Document Number: 29062
Revision: 08-May-03
For technical questions contact: nlr.europe@vishay.com
www.vishay.com
1
NTC Thermistors, Glass Encapsulated Miniature Bead
2322 626 2....
Vishay BCc
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
85
°
C in oil.
°
C in air to
PARAMETER
VALUE
Resistance value at 25
Tolerance on R25-value
B25/85-value
Tolerance on B25/85-value
Maximum dissipation at 55
Dissipation factor
Response time; note 1
Thermal time constant
Operating temperature range:
at zero dissipation
°
C
1 k
5%;
to 1 M
10%
±
±
2075 to 4100 K
5%
100 mW
0.8 mW/K
1 s
7.5 s
±
°
C
≈
≈
≈
55 to +200
55 to +300
0 to 55
min. 100 V
°
C or
°
C
C
at maximum dissipation
Dielectric withstanding voltage (RMS)
between terminals and glass envelope
Insulation resistance between
terminals and glass envelope at 10 V
(DC)
Mass
°
min. 10 M
≈
33 mg
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
Very high long term stability
High temperature operation
Resistant to aggressive environments
APPLICATIONS
Temperature measurement and control up to 300
°
C.
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.
2.
R
The thermisters have a 12-digit catalog number starting with 2322 626 2. The subsequent 4 digits indicate the resistance value and tolerance.
25
-values, temperature coefficients and catalog numbers.
R
(k
25
1
2.2
4.7
10
22
47
100
220
470
1000
)
B
25/85
-VALUE
T
(
°
200
200
200
200
200
200
300
300
300
300
max
C)
TC
(%/K)
2.3
2.6
2.8
4.2
4.0
4.2
4.4
4.3
4.5
4.6
CATALOG NUMBER 2322 626 2....
R
25
±
5%
3102
3222
3472
3103
3223
3473
3104
3224
3474
3105
R
25
2102
2222
2472
2103
2223
2473
2104
2224
2474
2105
±
10%
2075 K
2285 K
2485 K
3750 K
3560 K
3750 K
3900 K
3860 K
3950 K
4100 K
±
±
±
±
±
±
±
±
±
±
5%
5%
5%
5%
5%
5%
5%
5%
5%
5%