B57981 EPCOS AG, B57981 Datasheet - Page 6

• Manufacturer Part Number: B57981
• Description: Ntc Thermistors For Temperature Measurement
• Manufacturer: EPCOS AG

R/T characteristics
R/T No. 8018
T ( C)
Please read Cautions and warnings and
Important notes at the end of this document.
Temperature measurement
Leaded NTC thermistors, lead spacing 2.5 mm
40.0
35.0
30.0
25.0
20.0
15.0
10.0
10.0
15.0
20.0
25.0
5.0
0.0
5.0
B
R
30.24
22.1
16.32
12.17
9.153
6.945
5.313
4.097
3.183
2.491
1.963
1.557
1.244
1.0000
25/100
T
/R
25
= 3964 K
6.3
6.1
5.9
5.8
5.6
5.4
5.2
5.1
4.9
4.8
4.7
4.6
4.4
4.3
(%/K)
T ( C)
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
75.0
80.0
85.0
90.0
95.0
B
R
0.8083
0.6572
0.5373
0.4418
0.365
0.303
0.2527
0.2118
0.1783
0.1508
0.128
0.1091
0.0933
0.08016
25/100
T
/R
Page 6 of 18
25
= 3964 K
4.2
4.1
4.0
3.9
3.7
3.7
3.6
3.5
3.4
3.3
3.2
3.2
3.1
3.0
(%/K)
T ( C)
100.0
105.0
110.0
115.0
120.0
125.0
130.0
135.0
140.0
145.0
150.0
155.0
B
R
0.0691
0.05974
0.05183
0.04512
0.0394
0.0345
0.03032
0.02672
0.02361
0.02091
0.01857
0.016537
25/100
T
/R
25
= 3964 K
B57981S
2.9
2.9
2.8
2.8
2.7
2.6
2.6
2.5
2.5
2.4
2.4
2.3
(%/K)
S981