B57500K0103A001

NTC thermistors for temperature measurement Probe assemblies Series/Type: Date: B57500K, B57501K 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 B57500K, B57501K K500/K501 Applications Evaporator sensor for air conditioning systems Heating systems Features Copper case Twin cable (black) PVC-insulated wires with tinned ends, Tmax = 105 °C Options Alternative resistance ratings, rated temperatures, resistance tolerances, wire lengths and AWG 22, AWG 24 or AWG 26 available on request. Also available as type K800 with improved humidity resistance for temperature measurement in heat pumps. Delivery mode Bulk Dimensional drawings Dimensions in mm Please read Cautions and warnings and Important notes at the end of this document. Page 2 of 10 Temperature measurement Probe assemblies B57500K, B57501K K500/K501 General technical data Climatic category Max. power Resistance tolerance Rated temperature Dissipation factor Thermal cooling time constant Thermal time constant Heat capacity Insulation resistance Test voltage (IEC 60068-1) (at 25 °C) 30/100/56 60 ±3 25 approx. 7 approx. 130 approx. 8 approx. 900 > 100 1.5 (in air) (in air) (in water) (V = 100 V DC) (t = 1 s) P25 ∆RR/RR TR δth τc τa Cth Rins Vtest mW % °C mW/K s s mJ/K MΩ kV AC Electrical specification and ordering codes Type AWG R25 Ω 10 k 6.8 k No. of R/T B25/100 characteristic K 8016 8016 3988 ±0.5% 3988 ±0.5% Ordering code K500 K501 26 24 B57500K0103A001 B57501K0682A002 Please read Cautions and warnings and Important notes at the end of this document. Page 3 of 10 Temperature measurement Probe assemblies B57500K, B57501K K500/K501 Reliability data Test Storage in dry heat Standard IEC 60068-2-2 Test conditions ∆R25/R25 (typical) < 2% Remarks No visible damage Storage at upper category temperature T: 100 °C t: 1000 h Storage in damp IEC Temperature of air: 40 °C heat, steady state 60068-2-78 Relative humidity of air: 93% Duration: 56 days Storage in coldness Storage at lower category temperature T: 30 °C t: 1000 h Rapid temperature IEC Lower test temperature: 0 °C cycling (in fluid) 60068-2-14 Upper test temperature: 100 °C Time to change from lower to upper temperature: