NTC thermistors for
temperature measurement
Glass-encapsulated sensors,
standard type
Series/Type:
Date:
B57540
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
Glass-encapsulated sensors
B57540
G540
Applications
Automotive electronics
Industrial electronics
Home appliances
Features
Glass-encapsulated, heat-resistive and
highly stable
For temperature measurement up to 250
°C
Fast response
Small dimensions
Leads: dumet wires (copper-clad FeNi)
Options
Leads: nickel-plated dumet wires.
Alternative dimensions available on request.
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
(in air)
(in air)
P
25
∆R
R
/R
R
T
R
δ
th
τ
c
C
th
55/250/56
18
±1, ±2, ±3, ±5
25
approx. 0.4
approx. 3
approx. 1.3
mW
%
°C
mW/K
s
mJ/K
Please read
Important notes
and
Cautions and warnings
at the end of this document.
Page 2 of 60
Temperature measurement
Glass-encapsulated sensors
B57540
G540
Electrical specification and ordering codes
R
25
Ω
5k
10 k
20 k
30 k
50 k
100 k
230 k
1400 k
No. of R/T
characteristic
8402
8407
8415
8415
8403
8404
8405
8406
B
25/85
K
3480
3480
3992
3992
3992
4066
4240
4557
B
0/100
K
3450
±1%
3450
±1%
3970
±1%
3970
±1%
3970
±1%
4036
±1%
4537
±2
1)
%
5133
±2
2)
%
*=
B
25/100
K
3497
3497
4006
4006
4006
4085
4264
4581
Ordering code
B57540G0502+00*
B57540G0103+00*
B57540G0203+00*
B57540G0303+00*
B57540G0503+00*
B57540G0104+00*
B57540G0234+00*
B57540G0145+00*
+ = Resistance tolerance
F =
±1%
G =
±2%
H =
±3%
J =
±5%
Leads
0 = dumet wires
2 = nickel-plated wires
Reliability data
Test
Storage in
dry heat
Standard
IEC
60068-2-2
Test conditions
∆R
25
/R
25
(typical)
< 3%
Remarks
No visible
damage
Storage in damp
heat, steady state
Rapid temperature
cycling
Storage at upper
category temperature
T: 250
°C
t: 1000 h
IEC
Temperature of air: 85
°C
60068-2-67 Relative humidity of air: 85%
Duration: 56 days
IEC
Lower test temperature: 55
°C
60068-2-14 Upper test temperature: 200
°C
Number of cycles: 1000
< 2%
No visible
damage
No visible
damage
< 2%
1) B
100/200
2) B
200/300
Please read
Important notes
and
Cautions and warnings
at the end of this document.
Page 3 of 60
Temperature measurement
Glass-encapsulated sensors
B57540
G540
R/T characteristics
B57540G0502F000
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
8402
B
0/100
= 3450 K, R
25
= 5000
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]
259960
189950
140350
104800
79044
60186
46242
35834
27996
22043
17485
13968
11234
9094
7407
6068
5000
4142
3450
2887
2428
2051
1741
1484
1270
1091
940.8
814.4
707.5
616.8
539.4
473.3
416.6
367.7
325.6
289.0
257.3
229.7
205.5
245980
180440
133820
100280
75892
57972
44678
34724
27205
21478
17080
13678
11027
8946
7302
5995
4950
4093
3402
2842
2386
2012
1705
1450
1239
1063
915.5
791.3
686.5
597.5
521.9
457.3
402.0
354.4
313.4
277.9
247.1
220.3
196.9
273940
199450
146880
109320
82196
62400
47806
36945
28788
22609
17890
14258
11441
9241
7511
6141
5050
4192
3497
2932
2470
2090
1777
1517
1300
1119
966.2
837.5
728.6
636.0
556.9
489.3
431.2
381.1
337.8
300.2
267.6
239.1
214.2
5.4
5.0
4.7
4.3
4.0
3.7
3.4
3.1
2.8
2.6
2.3
2.1
1.8
1.6
1.4
1.2
1.0
1.2
1.4
1.6
1.7
1.9
2.1
2.2
2.4
2.5
2.7
2.8
3.0
3.1
3.2
3.4
3.5
3.6
3.7
3.9
4.0
4.1
4.2
0.8
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
0.3
0.3
0.3
0.3
0.4
0.4
0.5
0.6
0.6
0.7
0.8
0.8
0.9
1.0
1.1
1.1
1.2
1.3
1.4
1.5
1.6
1.6
1.7
1.8
1.9
α
(%/K)
6.4
6.2
5.9
5.7
5.5
5.4
5.2
5.0
4.9
4.7
4.6
4.4
4.3
4.2
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
2.8
2.8
2.7
2.6
2.6
2.5
2.5
2.4
2.4
2.3
2.2
2.2
Please read
Important notes
and
Cautions and warnings
at the end of this document.
Page 4 of 60
Temperature measurement
Glass-encapsulated sensors
B57540
G540
B57540G0502F000
R/T No.
T (°C)
140.0
145.0
150.0
155.0
160.0
165.0
170.0
175.0
180.0
185.0
190.0
195.0
200.0
205.0
210.0
215.0
220.0
225.0
230.0
235.0
240.0
245.0
250.0
8402
B
0/100
= 3450 K, R
25
= 5000
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]
184.4
176.4
192.3
4.3
2.0
165.8
149.4
135.0
122.2
110.9
100.8
91.82
83.81
76.64
70.21
64.44
59.25
54.56
50.33
46.51
43.04
39.89
37.02
34.42
32.04
29.86
27.88
158.5
142.7
128.8
116.5
105.5
95.86
87.24
79.55
72.68
66.53
61.00
56.04
51.56
47.53
43.88
40.57
37.57
34.85
32.37
30.11
28.05
26.16
173.1
156.2
141.2
128.0
116.2
105.7
96.40
88.06
80.60
73.90
67.88
62.46
57.56
53.14
49.14
45.50
42.20
39.20
36.46
33.97
31.68
29.59
4.4
4.5
4.6
4.7
4.8
4.9
5.0
5.1
5.2
5.3
5.3
5.4
5.5
5.6
5.7
5.7
5.8
5.9
5.9
6.0
6.1
6.2
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
3.0
3.1
3.3
3.4
3.5
3.6
3.7
3.9
4.0
4.1
4.2
4.4
4.5
α
(%/K)
2.1
2.1
2.1
2.0
2.0
1.9
1.9
1.8
1.8
1.8
1.7
1.7
1.7
1.6
1.6
1.6
1.5
1.5
1.5
1.4
1.4
1.4
1.4
B57540G0502G000
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
8402
B
0/100
= 3450 K, R
25
= 5000
Ω,
T
R
= 25
°C, ∆R
R
/R
R
=
±
2%
R
nom
[Ω]
R
min
[Ω]
R
max
[Ω]
∆R
R
/R
R
[±%]
∆T[±°C]
259960
189950
140350
104800
79044
60186
46242
35834
27996
22043
17485
243260
178460
132370
99201
75078
57354
44204
34358
26920
21254
16903
276650
201430
148330
110400
83010
63018
48279
37310
29073
22833
18067
6.4
6.0
5.7
5.3
5.0
4.7
4.4
4.1
3.8
3.6
3.3
1.0
1.0
1.0
0.9
0.9
0.9
0.8
0.8
0.8
0.8
0.7
α
(%/K)
6.4
6.2
5.9
5.7
5.5
5.4
5.2
5.0
4.9
4.7
4.6
Please read
Important notes
and
Cautions and warnings
at the end of this document.
Page 5 of 60
京公网安备 11010802033920号
EEWORLD
