NTC Thermistors, Molded Range
2322 641 6....
Vishay BCcomponents
www.vishay.com
For technical questions contact: nlr.europe@vishay.com
Document Number: 29059
112
Revision: 10-Oct-03
FEATURES
Excellent for surface temperature measurement
Designed for harsh environments
Based on the
"2322 640 0...."
naked thermistor chips.
APPLICATIONS
Temperature control.
These thermistors have a negative temperature coefficient.
The device consists of a molded chip with two tin-plated solid
nickel leads. The body color is white and the device is
non-flammable.
PACKAGING
The smallest packing quantity is 500 units.
QUICK REFERENCE DATA
PARAMETER
VALUE
Resistance value at 25
C (R
25
)
2.2 to 470 k
Tolerance on R
25
-value
2%,
3%,
5%,
10%
B
25/85
-values
3740 to 4570 K
Maximum dissipation
250 mW
Response time
2.7 s
Operating temperature range:
at zero dissipation
-
40 to +125
C
at maximum dissipation
0 to 55
C
Minimum dielectric withstanding voltage
(RMS) between leads and lead
insulation
350 V
Minimum insulation resistance between
leads and lead insulation at 100 V (DC)
100 M
Climatic category
40/125/56
Mass
0.3 g
MARKING
White coloured body.
MOUNTING
By soldering in any position or mechanical fixing.
ELECTRICAL DATA AND ORDERING INFORMATION
Note
1. R
25
-values, TC, mass, dimentions and catalog numbers.
a) Other R
25
-values are available on request.
2. Replace dot in the code numbers by one of the following, depending on required R
25
-value:
4 for a tolerance of
2%
6 for a tolerance of
3%
3 for a tolerance of
5%
2 for a tolerance of
10%
R
25
(k
)
TC
(%/K)
MASS
(g)
W
(mm)
H
(mm)
L
(mm)
P
(mm)
T
(mm)
d
(mm)
B
25/85
CATALOG
NUMBER
2322 641 .....
(2)
K
TOL.
(%)
2.2
-4.37
0.3
4
0.2
4.4
0.2
21
1
2.54
0.3
2.5
0.2
0.6
0.06
3977
0.75
6.222
2.7
-4.37
0.3
4
0.2
4.4
0.2
21
1
2.54
0.3
2.5
0.2
0.6
0.06
3977
0.75
6.272
12
-4.10
0.3
4
0.2
4.4
0.2
21
1
2.54
0.3
2.5
0.2
0.6
0.06
3740
2.0
6.123
15
-4.10
0.3
4
0.2
4.4
0.2
21
1
2.54
0.3
2.5
0.2
0.6
0.06
3740
2.0
6.153
33
-4.46
0.3
4
0.2
4.4
0.2
21
1
2.54
0.3
2.5
0.2
0.6
0.06
4090
1.5
6.333
100
-4.57
0.3
4
0.2
4.4
0.2
21
1
2.54
0.3
2.5
0.2
0.6
0.06
4190
1.5
6.104
470
-4.95
0.3
4
0.2
4.4
0.2
21
1
2.54
0.3
2.5
0.2
0.6
0.06
4570
1.5
6.474
2322 641 6....
NTC Thermistors, Molded Range
Vishay BCcomponents
Document Number: 29059
For technical questions contact: nlr.europe@vishay.com
www.vishay.com
Revision: 10-Oct-03
113
DERATING
0
55
40
85
125
T ( C)
o
100
0
P
(%)
amb
Power derating curve.
DIMENSIONS
in millimeters
Fig.1 Component outline.
For dimensions see Electrical Data and Ordering Information Table
RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES
T
oper
(
C)
R
T
/R
25
R DUE TO
B-TOLERANCE
(%)
TC
(%/K)
R
T
(
)
2322 641 .....
(1)
6.222
6.272
-
40
33.21
2.66
-6.57
73062
89667
-
35
23.99
2.41
-6.36
52779
64774
-
30
17.52
2.17
-6.15
38545
47305
-
25
12.93
1.94
-5.95
28444
34908
-
20
9.636
1.71
-5.76
21199
26017
-
15
7.250
1.50
-5.58
15950
19575
-
10
5.505
1.29
-5.40
12110
14863
-
5
4.216
1.08
-5.24
9275
11383
0
3.255
0.89
-5.08
7162
8790
5
2.534
0.70
-4.92
5575
6842
10
1.987
0.52
-4.78
4372
5366
15
1.570
0.34
-4.64
3454
4239
20
1.249
0.17
-4.50
2747
3372
25
1.000
0.00
-4.37
2200
2700
30
0.8059
0.16
-4.25
1773
2176
35
0.6535
0.32
-4.13
1438
1764
40
0.5330
0.47
-4.02
1173
1439
45
0.4372
0.62
-3.91
961.8
1180
50
0.3605
0.77
-3.80
793.2
973.4
55
0.2989
0.91
-3.70
657.5
807.0
60
0.2490
1.05
-3.60
547.8
672.3
65
0.2084
1.18
-3.51
458.6
562.8
70
0.1753
1.31
-3.42
385.7
473.3
75
0.1481
1.44
-3.33
325.8
399.9
80
0.1256
1.57
-3.25
276.4
339.2
85
0.1070
1.69
-3.16
235.5
289.0
90
0.09154
1.81
-3.09
201.4
247.2
95
0.07860
1.93
-3.01
172.9
212.2
100
0.06773
2.04
-2.94
149.0
182.9
105
0.05858
2.15
-2.87
128.9
158.2
110
0.05083
2.26
-2.80
111.8
137.2
115
0.04426
2.37
-2.73
97.37
119.5
120
0.03866
2.47
-2.67
85.05
104.4
125
0.03387
2.57
-2.61
74.52
91.46
2322 641 6....
Vishay BCcomponents
NTC Thermistors, Molded Range
www.vishay.com
For technical questions contact: nlr.europe@vishay.com
Document Number: 29059
114
Revision: 10-Oct-03
RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES
T
oper
(
C)
R
T
/R
25
R DUE TO
B-TOLERANCE
(%)
TC
(%/K)
R
T
(
)
2322 641 .....
(1)
6.123
6.153
-
40
25.78
6.81
-6.09
309403
386754
-35
19.13
6.16
-5.89
229509
286887
-30
14.32
5.53
-5.70
171844
214805
-25
10.82
4.93
-5.52
129828
162285
-20
8.245
4.35
-5.35
98935
123669
-15
6.335
3.80
-5.19
76020
95025
-10
4.907
3.26
-5.03
58880
73600
-5
3.830
2.74
-4.88
45954
57443
0
3.011
2.24
-4.73
36130
45163
5
2.384
1.76
-4.60
28607
35759
10
1.900
1.30
-4.46
22805
28506
15
1.525
0.85
-4.34
18298
22872
20
1.231
0.42
-4.21
14774
18467
25
1.000
0.00
-4.10
12000
15000
30
0.8171
0.41
-3.98
9804
12255
35
0.6712
0.80
-3.88
8054
10068
40
0.5543
1.19
-3.77
6652
8315
45
0.4602
1.57
-3.67
5522
6903
50
0.3839
1.94
-3.57
4607
5759
55
0.3219
2.30
-3.48
3862
4828
60
0.2710
2.65
-3.39
3252
4066
65
0.2293
2.99
-3.30
2751
3439
70
0.1947
3.33
-3.22
2337
2921
75
0.1661
3.66
-3.14
1993
2492
80
0.1422
3.98
-3.06
1707
2134
85
0.1223
4.29
-2.99
1467
1834
90
0.1055
4.60
-2.92
1266
1583
95
0.09135
4.90
-2.85
1096
1370
100
0.07937
5.19
-2.78
952.2
1190
105
0.06919
5.48
-2.71
830.2
1038
110
0.06050
5.76
-2.65
726.0
907.5
115
0.05307
6.04
-2.59
636.9
796.1
120
0.04670
6.31
-2.53
560.4
700.5
125
0.04121
6.57
-2.47
494.5
618.1
RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES
T
oper
(C)
R
T
/R
25
R DUE TO
B-TOLERANCE
(%)
TC
(%/K)
R
T
(
)
2322 641 .....
(1)
6.104
-40
36.66
5.69
-6.70
3666321
-35
26.38
5.15
-6.49
2637604
-30
19.17
4.63
-6.29
1916588
-25
14.06
4.13
-6.10
1406120
-20
10.41
3.65
-5.92
1041190
-15
7.779
3.18
-5.74
777851
-10
5.861
2.73
-5.57
586100
-5
4.453
2.30
-5.41
445260
0
3.409
1.88
-5.26
340944
5
2.631
1.48
-5.11
263055
10
2.044
1.09
-4.97
204447
15
1.600
0.72
-4.83
160015
20
1.261
0.35
-4.70
126087
25
1.000
0.00
-4.57
100000
30
0.7981
0.34
-4.45
79808
2322 641 6....
NTC Thermistors, Molded Range
Vishay BCcomponents
Document Number: 29059
For technical questions contact: nlr.europe@vishay.com
www.vishay.com
Revision: 10-Oct-03
115
35
0.6408
0.67
-4.35
64077
40
0.5175
1.00
-4.22
51746
45
0.4202
1.32
-4.11
42021
50
0.3431
1.63
-4.00
34308
55
0.2816
1.93
-3.90
28156
60
0.2322
2.22
-3.80
23223
65
0.1925
2.51
-3.71
19246
70
0.1602
2.79
-3.62
16025
75
0.1340
3.06
-3.53
13402
80
0.1126
3.33
-3.45
11258
85
0.09496
3.59
-3.36
9496
90
0.08042
3.85
-3.28
8042
95
0.06837
4.10
-3.21
6837
100
0.05835
4.35
-3.13
5835
105
0.04998
4.59
-3.06
4998
110
0.04296
4.82
-2.99
4296
115
0.03705
5.05
-2.92
3705
120
0.03206
5.28
-2.86
3206
125
0.02783
5.50
-2.80
2783
T
oper
(C)
R
T
/R
25
R DUE TO
B-TOLERANCE
(%)
TC
(%/K)
R
T
(
)
2322 641 .....
(1)
6.104
RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES
T
oper
(C)
R
T
/R
25
R DUE TO
B-TOLERANCE
(%)
TC
(%/K)
R
T
(
)
2322 641 .....
(1)
6.474
-40
48.62
6.22
-7.13
22849885
-35
34.19
5.63
-6.91
16068156
-30
24.28
5.06
-6.71
11412861
-25
17.42
4.51
-6.52
8185271
-20
12.61
3.98
-6.33
5925780
-15
9.211
3.47
-6.15
4329092
-10
6.788
2.98
-5.98
3190465
-5
5.045
2.51
-5.82
2371302
0
3.781
2.06
-5.66
1776920
5
2.855
1.62
-5.50
1342065
10
2.173
1.19
-5.36
1021372
15
1.666
0.78
-5.22
783037
20
1.286
0.38
-5.08
604583
25
1.000
0.00
-4.95
470000
30
0.7825
0.37
-4.82
367792
35
0.6163
0.74
-4.70
289646
40
0.4883
1.09
-4.59
229509
45
0.3892
1.44
-4.47
182938
50
0.3120
1.77
-4.36
146652
55
0.2515
2.10
-4.26
118215
60
0.2038
2.43
-4.15
95801
65
0.1660
2.74
-4.06
78037
70
0.1359
3.05
-3.96
63884
75
0.1118
3.35
-3.87
52549
80
0.09240
3.64
-3.78
43427
85
0.07670
3.93
-3.69
30055
90
0.06395
4.21
-3.61
25163
95
0.05354
4.48
-3.53
21153
100
0.04501
4.75
-3.45
17852
105
0.03798
5.01
-3.37
15123
110
0.03218
5.27
-3.30
12859
115
0.02736
5.52
-3.23
10973
120
0.02335
5.77
-3.16
9396
125
0.01999
6.01
-3.09
9325
2322 641 6....
Vishay BCcomponents
NTC Thermistors, Molded Range
www.vishay.com
For technical questions contact: nlr.europe@vishay.com
Document Number: 29059
116
Revision: 10-Oct-03
RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES
Note
1. Replace dot in the code numbers by one of the following, depending on required R
25
-value:
4 for a tolerance of 2%
6 for a tolerance of 3%
3 for a tolerance of 5%
2 for a tolerance of 10%
T
oper
(C)
R
T
/R
25
R DUE TO
B-TOLERANCE
(%)
TC
(%/K)
R
T
(
)
2322 641 .....
(1)
6.333
-40
33.81
5.55
-6.55
1116
-35
24.50
5.02
-6.34
808.6
-30
17.93
4.52
-6.15
591.7
-25
13.25
4.03
-5.96
437.1
-20
9.875
3.56
-5.78
325.9
-15
7.425
3.10
-5.61
245.0
-10
5.630
2.67
-5.45
185.8
-5
4.304
2.24
-5.29
142.0
0
3.315
1.84
-5.14
109.4
5
2.573
1.44
-4.99
84.91
10
2.011
1.07
-4.85
66.37
15
1.583
0.70
-4.72
52.24
20
1.254
0.34
-4.59
41.39
25
1.0000
0.00
-4.46
33.00
30
0.8024
.033
-4.34
26.47
35
0.6474
0.66
-4.23
21.37
40
0.5255
0.98
-4.12
17.34
45
0.4288
1.28
-4.01
14.15
50
0.3518
1.59
-3.91
11.61
55
0.2901
1.88
-3.81
9.572
60
0.2403
2.17
-3.71
7.931
65
0.2001
2.45
-3.62
6.603
70
0.1674
2.72
-3.53
5.522
75
0.1406
2.99
-3.44
4.639
80
0.1186
3.25
-3.36
3.913
85
0.1004
3.51
-3.28
3.315
90
0.08542
3.76
-3.20
2.819
95
0.07292
4.00
-3.13
2.406
100
0.06248
4.24
-3.06
2.062
105
0.05372
4.47
-2.98
1.773
110
0.04635
4.70
-2.92
1.530
115
0.04013
4.93
-2.85
1.324
120
0.03485
5.15
-2.79
1.150
125
0.03037
5.36
-2.73
1.002
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