NTC thermistors for
temperature measurement
Miniature sensors
with bendable wires
Series/Type:
B57867
Date:
March 2006
EPCOS AG 2006. Reproduction, publication and dissemination of this publication, enclosures hereto and the
information contained therein without EPCOS' prior express consent is prohibited.
Applications
Heating systems
Industrial electronics
Automotive electronics
Features
Fast response
High measuring accuracy
Different tolerances available
Epoxy resin encapsulation
Silver-plated nickel leads
UL approval (E69802)
Options
Non-standard lead lengths
Delivery mode
Bulk
Dimensional drawing
Dimensions in mm
Approx. weight 60 mg
General technical data
Climatic category
(IEC 60068-1)
55/155/56
Max. power
(at 25
C)
P
25
60
mW
Resistance tolerance
R
R
/R
R
1,
3,
5
%
Rated temperature
T
R
25
C
Dissipation factor
(in air)
th
approx. 1.5
mW/K
Thermal cooling time constant
(in air)
c
approx. 12
s
Heat capacity
C
th
approx. 18
mJ/K
Electrical specification and ordering codes
R
25
No. of R/T
characteristic
B
25/100
K
Ordering code
+ =
Resistance tolerance
F =
1%
H =
3%
J =
5%
2 k
1008
3560
1%
B57867S0202+140
3 k
8016
3988
1%
B57867S0302+140
5 k
8016
3988
1%
B57867S0502+140
10 k
8016
3988
1%
B57867S0103+140
30 k
8018
3964
1%
B57867S0303+140
50 k
2901
3760
1%
B57867S0503+140
100 k
2014
4540
1%
B57867S0104+140
Temperature measurement
B57867
Miniature sensors with bendable wires
S867
Page 2 of 32
Please read Important notes and
Cautions and warnings at the end of this document.
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: 155
C
t: 1000 h
< 2%
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
< 1%
No visible
damage
Rapid temperature
cycling
IEC
60068-2-14
Lower test temperature:
55
C
Upper test temperature: 155
C
Number of cycles: 100
< 1%
No visible
damage
Long-term stability
(empirical value)
Temperature: 70
C
t: 10000 h
< 2%
No visible
damage
Temperature measurement
B57867
Miniature sensors with bendable wires
S867
Page 3 of 32
Please read Important notes and
Cautions and warnings at the end of this document.
R/T characteristics
B57867S0202F140
R/T No.
1008
T (
C)
B
25/100
= 3560 K, R
25
= 2000
, T
R
= 25
C,
R
R
/R
R
=
1%
R
nom
[
]
R
min
[
]
R
max
[
]
R
R
/R
R
[
%]
T[
C]
(%/K)
55.0
106210
100440
111970
5.4
0.9
6.1
50.0
78635
74654
82616
5.1
0.8
6.0
45.0
58650
55886
61415
4.7
0.8
5.8
40.0
44060
42131
45989
4.4
0.8
5.7
35.0
33333
31980
34686
4.1
0.7
5.5
30.0
25392
24439
26344
3.8
0.7
5.4
25.0
19450
18778
20122
3.5
0.7
5.2
20.0
15034
14557
15511
3.2
0.6
5.1
15.0
11671
11332
12009
2.9
0.6
4.9
10.0
9137
8896
9378
2.6
0.5
4.8
5.0
7210
7038
7382
2.4
0.5
4.7
0.0
5733
5610
5856
2.1
0.5
4.5
5.0
4581
4494
4669
1.9
0.4
4.4
10.0
3688
3625
3750
1.7
0.4
4.3
15.0
2984
2940
3028
1.5
0.4
4.1
20.0
2431
2400
2461
1.3
0.3
4.0
25.0
2000
1980
2020
1.0
0.3
3.9
30.0
1660
1639
1680
1.2
0.3
3.8
35.0
1373
1353
1392
1.4
0.4
3.7
40.0
1142
1124
1161
1.6
0.5
3.6
45.0
960.3
943.0
977.6
1.8
0.5
3.5
50.0
810.9
794.9
826.9
2.0
0.6
3.4
55.0
683.4
668.8
698.0
2.1
0.6
3.3
60.0
579.0
565.7
592.4
2.3
0.7
3.2
65.0
494.3
482.1
506.5
2.5
0.8
3.1
70.0
423.7
412.6
434.7
2.6
0.9
3.1
75.0
363.9
353.8
373.9
2.8
0.9
3.0
80.0
313.6
304.5
322.7
2.9
1.0
2.9
85.0
271.8
263.5
280.1
3.1
1.1
2.8
90.0
236.4
228.9
244.0
3.2
1.2
2.8
95.0
206.8
199.9
213.7
3.3
1.2
2.7
100.0
181.5
175.2
187.7
3.4
1.3
2.6
105.0
159.3
153.6
165.0
3.6
1.4
2.6
110.0
140.2
135.0
145.4
3.7
1.5
2.5
115.0
123.8
119.1
128.5
3.8
1.6
2.4
120.0
109.6
105.3
113.9
3.9
1.6
2.4
125.0
97.41
93.47
101.4
4.0
1.7
2.3
130.0
86.83
83.22
90.44
4.2
1.8
2.3
135.0
77.44
74.14
80.75
4.3
1.9
2.2
Temperature measurement
B57867
Miniature sensors with bendable wires
S867
Page 4 of 32
Please read Important notes and
Cautions and warnings at the end of this document.
B57867S0202F140
R/T No.
1008
T (
C)
B
25/100
= 3560 K, R
25
= 2000
, T
R
= 25
C,
R
R
/R
R
=
1%
R
nom
[
]
R
min
[
]
R
max
[
]
R
R
/R
R
[
%]
T[
C]
(%/K)
140.0
69.23
66.20
72.26
4.4
2.0
2.2
145.0
62.10
59.32
64.88
4.5
2.1
2.1
150.0
55.82
53.26
58.37
4.6
2.2
2.1
155.0
50.39
48.03
52.74
4.7
2.3
2.0
B57867S0202H140
R/T No.
1008
T (
C)
B
25/100
= 3560 K, R
25
= 2000
, T
R
= 25
C,
R
R
/R
R
=
3%
R
nom
[
]
R
min
[
]
R
max
[
]
R
R
/R
R
[
%]
T[
C]
(%/K)
55.0
106210
98317
114100
7.4
1.2
6.1
50.0
78635
73081
84189
7.1
1.2
6.0
45.0
58650
54713
62588
6.7
1.2
5.8
40.0
44060
41250
46871
6.4
1.1
5.7
35.0
33333
31313
35352
6.1
1.1
5.5
30.0
25392
23931
26852
5.8
1.1
5.4
25.0
19450
18389
20511
5.5
1.0
5.2
20.0
15034
14256
15812
5.2
1.0
5.1
15.0
11671
11099
12242
4.9
1.0
4.9
10.0
9137
8713
9561
4.6
1.0
4.8
5.0
7210
6894
7526
4.4
0.9
4.7
0.0
5733
5495
5970
4.1
0.9
4.5
5.0
4581
4402
4761
3.9
0.9
4.4
10.0
3688
3552
3823
3.7
0.9
4.3
15.0
2984
2881
3087
3.5
0.8
4.1
20.0
2431
2352
2510
3.3
0.8
4.0
25.0
2000
1940
2060
3.0
0.8
3.9
30.0
1660
1606
1713
3.2
0.9
3.8
35.0
1373
1326
1420
3.4
0.9
3.7
40.0
1142
1101
1183
3.6
1.0
3.6
45.0
960.3
923.8
996.8
3.8
1.1
3.5
50.0
810.9
778.7
843.1
4.0
1.2
3.4
55.0
683.4
655.1
711.7
4.1
1.2
3.3
60.0
579.0
554.1
604.0
4.3
1.3
3.2
65.0
494.3
472.2
516.3
4.5
1.4
3.1
70.0
423.7
404.1
443.2
4.6
1.5
3.1
75.0
363.9
346.5
381.2
4.8
1.6
3.0
80.0
313.6
298.2
329.0
4.9
1.7
2.9
85.0
271.8
258.1
285.6
5.1
1.8
2.8
90.0
236.4
224.2
248.7
5.2
1.9
2.8
Temperature measurement
B57867
Miniature sensors with bendable wires
S867
Page 5 of 32
Please read Important notes and
Cautions and warnings at the end of this document.
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