NTC Thermistors, Accuracy Line
2322 640 3/4/6....
Vishay BCcomponents
www.vishay.com For technical questions contact: nlr
.europe@vishay.com Document Number: 29049
70 Revision: 10-Oct-03
FEATURES
•
Accuracy over a wide temperature range
•
High stability over a long life
•
Excellent price/performance ratio
APPLICATIONS
•
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.
PACKAGING
The thermistors are packed in bulk or tape on reel;
see code numbers and relevant packaging quantities.
QUICK REFERENCE DATA
PARAMETER VALUE
Resistance value at 25
°
C 3.3
Ω
to 470 k
Ω
Tolerance on R
25
-value
±
2%;
±
3%;
±
5%;
±
10%
Tolerance on B
25/85
-value
±
0.5% to
±
3%
Maximum dissipation 500 mW
Dissipation factor
δ
(for information only)
7 mW/K
8.5 mW/K
(for 640..338 to 689)
Response time 1.2 s
Thermal time constant
τ
(for
information only)
15 s
Operating temperature range:
at zero dissipation; continuously
−
40 to +125
°
C
at zero dissipation;
for short periods
≤
150
°
C
at maximum dissipation (500 mW) 0 to 55
°
C
Climatic category 40/125/56
Mass
≈
0.3 g
ELECTRICAL DATA AND ORDERING INFORMATION
R
25
(
ΩΩ
ΩΩ
)
B
25/85
-VALUE
CATALOG NUMBER 2322 640 6....
COLOR CODE
(see dimensions
drawing and note 1)
R
25
±±
±±
2% R
25
±±
±±
3% R
25
±±
±±
5% R
25
±±
±±
10% I II III
3.3 2880 K
±
3% 4338 6338 3338 2338 orange orange gold
4.7 2880 K
±
3% 4478 6478 3478 2478 yellow violet gold
6.8 2880 K
±
3% 4688 6688 3688 2688 blue grey gold
10 2990 K
±
3% 4109 6109 3109 2109 brown black black
15 3041 K
±
3% 4159 6159 3159 2159 brown green black
22 3136 K
±
3% 4229 6229 3229 2229 red red black
33 3390 K
±
3% 4339 6339 3339 2339 orange orange black
47 3390 K
±
3% 4479 6479 3479 2479 yellow violet black
68 3390 K
±
3% 4689 6689 3689 2689 blue grey black
100 3560 K
±
0.75% 4101 6101 3101 2101 brown black brown
150 3560 K
±
0.75% 4151 6151 3151 2151 brown green brown
220 3560 K
±
0.75% 4221 6221 3221 2221 red red brown
330 3560 K
±
0.75% 4331 6331 3331 2331 orange orange brown
470 3560 K
±
0.5% 4471 6471 3471 2471 yellow violet brown
680 3560 K
±
0.5% 4681 6681 3681 2681 blue grey brown
1000 3528 K
±
0.5% 4102 6102 3102 2102 brown black red
1500 3528 K
±
0.5% 4152 6152 3152 2152 brown green red