NTC thermistors for temperature measurement Leaded NTC thermistors, lead spacing 2.5 mm Series/Type: B57891M 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 B57891M Leaded NTC thermistors, lead spacing 2.5 mm M891 Applications Dimensional drawing Temperature measurement and compensation Features Wide resistance range Cost-effective Lacquer-coated thermistor disk Leads: copper-clad Fe wire, tinned Marked with resistance and tolerance 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) 40/125/56 Max. power (at 25 C) P 200 mW 25 Resistance tolerance R /R 5, 10 % R R Rated temperature T 25 C R Dissipation factor (in air) approx. 3.5 mW/K th Thermal cooling time constant (in air) approx. 12 s c Heat capacity C approx. 40 mJ/K th Electrical specification and ordering codes R No. of R/T B Ordering code 25 25/100 characteristic K 1 k 1009 3930 3% B57891M0102+000 1.5 k 1008 3560 3% B57891M0152+000 2.2 k 1013 3900 3% B57891M0222+000 3.3 k 2003 3980 3% B57891M0332+000 4.7 k 2003 3980 3% B57891M0472+000 6.8 k 2003 3980 3% B57891M0682+000 10 k 4901 3950 3% B57891M0103+000 15 k 2004 4100 3% B57891M0153+000 22 k 2904 4300 3% B57891M0223+000 + = Resistance tolerance J = 5% K = 10% Please read Cautions and warnings and Page 2 of 28 Important notes at the end of this document.
