B57891-S222-J8 EPCOS Inc, B57891-S222-J8 Datasheet - Page 4

• Manufacturer Part Number: B57891-S222-J8
• Manufacturer: EPCOS Inc
• Type: NTCr

Specifications of B57891-S222-J8

• Mounting Style: Through Hole
• Pin Count: 2
• Sensitivity Index: 3560K
• Resistance @ 25c: 2.2kohm
• Thermal Time Constant: 15s
• Percentage Of Resistance Tolerance @ 25c: ±5
• Accuracy: ±1.5
• Product Length (mm): Not Requiredmm
• Product Height (mm): Not Requiredmm
• Product Depth (mm): 4.5mm
• Lead Free Status / RoHS Status: Compliant

R/T characteristics
R/T No.
T ( C)
Please read Cautions and warnings and
Important notes at the end of this document.
Temperature measurement and compensation
Leaded NTC thermistors, lead spacing 2.5 mm
100.0
105.0
110.0
115.0
120.0
125.0
130.0
135.0
140.0
145.0
150.0
155.0
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
50.0
55.0
60.0
65.0
70.0
75.0
80.0
85.0
90.0
95.0
5.0
0.0
5.0
1008
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
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
0.025193
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
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
2.0
(%/K) R
2001
B
87.762
61.922
44.168
31.833
23.173
17.03
12.621
9.4515
7.1273
5.427
4.1522
3.2063
2.5019
1.9679
1.5623
1.2488
1.0000
0.81105
0.6593
0.53922
0.44345
0.36674
0.30513
0.25514
0.21457
0.18131
0.1536
0.13064
0.11155
0.095606
0.082347
0.07118
0.061779
0.053799
0.04697
0.041132
0.036141
0.03185
0.02815
0.02495
0.02216
0.01972
0.01761
25/100
T
/R
25
= 3920 K
Page 4 of 19
7.1
6.9
6.7
6.5
6.3
6.1
5.9
5.8
5.6
5.5
5.3
5.1
4.9
4.7
4.6
4.5
4.3
4.2
4.1
4.0
3.9
3.7
3.6
3.5
3.4
3.4
3.3
3.2
3.1
3.0
3.0
2.9
2.8
2.8
2.7
2.6
2.6
2.5
2.5
2.4
2.3
2.3
2.2
(%/K) R
2901
B
63.969
46.179
33.738
24.927
18.611
14.033
10.679
8.198
6.3123
4.9014
3.821
3.0027
2.3801
1.9
1.5257
1.233
1.0000
0.81679
0.67166
0.55527
0.46095
0.38459
0.32184
0.27068
0.22907
0.19468
0.16607
0.14221
0.12218
0.10533
0.09123
0.079284
0.069062
0.06034
0.052886
0.046482
0.040985
0.036233
0.032101
0.02851
0.025373
0.022633
0.020231
25/100
T
/R
25
= 3760 K
6.7
6.4
6.2
6.0
5.8
5.6
5.4
5.3
5.2
5.1
4.9
4.7
4.6
4.5
4.3
4.3
4.1
4.0
3.9
3.8
3.8
3.7
3.6
3.5
3.3
3.2
3.1
3.1
3.0
2.9
2.8
2.8
2.7
2.7
2.6
2.5
2.5
2.5
2.4
2.4
2.3
2.3
2.3
(%/K)
B57891S
S891