < 3% No visible damage No visible damage No flashover Above 100 MΩ Note Contact of NTC thermistors with any liquids and solvents shall be prevented. It must be ensured that no water enters the NTC thermistors (e.g. through plug terminals). Avoid dewing and condensation unless thermistor is specified for these conditions. Please read Cautions and warnings and Important notes at the end of this document. Page 3 of 11 Temperature measurement B57703M1 Probe assemblies M1703 R/T characteristics R/T No. 8404 T (°C) B0/100 = 4036 K T (°C) RT/R25 α (%/K) B0/100 = 4036 K T (°C) RT/R25 α (%/K) B0/100 = 4036 K RT/R25 α (%/K) 55.0 50.0 45.0 40.0 35.0 98.775 68.648 48.337 34.458 24.852 7.4 7.1 6.9 6.6 6.4 50.0 55.0 60.0 65.0 70.0 0.35272 0.29119 0.24161 0.20144 0.16874 3.9 3.8 3.7 3.6 3.5 155.0 160.0 165.0 170.0 175.0 0.014691 0.013073 0.011662 0.010427 0.0093446 2.4 2.3 2.3 2.2 2.2 30.0 25.0 20.0 15.0 10.0 18.124 13.356 9.9413 7.47 5.6639 6.2 6.0 5.8 5.6 5.4 75.0 80.0 85.0 90.0 95.0 0.14198 0.11998 0.10181 0.086744 0.074189 3.4 3.3 3.2 3.2 3.1 180.0 185.0 190.0 195.0 200.0 0.0083928 0.0075542 0.0068135 0.0061578 0.0055762 2.1 2.1 2.0 2.0 2.0 5.0 0.0 5.0 10.0 15.0 4.3314 3.3396 2.585 2.0166 1.585 5.3 5.2 5.0 4.9 4.7 100.0 105.0 110.0 115.0 120.0 0.063688 0.05487 0.047437 0.041148 0.035808 3.0 2.9 2.9 2.8 2.7 205.0 210.0 215.0 220.0 225.0 0.0050592 0.0045986 0.0041876 0.0038199 0.0034906 1.9 1.9 1.9 1.8 1.8 20.0 25.0 30.0 35.0 40.0 1.2547 1.0000 0.80223 0.64759 0.52589 4.6 4.5 4.3 4.2 4.1 125.0 130.0 135.0 140.0 145.0 0.031259 0.02737 0.024035 0.021167 0.018691 2.7 2.6 2.6 2.5 2.5 230.0 235.0 240.0 245.0 250.0 0.0031949 0.002929 0.0026895 0.0024734 0.002278 1.8 1.7 1.7 1.7 1.6 45.0 0.42951 4.0 150.0 0.016549 2.4    Please read Cautions and warnings and Important notes at the end of this document. Page 4 of 11 Temperature measurement B57703M1 Probe assemblies M1703 Cautions and warnings General See "Important notes" on page 2. Storage Store thermistors only in original packaging. Do not open the package prior to processing. Storage conditions in original packaging: storage temperature 25 °C ... +45 °C, relative humidity ≤75% annual mean,