B57504K0103A009

NTC thermistors for temperature measurement Probe assemblies Series/Type: B57504K 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 B57504K Probe assemblies K504 Applications Temperature measurement in household appliances (e.g. dryers, dish washers, small appliances) Dimensional drawing Features NTC thermistor potted in a medium-resistant stainless steel case Short thermal response time in water Wire heat-resistant up to 125 °C (XLPE-insulated wire) Options Alternative casing, cable lengths, cable material (PTFE), R/T characteristics and connectors available on request. Dimensions in mm Approx. weight 2.3 g Delivery mode Bulk General technical data Climatic category Upper category temperature Maximum operating temperature Resistance tolerance Rated temperature Dissipation factor Thermal time constant Insulation resistance Test voltage (IEC 60068-1) (wire) (sensor head) (in air) (in water) (V = 500 V DC) (t = 1 s) Top,max ∆RR/RR TR δth τa Rins Vtest 20/125/42 125 150 ±2 70 approx. 2 100 1250 °C °C % °C mW/K s MΩ V AC Electrical specification and ordering codes R70 Ω 2055 R25 Ω 10000 Please read Cautions and warnings and Important notes at the end of this document. No. of R/T characteristic 7003 Page 2 of 11 B25/100 K 3625 ±0.8% Ordering code B57504K0103A009 Temperature measurement B57504K Probe assemblies K504 Reliability data Test Standard Test conditions Storage in dry heat IEC 60068-2-2 Storage at max. operating temperature T: 150 °C t: 168 h Medium: air Storage at lower category temperature T: 20 °C t: 1000 h Medium: air Temperature of air: 60 °C Relative humidity of air: 93% Duration: 1000 h Lower test temperature: 15 °C Upper test temperature: 96 °C Dwell time: 30 s Time to change from lower to upper temperature: