NTC thermistors for
temperature measurement
Leaded NTC thermistors,
lead spacing 5 mm
Series/Type:
Date:
B57164K
February 2009
© EPCOS AG 2009. Reproduction, publication and dissemination of this publication, enclosures hereto and the
information contained therein without EPCOS' prior express consent is prohibited.
Temperature measurement and compensation
Leaded NTC thermistors, lead spacing 5 mm
B57164K
K164
Applications
Temperature measurement and
compensation
Features
Wide resistance range
Cost-effective
Lacquer-coated thermistor disk
Tinned copper leads
Lead spacing 5 mm
Marked with resistance and tolerance
Delivery mode
Bulk (standard), cardboard tape, reeled or in
Ammo pack on request
Dimensional drawing
Dimensions in mm
Approx. weight 0.4 g
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)
55/125/21
450
±5, ±10
25
approx. 7.5
approx. 20
approx. 150
(in air)
(in air)
P
25
∆R
R
/R
R
T
R
δ
th
τ
c
C
th
mW
%
°C
mW/K
s
mJ/K
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 2 of 24
Temperature measurement and compensation
Leaded NTC thermistors, lead spacing 5 mm
B57164K
K164
Electrical specification and ordering codes
R
25
Ω
15
22
33
47
68
100
150
220
330
470
680
1k
1.5 k
2.2 k
3.3 k
4.7 k
6.8 k
10 k
15 k
22 k
33 k
47 k
68 k
100 k
150 k
220 k
330 k
470 k
+ = Resistance tolerance
J =
±5%
K =
±10%
No. of R/T
characteristic
1203
1203
1203
1302
1303
1305
1305
1305
1306
1306
1307
1011
1013
1013
4001
4001
2903
2904
1014
1012
1012
4003
2005
2005
2005
2007
2006
2006
B
25/100
K
2900
±3%
2900
±3%
2900
±3%
3000
±3%
3050
±3%
3200
±3%
3200
±3%
3200
±3%
3450
±3%
3450
±3%
3560
±3%
3730
±3%
3900
±3%
3900
±3%
3950
±3%
3950
±3%
4200
±3%
4300
±3%
4250
±3%
4300
±3%
4300
±3%
4450
±3%
4600
±3%
4600
±3%
4600
±3%
4830
±3%
5000
±3%
5000
±3%
Ordering code
B57164K0150+000
B57164K0220+000
B57164K0330+000
B57164K0470+000
B57164K0680+000
B57164K0101+000
B57164K0151+000
B57164K0221+000
B57164K0331+000
B57164K0471+000
B57164K0681+000
B57164K0102+000
B57164K0152+000
B57164K0222+000
B57164K0332+000
B57164K0472+000
B57164K0682+000
B57164K0103+000
B57164K0153+000
B57164K0223+000
B57164K0333+000
B57164K0473+000
B57164K0683+000
B57164K0104+000
B57164K0154+000
B57164K0224+000
B57164K0334+000
B57164K0474+000
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 3 of 24
Temperature measurement and compensation
Leaded NTC thermistors, lead spacing 5 mm
B57164K
K164
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
Endurance
Long-term stability
(empirical value)
Storage at upper
category temperature
T: 125
°C
t: 1000 h
IEC
Temperature of air: 40
°C
60068-2-78 Relative humidity of air: 93%
Duration: 21 days
IEC
Lower test temperature: 55
°C
60068-2-14 Upper test temperature: 125
°C
Number of cycles: 100
P
max
: 450 mW
t: 1000 h
Temperature: 70
°C
t: 10000 h
< 3%
No visible
damage
No visible
damage
No visible
damage
No visible
damage
< 3%
< 3%
< 5%
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 4 of 24
Temperature measurement and compensation
Leaded NTC thermistors, lead spacing 5 mm
B57164K
K164
R/T characteristics
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
1011
1012
1013
B
25/100
= 3730 K
B
25/100
= 4300 K
B
25/100
= 3900 K
R
T
/R
25
α
(%/K) R
T
/R
25
α
(%/K) R
T
/R
25
α
(%/K)
70.014
49.906
36.015
26.296
19.411
14.479
10.903
8.2923
6.3591
4.9204
3.8279
3.0029
2.3773
1.8959
1.5207
1.228
1.0000
0.81779
0.67341
0.55747
0.46357
0.3874
0.32368
0.272
0.23041
0.19604
0.16735
0.14342
0.12347
0.10668
0.092734
0.080903
0.070616
0.061826
0.054282
0.047793
0.042249
6.9
6.7
6.4
6.2
6.0
5.8
5.6
5.4
5.2
5.1
4.9
4.8
4.6
4.5
4.3
4.2
4.1
3.9
3.8
3.7
3.6
3.6
3.5
3.4
3.3
3.2
3.1
3.0
3.0
2.8
2.8
2.8
2.7
2.6
2.6
2.5
2.4
87.237
62.264
44.854
32.599
23.893
17.654
13.098
9.8059
7.4266
5.6677
4.3213
3.3208
2.5842
2.0238
1.5858
1.2507
1.0000
0.7964
0.64053
0.51772
0.41958
0.34172
0.27877
0.22861
0.18872
0.15645
0.13012
0.10863
0.091115
0.0767
0.064867
0.055047
0.046797
0.039904
0.034255
0.029498
0.025448
6.8
6.7
6.5
6.3
6.1
6.0
5.8
5.7
5.5
5.4
5.3
5.1
5.0
4.9
4.8
4.7
4.5
4.4
4.3
4.2
4.1
4.1
4.0
3.9
3.8
3.7
3.6
3.6
3.5
3.4
3.3
3.3
3.2
3.1
3.1
3.0
3.0
77.285
54.938
39.507
28.722
21.099
15.652
11.715
8.8541
6.7433
5.1815
4.0099
3.1283
2.4569
1.9438
1.5475
1.2403
1.0000
0.81104
0.66146
0.54254
0.44727
0.37067
0.30865
0.25825
0.21707
0.18323
0.15535
0.13223
0.11302
0.096951
0.083487
0.072139
0.062559
0.054425
0.047508
0.041594
0.036532
7.0
6.7
6.5
6.3
6.1
5.9
5.7
5.6
5.4
5.2
5.1
4.9
4.8
4.6
4.5
4.4
4.3
4.1
4.0
3.9
3.8
3.7
3.6
3.5
3.4
3.3
3.3
3.2
3.1
3.0
3.0
2.9
2.8
2.8
2.7
2.6
2.6
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 5 of 24
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