96 05/02
Applications
■Heating and air conditioning systems
■Industrial electronics
■Automotive electronics
Features
■Uni curve sensor
■Fast response
■High temperature accuracy
between 0 °C and 70 °C
■Excellent long-term stability
■Epoxy resin encapsulation
■Silver-plated nickel leads
Delivery mode
Bulk
+: F for ∆T = 0,2 K
Gfor
∆T = 0,5 K
For calculation of the R/T characteristics refer to our special tool “NTC R/T calculation”. You may
download this tool either from Internet (http://www.epcos.com → Design Tools → NTC Thermistors
→ NTC R/T Calculation) or from the CD-ROM “Data Book Library” (Please order via Internet:
Publications → General Publications).
Climatic category (IEC 60068-1)
Max. power at 25 °CP25
Temperature tolerance (0 … 70 °C) ∆T
Rated temperature TN
Dissipation factor (in air) δth
Thermal cooling time constant (in air) τc
Heat capacity Cth
55/155/56
60
± 0,2, ± 0,5
25
approx. 1,5
approx. 12
approx. 18
mW
K
°C
mW/K
s
mJ/K
R25
Ω
No. of R/T
characteristic
B25/100
K
Ordering code
3 k 8016 3988 B57869S0302+140
5 k 8016 3988 B57869S0502+140
10 k 8016 3988 B57869S0103+140
30 k 8018 3964 B57869S0303+140
TNT0394-H
6,5 max.
50±2
ø2,41 max.
ø0,25
Dimensions in mm
Approx. weight 60 mg
B57869Temperature Measurement
S869Miniature Sensors
97 05/02
Reliability data
Test Standard Test conditions ∆R25/R25
(typical)
Remarks
Storage in
dry heat
IEC
60068-2-2
Storage at upper
category temperature
T: 155 °C
t: 1000 h
< 1 %
< 2 %1)
No visible
damage
Storage in damp
heat, steady state
IEC
60068-2-3
Temperature of air: 40 °C
Relative humidity of air: 93 %
Duration: 56 days
< 1 % No visible
damage
Rapid temperature
cycling
IEC
60068-2-14
Lower test temperature: – 55 °C
Upper test temperature: 155 °C
Number of cycles: 100
< 1 % No visible
damage
Long-term stability
(empirical value)
Temperature: 70 °C
t: 10 000 h
< 2 % No visible
damage
1) For B57869S0302-+140
B57869Temperature Measurement
S869Miniature Sensors
Herausgegeben von EPCOS AG
Unternehmenskommunikation, Postfach 80 17 09, 81617 München, DEUTSCHLAND
(
++49 89 636 09, FAX (0 89) 636-2 26 89
EPCOS AG 2002. Vervielfältigung, Veröffentlichung, Verbreitung und Verwertung dieser Broschüre und ihres Inhalts ohne aus-
drückliche Genehmigung der EPCOS AG nicht gestattet.
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zuholen.
Published by EPCOS AG
Corporate Communications, P.O. Box 80 17 09, 81617 Munich, GERMANY
(
++49 89 636 09, FAX (0 89) 636-2 26 89
EPCOS AG 2002. Reproduction, publication and dissemination of this brochure and the information contained therein without
EPCOS’ prior express consent is prohibited.
Purchase orders are subject to the General Conditions for the Supply of Products and Services of the Electrical and Electronics
Industry recommended by the ZVEI (German Electrical and Electronic Manufacturers’ Association), unless otherwise agreed.
This brochure replaces the previous edition.
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