NTC thermistors for
temperature measurement
Miniature sensors,
lead spacing 2.5 mm
Series/Type:
B57962
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 and air conditioning systems
Industrial electronics
Automotive electronics
Features
Fast response
High measuring accuracy
Different tolerances available
Epoxy resin encapsulation
Improved resistance to humidity
Insulated leads of silver-plated nickel wire,
AWG 30 (black)
Lead spacing 2.5 mm
Options
Non-standard lead lengths
AWG 26 on request
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. 1.6
mW/K
Thermal cooling time constant
(in air)
c
approx. 16
s
Heat capacity
C
th
approx. 26
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%
2795
8016
3988
1%
B57962S0282+001
Temperature measurement
B57962
Leaded NTCs, lead spacing 2.5 mm
S962
Page 2 of 10
Please read Important notes and
Cautions and warnings at the end of this document.
Note
The type series S962 has a specially designed insulation (coating, wire coating) to withstand the
immersion test in water of 1000 h, 25
C. Therefore these sensors must be protected to avoid any
damage of the insulation material during handling and in the application.
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
< 2%
No visible
damage
Immersion test
Test voltage 2.7 VDC on NTC
over protective resistor, sensors
immersed into water, ambient
temperature (25
C), voltage
switched on 5 h switched off 1 h.
t: 1000 h
< 2%
No visible
damage
Long-term stability
(empirical value)
Temperature: 70
C
t: 10000 h
< 3%
No visible
damage
Temperature measurement
B57962
Leaded NTCs, lead spacing 2.5 mm
S962
Page 3 of 10
Please read Important notes and
Cautions and warnings at the end of this document.
R/T characteristics
B57962S0282F001
R/T No.
8016
T (
C)
B
25/100
= 3988 K, R
25
= 2795
, T
R
= 25
C,
R
R
/R
R
=
1%
R
nom
[
]
R
min
[
]
R
max
[
]
R
R
/R
R
[
%]
T[
C]
(%/K)
55.0
269170
253140
285200
6.0
0.8
7.4
50.0
187290
176910
197680
5.5
0.8
7.1
45.0
131840
125040
138630
5.2
0.7
6.9
40.0
94052
89557
98547
4.8
0.7
6.7
35.0
67804
64807
70801
4.4
0.7
6.4
30.0
49471
47455
51488
4.1
0.7
6.2
25.0
36438
35074
37803
3.7
0.6
6.0
20.0
27131
26201
28061
3.4
0.6
5.8
15.0
20384
19747
21020
3.1
0.6
5.6
10.0
15465
15027
15902
2.8
0.5
5.4
5.0
11827
11526
12128
2.5
0.5
5.3
0.0
9126
8918
9333
2.3
0.4
5.1
5.0
7096
6953
7239
2.0
0.4
5.0
10.0
5562
5464
5660
1.8
0.4
4.8
15.0
4390
4324
4457
1.5
0.3
4.7
20.0
3491
3446
3536
1.3
0.3
4.5
25.0
2795
2767
2823
1.0
0.2
4.4
30.0
2252
2223
2281
1.3
0.3
4.3
35.0
1826
1798
1853
1.5
0.4
4.1
40.0
1489
1464
1514
1.7
0.4
4.0
45.0
1221
1198
1244
1.9
0.5
3.9
50.0
1007
986.0
1028
2.1
0.5
3.8
55.0
834.6
815.7
853.6
2.3
0.6
3.7
60.0
695.4
678.3
712.5
2.5
0.7
3.6
65.0
582.2
566.9
597.5
2.6
0.8
3.5
70.0
489.7
476.0
503.4
2.8
0.8
3.4
75.0
414.0
401.7
426.3
3.0
0.9
3.3
80.0
351.6
340.6
362.6
3.1
1.0
3.2
85.0
299.7
289.9
309.6
3.3
1.0
3.2
90.0
256.5
247.7
265.3
3.4
1.1
3.1
95.0
220.4
212.5
228.3
3.6
1.2
3.0
100.0
190.1
183.0
197.2
3.7
1.3
2.9
105.0
164.5
158.1
170.9
3.9
1.4
2.9
110.0
142.9
137.1
148.6
4.0
1.4
2.8
115.0
124.5
119.3
129.7
4.2
1.5
2.7
120.0
108.8
104.2
113.5
4.3
1.6
2.7
125.0
95.51
91.29
99.72
4.4
1.7
2.6
130.0
84.10
80.29
87.91
4.5
1.8
2.5
135.0
74.19
70.74
77.64
4.7
1.9
2.5
Temperature measurement
B57962
Leaded NTCs, lead spacing 2.5 mm
S962
Page 4 of 10
Please read Important notes and
Cautions and warnings at the end of this document.
B57962S0282F001
R/T No.
8016
T (
C)
B
25/100
= 3988 K, R
25
= 2795
, T
R
= 25
C,
R
R
/R
R
=
1%
R
nom
[
]
R
min
[
]
R
max
[
]
R
R
/R
R
[
%]
T[
C]
(%/K)
140.0
65.63
62.49
68.76
4.8
2.0
2.4
145.0
58.23
55.38
61.07
4.9
2.1
2.4
150.0
51.79
49.20
54.38
5.0
2.2
2.3
155.0
46.21
43.85
48.58
5.1
2.3
2.3
B57962S0282H001
R/T No.
8016
T (
C)
B
25/100
= 3988 K, R
25
= 2795
, T
R
= 25
C,
R
R
/R
R
=
3%
R
nom
[
]
R
min
[
]
R
max
[
]
R
R
/R
R
[
%]
T[
C]
(%/K)
55.0
269170
247760
290590
8.0
1.1
7.4
50.0
187290
173160
201430
7.5
1.1
7.1
45.0
131840
122410
141270
7.2
1.0
6.9
40.0
94052
87676
100430
6.8
1.0
6.7
35.0
67804
63451
72157
6.4
1.0
6.4
30.0
49471
46466
52477
6.1
1.0
6.2
25.0
36438
34345
38532
5.7
1.0
6.0
20.0
27131
25658
28604
5.4
0.9
5.8
15.0
20384
19340
21428
5.1
0.9
5.6
10.0
15465
14718
16212
4.8
0.9
5.4
5.0
11827
11289
12365
4.5
0.9
5.3
0.0
9126
8736
9516
4.3
0.8
5.1
5.0
7096
6811
7380
4.0
0.8
5.0
10.0
5562
5353
5771
3.8
0.8
4.8
15.0
4390
4236
4545
3.5
0.8
4.7
20.0
3491
3377
3605
3.3
0.7
4.5
25.0
2795
2711
2879
3.0
0.7
4.4
30.0
2252
2178
2326
3.3
0.8
4.3
35.0
1826
1762
1889
3.5
0.8
4.1
40.0
1489
1434
1544
3.7
0.9
4.0
45.0
1221
1174
1269
3.9
1.0
3.9
50.0
1007
965.9
1048
4.1
1.1
3.8
55.0
834.6
799.0
870.3
4.3
1.2
3.7
60.0
695.4
664.4
726.4
4.5
1.2
3.6
65.0
582.2
555.2
609.2
4.6
1.3
3.5
70.0
489.7
466.2
513.2
4.8
1.4
3.4
75.0
414.0
393.5
434.6
5.0
1.5
3.3
80.0
351.6
333.6
369.7
5.1
1.6
3.2
85.0
299.7
283.9
315.6
5.3
1.7
3.2
90.0
256.5
242.5
270.5
5.4
1.8
3.1
Temperature measurement
B57962
Leaded NTCs, lead spacing 2.5 mm
S962
Page 5 of 10
Please read Important notes and
Cautions and warnings at the end of this document.
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