2381 641 6....
Vishay BCcomponents
NTC Thermistors, Molded Range
FEATURES
•
•
•
•
•
Excellent for surface temperature measurement
Designed for harsh environments
Based on the
“2322 640 0....”
naked thermistor chips.
Old part number was 2322 641 6....
Component in accordance to RoHS 2002/95/EC and
WEEE 2002/96/EC
APPLICATIONS
•
Temperature control.
These thermistors have a negative temperature coefficient.
The device consists of a moulded chip with two tin-plated
solid nickel leads. The body color is white and the device is
non-flammable.
QUICK REFERENCE DATA
PARAMETER
Resistance value at 25
°C
(R
25
)
Tolerance on R
25
-value
B
25/85
-values
Maximum dissipation
Response time
Operating temperature range:
at zero dissipation
at maximum dissipation
Minimum dielectric withstanding voltage
(RMS) between leads and lead
insulation
Minimum insulation resistance between
leads and lead insulation at 100 V (DC)
Climatic category
Mass
−40
to +125
°C
0 to 55
°C
350 V
VALUE
2.2 to 470 kΩ
±2%, ±3%, ±5%,
±10%
3 740 to 4 570 K
250 mW
≈2.7
s
PACKAGING
The smallest packing quantity is 500 units.
MARKING
White coloured body.
MOUNTING
By soldering in any position or mechanical fixing.
100 MΩ
40/125/56
≈0.3
g
ELECTRICAL DATA AND ORDERING INFORMATION
R
25
(kΩ)
2.2
2.7
12
15
33
100
470
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%
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For technical questions contact: nlr.europe@vishay.com
Document Number: 29059
Revision: 12-Apr-05
TC
(%/K)
-4.37
-4.37
-4.10
-4.10
-4.46
-4.57
-4.95
MASS
(g)
≈0.3
≈0.3
≈0.3
≈0.3
≈0.3
≈0.3
≈0.3
W
(mm)
4
±0.2
4
±0.2
4
±0.2
4
±0.2
4
±0.2
4
±0.2
4
±0.2
H
(mm)
4.4
±0.2
4.4
±0.2
4.4
±0.2
4.4
±0.2
4.4
±0.2
4.4
±0.2
4.4
±0.2
L
(mm)
21
±1
21
±1
21
±1
21
±1
21
±1
21
±1
21
±1
P
(mm)
2.54
±0.3
2.54
±0.3
2.54
±0.3
2.54
±0.3
2.54
±0.3
2.54
±0.3
2.54
±0.3
T
(mm)
2.5
±0.2
2.5
±0.2
2.5
±0.2
2.5
±0.2
2.5
±0.2
2.5
±0.2
2.5
±0.2
d
(mm)
0.6
±0.15
0.6
±0.15
0.6
±0.15
0.6
±0.15
0.6
±0.15
0.6
±0.15
0.6
±0.15
B
25/85
K
3 977
3 977
3 740
3 740
4090
4 190
4 570
TOL.
(%)
±0.75
±0.75
±2.0
±2.0
±1.5
±1.5
±1.5
CATALOG
NUMBER
2381 641 .....
(2)
6.222
6.272
6.123
6.153
6.333
6.104
6.474
2381 641 6....
NTC Thermistors, Molded Range
Vishay BCcomponents
DIMENSIONS
in millimeters
DERATING
P
(%)
100
0
40
0
55
85
Tamb (
o
C)
125
Power derating curve.
Fig.1 Component outline.
For dimensions see Electrical Data and Ordering Information Table
RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES
T
oper
(°C)
−40
−35
−30
−25
−20
−15
−10
−5
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
120
125
R
T
/R
25
ΔR
DUE TO
B-TOLERANCE
(%)
2.66
2.41
2.17
1.94
1.71
1.50
1.29
1.08
0.89
0.70
0.52
0.34
0.17
0.00
0.16
0.32
0.47
0.62
0.77
0.91
1.05
1.18
1.31
1.44
1.57
1.69
1.81
1.93
2.04
2.15
2.26
2.37
2.47
2.57
TC
(%/K)
-6.57
-6.36
-6.15
-5.95
-5.76
-5.58
-5.40
-5.24
-5.08
-4.92
-4.78
-4.64
-4.50
-4.37
-4.25
-4.13
-4.02
-3.91
-3.80
-3.70
-3.60
-3.51
-3.42
-3.33
-3.25
-3.16
-3.09
-3.01
-2.94
-2.87
-2.80
-2.73
-2.67
-2.61
6.222
730 62
52 779
38 545
28 444
21 199
15 950
12 110
9 275
7 162
5 575
4 372
3 454
2 747
2 200
1 773
1 438
1 173
961.8
793.2
657.5
547.8
458.6
385.7
325.8
276.4
235.5
201.4
172.9
149.0
128.9
111.8
97.37
85.05
74.52
R
T
(Ω)
2381 641 .....
(1)
6.272
89 667
64 774
47 305
34 908
26 017
19 575
14 863
11 383
8 790
6 842
5 366
4 239
3 372
2 700
2 176
1 764
1 439
1 180
973.4
807.0
672.3
562.8
473.3
399.9
339.2
289.0
247.2
212.2
182.9
158.2
137.2
119.5
104.4
91.46
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113
33.21
23.99
17.52
12.93
9.636
7.250
5.505
4.216
3.255
2.534
1.987
1.570
1.249
1.000
0.8059
0.6535
0.5330
0.4372
0.3605
0.2989
0.2490
0.2084
0.1753
0.1481
0.1256
0.1070
0.09154
0.07860
0.06773
0.05858
0.05083
0.04426
0.03866
0.03387
Document Number: 29059
Revision: 12-Apr-05
For technical questions contact: nlr.europe@vishay.com
2381 641 6....
Vishay BCcomponents
NTC Thermistors, Molded Range
RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES
T
oper
(°C)
−40
−35
−30
−25
−20
−15
−10
−5
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
120
125
ΔR
DUE TO
B-TOLERANCE
(%)
6.81
6.16
5.53
4.93
4.35
3.80
3.26
2.74
2.24
1.76
1.30
0.85
0.42
0.00
0.41
0.80
1.19
1.57
1.94
2.30
2.65
2.99
3.33
3.66
3.98
4.29
4.60
4.90
5.19
5.48
5.76
6.04
6.31
6.57
TC
(%/K)
-6.09
-5.89
-5.70
-5.52
-5.35
-5.19
-5.03
-4.88
-4.73
-4.60
-4.46
-4.34
-4.21
-4.10
-3.98
-3.88
-3.77
-3.67
-3.57
-3.48
-3.39
-3.30
-3.22
-3.14
-3.06
-2.99
-2.92
-2.85
-2.78
-2.71
-2.65
-2.59
-2.53
-2.47
6.123
309 403
229 509
171 844
129 828
98 935
76 020
58 880
45 954
36 130
28 607
22 805
18 298
14 774
12 000
9 804
8 054
6 652
5 522
4 607
3 862
3 252
2 751
2 337
1 993
1 707
1 467
1 266
1 096
952.2
830.2
726.0
636.9
560.4
494.5
R
T
(Ω)
2381 641 .....
(1)
6.153
386 754
286 887
214 805
162 285
123 669
95 025
73 600
57 443
45 163
35 759
28 506
22 872
18 467
15 000
12 255
10 068
8 315
6 903
5 759
4 828
4 066
3 439
2 921
2 492
2 134
1 834
1 583
1 370
1 190
1 038
907.5
796.1
700.5
618.1
R
T
/R
25
25.78
19.13
14.32
10.82
8.245
6.335
4.907
3.830
3.011
2.384
1.900
1.525
1.231
1.000
0.8171
0.6712
0.5543
0.4602
0.3839
0.3219
0.2710
0.2293
0.1947
0.1661
0.1422
0.1223
0.1055
0.09135
0.07937
0.06919
0.06050
0.05307
0.04670
0.04121
RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES
T
oper
(°C)
−40
−35
−30
−25
−20
−15
−10
−5
0
5
10
15
20
25
30
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114
ΔR
DUE TO
B-TOLERANCE
(%)
5.69
5.15
4.63
4.13
3.65
3.18
2.73
2.30
1.88
1.48
1.09
0.72
0.35
0.00
0.34
TC
(%/K)
-6.70
-6.49
-6.29
-6.10
-5.92
-5.74
-5.57
-5.41
-5.26
-5.11
-4.97
-4.83
-4.70
-4.57
-4.45
R
T
(Ω)
2381 641 .....
(1)
6.104
3 666 321
2 637 604
1 916 588
1 406 120
1 041 190
777 851
586 100
445 260
340 944
263 055
204 447
160 015
126 087
100 000
79 808
Document Number: 29059
Revision: 12-Apr-05
R
T
/R
25
36.66
26.38
19.17
14.06
10.41
7.779
5.861
4.453
3.409
2.631
2.044
1.600
1.261
1.000
0.7981
For technical questions contact: nlr.europe@vishay.com
2381 641 6....
NTC Thermistors, Molded Range
Vishay BCcomponents
T
oper
(°C)
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
120
125
R
T
/R
25
ΔR
DUE TO
B-TOLERANCE
(%)
0.67
1.00
1.32
1.63
1.93
2.22
2.51
2.79
3.06
3.33
3.59
3.85
4.10
4.35
4.59
4.82
5.05
5.28
5.50
TC
(%/K)
-4.35
-4.22
-4.11
-4.00
-3.90
-3.80
-3.71
-3.62
-3.53
-3.45
-3.36
-3.28
-3.21
-3.13
-3.06
-2.99
-2.92
-2.86
-2.80
R
T
(Ω)
2381 641 .....
(1)
6.104
64 077
51 746
42 021
34 308
28 156
23 223
19 246
16 025
13 402
11 258
9 496
8 042
6 837
5 835
4 998
4 296
3 705
3 206
2 783
0.6408
0.5175
0.4202
0.3431
0.2816
0.2322
0.1925
0.1602
0.1340
0.1126
0.09496
0.08042
0.06837
0.05835
0.04998
0.04296
0.03705
0.03206
0.02783
RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES
T
oper
(°C)
−40
−35
−30
−25
−20
−15
−10
−5
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
120
125
ΔR
DUE TO
B-TOLERANCE
(%)
6.22
5.63
5.06
4.51
3.98
3.47
2.98
2.51
2.06
1.62
1.19
0.78
0.38
0.00
0.37
0.74
1.09
1.44
1.77
2.10
2.43
2.74
3.05
3.35
3.64
3.93
4.21
4.48
4.75
5.01
5.27
5.52
5.77
6.01
TC
(%/K)
R
T
(Ω)
2381 641 .....
(1)
6.474
48.62
34.19
24.28
17.42
12.61
9.211
6.788
5.045
3.781
2.855
2.173
1.666
1.286
1.000
0.7825
0.6163
0.4883
0.3892
0.3120
0.2515
0.2038
0.1660
0.1359
0.1118
0.09240
0.07670
0.06395
0.05354
0.04501
0.03798
0.03218
0.02736
0.02335
0.01999
-7.13
-6.91
-6.71
-6.52
-6.33
-6.15
-5.98
-5.82
-5.66
-5.50
-5.36
-5.22
-5.08
-4.95
-4.82
-4.70
-4.59
-4.47
-4.36
-4.26
-4.15
-4.06
-3.96
-3.87
-3.78
-3.69
-3.61
-3.53
-3.45
-3.37
-3.30
-3.23
-3.16
-3.09
22 849 885
16 068 156
11 412 861
8 185 271
5 925 780
4 329 092
3 190 465
2 371 302
1 776 920
1 342 065
1 021 372
783 037
604 583
470 000
367 792
289 646
229 509
182 938
146 652
118 215
95 801
78 037
63 884
52 549
43 427
30 055
25 163
21 153
17 852
15 123
12 859
10 973
9 396
9 325
www.vishay.com
115
R
T
/R
25
Document Number: 29059
Revision: 12-Apr-05
For technical questions contact: nlr.europe@vishay.com
2381 641 6....
Vishay BCcomponents
NTC Thermistors, Molded Range
RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES
T
oper
(°C)
−40
−35
−30
−25
−20
−15
-10
−5
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
120
125
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%
ΔR
DUE TO
B-TOLERANCE
(%)
5.55
5.02
4.52
4.03
3.56
3.10
2.67
2.24
1.84
1.44
1.07
0.70
0.34
0.00
.033
0.66
0.98
1.28
1.59
1.88
2.17
2.45
2.72
2.99
3.25
3.51
3.76
4.00
4.24
4.47
4.70
4.93
5.15
5.36
TC
(%/K)
R
T
(Ω)
2381 641 .....
(1)
6.333
33.81
24.50
17.93
13.25
9.875
7.425
5.630
4.304
3.315
2.573
2.011
1.583
1.254
1.0000
0.8024
0.6474
0.5255
0.4288
0.3518
0.2901
0.2403
0.2001
0.1674
0.1406
0.1186
0.1004
0.08542
0.07292
0.06248
0.05372
0.04635
0.04013
0.03485
0.03037
-6.55
-6.34
-6.15
-5.96
-5.78
-5.61
-5.45
-5.29
-5.14
-4.99
-4.85
-4.72
-4.59
-4.46
-4.34
-4.23
-4.12
-4.01
-3.91
-3.81
-3.71
-3.62
-3.53
-3.44
-3.36
-3.28
-3.20
-3.13
-3.06
-2.98
-2.92
-2.85
-2.79
-2.73
1116
808.6
591.7
437.1
325.9
245.0
185.8
142.0
109.4
84.91
66.37
52.24
41.39
33.00
26.47
21.37
17.34
14.15
11.61
9.572
7.931
6.603
5.522
4.639
3.913
3.315
2.819
2.406
2.062
1.773
1.530
1.324
1.150
1.002
R
T
/R
25
www.vishay.com
116
For technical questions contact: nlr.europe@vishay.com
Document Number: 29059
Revision: 12-Apr-05
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