2381 640 63154 Vishay BCcomponents, 2381 640 63154 Datasheet - Page 4

• Manufacturer Part Number: 2381 640 63154
• Description: NTC-Resistor wired up150kOhm
• Manufacturer: Vishay BCcomponents

www.vishay.com
78
2381 640 3/4/6..../NTCLE100E3...B0/T1/T2
Vishay BCcomponents
R
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.
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”):
where:
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.
Notes
1. Temperature < 25 °C
2. Temperature ≥ 25 °C
NUMBER
PARAMETER FOR DETERMINING NOMINAL RESISTANCE VALUES
T
A, B, C, D, A
depending on the material concerned; see table below.
R
this event 25 °C).
T is the temperature in K.
ref
10
11
12
13
VALUE AND TOLERANCE
1
2
3
4
5
6
7
8
9
is the resistance value at a reference temperature (in
T (R) = A
B
3528
3528
2880
2990
3041
3136
3390
3560
3740
3977
4090
4190
4370
4570
(K)
25/85
R(T) R ref
⎛
⎝
1)
2)
1
with Bn = 2880K
with Bn = 3990K
with Bn = 3041K
with Bn = 3136K
with Bn = 3390K
with Bn = 3528K
with Bn = 3560K
with Bn = 3740K
with Bn = 4090K
with Bn = 4190K
with Bn = 4370K
with Bn = 4570K
with Bn =3977K
1
+
, B
–
B
NAME
1
mat O.
mat Q.
mat R.
mat S.
mat A.
mat P.
mat.H
mat.B
mat.C
mat.D
mat.E
mat.F
mat.I
ln
1
, C
--------- -
R
×
R
ref
e
1
(
+
A
and D
+
C
B T ⁄
VALUE
TOL. B
1
ln
0.75
0.75
0.5
1.5
1.5
2.5
1.5
%
2
3
3
3
3
3
2
+
--------- -
R
B T
R
1
ref
⁄
For technical questions, contact: [e-mail]
2
are constant values
-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
-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
-17.6439 6022.726 -203157 -7.183526E+06 3.354016E-03 2.264097E-04 3.278184E-06 1.097628E-07
+
+
-9.094
C T
D
A
NTC Thermistors, Accuracy Line
⁄
1
ln
3
)
3
--------- -
R
R
ref
2251.74
(K)
⎞
⎠
B
–
1
-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
-194267 -6.869149E+06 3.354016E-03 2.367720E-04 3.585140E-06 1.255349E-07
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
-98275 -7.522357E+06 3.354016E-03 2.744032E-04 3.666944E-06 1.375492E-07
(1)
(2)
(K
C
2
)
DETERMINATION OF THE
RESISTANCE/TEMPERATURE DEVIATION
FROM NOMINAL VALUE
The total resistance deviation is obtained by combining
the ‘R
B-tolerance’.
When:
then:
When:
then:
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:
Z
=
ΔT
A NTC with a R
between - 1.17 and + 1.17 °C.
(K
X = R
Y = resistance deviation due to B-tolerance
Z = complete resistance deviation,
TCR = temperature coefficient
ΔT = temperature deviation,
{
=
D
1.05
=
3
⎧
⎨
⎩
)
------------ -
TCR
ΔT
1
25
Z
Z
25
×
+
-tolerance’ and the ‘resistance deviation due to
=
=
1.0089
-tolerance
--------- -
100
=
5
------------ -
TCR
⎛
⎝
5.93
---------- -
5.08
1
Z
+
A
×
--------- -
100
25
–
1
=
X
1
1
1.167 °C
- value of 10 kΩ has a value of 32.56 kΩ
}
⎞
⎠
+
×
0.89
---------- -
100
×
⎛
⎝
100%
1
+
(K
–
--------- -
100
B
Y
(
1
−1
1
≈
⎫
⎬
⎭
=
⎞
⎠
)
1.17
×
5.9345%
–
100%
1
° C)
·
×
Document Number: 29049
100 %
(K
C
(
−2
1
≈
Revision: 06-Oct-06
)
5.93%
or Z ≈ X + Y
)
(K
D
−3
1
)