2322 633 0/1....
Vishay BCcomponents
NTC Thermistors, Glass Encapsulated Miniature Bead
FEATURES
•
Small diameter
•
Quick response to changes in temperature
•
Very high long term stability
•
High temperature operation
APPLICATIONS
Temperature measurement, level and flow sensing.
Bead thermistor with negative temperature coefficient,
having two solid platinum-iridium leads in axial or radial
configuration. The device is non-flammable.
QUICK REFERENCE DATA
PARAMETER
Resistance value at 25
°
C
Tolerance on R25-value
B25/85-value
Tolerance on B25/85-value
Maximum dissipation at 55
°
C
Response time; note 1
Operating temperature range:
at zero dissipation
Mass
Note
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.
−
55 to +200
°
C
≈
33 mg
VALUE
1 k
Ω
to 1 M
Ω
±
5%;
±
10%
2075 to 4100 K
±
5%
100 mW
≈
0.5 s
MOUNTING
Spot weld the leads to conducting wires or other supports.
PACKAGING
The thermistors are packed in cardboard boxes; the smallest
packaging quantity is 100 units.
ELECTRICAL DATA AND ORDERING INFORMATION
CATALOG NUMBER 2322 633 .....
R
25
(k
Ω
)
1
2.2
4.7
10
22
47
100
220
470
1000
Note
1. R
25
-values, temperature coefficients and catalog numbers.
2. The thermistors have a 12-digit catalog number starting with 2322 633. The subsequent 5 digits indicate the resistance value and tolerance.
Document Number: 29063
Revision: 10-Oct-03
For technical questions contact: nlr.europe@vishay.com
www.vishay.com
125
B
25/85
-VALUE
2075 K
±
5%
2285 K
±
5%
2485 K
±
5%
3750 K
±
5%
3560 K
±
5%
3750 K
±
5%
3900 K
±
5%
3860 K
±
5%
3950 K
±
5%
4100 K
±
5%
TC
(%/K)
−
2.3
−
2.6
−
2.8
−
4.2
−
4.0
−
4.2
−
4.4
−
4.3
−
4.5
−
4.6
AXIAL LEADS
R
25
±
5%
03102
03222
03472
03103
03223
03473
03104
03224
03474
03105
R
25
±
10%
02102
02222
02472
02103
02223
02473
02104
02224
02474
02105
RADIAL LEADS
R
25
±
5%
13102
13222
13472
13103
13223
13473
13104
13224
13474
13105
R
25
±
10%
12102
12222
12472
12103
12223
12473
12104
12224
12474
12105
2322 633 0/1....
Vishay BCcomponents
NTC Thermistors, Glass Encapsulated
Miniature Bead
DIMENSIONS
in millimeters
Component outline of 2322 633 0.... (axial leads).
Component outline of 2322 633 1.... (radial leads).
∅0.06
1.2
0.7
∅
1.0
0.7
∅0.06
5 min.
1.0
0.7
5 min.
1.0
0.7
1.3
0.8
5 min.
DERATING
P
(%)
100
0
−55
0
55
85
T
amb
(°C)
200
Fig.3 Power derating curve.
www.vishay.com
126
For technical questions contact: nlr.europe@vishay.com
Document Number: 29063
Revision: 10-Oct-03
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