B57045K472K Datasheet, PDF (3/11 Pages) EPCOS – NTC thermistors for temperature measurement

Temperature measurement
Probe assemblies
B57045K
K45
Electrical specification and ordering codes
R₂₅
Ω
1k
2.2 k
4.7 k
6.8 k
10 k
33 k
47 k
68 k
100 k
150 k
No. of R/T
characteristic
1011
1013
4001
2903
2904
1012
4003
2005
2005
2005
B_25/100
K
3730 ±3%
3900 ±3%
3950 ±3%
4200 ±3%
4300 ±3%
4300 ±3%
4450 ±3%
4600 ±3%
4600 ±3%
4600 ±3%
Reliability data
Test
Standard Test conditions
Storage in
dry heat
Storage in damp
heat, steady state
Endurance
Long-term stability
(empirical value)
IEC
60068-2-2
IEC
60068-2-78
Storage at upper
category temperature
T: 125 °C
t: 1000 h
Temperature of air: 40 °C
Relative humidity of air: 93%
Duration: 56 days
P_max: 450 mW
t: 1000 h
Temperature: 100 °C
t: 10000 h
Ordering code
B57045K0102K000
B57045K0222K000
B57045K0472K000
B57045K0682K000
B57045K0103K000
B57045K0333K000
B57045K0473K000
B57045K0683K000
B57045K0104K000
B57045K0154K000
∆R₂₅/R₂₅
(typical)
< 3%
Remarks
No visible
damage
< 3%
< 3%
< 5%
No visible
damage
No visible
damage
No visible
damage
Note
Contact of NTC thermistors with any liquids and solvents shall be prevented. It must be
ensured that no water enters the NTC thermistors (e.g. through plug terminals).
Avoid dewing and condensation unless thermistor is specified for these conditions.
Please read Cautions and warnings and
Important notes at the end of this document.
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