S981 Datasheet, PDF (2/27 Pages) EPCOS – NTC thermistors for temperature measurement

Temperature measurement
Leaded NTC thermistors, lead spacing 2.5 mm
B57981S
S981
Applications
Temperature measurement
Dimensional drawing
Features
Flexible epoxy coating of head and wires
High measuring accuracy
Cost-effective
Rugged design
Tinned copper leads
Lead spacing 2.5 mm
Options
Alternative coating length of wires on request
Delivery mode
Bulk (standard), cardboard tape, reeled or in
Ammo pack on request
Dimensions in mm
Approx. weight 150 mg
General technical data
Climatic category
Max. power
Resistance tolerance
Rated temperature
Dissipation factor
Thermal cooling time constant
Heat capacity
(IEC 60068-1)
(at 25 °C)
(in air)
(in air)
P₂₅
∆R_R/R_R
T_R
δ_th
τ_c
C_th
55/155/56
100
±1, ±3, ±5
25
approx. 4
approx. 11.5
approx. 46
mW
%
°C
mW/K
s
mJ/K
Electrical specification and ordering codes
R₂₅
Ω
2.1 k
10 k
10 k
30 k
No. of R/T
characteristic
1008
2003
2908
8018
+ = Resistance tolerance
F = ±1%
H = ±3%
J = ±5%
B_25/100
K
3560 ±1%
3980 ±1%
3460 ±1%
3964 ±1%
Ordering code
B57981S0212+000
B57981S0103+001
B57981S0103+002
B57981S0303+000
Please read Cautions and warnings and
Important notes at the end of this document.
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