NTC thermistors for temperature measurement Leaded NTC thermistors, lead spacing 2.5 mm Series/Type: B57891S Date: March 2013 EPCOS AG 2015. 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 and compensation B57891S Leaded NTC thermistors, lead spacing 2.5 mm S891 Applications Dimensional drawing Temperature measurement and compensation Features Favorable price/ performance ratio Rugged design, epoxy resin encapsulation Leads: copper-clad Fe wire, tinned UL approval (E69802) Options Lead spacing 5 mm available on request Delivery mode Bulk (standard), cardboard tape, reeled or in Ammo pack on request Dimensions in mm Approx. weight 0.2 g General technical data Climatic category (IEC 60068-1) 55/155/56 Max. power (at 25 C) P 200 mW 25 Resistance tolerance R /R 1, 3, 5 % R R Rated temperature T 25 C R Dissipation factor (in air) approx. 4 mW/K th Thermal cooling time constant (in air) approx. 15 s c Heat capacity C approx. 60 mJ/K th Electrical specification and ordering codes R No. of R/T B Ordering code 25 25/100 characteristic K 2.2 k 1008 3560 1.5% B57891S0222+008 5 k 2003 3980 1% B57891S0502+008 10 k 4901 3950 1% B57891S0103+008 20 k 2904 4300 1% B57891S0203+008 100 k 4003 4450 1% B57891S0104+008 + = Resistance tolerance F = 1% H = 3% J = 5% Please read Cautions and warnings and Page 2 of 26 Important notes at the end of this document.