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EPCOS |
NTC thermistors for
temperature measurement
Leaded NTC thermistors,
lead spacing 2.5 mm
Series/Type:
Date:
B57981S
February 2009
www.DataSheet4U.com
© 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
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
∆RR/RR
TR
δth
τc
Cth
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 No. of R/T
Ω characteristic
2.1 k
1008
10 k 2003
ww10wk.DataSheet4U.com 2908
30 k 8018
+ = Resistance tolerance
F = ±1%
H = ±3%
J = ±5%
B25/100
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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