鈥?/div>
Temperature sensing and control
These thermistors have a negative temperature coefficient.
The device consists of a chip with two tinned solid
copper-plated leads. It is grey lacquered and colour coded,
but not insulated.
QUICK REFERENCE DATA
PARAMETER
Resistance value at 25
擄
C
Tolerance on R
25
-value
Tolerance on B
25/85
-value
Maximum dissipation
Dissipation factor
未
(for information only)
Response time
Thermal time constant
蟿
(for
information only)
Operating temperature range:
at zero dissipation; continuously
at zero dissipation;
for short periods
at maximum dissipation (500 mW)
Climatic category
Mass
VALUE
3.3
鈩?/div>
to 470 k
鈩?/div>
鹵
2%;
鹵
3%;
鹵
5%;
鹵
10%
鹵
0.5% to
鹵
3%
500 mW
7 mW/K
8.5 mW/K
(for 640..338 to 689)
1.2 s
15 s
PACKAGING
The thermistors are packed in bulk or tape on reel;
see code numbers and relevant packaging quantities.
鈭?/div>
40 to +125
擄
C
鈮?/div>
150
擄
C
0 to 55
擄
C
40/125/56
鈮?/div>
0.3 g
ELECTRICAL DATA AND ORDERING INFORMATION
R
25
(
鈩?/div>
)
3.3
4.7
6.8
10
15
22
33
47
68
100
150
220
330
470
680
1000
1500
www.vishay.com
70
B
25/85
-VALUE
R
25
鹵
2%
2880 K
鹵
3%
2880 K
鹵
3%
2880 K
鹵
3%
2990 K
鹵
3%
3041 K
鹵
3%
3136 K
鹵
3%
3390 K
鹵
3%
3390 K
鹵
3%
3390 K
鹵
3%
3560 K
鹵
0.75%
3560 K
鹵
0.75%
3560 K
鹵
0.75%
3560 K
鹵
0.75%
3560 K
鹵
0.5%
3560 K
鹵
0.5%
3528 K
鹵
0.5%
3528 K
鹵
0.5%
4338
4478
4688
4109
4159
4229
4339
4479
4689
4101
4151
4221
4331
4471
4681
4102
4152
CATALOG NUMBER 2322 640 6....
R
25
鹵
3%
6338
6478
6688
6109
6159
6229
6339
6479
6689
6101
6151
6221
6331
6471
6681
6102
6152
R
25
鹵
5%
3338
3478
3688
3109
3159
3229
3339
3479
3689
3101
3151
3221
3331
3471
3681
3102
3152
R
25
鹵
10%
2338
2478
2688
2109
2159
2229
2339
2479
2689
2101
2151
2221
2331
2471
2681
2102
2152
I
orange
yellow
blue
brown
brown
red
orange
yellow
blue
brown
brown
red
orange
yellow
blue
brown
brown
COLOR CODE
(see dimensions
drawing and note 1)
II
orange
violet
grey
black
green
red
orange
violet
grey
black
green
red
orange
violet
grey
black
green
III
gold
gold
gold
black
black
black
black
black
black
brown
brown
brown
brown
brown
brown
red
red
For technical questions contact: nlr.europe@vishay.com
Document Number: 29049
Revision: 10-Oct-03
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