2322 626 1....
Vishay BCcomponents
NTC Thermistors, Glass Encapsulated Miniature Bead
Document Number: 29061
For technical questions contact: nlr.europe@vishay.com
www.vishay.com
Revision: 10-Oct-03
121
QUICK REFERENCE DATA
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.
PARAMETER
VALUE
Resistance value at 25
C
1 k
to 1 M
Tolerance on R25-value
5%;
10%
B25/85-value
2075 to 4100 K
Tolerance on B25/85-value
5%
Maximum dissipation at 55
C
100 mW
Dissipation factor
1.2 mW/K
Response time; note 1
1 s
Thermal time constant
10 s
Operating temperature range:
at zero dissipation
-
55 to +200
C or
-
55 to +300
C
at maximum dissipation
0 to 55
C
Dielectric withstanding voltage (RMS)
between terminals and glass envelope
min. 1 500 V
Insulation resistance between
terminals and glass envelope at 100 V
min. 100 M
Mass
0.27 g
MARKING
The thermistors are marked with four colored dots on the
glass envelope; see Component Outline drawing and
Electrical Data and Ordering Information table.
MOUNTING
By soldering in any position.
PACKAGING
The thermistors are packed in cardboard boxes; the smallest
packaging quantity is 100 units.
FEATURES
Small diameter
Quick response to changes in temperature
High stability over long time periods
High temperature operation
Resistant to aggressive environments
High degree of isolation between tip and environment
APPLICATIONS
Temperature measurement and control.
Bead thermistor with negative temperature coefficient, in a
glass envelope with two tinned durnet (CuNiFe) leads. The
device is non-flammable.
ELECTRICAL DATA AND ORDERING INFORMATION
Note
1. Dependent upon R25-tolerance, the dot IV is coloured as follows:
a) for R25
5%, dot IV is coloured gold;
b) for R25
10%, dot IV is coloured silver.
2. R
25
-values, temperature coefficients, catalog numbers and coding.
3. The thermistors have a 12-digit catalog number starting with 2322 626 1. The subsequent 4 digits indicate the resistance and tolerance.
R
25
(k
)
B
25/85
-VALUE
TC
(%/K)
MAX.
TEMPERATURE
(C)
CATALOG NUMBER
2322 626 1....
COLOUR CODE
(see Component outline drawing and note 1)
R
25
5%
R
25
10%
I
II
III
1
2075 K
5%
-
2.3
200
3102
2102
brown
black
red
2.2
2285 K
5%
-
2.6
200
3222
2222
red
red
red
4.7
2485 K
5%
-
2.8
200
3472
2472
yellow
violet
red
10
3750 K
5%
-
4.2
200
3103
2103
brown
black
orange
22
3560 K
5%
-
4.0
200
3223
2223
red
red
orange
47
3750 K
5%
-
4.2
300
3473
2473
yellow
violet
orange
100
3900 K
5%
-
4.4
300
3104
2104
brown black
yellow
220
3860 K
5%
-
4.3
300
3224
2224
red
red
yellow
470
3950 K
5%
-
4.5
300
3474
2474
yellow
violet
yellow
1000
4100 K
5%
-
4.6
300
3105
2105
brown
black
green
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