NTC thermistors for
temperature measurement
Miniature sensors
with bendable wires
Series/Type:
B57862
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
Improved resistance to humidity
Fast response
High measuring accuracy
Different tolerances available
Epoxy resin encapsulation
Insulated leads of silver-plated
nickel wire, AWG 30
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. 1.7
mW/K
Thermal cooling time constant
(in air)
c
approx. 21
s
Heat capacity
C
th
approx. 36
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%
2.8 k
8016
3988
1%
B57862S0282+040
5 k
8016
3988
1%
B57862S0502+040
10 k
8016
3988
1%
B57862S0103+040
Temperature measurement
B57862
Miniature sensors with bendable wires
S862
Page 2 of 17
Please read Important notes and
Cautions and warnings at the end of this document.
Note
The type series S862 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
< 1%
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
< 2%
No visible
damage
Temperature measurement
B57862
Miniature sensors with bendable wires
S862
Page 3 of 17
Please read Important notes and
Cautions and warnings at the end of this document.
R/T characteristics
B57862S0282F040
R/T No.
8016
T (
C)
B
25/100
= 3988 K, R
25
= 2800
, T
R
= 25
C,
R
R
/R
R
=
1%
R
nom
[
]
R
min
[
]
R
max
[
]
R
R
/R
R
[
%]
T[
C]
(%/K)
55.0
269650
253600
285710
6.0
0.8
7.4
50.0
187630
177220
198030
5.5
0.8
7.1
45.0
132070
125270
138880
5.2
0.7
6.9
40.0
94220
89717
98723
4.8
0.7
6.7
35.0
67925
64923
70927
4.4
0.7
6.4
30.0
49560
47540
51580
4.1
0.7
6.2
25.0
36504
35136
37871
3.7
0.6
6.0
20.0
27180
26248
28111
3.4
0.6
5.8
15.0
20420
19783
21058
3.1
0.6
5.6
10.0
15492
15054
15931
2.8
0.5
5.4
5.0
11848
11546
12150
2.5
0.5
5.3
0.0
9142
8934
9350
2.3
0.4
5.1
5.0
7109
6966
7252
2.0
0.4
5.0
10.0
5572
5474
5670
1.8
0.4
4.8
15.0
4398
4332
4465
1.5
0.3
4.7
20.0
3497
3453
3542
1.3
0.3
4.5
25.0
2800
2772
2828
1.0
0.2
4.4
30.0
2256
2227
2285
1.3
0.3
4.3
35.0
1829
1802
1856
1.5
0.4
4.1
40.0
1492
1466
1517
1.7
0.4
4.0
45.0
1223
1200
1246
1.9
0.5
3.9
50.0
1009
987.8
1030
2.1
0.5
3.8
55.0
836.1
817.1
855.1
2.3
0.6
3.7
60.0
696.6
679.5
713.7
2.5
0.7
3.6
65.0
583.3
567.9
598.6
2.6
0.8
3.5
70.0
490.6
476.8
504.3
2.8
0.8
3.4
75.0
414.8
402.5
427.1
3.0
0.9
3.3
80.0
352.2
341.2
363.3
3.1
1.0
3.2
85.0
300.3
290.4
310.1
3.3
1.0
3.2
90.0
257.0
248.1
265.8
3.4
1.1
3.1
95.0
220.8
212.9
228.7
3.6
1.2
3.0
100.0
190.4
183.3
197.5
3.7
1.3
2.9
105.0
164.8
158.4
171.2
3.9
1.4
2.9
110.0
143.1
137.4
148.9
4.0
1.4
2.8
115.0
124.7
119.5
129.9
4.2
1.5
2.7
120.0
109.0
104.3
113.7
4.3
1.6
2.7
125.0
95.68
91.46
99.89
4.4
1.7
2.6
130.0
84.25
80.43
88.07
4.5
1.8
2.5
135.0
74.32
70.86
77.78
4.7
1.9
2.5
Temperature measurement
B57862
Miniature sensors with bendable wires
S862
Page 4 of 17
Please read Important notes and
Cautions and warnings at the end of this document.
B57862S0282F040
R/T No.
8016
T (
C)
B
25/100
= 3988 K, R
25
= 2800
, T
R
= 25
C,
R
R
/R
R
=
1%
R
nom
[
]
R
min
[
]
R
max
[
]
R
R
/R
R
[
%]
T[
C]
(%/K)
140.0
65.74
62.61
68.88
4.8
2.0
2.4
145.0
58.33
55.48
61.18
4.9
2.1
2.4
150.0
51.88
49.29
54.48
5.0
2.2
2.3
155.0
46.30
43.93
48.66
5.1
2.3
2.3
B57862S0282H040
R/T No.
8016
T (
C)
B
25/100
= 3988 K, R
25
= 2800
, T
R
= 25
C,
R
R
/R
R
=
3%
R
nom
[
]
R
min
[
]
R
max
[
]
R
R
/R
R
[
%]
T[
C]
(%/K)
55.0
269650
248200
291110
8.0
1.1
7.4
50.0
187630
173470
201790
7.5
1.1
7.1
45.0
132070
122620
141520
7.2
1.0
6.9
40.0
94220
87833
100610
6.8
1.0
6.7
35.0
67925
63564
72286
6.4
1.0
6.4
30.0
49560
46549
52571
6.1
1.0
6.2
25.0
36504
34406
38601
5.7
1.0
6.0
20.0
27180
25704
28655
5.4
0.9
5.8
15.0
20420
19374
21466
5.1
0.9
5.6
10.0
15492
14744
16241
4.8
0.9
5.4
5.0
11848
11310
12387
4.5
0.9
5.3
0.0
9142
8751
9533
4.3
0.8
5.1
5.0
7109
6823
7394
4.0
0.8
5.0
10.0
5572
5363
5781
3.8
0.8
4.8
15.0
4398
4244
4553
3.5
0.8
4.7
20.0
3497
3383
3612
3.3
0.7
4.5
25.0
2800
2716
2884
3.0
0.7
4.4
30.0
2256
2182
2330
3.3
0.8
4.3
35.0
1829
1765
1892
3.5
0.8
4.1
40.0
1492
1437
1547
3.7
0.9
4.0
45.0
1223
1176
1271
3.9
1.0
3.9
50.0
1009
967.6
1050
4.1
1.1
3.8
55.0
836.1
800.4
871.9
4.3
1.2
3.7
60.0
696.6
665.6
727.7
4.5
1.2
3.6
65.0
583.3
556.2
610.3
4.6
1.3
3.5
70.0
490.6
467.0
514.1
4.8
1.4
3.4
75.0
414.8
394.2
435.4
5.0
1.5
3.3
80.0
352.2
334.2
370.3
5.1
1.6
3.2
85.0
300.3
284.4
316.1
5.3
1.7
3.2
90.0
257.0
243.0
270.9
5.4
1.8
3.1
Temperature measurement
B57862
Miniature sensors with bendable wires
S862
Page 5 of 17
Please read Important notes and
Cautions and warnings at the end of this document.
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