鈥?/div>
Rugged construction
APPLICATIONS
Suitable for many applications, especially when a good
insulation and/or a good thermal contact with the chassis is
required.
Thermistor with negative temperature coefficient and two
solid tinned copper leads.
The device is mounted in the head of aluminium screws
size M4.
PACKAGING
QUICK REFERENCE DATA
PARAMETER
Resistance value at 25
擄
C
Tolerance on R
25
-value
B
25/85
-value
Dissipation factor; note 1
Thermal time constant; note 1
Operating temperature range at:
zero dissipation
maximum dissipation
Mass
Note
1. Measured with screw mounted on an aluminium heatsink of
100 cm
2
, thickness 1.5 mm, in still air at T
amb
= +25
擄
C.
2. Other R
25
values based on 640 0 series are available upon
request.
3. Other tolerances on R
25
are available upon request.
37
鹵3
8
鹵
0.1
6.7
max.
8
max.
The thermistors are packed in cardboard boxes; the smallest
packaging quantity is 100 units.
VALUE
2.2 k
鈩?/div>
to 470 k
鈩?/div>
鹵
5%
3740 to 4570 K
鈮?/div>
23 mW/K
鈮?/div>
7.5 s
MARKING
The last 4 digits of the catalog number are printed on the stud
in accordance with the information in Electrical Data and
Ordering Information Table.
MOUNTING
By means of a washer and M4 nut supplied with the device.
Applied torque shall not exceed 1.2 Nm. Leads to be
soldered.
鈭?/div>
40 to +100
擄
C
0 to +55
擄
C
鈮?/div>
1.5 g
DIMENSIONS
in millimeters
鈭?.6
5.5
min.
M4
Component outline.
ELECTRICAL DATA AND ORDERING INFORMATION
R
25
(k
鈩?/div>
)
2.2
4.7
10
12
15
47
100
150
470
B
25/85
-VALUE
3977 K
鹵
0.75%
3977 K
鹵
0.75%
3977 K
鹵
0.75%
3740 K
鹵
1.5%
3740 K
鹵
1.5%
4090 K
鹵
1.5%
4190 K
鹵
1.5%
4370 K
鹵
2.5%
4570 K
鹵
2%
TC
(%/K)
鈭?/div>
4.37
鈭?/div>
4.37
鈭?/div>
4.37
鈭?/div>
4.10
鈭?/div>
4.10
鈭?/div>
4.46
鈭?/div>
4.57
鈭?/div>
4.75
鈭?/div>
4.95
CATALOG NUMBER 2322 640 7....
R
25
鹵
5%
3222
3472
3103
3123
3153
3473
3104
3154
3474
Note
R
25
-values, temperature coefficients and catalog numbers.
The thermistors have a 12-digit catalog number starting with 2322 640 7. The subsequent 4 digits indicate the resistance value and tolerance.
Document Number: 29065
Revision: 10-Oct-03
For technical questions contact: nlr.europe@vishay.com
www.vishay.com
129
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