NTCLE203E3272GB0 Vishay, NTCLE203E3272GB0 Datasheet - Page 4

THERMISTOR NTC 2.7K 2% RADIAL

NTCLE203E3272GB0

Manufacturer Part Number
NTCLE203E3272GB0
Description
THERMISTOR NTC 2.7K 2% RADIAL
Manufacturer
Vishay

Specifications of NTCLE203E3272GB0

Resistance In Ohms @ 25°c
2.7K
Resistance Tolerance
±2%
B Value Tolerance
±0.75%
B25/85
3977K
Operating Temperature
-40°C ~ 125°C
Power - Max
100mW
Lead Length
1.58" (40.00mm)
Mounting Type
Through Hole
Package / Case
Radial - Molded Bead
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
B0/50
-
B25/50
-
B25/75
-
B25/100
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
BC2453
NTCLE100E3
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)
(2)
www.vishay.com
60
NUMBER B
T
PARAMETER FOR DETERMINING NOMINAL RESISTANCE VALUES
A, B, C, D, A
depending on the material concerned; see table below.
R
this event 25 °C, R
T is the temperature in K.
Temperature < 25 °C
Temperature  25 °C
ref.
10
11
12
13
VALUE AND TOLERANCE
1
2
3
4
5
6
7
8
9
T
 
is the resistance value at a reference temperature (in
R
3528
3528
= A
2880
2990
3041
3136
3390
3560
3740
3977
4090
4190
4370
4570
25/85
(K)
R
T  
(1)
(2)
1
+
Mat O. with
Bn = 2880K
Bn = 3990K
Mat Q. with
Bn = 3041K
Bn = 3136K
Bn = 3390K
Bn = 3528K
Bn = 3560K
Bn = 3740K
Bn = 4090K
Bn = 4190K
Bn = 4370K
Bn = 4570K
Mat P. with
Mat R. with
Mat S. with
Mat H. with
Mat B. with
Mat A. with
Bn =3977K
Mat C. with
Mat D. with
Mat E. with
=
Mat F. with
Mat I. with
1
B
, B
NAME
R ref
1
ln
ref.
1
--------- -
R
, C
= R
R
ref
e
1
25
+
TOL. B
A
0.75
(%)
C
and D
).
0.5
1.5
1.5
1.5
2.5
1.5
+
3
3
3
3
3
2
1
B T 
ln
2
- 10.2296 2887.62
- 11.1334 3658.73 - 102895 5.166520E+05 3.354016E-03 3.349290E-04 3.683843E-06 7.050455E-07
- 12.4493 4702.74 - 402687 3.196830E+07 3.354016E-03 3.243880E-04 2.658012E-06 - 2.701560E-07
- 12.6814 4391.97 - 232807 1.509643E+07 3.354016E-03 2.993410E-04 2.135133E-06 - 5.672000E-09
- 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
+
--------- -
R
- 9.094
1
R
C T
ref
A
are constant values
+
2
NTC Thermistors, Radial Leaded,
+
D
For technical questions, contact:
D T
1
ln
2251.74
3
3
(K)
B
--------- -
R
R
ref
Standard Precision
1
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
(K
C
(1)
(2)
2
)
(K
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
=
T
A NTC with a R
between - 1.17 °C and + 1.17 °C.
D
X = R
Y = resistance deviation due to B-tolerance
Z = complete resistance deviation,
TCR = temperature coefficient
T = temperature deviation,
3
=
)
=
1.05 1.0089
nlr@vishay.com
----------- -
TCR
T
Z
25
1
Z
25
=
-tolerance” and the “resistance deviation due to
+
-tolerance
=
--------- -
100
=
1
----------- -
TCR
5
5.93
---------- -
5.08
Z
+
A
1
--------- -
100
25
X
-value of 10 k has a value of 32.56 k
=
1
1
1.167 C
 100 %
+
0.89
---------- -
100
1
(K
+
B
-1
--------- -
100
1
Y
)
1
=
1.17
5.9345 %
1
Document Number: 29049
100%
(K
 C
C
-2
100 %
1
)
Revision: 12-Apr-11
( 5.93 %)
or Z  X + Y
(K
D
-3
1
)

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