Temperature measurement and compensation
Leadless NTCs
B57820M
M820
R/T characteristics
1006
1008
1009
R/T No.
T (°C)
B25/100 = 3550 K
RT/R25
B25/100 = 3560 K
B25/100 = 3930 K
α (%/K) RT/R25
α (%/K) RT/R25
α (%/K)
ꢀ55.0 48.503
ꢀ50.0 36.524
ꢀ45.0 27.639
ꢀ40.0 21.021
ꢀ35.0 16.069
5.8
5.7
5.6
5.5
5.4
53.104
39.318
29.325
22.03
6.1
6.0
5.8
5.7
5.5
85.423
60.781
43.65
31.629
23.118
7.0
6.8
6.6
6.4
6.2
16.666
ꢀ30.0 12.348
5.3
5.1
5.1
4.9
4.9
12.696
9.7251
7.5171
5.8353
4.5686
5.4
5.2
5.1
4.9
4.8
17.04
6.1
5.9
5.8
5.6
5.4
ꢀ25.0
ꢀ20.0
ꢀ15.0
ꢀ10.0
9.5313
7.4185
5.778
12.649
9.4864
7.1545
5.4479
4.5373
ꢀ5.0
0.0
5.0
10.0
15.0
3.5762
2.8409
2.2739
1.833
4.7
4.5
4.4
4.2
4.1
3.605
4.7
4.5
4.4
4.3
4.1
4.1732
3.2256
2.5147
1.9763
1.5649
5.2
5.1
4.9
4.8
4.6
2.8665
2.2907
1.8438
1.492
1.4883
20.0
25.0
30.0
35.0
40.0
1.216
4.0
3.9
3.8
3.7
3.6
1.2154
1.0000
0.82976
0.68635
0.57103
4.0
3.9
3.8
3.7
3.6
1.2481
1.0000
0.80956
0.65726
0.53697
4.5
4.3
4.2
4.1
4.0
1.0000
0.82627
0.686
0.57254
45.0
50.0
55.0
60.0
65.0
0.4805
3.5
3.4
3.3
3.2
3.1
0.48015
0.40545
0.3417
0.28952
0.24714
3.5
3.4
3.3
3.2
3.1
0.44169
0.36534
0.30327
0.25313
0.21271
3.9
3.8
3.7
3.5
3.4
0.40514
0.34213
0.29036
0.24838
70.0
75.0
80.0
85.0
90.0
0.21342
0.18371
0.15873
0.13756
0.11961
3.0
3.0
2.9
2.8
2.8
0.21183
0.18194
0.1568
0.13592
0.11822
3.1
3.0
2.9
2.8
2.8
0.17962
0.15219
0.12949
0.11067
0.094952
3.4
3.3
3.2
3.1
3.0
95.0
100.0
105.0
110.0
115.0
0.10435
2.7
2.6
2.6
2.5
2.4
0.1034
2.7
2.6
2.6
2.5
2.4
0.08178
0.07069
0.061383
0.053486
0.04673
3.0
2.9
2.8
2.7
2.7
0.091314
0.080265
0.070764
0.062544
0.090741
0.079642
0.070102
0.061889
120.0
125.0
130.0
135.0
140.0
0.055431
0.049252
0.043872
0.039254
0.035209
2.4
2.3
2.3
2.2
2.2
0.054785
0.048706
0.043415
0.038722
0.034615
2.4
2.3
2.3
2.2
2.2
0.040955
0.036006
0.031747
0.028097
0.024935
2.6
2.5
2.5
2.4
2.4
145.0
150.0
155.0
0.031581
0.028389
0.025614
2.2
2.1
2.0
0.031048
0.02791
0.025193
2.1
2.1
2.0
0.022176
0.019772
0.017683
2.3
2.3
2.2
Please read Cautions and warnings and
Important notes at the end of this document.
Page 4 of 20