NTC thermistors for temperature measurement Leaded NTC thermistors, lead spacing 2.5 mm Series/Type: B57871S Date: 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 B57871S Leaded NTC thermistors, lead spacing 2.5 mm S871 Applications Dimensional drawing Temperature measurement Features High measuring accuracy Cost-effective Rugged design, epoxy resin encapsulation Tinned copper leads Lead spacing 2.5 mm Delivery mode Bulk (standard), cardboard tape, reeled or in Ammo pack on request Dimensions in mm Approx. weight 120 mg General technical data Climatic category (IEC 60068-1) 55/155/56 Max. power (at 25 C) P 60 mW 25 Resistance tolerance R /R 1, 3, 5 % R R Rated temperature T 25 C R Dissipation factor (in air) approx. 3.8 mW/K th Thermal cooling time constant (in air) approx. 7.5 s c Heat capacity C approx. 28.5 mJ/K th Electrical specification and ordering codes R No. of R/T B Ordering code 25 25/100 characteristic K 2.1 k 1008 3560 1% B57871S0212+000 10 k 8016 3988 1% B57871S0103+001 10 k 2908 3460 1% B57871S0103+002 10 k 2001 3920 1% B57871S0103+003 12 k 2901 3760 1% B57871S0123+000 30 k 8018 3964 1% B57871S0303+000 100 k 2912 4280 1% B57871S0104+000 + = Resistance tolerance F = 1% H = 3% J = 5% Please read Cautions and warnings and Page 2 of 19 Important notes at the end of this document.