NTC Thermistors, Accuracy Line
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Document Number: 29048
64
Revision: 15-Jun-04
2322 640 5....
Vishay BCcomponents
FEATURES
Accurate over a wide temperature range (tolerance on
B-value between 2.5% and 0.5%)
Good stability over a long life
Excellent price/performance ratio
Flexible leads
Low heat conductivity through 0.4 mm diameter Ni-leads
APPLICATIONS
Temperature sensing and control.
These thermistors have a negative temperature coefficient.
The device consists of a chip with two tinned nickel leads and
is colour coded.
PACKAGING
The thermistors are packed in cardboard boxes; the smallest
packing quantity is 500 units.
QUICK REFERENCE DATA
Notes
1. Response time in silicone oil MS200/50. This is the time needed
for the sensor to reach 63.2% of the total temperature difference
when subjected to a temperature change from 25
C in air to
85
C in oil.
2. Valid for all types with the exception of 2322 640 5.474.
PARAMETER
VALUE
Resistance value at 25
C
2 to 470 k
Tolerance on R
25
-value
5%;
3%;
2%;
1%
Tolerance on B
25/85
-value
2.5 to 0.5%
Maximum dissipation
100 mW
Dissipation factor
2.2 mW/K
Response time; note 1
1.7 s
Thermal time constant
13 s
Operating temperature range at:
zero dissipation (continuously)
-
40 to +125
C
zero dissipation (for short
150
C
maximum dissipation (100 mW)
0 to +55
C
Climatic category
40/125/56
Mass
0.11 g
MARKING
The thermistors are marked with coloured bands; see
Dimentions and "Electrical data and ordering information"
MOUNTING
By soldering in any position.
Notes
1. Extended range available on request.
2. Thermistors have a 12-digit catalog number starting with 2322 640 5; the next digit indicates the tolerance and the last 3 digits indicate the
resistance value.
R
25
(k
)
B
25/85
-VALUE
CATALOG NUMBER 2322 640 5....
CODING
(see dimensions)
R
25
5%
R
25
3%
R
25
2%
R
25
1%
I
II
2
3528 K
0.5%
3202
6202
4202
5202
orange
orange
2.7
3977 K
0.75%
3272
6272
4272
5272
red
red
4.7
3977 K
0.75%
3472
6472
4472
5472
green
green
5
3977 K
0.75%
3502
6502
4502
5502
black
white
10
3977 K
0.75%
3103
6103
4103
5103
blue
blue
12
3740 K
2%
3123
6123
4123
-
yellow
yellow
22
3740 K
2%
3223
6223
4223
-
white
white
47
4090 K
1.5%
3473
6473
4473
-
black
black
68
4190 K
1.5%
3683
6683
4683
-
grey
grey
100
4190 K
1.5%
3104
6104
4104
5104
brown
brown
470
4570 K
1.5%
3474
6474
4474
-
violet
violet
ELECTRICAL DATA AND ORDERING INFORMATION
Document Number: 29048
For technical questions contact: nlr.europe@vishay.com
www.vishay.com
Revision: 15-Jun-04
65
2322 640 5....
NTC Thermistors, Accuracy Line
Vishay BCcomponents
DERATING AND LONG TERM STABILITY
Power derating curve.
0
55
40
85
125
T ( C)
o
100
0
P
(%)
amb
0.4
0.2
0
0.2
10
4
10
3
10
2
R 25
R25
(%)
test duration (h)
3
2
1
Curves valid for 2.2 to 10 k.
Curve 1: maximum deviation.
Curve 2: average deviation.
Curve 3: minimum deviation.
LONG TERM STABILITY OF R
25
AS A
FUNCTION OF TEST DURATION AT
MAXIMUM TEMPERATURE (150 C).
0.05
0
0.05
0.1
10
4
10
3
10
2
test duration (h)
3
2
1
T
(K)
Curves valid for 2.2 to 10 k.
Curve 1: minimum deviation.
Curve 2: average deviation.
Curve 3: maximum deviation.
LONG TERM STABILITY OF T AS A
FUNCTION OF TEST DURATION AT
MAXIMUM TEMPERATURE (150 C).
DIMENSIONS
in millimeters
6.0 max
40
1.5
3.4 max.
3
max.
0.04
I
II
I
II
2.54
2 1.0
RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES WITH R
25
AT 2 K
T
oper
(
C)
R
T
/R
25
R DUE TO
B-TOLERANCE
(%)
TC
(%/K)
R
25
2322 640 .....;
see
note 1
5.202
-
40
23.3402
1.65
-
6.06
46684
-
35
17.3347
1.49
-
5.84
34672
-
30
13.0166
1.34
-
5.62
26035
-
25
9.8764
1.19
-
5.42
19754
-
20
7.5682
1.05
-
5.23
15138
-
15
5.8541
0.92
-
5.05
11709
-
10
4.5688
0.79
-
4.87
9138
-
5
3.5961
0.66
-
4.71
7193
0
2.8533
0.54
-
4.55
5707
5
2.2815
0.43
-
4.40
4563
10
1.8376
0.31
-
4.26
3675
15
1.4904
0.21
-
4.12
2981
20
1.2169
0.10
-
3.99
2434
25
1.0000
0.00
-
3.87
2000
30
0.8266
0.10
-
3.75
1653
35
0.6873
0.19
-
3.63
1375
40
0.5746
0.28
-
3.53
1149
45
0.4827
0.37
-
3.42
965.0
www.vishay.com
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Document Number: 29048
66
Revision: 15-Jun-04
2322 640 5....
Vishay BCcomponents
NTC Thermistors, Accuracy Line
50
0.4073
0.46
-
3.32
814.7
55
0.3452
0.54
-
3.23
690.5
60
0.2937
0.62
-
3.14
587.5
65
0.2508
0.70
-
3.05
501.7
70
0.2149
0.78
-
2.97
429.8
75
0.1847
0.85
-
2.89
369.5
80
0.1593
0.92
-
2.81
318.6
85
0.1377
0.99
-
2.73
275.5
90
0.1194
1.06
-
2.66
238.9
95
0.1038
1.13
-
2.59
207.6
100
0.09045
1.19
-
2.53
180.9
105
0.07900
1.25
-
2.46
158.0
110
0.06915
1.31
-
2.40
138.3
115
0.06066
1.37
-2.34
121.3
120
0.05332
1.43
-2.29
106.6
125
0.04696
1.49
-2.23
93.9
130
0.04143
1.54
-2.18
82.9
135
0.03662
1.60
-2.13
73.3
140
0.03243
1.65
-2.08
64.9
145
0.02877
1.70
-2.03
57.5
150
0.02556
1.75
-2.33
51.1
T
oper
(C)
R
T
/R
25
R DUE TO
B-TOLERANCE
(%)
TC
(%/K)
R
25
2322 640 .....; see note 1
5.202
RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES WITH R
25
AT 2.7 K , 4.7 K , 5 K & 10 K
T
oper
(C)
R
T
/R
25
R DUE TO
B-TOLERANCE
(%)
TC
(%/K)
R
25
2322 640 .....; see note 1
5.272
5.472
5.502
5.103
-40
33.21
2.66
6.57
89.67
156.1
166.1
332.1
-35
23.99
2.41
6.36
64.77
112.8
120.0
240.0
-30
17.52
2.17
6.15
47.31
82.35
87.60
175.2
-25
12.93
1.94
5.95
34.91
60.77
64.65
129.3
-20
9.636
1.71
5.76
26.02
45.30
48.18
96.36
-15
7.250
1.50
5.58
19.58
34.08
36.25
72.50
-10
5.505
1.29
5.40
14.86
25.87
27.52
55.05
-5
4.216
1.08
5.24
11.38
19.81
21.08
42.16
0
3.255
0.89
5.08
8.790
15.30
16.28
32.56
5
2.534
0.70
4.92
6.842
11.91
12.67
25.34
10
1.987
0.52
4.78
5.366
9.340
9.936
19.87
15
1.570
0.34
4.64
4.239
7.378
7.849
15.70
20
1.249
0.17
4.50
3.372
5.869
6.244
12.49
25
1.000
0.00
4.37
2.700
4.700
5.000
10.00
30
0.8059
0.16
4.25
2.176
3.788
4.030
8.059
35
0.6535
0.32
4.13
1.764
3.072
3.267
6.535
40
0.5330
0.47
4.02
1.439
2.505
2.665
5.330
45
0.4372
0.62
3.91
1.180
2.055
2.186
4.372
50
0.3605
0.77
3.80
0.973
1.694
1.803
3.606
55
0.2989
0.91
3.70
0.807
1.405
1.494
2.989
60
0.2490
1.05
3.60
0.672
1.170
1.245
2.490
65
0.2084
1.18
3.51
0.562
0.9797
1.042
2.084
70
0.1753
1.31
3.42
0.473
0.8239
0.8765
1.753
75
0.1481
1.44
3.33
0.399
0.6960
0.7405
1.481
80
0.1256
1.57
3.25
0.339
0.5905
0.6282
1.256
85
0.1070
1.69
3.16
0.289
0.5031
0.5352
1.070
90
0.09154
1.81
3.09
0.247
0.4303
0.4577
0.9154
95
0.07860
1.93
3.01
0.212
0.3694
0.3930
0.7860
100
0.06773
2.04
2.94
0.182
0.3183
0.3387
0.6773
105
0.05858
2.15
2.87
0.158
0.2753
0.2929
0.5858
110
0.05083
2.26
2.80
0.137
0.2389
0.2542
0.5083
Document Number: 29048
For technical questions contact: nlr.europe@vishay.com
www.vishay.com
Revision: 15-Jun-04
67
2322 640 5....
NTC Thermistors, Accuracy Line
Vishay BCcomponents
115
0.04426
2.37
2.73
0.1195
0.2080
0.2213
0.4426
120
0.03866
2.47
2.67
0.1044
0.1817
0.1933
0.3866
125
0.03387
2.57
2.61
0.0915
0.1592
0.1694
0.3387
130
0.02977
2.67
2.55
0.0804
0.1399
0.1488
0.2977
135
0.02624
2.77
2.49
0.0709
0.1233
0.1312
0.2624
140
0.02319
2.86
2.43
0.0626
0.1090
0.1160
0.2319
145
0.02055
2.96
2.38
0.0555
0.0966
0.1028
0.2055
150
0.01826
3.05
2.33
0.0493
0.0858
0.0913
0.1826
T
oper
(C)
R
T
/R
25
R DUE TO
B-TOLERANCE
(%)
TC
(%/K)
R
25
2322 640 .....; see note 1
5.272
5.472
5.502
5.103
RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES WITH R
25
AT 12 K AND 22 K
T
amb
(C)
R
T
/R
25
R DUE TO
B-TOLERANCE
(%)
TC
(%/K)
R
25
2322 640 .....; see note 1
5.123
5.223
-40
25.78
6.81
6.09
309.4
567.2
-35
19.13
6.16
5.89
229.5
420.8
-30
14.32
5.53
5.70
171.8
315.0
-25
10.82
4.93
5.52
129.8
238.0
-20
8.245
4.35
5.35
98.93
181.4
-15
6.335
3.80
5.19
76.02
139.4
-10
4.907
3.26
5.03
58.88
107.9
-5
3.830
2.74
4.88
45.95
84.25
0
3.011
2.24
4.73
36.13
66.24
5
2.384
1.76
4.60
28.60
52.45
10
1.900
1.30
4.46
22.80
41.81
15
1.525
0.85
4.34
18.30
33.55
20
1.231
0.42
4.21
14.77
27.09
25
1.000
0.00
4.10
12.00
22.00
30
0.8170
0.41
3.98
9.804
17.97
35
0.6712
0.80
3.88
8.054
14.77
40
0.5543
1.19
3.77
6.652
12.20
45
0.4602
1.57
3.67
5.522
10.12
50
0.3839
1.94
3.57
4.607
8.447
55
0.3219
2.30
3.48
3.862
7.081
60
0.2710
2.65
3.39
3.252
5.963
65
0.2293
2.99
3.30
2.751
5.044
70
0.1947
3.33
3.22
2.337
4.284
75
0.1661
3.66
3.14
1.993
3.654
80
0.1422
3.98
3.06
1.707
3.129
85
0.1223
4.29
2.99
1.467
2.690
90
0.1055
4.60
2.92
1.266
2.321
95
0.09135
4.90
2.85
1.096
2.010
100
0.07937
5.19
2.78
0.9524
1.746
105
0.06919
5.48
2.71
0.8302
1.522
110
0.06050
5.76
2.65
0.7260
1.331
115
0.05307
6.04
2.59
0.6369
1.168
120
0.04670
6.31
2.53
0.5604
1.027
125
0.04121
6.57
2.47
0.4945
0.9065
RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES WITH R
25
AT 47 K
T
amb
(C)
R
T
/R
25
R DUE TO
B-TOLERANCE
(%)
TC
(%/K)
R
25
2322 640 .....; see note 1
5.473
-40
33.81
5.55
6.55
1589
-35
24.50
5.02
6.34
1151
-30
17.93
4.52
6.15
842.8
-25
13.25
4.03
5.96
622.6
www.vishay.com
For technical questions contact: nlr.europe@vishay.com
Document Number: 29048
68
Revision: 15-Jun-04
2322 640 5....
Vishay BCcomponents
NTC Thermistors, Accuracy Line
-20
9.875
3.56
5.78
464.1
-15
7.425
3.10
5.61
349.0
-10
5.630
2.67
5.45
264.6
-5
4.304
2.24
5.29
202.3
0
3.315
1.84
5.14
155.8
5
2.573
1.44
4.99
120.9
10
2.011
1.07
4.85
94.53
15
1.583
0.70
4.72
74.40
20
1.254
0.34
4.59
58.95
25
1.000
0.00
4.46
47.00
30
0.8024
0.33
4.34
37.71
35
0.6474
0.66
4.23
30.43
40
0.5255
0.98
4.12
24.70
45
0.4288
1.28
4.01
20.15
50
0.3518
1.59
3.91
16.53
55
0.2901
1.88
3.81
13.63
60
0.2403
2.17
3.71
11.30
65
0.2001
2.45
3.62
9.404
70
0.1674
2.72
3.53
7.865
75
0.1406
2.99
3.44
6.607
80
0.1186
3.25
3.36
5.573
85
0.1004
3.51
3.28
4.721
90
0.08542
3.76
3.20
4.015
95
0.07292
4.00
3.13
3.427
100
0.06248
4.24
3.06
2.936
105
0.05372
4.47
2.98
2.525
110
0.04635
4.70
2.92
2.179
115
0.04013
4.93
2.85
1.886
120
0.03485
5.15
2.79
1.638
125
0.03037
5.36
2.73
1.427
130
0.02654
5.57
2.67
1.247
135
0.02326
5.78
2.61
1.093
140
0.02044
5.98
2.55
0.9608
145
0.01802
6.18
2.50
0.8468
150
0.01592
6.37
2.44
0.7483
T
amb
(C)
R
T
/R
25
R DUE TO
B-TOLERANCE
(%)
TC
(%/K)
R
25
2322 640 .....; see note 1
5.473
RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES WITH R
25
AT 68 K AND 100 K
T
amb
(C)
R
T
/R
25
R DUE TO
B-TOLERANCE
(%)
TC
(%/K)
R
25
2322 640 .....; see note 1
6.683
6.104
-40
36.66
5.69
6.70
2493
3666
-35
26.38
5.15
6.49
1794
2638
-30
19.17
4.63
6.29
1303
1917
-25
14.06
4.13
6.10
956.2
1406
-20
10.41
3.65
5.92
708.0
1041
-15
7.779
3.18
5.74
528.9
777.9
-10
5.861
2.73
5.57
398.5
586.1
-5
4.453
2.30
5.41
302.8
445.3
0
3.409
1.88
5.26
231.8
340.9
5
2.631
1.48
5.11
178.9
263.1
10
2.044
1.09
4.97
139.0
204.4
15
1.600
0.72
4.83
108.8
160.0
20
1.261
0.35
4.70
85.74
126.1
25
1.000
0.00
4.57
68.00
100.0
30
0.7981
0.34
4.45
54.27
79.81
35
0.6408
0.67
4.35
43.57
64.08
40
0.5175
1.00
4.22
35.19
51.74
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