NTC thermistors for
temperature measurement
Miniature sensors
with bendable wires
Series/Type:
Date:
B57862
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
B57862
S862
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
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. 1.7
approx. 21
approx. 36
mW
%
°C
mW/K
s
mJ/K
Electrical specification and ordering codes
R
25
Ω
2.8 k
5k
10 k
+ = Resistance tolerance
F =
±1%
H =
±3%
J =
±5%
No. of R/T
characteristic
8016
8016
8016
B
25/100
K
3988
±1%
3988
±1%
3988
±1%
Ordering code
B57862S0282+040
B57862S0502+040
B57862S0103+040
Please read
Important notes
and
Cautions and warnings
at the end of this document.
Page 2 of 17
Temperature measurement
Miniature sensors with bendable wires
B57862
S862
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
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
Immersion test
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
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
Temperature: 70
°C
t: 10000 h
< 1%
No visible
damage
No visible
damage
No visible
damage
< 1%
< 2%
< 2%
No visible
damage
Please read
Important notes
and
Cautions and warnings
at the end of this document.
Page 3 of 17
Temperature measurement
Miniature sensors with bendable wires
B57862
S862
R/T characteristics
B57862S0282F040
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
8016
B
25/100
= 3988 K, R
25
= 2800
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]
269650
187630
132070
94220
67925
49560
36504
27180
20420
15492
11848
9142
7109
5572
4398
3497
2800
2256
1829
1492
1223
1009
836.1
696.6
583.3
490.6
414.8
352.2
300.3
257.0
220.8
190.4
164.8
143.1
124.7
109.0
95.68
84.25
74.32
253600
177220
125270
89717
64923
47540
35136
26248
19783
15054
11546
8934
6966
5474
4332
3453
2772
2227
1802
1466
1200
987.8
817.1
679.5
567.9
476.8
402.5
341.2
290.4
248.1
212.9
183.3
158.4
137.4
119.5
104.3
91.46
80.43
70.86
285710
198030
138880
98723
70927
51580
37871
28111
21058
15931
12150
9350
7252
5670
4465
3542
2828
2285
1856
1517
1246
1030
855.1
713.7
598.6
504.3
427.1
363.3
310.1
265.8
228.7
197.5
171.2
148.9
129.9
113.7
99.89
88.07
77.78
6.0
5.5
5.2
4.8
4.4
4.1
3.7
3.4
3.1
2.8
2.5
2.3
2.0
1.8
1.5
1.3
1.0
1.3
1.5
1.7
1.9
2.1
2.3
2.5
2.6
2.8
3.0
3.1
3.3
3.4
3.6
3.7
3.9
4.0
4.2
4.3
4.4
4.5
4.7
0.8
0.8
0.7
0.7
0.7
0.7
0.6
0.6
0.6
0.5
0.5
0.4
0.4
0.4
0.3
0.3
0.2
0.3
0.4
0.4
0.5
0.5
0.6
0.7
0.8
0.8
0.9
1.0
1.0
1.1
1.2
1.3
1.4
1.4
1.5
1.6
1.7
1.8
1.9
α
(%/K)
7.4
7.1
6.9
6.7
6.4
6.2
6.0
5.8
5.6
5.4
5.3
5.1
5.0
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
3.2
3.1
3.0
2.9
2.9
2.8
2.7
2.7
2.6
2.5
2.5
Please read
Important notes
and
Cautions and warnings
at the end of this document.
Page 4 of 17
Temperature measurement
Miniature sensors with bendable wires
B57862
S862
B57862S0282F040
R/T No.
T (°C)
140.0
145.0
150.0
155.0
8016
B
25/100
= 3988 K, R
25
= 2800
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]
65.74
62.61
68.88
4.8
2.0
58.33
51.88
46.30
55.48
49.29
43.93
61.18
54.48
48.66
4.9
5.0
5.1
2.1
2.2
2.3
α
(%/K)
2.4
2.4
2.3
2.3
B57862S0282H040
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
8016
B
25/100
= 3988 K, R
25
= 2800
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]
269650
187630
132070
94220
67925
49560
36504
27180
20420
15492
11848
9142
7109
5572
4398
3497
2800
2256
1829
1492
1223
1009
836.1
696.6
583.3
490.6
414.8
352.2
300.3
257.0
248200
173470
122620
87833
63564
46549
34406
25704
19374
14744
11310
8751
6823
5363
4244
3383
2716
2182
1765
1437
1176
967.6
800.4
665.6
556.2
467.0
394.2
334.2
284.4
243.0
291110
201790
141520
100610
72286
52571
38601
28655
21466
16241
12387
9533
7394
5781
4553
3612
2884
2330
1892
1547
1271
1050
871.9
727.7
610.3
514.1
435.4
370.3
316.1
270.9
8.0
7.5
7.2
6.8
6.4
6.1
5.7
5.4
5.1
4.8
4.5
4.3
4.0
3.8
3.5
3.3
3.0
3.3
3.5
3.7
3.9
4.1
4.3
4.5
4.6
4.8
5.0
5.1
5.3
5.4
1.1
1.1
1.0
1.0
1.0
1.0
1.0
0.9
0.9
0.9
0.9
0.8
0.8
0.8
0.8
0.7
0.7
0.8
0.8
0.9
1.0
1.1
1.2
1.2
1.3
1.4
1.5
1.6
1.7
1.8
α
(%/K)
7.4
7.1
6.9
6.7
6.4
6.2
6.0
5.8
5.6
5.4
5.3
5.1
5.0
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
3.2
3.1
Please read
Important notes
and
Cautions and warnings
at the end of this document.
Page 5 of 17
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