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.
