NTC thermistors for
temperature measurement
Miniature sensors
with bendable wires
Series/Type:
Date:
B57867
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.
Temperature measurement
Miniature sensors with bendable wires
B57867
S867
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
General technical data
Climatic category
Max. power
Resistance tolerance
Rated temperature
Dissipation factor
Thermal cooling time constant
Heat capacity
(IEC 60068-1)
(at 25
°C)
Dimensional drawing
Dimensions in mm
Approx. weight 60 mg
(in air)
(in air)
P
25
∆R
R
/R
R
T
R
δ
th
τ
c
C
th
55/155/56
60
±1, ±3, ±5
25
approx. 1.5
approx. 12
approx. 18
mW
%
°C
mW/K
s
mJ/K
Electrical specification and ordering codes
R
25
Ω
2k
3k
5k
10 k
30 k
50 k
100 k
+ = Resistance tolerance
F =
±1%
H =
±3%
J =
±5%
No. of R/T
characteristic
1008
8016
8016
8016
8018
2901
2014
B
25/100
K
3560
±1%
3988
±1%
3988
±1%
3988
±1%
3964
±1%
3760
±1%
4540
±1%
Ordering code
B57867S0202+140
B57867S0302+140
B57867S0502+140
B57867S0103+140
B57867S0303+140
B57867S0503+140
B57867S0104+140
Please read
Important notes
and
Cautions and warnings
at the end of this document.
Page 2 of 32
Temperature measurement
Miniature sensors with bendable wires
B57867
S867
Reliability data
Test
Storage in
dry heat
Standard
IEC
60068-2-2
Test conditions
∆R
25
/R
25
(typical)
< 2%
Remarks
No visible
damage
Storage in damp
heat, steady state
Rapid temperature
cycling
Long-term stability
(empirical value)
Storage at upper
category temperature
T: 155
°C
t: 1000 h
IEC
Temperature of air: 40
°C
60068-2-78 Relative humidity of air: 93%
Duration: 56 days
IEC
Lower test temperature: 55
°C
60068-2-14 Upper test temperature: 155
°C
Number of cycles: 100
Temperature: 70
°C
t: 10000 h
< 1%
No visible
damage
No visible
damage
No visible
damage
< 1%
< 2%
Please read
Important notes
and
Cautions and warnings
at the end of this document.
Page 3 of 32
Temperature measurement
Miniature sensors with bendable wires
B57867
S867
R/T characteristics
B57867S0202F140
R/T No.
T (°C)
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
15.0
10.0
5.0
0.0
5.0
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
100.0
105.0
110.0
115.0
120.0
125.0
130.0
135.0
1008
B
25/100
= 3560 K, R
25
= 2000
Ω,
T
R
= 25
°C, ∆R
R
/R
R
=
±
1%
R
nom
[Ω]
R
min
[Ω]
R
max
[Ω]
∆R
R
/R
R
[±%]
∆T[±°C]
106210
78635
58650
44060
33333
25392
19450
15034
11671
9137
7210
5733
4581
3688
2984
2431
2000
1660
1373
1142
960.3
810.9
683.4
579.0
494.3
423.7
363.9
313.6
271.8
236.4
206.8
181.5
159.3
140.2
123.8
109.6
97.41
86.83
77.44
100440
74654
55886
42131
31980
24439
18778
14557
11332
8896
7038
5610
4494
3625
2940
2400
1980
1639
1353
1124
943.0
794.9
668.8
565.7
482.1
412.6
353.8
304.5
263.5
228.9
199.9
175.2
153.6
135.0
119.1
105.3
93.47
83.22
74.14
111970
82616
61415
45989
34686
26344
20122
15511
12009
9378
7382
5856
4669
3750
3028
2461
2020
1680
1392
1161
977.6
826.9
698.0
592.4
506.5
434.7
373.9
322.7
280.1
244.0
213.7
187.7
165.0
145.4
128.5
113.9
101.4
90.44
80.75
5.4
5.1
4.7
4.4
4.1
3.8
3.5
3.2
2.9
2.6
2.4
2.1
1.9
1.7
1.5
1.3
1.0
1.2
1.4
1.6
1.8
2.0
2.1
2.3
2.5
2.6
2.8
2.9
3.1
3.2
3.3
3.4
3.6
3.7
3.8
3.9
4.0
4.2
4.3
0.9
0.8
0.8
0.8
0.7
0.7
0.7
0.6
0.6
0.5
0.5
0.5
0.4
0.4
0.4
0.3
0.3
0.3
0.4
0.5
0.5
0.6
0.6
0.7
0.8
0.9
0.9
1.0
1.1
1.2
1.2
1.3
1.4
1.5
1.6
1.6
1.7
1.8
1.9
α
(%/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
Please read
Important notes
and
Cautions and warnings
at the end of this document.
Page 4 of 32
Temperature measurement
Miniature sensors with bendable wires
B57867
S867
B57867S0202F140
R/T No.
T (°C)
140.0
145.0
150.0
155.0
1008
B
25/100
= 3560 K, R
25
= 2000
Ω,
T
R
= 25
°C, ∆R
R
/R
R
=
±
1%
R
nom
[Ω]
R
min
[Ω]
R
max
[Ω]
∆R
R
/R
R
[±%]
∆T[±°C]
69.23
66.20
72.26
4.4
2.0
62.10
55.82
50.39
59.32
53.26
48.03
64.88
58.37
52.74
4.5
4.6
4.7
2.1
2.2
2.3
α
(%/K)
2.2
2.1
2.1
2.0
B57867S0202H140
R/T No.
T (°C)
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
15.0
10.0
5.0
0.0
5.0
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
1008
B
25/100
= 3560 K, R
25
= 2000
Ω,
T
R
= 25
°C, ∆R
R
/R
R
=
±
3%
R
nom
[Ω]
R
min
[Ω]
R
max
[Ω]
∆R
R
/R
R
[±%]
∆T[±°C]
106210
78635
58650
44060
33333
25392
19450
15034
11671
9137
7210
5733
4581
3688
2984
2431
2000
1660
1373
1142
960.3
810.9
683.4
579.0
494.3
423.7
363.9
313.6
271.8
236.4
98317
73081
54713
41250
31313
23931
18389
14256
11099
8713
6894
5495
4402
3552
2881
2352
1940
1606
1326
1101
923.8
778.7
655.1
554.1
472.2
404.1
346.5
298.2
258.1
224.2
114100
84189
62588
46871
35352
26852
20511
15812
12242
9561
7526
5970
4761
3823
3087
2510
2060
1713
1420
1183
996.8
843.1
711.7
604.0
516.3
443.2
381.2
329.0
285.6
248.7
7.4
7.1
6.7
6.4
6.1
5.8
5.5
5.2
4.9
4.6
4.4
4.1
3.9
3.7
3.5
3.3
3.0
3.2
3.4
3.6
3.8
4.0
4.1
4.3
4.5
4.6
4.8
4.9
5.1
5.2
1.2
1.2
1.2
1.1
1.1
1.1
1.0
1.0
1.0
1.0
0.9
0.9
0.9
0.9
0.8
0.8
0.8
0.9
0.9
1.0
1.1
1.2
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
α
(%/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
Please read
Important notes
and
Cautions and warnings
at the end of this document.
Page 5 of 32
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