2381 640 3/4/6..../NTCLE100E3...B0/T1/T2
Vishay BCcomponents
NTC Thermistors, Radial Leaded, Standard Precision
FEATURES
•
Accuracy over a wide temperature range
•
High stability over a long life
•
Excellent price/performance ratio
•
UL recognized, file E148885
•
Old part number was 2322 640 3/4/6....
•
Component in accordance to RoHS 2002/95/EC and
WEEE 2002/96/EC
QUICK REFERENCE DATA
PARAMETER
Resistance value at 25
°C
Tolerance on
R
25
- value
B
25/85
- value
Tolerance on B
25/85
- value
Maximum dissipation
Dissipation factor
δ
(for information only)
Response time
Thermal time constant
τ
(for information only)
Operating temperature range:
at zero dissipation; continuously
at zero dissipation;
for short periods
at maximum dissipation
Climatic category acc. IEC 60068-1
Weight
- 40 °C to + 125 °C
≤
150 °C
0 °C to 55 °C
40/125/56
≈
0.3 g
VALUE
3.3
Ω
to 470 kΩ
± 2 %; ± 3 %; ± 5 %
2880 K to 4570 K
± 0.5 % to ± 3 %
500 mW
7 mW/K
8.5 mW/K
(for
R
25
value
≤
680
Ω)
1.2 s
15 s
APPLICATIONS
•
Temperature
compensation
sensing
and
control,
temperature
These thermistors have a negative temperature coefficient.
The device consists of a chip with two solid copper tin plated
leads. It is grey lacquered and color coded, but not insulated.
PACKAGING
The thermistors are packed in bulk or tape on reel;
see code numbers and relevant packaging quantities.
DESIGN-IN SUPPORT
For complete Curve Computation, visit:
http://www.vishay.com/thermistors/curve-computation-list/
MARKING
The thermistors are marked with colored bands; see
dimensions drawing and “Electrical data and ordering
information”.
MOUNTING
By soldering in any position.
ELECTRICAL DATA AND ORDERING INFORMATION
R
25
[Ω]
3.3
4.7
6.8
10
15
22
33
47
68
100
150
220
330
470
680
B
25/85
- VALUE
[K]
2880
2880
2880
2990
3041
3136
3390
3390
3390
3560
3560
3560
3560
3560
3560
[± %]
3
3
3
3
3
3
3
3
3
1.5
1.5
1.5
1.5
1.5
1.5
UL
APPROVED
[Y/N]
N
N
N
N
N
N
Y
Y
Y
N
N
N
N
N
N
12NC ORDERING CODE
2381 640 6....
(1)
*338
*478
*688
*109
*159
*229
*339
*479
*689
*101
*151
*221
*331
*471
*681
SAP MATERIAL NO.
NTCLE100E3......
(2)
338*B0
478*B0
688*B0
109*B0
159*B0
229*B0
339*B0
479*B0
689*B0
101*B0
151*B0
221*B0
331*B0
471*B0
681*B0
COLOR CODE
(3)
I
orange
yellow
blue
brown
brown
red
orange
yellow
blue
brown
brown
red
orange
yellow
blue
II
orange
violet
grey
black
green
red
orange
violet
grey
black
green
red
orange
violet
grey
III
gold
gold
gold
black
black
black
black
black
black
brown
brown
brown
brown
brown
brown
Document Number: 29049
Revision: 16-Sep-08
For technical questions, contact: nlr@vishay.com
www.vishay.com
75
2381 640 3/4/6..../NTCLE100E3...B0/T1/T2
Vishay BCcomponents
NTC Thermistors, Radial Leaded,
Standard Precision
ELECTRICAL DATA AND ORDERING INFORMATION
R
25
[Ω]
1000
1500
2000
2200
2700
3300
4700
5000
6800
10 000
12 000
15 000
22 000
33 000
47 000
50 000
68 000
100 000
150 000
220 000
330 000
470 000
B
25/85
- VALUE
[K]
3528
3528
3528
3977
3977
3977
3977
3977
3977
3977
3740
3740
3740
4090
4090
4190
4190
4190
4370
4370
4570
4570
[± %]
0.5
0.5
0.5
0.75
0.75
0.75
0.75
0.75
0.75
0.75
2
2
2
1.5
1.5
1.5
1.5
1.5
2.5
2.5
1.5
1.5
UL
APPROVED
[Y/N]
N
N
N
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
N
N
N
N
N
Y
Y
N
N
12NC ORDERING CODE
2381 640 6....
(1)
*102
*152
*202
*222
*272
*332
*472
*502
*682
*103
*123
*153
*223
*333
*473
*503
*683
*104
*154
*224
*334
*474
SAP MATERIAL NO.
NTCLE100E3......
(2)
102*B0
152*B0
202*B0
222*B0
272*B0
332*B0
472*B0
502*B0
682*B0
103*B0
123*B0
153*B0
223*B0
333*B0
473*B0
503*B0
683*B0
104*B0
154*B0
224*B0
334*B0
474*B0
COLOR CODE
(3)
I
brown
brown
red
red
red
orange
yellow
green
blue
brown
brown
brown
red
orange
yellow
green
blue
brown
brown
red
orange
yellow
II
black
green
black
red
violet
orange
violet
black
grey
black
red
green
red
orange
violet
black
grey
black
green
red
orange
violet
III
red
red
red
red
red
red
red
red
red
orange
orange
orange
orange
orange
orange
orange
orange
yellow
yellow
yellow
yellow
yellow
Notes:
(1)
Replace * in 12NC by 3 for 5 %, 6 for 3 %, 4 for 2 %
(2)
Replace * in SAP by J for 5 %, H for 3 %, G for 2 %
(3)
For R ± 2 % band IV is red, ± 3 % band IV is orange, ± 5 % band IV is gold
25
DIMENSIONS
in millimeters
B
IV
III
II
I
T
DERATING AND TEMPERATURE TOLERANCES
P
(%)
100
Power derating curve
H
2
H
1
L
d
P
0
- 40
0
55
85
125
T
amb
(°C)
2381 640 6.338 to 6.474
PHYSICAL DIMENSIONS FOR RELEVANT TYPE
(all dimensions in mm)
CODE NUMBER
2381 640 .....
6.338 to 6.221
6.331 to 6.474
www.vishay.com
76
B
max.
5.0
3.3 ± 0.5
d
0.6 ± 0.06
0.6 ± 0.06
H
1
MIN.
1.0
1.0
MAX.
4.0
3.0
H
2 max.
6.0
6.0
L
24 ± 1.5
24 ± 1.5
P
2.54
2.54
T
max.
4.0
3.0
For technical questions, contact: nlr@vishay.com
Document Number: 29049
Revision: 16-Sep-08
2381 640 3/4/6..../NTCLE100E3...B0/T1/T2
NTC Thermistors, Radial Leaded,
Standard Precision
TEMPERATURE DEVIATION AS A FUNCTION
OF THE AMBIENT TEMPERATURE
ΔT
(K)
2.5
2
2.0
3
1.5
4
3.0
1
Curves
valid
for 2.2 to 10 kΩ
Curve 1:
ΔR
25
/R
25
= 5
%
Curve 2:
ΔR
25
/R
25
= 3
%
Curve 3:
ΔR
25
/R
25
= 2
%
Curve 4:
ΔR
25
/R
25
= 1
%
(for 2381 640 5.... series only)
Vishay BCcomponents
TEMPERATURE DEVIATION AS A FUNCTION
OF THE AMBIENT TEMPERATURE
5
ΔT
(K)
4
2
3
3
1
Curves
valid
for 12 to 22 kΩ
Curve 1:
ΔR
25
/R
25
= 5
%
Curve 2:
ΔR
25
/R
25
= 3
%
Curve 3:
ΔR
25
/R
25
= 2
%
2
1.0
0.5
1
0
-
40
0
40
80
120
T (°C)
160
0
-
40
0
40
80
120
T (°C)
160
TEMPERATURE DEVIATION AS A FUNCTION
OF THE AMBIENT TEMPERATURE
ΔT
(K)
4.0
3.5
3.0
2.5
4
2.0
1.5
1.0
0.5
0
-
40
2
3
1
Curves
valid
for 33 to 47 kΩ
Curve 1:
ΔR
25
/R
25
= 5
%
Curve 2:
ΔR
25
/R
25
= 3
%
Curve 3:
ΔR
25
/R
25
= 2
%
Curve 4:
ΔR
25
/R
25
= 1
%
(for 2381 640 5.... series only)
TEMPERATURE DEVIATION AS A FUNCTION
OF THE AMBIENT TEMPERATURE
ΔT
(K)
4.0
1
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
-
40
2
3
4
Curves
valid
for 68 to 100 kΩ
Curve 1:
ΔR
25
/R
25
= 5
%
Curve 2:
ΔR
25
/R
25
= 3
%
Curve 3:
ΔR
25
/R
25
= 2
%
Curve 4:
ΔR
25
/R
25
= 1
%
(for 2381 640 5.... series only)
0
40
80
120
T (°C)
160
0
40
80
120
T (°C)
160
TEMPERATURE DEVIATION AS A FUNCTION
OF THE AMBIENT TEMPERATURE
ΔT
(K)
6
1
2
3
Curves
valid
for 150 to 220 kΩ
Curve 1:
ΔR
25
/R
25
= 5
%
Curve 2:
ΔR
25
/R
25
= 3
%
Curve 3:
ΔR
25
/R
25
= 2
%
TEMPERATURE DEVIATION AS A FUNCTION
OF THE AMBIENT TEMPERATURE
ΔT
(K)
4.0
3.5
3.0
2.5
2.0
1.5
1
Curves
valid
for 330 to 470 kΩ
Curve 1:
ΔR
25
/R
25
= 5
%
Curve 2:
ΔR
25
/R
25
= 3
%
Curve 3:
ΔR
25
/R
25
= 2
%
5
2
3
4
3
2
1.0
1
0.5
0
-
40
0
40
80
120
T (°C)
160
0
-
40
0
40
80
120
T (°C)
160
Document Number: 29049
Revision: 16-Sep-08
For technical questions, contact: nlr@vishay.com
www.vishay.com
77
2381 640 3/4/6..../NTCLE100E3...B0/T1/T2
Vishay BCcomponents
R
T
VALUE AND TOLERANCE
These thermistors have a narrow tolerance on the B-value,
the result of which provides a very small tolerance on the
nominal resistance value over a wide temperature range. For
this reason the usual graphs of
R
= f(T) are replaced by
Resistance Values at Intermediate Temperatures Tables,
together with a formula to calculate the characteristics with a
high precision.
NTC Thermistors, Radial Leaded,
Standard Precision
DETERMINATION OF THE
RESISTANCE/TEMPERATURE DEVIATION
FROM NOMINAL VALUE
The total resistance deviation is obtained by combining
the ‘R
25
-tolerance’ and the ‘resistance deviation due to
B-tolerance’.
When:
X =
R
25
-tolerance
Y = resistance deviation due to B-tolerance
Z = complete resistance deviation,
X
Y
then:
Z
=
⎛
1
+
---------
⎞ × ⎛
1
+
---------
⎞
–
1
×
100 %
or Z
≈
X + Y
-
⎠ ⎝
-
⎠
⎝
100
100
FORMULAE TO DETERMINE NOMINAL
RESISTANCE VALUES
The resistance values at intermediate temperatures, or the
operating temperature values, can be calculated using the
following interpolation laws
(extended “Steinhart
and Hart”):
R(T)
–
R
ref
×
e
(
A
+
B
⁄
T
+
B
⁄
T
+
C
⁄
T
)
2
3
(1)
(2)
When:
TCR = temperature coefficient
ΔT
= temperature deviation,
Z
then:
ΔT
=
------------
-
TCR
2
R
3
R
–
1
R
-
-
-
T (R) =
⎛
A
1
+
B
1
ln ---------
+
C
1
ln ---------
+
D
1
ln ---------
⎞
⎝
R
ref
R
ref
⎠
R
ref
where:
A, B, C, D, A
1
, B
1
, C
1
and D
1
are constant values
depending on the material concerned; see table below.
R
ref
is the resistance value at a reference temperature (in
this event 25 °C).
T is the temperature in K.
Formulae numbered and are interchangeable with an
error of max. 0.005 °C in the range 25 °C to 125 °C and
max. 0.015 °C in the range - 40 °C to + 25 °C.
The temperature tolerances are plotted in the graphs on the
previous page.
Example:
at 0 °C, assume X = 5 %, Y = 0.89 % and
TCR = 5.08 %/K (see Table ), then:
⎧
5
Z
=
⎨
1
+
---------
-
100
⎩
⎫
0,89
×
1
+
----------
–
1
⎬ ×
100%
-
100
⎭
·
=
{
1,05
×
1,0089
–
1
} ×
100%
=
5,9345%
( ≈
5,93%
)
Z
5,93
ΔT
=
------------
=
----------
=
1,167
°C ( ≈
1,17
°
C)
-
-
TCR 5,08
A NTC with a
R
25
- value of 10 kΩ has a value of 32.56 kΩ
between - 1.17 and + 1.17 °C.
PARAMETER FOR DETERMINING NOMINAL RESISTANCE VALUES
B
25/85
NUMBER (K)
1
2
3
4
5
6
7
8
9
10
11
12
13
2880
2990
3041
3136
3390
3528
(1)
3528
(2)
3560
3740
3977
4090
4190
4370
4570
NAME
mat O.
with Bn = 2880K
mat P.
with Bn = 3990K
mat Q.
with Bn = 3041K
mat R.
with Bn = 3136K
mat S.
with Bn = 3390K
mat.I
with Bn = 3528K
mat.H
with Bn = 3560K
mat.B
with Bn = 3740K
mat A.
with Bn =3977K
mat.C
with Bn = 4090K
mat.D
with Bn = 4190K
mat.E
with Bn = 4370K
mat.F
with Bn = 4570K
TOL. B
VALUE
%
3
3
3
3
3
0.5
1.5
2
0.75
1.5
1.5
2.5
1.5
A
-9.094
B
(K)
2251.74
C
(K
2
)
D
(K
3
)
A
1
B
1
(K
-1
)
C
1
(K
-2
)
D
1
(K
-3
)
229098 -2.744820E+07 3.354016E-03 3.495020E-04 2.095959E-06 4.260615E-07
132336 -2.502510E+07 3.354016E-03 3.415560E-04 4.955455E-06 4.364236E-07
-102895 5.166520E+05 3.354016E-03 3.349290E-04 3.683843E-06 7.050455E-07
-402687 3.196830E+07 3.354016E-03 3.243880E-04 2.658012E-06 -2.701560E-07
-232807 1.509643E+07 3.354016E-03 2.993410E-04 2.135133E-06 -5.672000E-09
-10.2296 2887.62
-11.1334 3658.73
-12.4493 4702.74
-12.6814 4391.97
-12.0596 3687.667 -7617.13 -5.914730E+06 3.354016E-03 2.909670E-04 1.632136E-06 7.192200E-08
-21.0704 11903.95 -2504699 2.470338E+08 3.354016E-03 2.933908E-04 3.494314E-06 -7.712690E-07
-13.0723 4190.574 -47158.4 -1.199256E+07 3.354016E-03 2.884193E-04 4.118032E-06 1.786790E-07
-13.8973 4557.725
-98275 -7.522357E+06 3.354016E-03 2.744032E-04 3.666944E-06 1.375492E-07
-14.6337 4791.842 -115334 -3.730535E+06 3.354016E-03 2.569850E-04 2.620131E-06 6.383091E-08
-15.5322 5229.973 -160451 -5.414091E+06 3.354016E-03 2.519107E-04 3.510939E-06 1.105179E-07
-16.0349 5459.339 -191141 -3.328322E+06 3.354016E-03 2.460382E-04 3.405377E-06 1.034240E-07
-16.8717 5759.15
-194267 -6.869149E+06 3.354016E-03 2.367720E-04 3.585140E-06 1.255349E-07
-17.6439 6022.726 -203157 -7.183526E+06 3.354016E-03 2.264097E-04 3.278184E-06 1.097628E-07
Notes:
(1)
Temperature < 25 °C
(2)
Temperature
≥
25 °C
www.vishay.com
78
For technical questions, contact: nlr@vishay.com
Document Number: 29049
Revision: 16-Sep-08
2381 640 3/4/6..../NTCLE100E3...B0/T1/T2
NTC Thermistors, Radial Leaded,
Standard Precision
Vishay BCcomponents
For complete Curve Computation, visit: http://www.vishay.com/thermistors/curve-computation-list/
RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES WITH
R
25
AT 3.3, 4.7 AND 6.8
Ω
T
oper
[°C]
PART NR.
2381 640 **338
NTCLE100E3338***
R
T
[Ω]
45.00
35.25
27.84
22.16
17.78
14.37
11.69
9.582
7.904
6.560
5.479
4.602
3.886
3.300
2.816
2.415
2.081
1.801
1.566
1.367
1.198
1.054
0.9308
0.8248
0.7334
0.6542
0.5854
0.5255
0.4730
0.4270
0.3865
0.3508
0.3192
0.2911
0.2661
0.2438
0.2238
0.2059
0.1899
PART NR.
2381 640 **478
NTCLE100E3478***
R
T
[Ω]
64.09
50.20
39.64
31.56
25.32
20.46
16.65
13.65
11.26
9.344
7.803
6.554
5.535
4.700
4.011
3.440
2.964
2.566
2.230
1.947
1.706
1.501
1.326
1.175
1.044
0.9318
0.8338
0.7484
0.6737
0.6082
0.5505
0.4996
0.4545
0.4145
0.3789
0.3472
0.3188
0.2933
0.2704
PART NR.
2381 640 **688
NTCLE100E3688***
R
T
[Ω]
92.73
72.63
57.36
45.66
36.63
29.60
24.09
19.74
16.29
13.52
11.29
9.482
8.008
6.800
5.803
4.977
4.289
3.712
3.227
2.817
2.469
2.172
1.918
1.700
1.511
1.348
1.206
1.083
0.9748
0.8799
0.7965
0.7228
0.6576
0.5998
0.5483
0.5023
0.4612
0.4244
0.3912
TCR
[%/K]
ΔR/R
DUE TO B
tol.
[%]
- 40
- 35
- 30
- 25
- 20
- 15
- 10
-5
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
120
125
130
135
140
145
150
- 4.97
- 4.80
- 4.64
- 4.48
- 4.33
- 4.19
- 4.05
- 3.92
- 3.79
- 3.66
- 3.55
- 3.43
- 3.32
- 3.22
- 3.12
- 3.02
- 2.93
- 2.84
- 2.76
- 2.68
- 2.60
- 2.52
- 2.45
- 2.38
- 2.32
- 2.25
- 2.19
- 2.13
- 2.07
- 2.02
- 1.97
- 1.92
- 1.87
- 1.82
- 1.77
- 1.73
- 1.69
- 1.65
- 1.61
8.08
7.30
6.55
5.84
5.15
4.49
3.85
3.24
2.65
2.08
1.54
1.01
0.49
0.00
0.48
0.94
1.39
1.82
2.24
2.65
3.04
3.43
3.80
4.16
4.51
4.85
5.19
5.51
5.82
6.13
6.43
6.72
7.00
7.28
7.55
7.81
8.07
8.32
8.56
Document Number: 29049
Revision: 16-Sep-08
For technical questions, contact: nlr@vishay.com
www.vishay.com
79
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