Datasheet

R
25
Ω
No. of R/T
characteristic
B
25/100
K
Ordering code
+ = Resistance tolerance
J = ±5%
K = ±10%
33 k 2904 4300 ±3% B57891M0333+000
47 k 4012 4355 ±3% B57891M0473+000
68 k 4012 4355 ±3% B57891M0683+000
100 k 4003 4450 ±3% B57891M0104+000
150 k 2005 4600 ±3% B57891M0154+000
220 k 2005 4600 ±3% B57891M0224+000
330 k 2007 4830 ±3% B57891M0334+000
470 k 2006 5000 ±3% B57891M0474+000
Reliability data
Test Standard Test conditions ∆R
25
/R
25
(typical)
Remarks
Storage in
dry heat
IEC
60068-2-2
Storage at upper
category temperature
T: 125 °C
t: 1000 h
< 3% No visible
damage
Storage in damp
heat, steady state
IEC
60068-2-78
Temperature of air: 40 °C
Relative humidity of air: 93%
Duration: 56 days
< 2% No visible
damage
Rapid temperature
cycling
IEC
60068-2-14
Lower test temperature: 40 °C
Upper test temperature: 125 °C
Number of cycles: 100
< 2% No visible
damage
Endurance P
max
: 200 mW
t: 1000 h
< 3% No visible
damage
Long-term stability
(empirical value)
Temperature: 70 °C
t: 10000 h
< 5% 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.
Temperature measurement and compensation B57891M
Leaded NTC thermistors, lead spacing 2.5 mm M891
Page 3 of 28Please read Cautions and warnings and
Important notes at the end of this document.