NTC Thermistors, Special Long Lead Sensors
2322 641 2/3/4....
Vishay BCcomponents
Document Number: 29060
For technical questions contact: nlr.europe@vishay.com
www.vishay.com
Revision: 10-Oct-03
117
QUICK REFERENCE DATA
Notes
1. Response time in silicone oil MS 200/50. 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. Wire length and wire type are optional on request. The products
can be provided with a connector on request.
3. Tighter tolerances on R
25
are available upon request.
PARAMETER
VALUE
UNIT
Resistance value at 25
C (R
25
)
2.2 to 100
k
Tolerance on R
25
-value
3
%
Tolerance on B
25/85
-value
1.5 or
0.75
%
Maximum dissipation
250
mW
Dissipation factor:
2322 641 2....
6.0
mW/K
2322 641 3....
8.0
mW/K
2322 641 4....
6.0
mW/K
Response time; note 1:
2322 641 2....
7
s
2322 641 3....
15
s
2322 641 4....
10
s
Operating temperature range:
at zero dissipation
-
40 to +85
C
at maximum dissipation
0 to +50
C
Climatic category
40/085/56
Lead wire; note 2
UL-2468.AWG24 wire
Mass:
2322 641 2....
4
g
2322 641 3....
6
g
2322 641 4....
6
g
FEATURES
Accurate over wide temperature range
High stability
Excellent price/performance ratio
High adhesive strength between PVC wire and the
encapsulating laquer
APPLICATIONS
Temperature sensing and control
These thermistors have a negative temperature coefficient.
The epoxy-coated type (2322 641 2....) consists of a chip
with UL wire and is lacquered and insulated with black
epoxy.
The sleeved type (2322 641 3....) and the brass-pipe type
(2322
641
4....) are suitable for application in various
environmental conditions.
MARKING
UL mark on wire, no mark on body.
PACKAGING
The thermistors are packed in cardboard boxes; each box
containing 500 pcs.
ELECTRICAL DATA AND ORDERING INFORMATION
Notes
1. Other values based on the 2322 640 0.... series are available on request.
2. The specified catalog numbers refer to products with L = 400 mm, without connector and adopt UL-2468.AWG24 wire.
R
25
(k
)
B
25/85
-VALUE
CATALOG NUMBER 2322 641 .....
(2)
EPOXY-COATED TYPE
SLEEVED
TYPE
BRASS-PIPE
TYPE
2.2
3977 K
0.75%
26222
36222
46222
5
3977 K
0.75%
26502
36502
-
10
3977 K
0.75%
26103
36103
46103
47
4090 K
1.5%
26473
36473
-
100
4190 K
1.5%
26104
36104
46104
2322 641 2/3/4....
Vishay BCcomponents
NTC Thermistors, Special Long Lead Sensors
www.vishay.com
For technical questions contact: nlr.europe@vishay.com
Document Number: 29060
118
Revision: 10-Oct-03
DIMENSIONS
in millimeters
Epoxy-coated type 2322 641 2....
L = 400 mm +15/-0. Other wire lengths available on request.
L
6 max
3
17 +
-
2
5
L = 400 mm +15/-0. Other wire lengths available on request.
L
8 max
25 5
15 max
2
5
Sleeved type 2322 641 3....
L = 400 mm +15/-0. Other wire lengths available on request.
6
0.1
25 0.5
L
2
5
Brass-pipe type 2322 641 4....
DERATING
Power derating curve.
0
55
40
85
125
T ( C)
o
100
0
P
(%)
amb
2322 641 2/3/4....
NTC Thermistors, Special Long Lead Sensors
Vishay BCcomponents
Document Number: 29060
For technical questions contact: nlr.europe@vishay.com
www.vishay.com
Revision: 10-Oct-03
119
R-T CHARACTERISTICS
RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES
T
amb
(
C)
R
T
/R
25
R DUE TO
B-TOLERANCE
(%)
TC
(%/K)
R
25
(k
)
2322 641 2/3/4 .....;
see note 1
at end of tables
.6222
.6502
.6103
-
40
33.21
2.66
6.57
73.06
166.1
332.1
-
35
23.99
2.41
6.36
52.78
120.0
240.0
-
30
17.52
2.17
6.15
38.55
87.60
175.2
-
25
12.93
1.94
5.95
28.44
64.65
129.3
-
20
9.636
1.71
5.76
21.20
48.18
96.36
-
15
7.250
1.50
5.58
15.95
36.25
72.50
-
10
5.505
1.29
5.40
12.11
27.52
55.05
-
5
4.216
1.08
5.24
9.275
21.08
42.16
0
3.255
0.89
5.08
7.162
16.28
32.56
5
2.534
0.70
4.92
5.575
12.67
25.34
10
1.987
0.52
4.78
4.372
9.936
19.87
15
1.570
0.34
4.64
3.454
7.849
15.70
20
1.249
0.17
4.50
2.747
6.244
12.49
25
1.000
0.00
4.37
2.200
5.000
10.00
30
0.8059
0.16
4.25
1.773
4.030
8.059
35
0.6535
0.32
4.13
1.438
3.267
6.535
40
0.5330
0.47
4.02
1.173
2.665
5.330
45
0.4372
0.62
3.91
0.9618
2.186
4.372
50
0.3605
0.77
3.80
0.7932
1.803
3.606
55
0.2989
0.91
3.70
0.6575
1.494
2.989
60
0.2490
1.05
3.60
0.5478
1.245
2.490
65
0.2084
1.18
3.51
0.4586
1.042
2.084
70
0.1753
1.31
3.42
0.3857
0.8765
1.753
75
0.1481
1.44
3.33
0.3258
0.7405
1.481
80
0.1256
1.57
3.25
0.2764
0.6282
1.256
85
0.1070
1.69
3.16
0.2355
0.5352
1.070
RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES
T
amb
(
C)
R
T
/R
25
R DUE TO
B-TOLERANCE
(%)
TC
(%/K)
R
25
(k
)
2322 641 2/3/4 ....;
see note 1
at end of tables
.6473
-
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
-
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
2322 641 2/3/4....
Vishay BCcomponents
NTC Thermistors, Special Long Lead Sensors
www.vishay.com
For technical questions contact: nlr.europe@vishay.com
Document Number: 29060
120
Revision: 10-Oct-03
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
T
amb
(
C)
R
T
/R
25
R DUE TO
B-TOLERANCE
(%)
TC
(%/K)
R
25
(k
)
2322 641 2/3/4 ....;
see note 1
at end of tables
.6473
RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES
Note
1. Replace dot in last 5 digits of catalog number by a number according to the following details:
a) 2 for epoxy-coated type
b) 3 for water-resistant type
c) 4 for brass-pipe type.
TESTS AND REQUIREMENTS
T
amb
(
C)
R
T
/R
25
R DUE TO
B-TOLERANCE
(%)
TC
(%/K)
R
25
(k
)
2322 641 2/3/4 ....;
see note 1
.6104
-
40
36.66
5.69
6.70
3666
-
35
26.38
5.15
6.49
2638
-
30
19.17
4.63
6.29
1917
-
25
14.06
4.13
6.10
1406
-
20
10.41
3.65
5.92
1041
-
15
7.779
3.18
5.74
777.9
-
10
5.861
2.73
5.57
586.1
-
5
4.453
2.30
5.41
445.3
0
3.409
1.88
5.26
340.9
5
2.631
1.48
5.11
263.1
10
2.044
1.09
4.97
204.4
15
1.600
0.72
4.83
160.0
20
1.261
0.35
4.70
126.1
25
1.000
0.00
4.57
100.0
30
0.7981
0.34
4.45
79.81
35
0.6408
0.67
4.35
64.08
40
0.5175
1.00
4.22
51.74
45
0.4202
1.32
4.11
42.02
50
0.3431
1.63
4.00
34.31
55
0.2816
1.93
3.90
28.16
60
0.2322
2.22
3.80
23.22
65
0.1925
2.51
3.71
19.25
70
0.1602
2.79
3.62
16.03
75
0.1340
3.06
3.53
13.40
80
0.1126
3.33
3.45
11.26
85
0.09496
3.59
3.36
9.496
STABILITY TESTS
IEC
CECC
TEST
PROCEDURE
DRIFT REQUIREMENT
D3; 4.20.1
endurance
85
C; 1000 hours
R/R < 5%
68-2-1
endurance
-
40
C; 1000 hours
R/R < 5%
539
endurance
250 mW; 55 C; 1000 hours
R/R < 5%
68-2-3
D1; 4.19
damp heat, steady state
56 days at 40 C; 90 to 95% RH
R/R < 7%
68-2-14
C2; 4.14
rapid change of temperature
-40 to +85 C; 50 cycles
R/R < 5%
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