B57220 EPCOS AG, B57220 Datasheet - Page 4
B57220
Manufacturer Part Number
B57220
Description
Ntc Thermistors For Temperature Measurement
Manufacturer
EPCOS AG
Datasheet
1.B57220.pdf
(12 pages)
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Part Number
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Quantity
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R/T characteristics
R/T No. 1008
T ( C)
Please read Cautions and warnings and
Important notes at the end of this document.
Temperature measurement and compensation
Leadless NTCs
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
15.0
10.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
5.0
0.0
5.0
B
R
53.104
39.318
29.325
22.03
16.666
12.696
9.7251
7.5171
5.8353
4.5686
3.605
2.8665
2.2907
1.8438
1.492
1.2154
1.0000
0.82976
0.68635
0.57103
0.48015
25/100
T
/R
25
= 3560 K
6.1
6.0
5.8
5.7
5.5
5.4
5.2
5.1
4.9
4.8
4.7
4.5
4.4
4.3
4.1
4.0
3.9
3.8
3.7
3.6
3.5
(%/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
50.0
55.0
60.0
65.0
70.0
75.0
80.0
85.0
90.0
95.0
B
R
0.40545
0.3417
0.28952
0.24714
0.21183
0.18194
0.1568
0.13592
0.11822
0.1034
0.090741
0.079642
0.070102
0.061889
0.054785
0.048706
0.043415
0.038722
0.034615
0.031048
0.02791
25/100
T
/R
Page 4 of 12
25
= 3560 K
3.4
3.3
3.2
3.1
3.1
3.0
2.9
2.8
2.8
2.7
2.6
2.6
2.5
2.4
2.4
2.3
2.3
2.2
2.2
2.1
2.1
(%/K)
T ( C)
155.0
160.0
165.0
170.0
175.0
180.0
185.0
190.0
195.0
200.0
205.0
210.0
215.0
220.0
225.0
230.0
235.0
240.0
245.0
250.0
B
R
0.025193
0.02279
0.020667
0.01878
0.01709
0.015582
0.014227
0.013012
0.011934
0.010964
0.0101
0.0093191
0.0085949
0.0079384
0.0073411
0.006798
0.0063087
0.0058623
0.0054487
0.0050705
25/100
T
/R
25
= 3560 K
B57220K
2.0
2.0
2.0
1.9
1.9
1.8
1.8
1.8
1.7
1.7
1.7
1.6
1.6
1.6
1.5
1.5
1.5
1.5
1.4
1.4
(%/K)
K220