Datasheet

Applications
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
Dimensional drawing
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
25
200 mW
Resistance tolerance ∆R
R
/R
R
±1, ±3, ±5 %
Rated temperature T
R
25 °C
Dissipation factor (in air) δ
th
approx. 4 mW/K
Thermal cooling time constant (in air) τ
c
approx. 15 s
Heat capacity C
th
approx. 60 mJ/K
Electrical specification and ordering codes
R
25
Ω
No. of R/T
characteristic
B
25/100
K
Ordering code
+ = Resistance tolerance
F = ±1%
H = ±3%
J = ±5%
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
Temperature measurement and compensation B57891S
Leaded NTC thermistors, lead spacing 2.5 mm S891
Page 2 of 26Please read Cautions and warnings and
Important notes at the end of this document.