P1/8
Chip NTC Thermistor
1.Part Numbering.
(ex.)
for temperature sensor and temperature compensation 0603 size
NC
U
18
Product ID Series Dimensions
Characteristics
XH
Temperature
103
Resistance
Specifications
F
Resistance
Tolerance
6S
Individual
RB
Packaging
2.Ratings
2.1 F SERIES
Resistance
(ohm)
at 25°C
(*1)
NCU18XH103F6SRB
NCU18WB473F6SRB
NCU18WF104F6SRB
10k±1%
47k±1%
100k±1%
P/N
(*2)
3380±1%
4050±1%
4250±1%
(mA)
(*1,*3)
0.100
0.046
0.032
2.2 E SERIES
Resistance
(ohm)
at 25°C
(*1)
10k±3%
47k±3%
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P/N
(*2)
(mA)
(*1,*3)
3380±1%
4050±1%
4250±2%
4500±3%
4500±3%
4500±3%
0.100
0.046
0.032
100k±3%
150k±3%
220k±3%
470k±3%
0.026
0.021
0.015
B-constant
(K)
25/50°C
Maximum
operating
current
NCU18XH103E6SRB
NCU18WB473E6SRB
NCU18WF104E6SRB
NCU18WM154E6SRB
NCU18WM224E6SRB
NCU18WM474E6SRB
2.3 J SERIES
P/N
Resistance
(ohm)
at 25°C
(*1)
10k±5%
47k±5%
B-constant
(K)
25/50°C
(*2)
3380±1%
4050±1%
4250±2%
4500±3%
4500±3%
4500±3%
Maximum
operating
current
(mA)
(*1,*3)
NCU18XH103J6SRB
0.100
0.046
0.032
0.026
0.021
0.015
ef
NCU18WB473J6SRB
NCU18WF104J6SRB
100k±5%
150k±5%
220k±5%
470k±5%
NCU18WM154J6SRB
NCU18WM224J6SRB
NCU18WM474J6SRB
R
*1 : NTC thermistor is measured at 25°C in still air, as a single unit without mounting.
*2 : B-constant is a constant representing the resistance temperature characteristic of NTC thermistor.
*3 : NTC Thermistor raises 0.1°C more by maximum operating current.
*4 : Voltage range shown on Fig 2.4, can keep NTC Temperature less than 0.1°C rise.
*5 : Voltage at which self-heating becomes 0.1°C when applied to an unmounted NTC thermistor
Please use NTC Thermistor by lower voltage than the maximum operating voltage curve.
Please consult with us on off-specification usage.
MURATA MANUFACUTURING CO.,LTD.
This information may be changed without a previous notice.
O
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Maximum
voltage
(V)
(*4)
Operating
Temperature
Range
(°C)
(*5)
B-constant
(K)
25/50°C
Maximum
operating
current
Thermal
Dissipation
Constant
(mW/°C)
(*1)
5.00
Approx.
1.0
Maximum
voltage
(V)
(*4)
Thermal
Dissipation
Constant
(mW/°C)
(*1)
5.00
Approx.
1.0
Maximum
voltage
(V)
(*4)
Thermal
Dissipation
Constant
(mW/°C)
(*1)
5.00
Approx.
1.0
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Graph of
maximum
operating
voltage
①
②
③
-40 ~ +150
Operating
Temperature
Range
(°C)
Graph of
maximum
operating
voltage
(*5)
-40 ~ +150
①
②
③
④
⑤
⑥
Operating
Temperature
Range
(°C)
Graph of
maximum
operating
voltage
(*5)
-40 ~ +150
①
②
③
④
⑤
⑥
P2/8
2.4
Graph of Maximum Operating Voltage Reduction Characteristics
10
①XH103
②WB473
③WF104
er
en
ce
1
Maximum operating voltage（V)
ef
R
0.1
-50
-25
0
25
50
75
100
125
150
175
MURATA MANUFACUTURING CO.,LTD.
This information may be changed without a previous notice.
O
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⑥WM474
⑥
⑤
④
③
②
①
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④WM154
⑤WM224
P3/8
3.Dimensions
1.6±0.15
0.8±0.15
1.Thermistor
2.Electrode (Cu System + Ni Plating + Sn Plating)
2
1
(Unit : mm)
4. Quantity (Standard Quantity)
R
ef
MURATA MANUFACUTURING CO.,LTD.
This information may be changed without a previous notice.
er
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ce
Products quantity in a reel
4,000 pcs./1 reel
O
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0.2~0.6
0.2~0.6
0.8±0.15
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P4/8
CAUTION
Do not use chip NTC Thermistor under the following environments
; These all these factors can deteriorate the characteristics of product or
can cause the failures and burning-out.
Outside temperature influences the resistance value of this product,
therefore is important to control the fluctuation of the environment temperature
when measuring the resistance value of this product.
er
en
ce
Murata’s website explains it by using video in following URL:
Temp.
(℃)
20
21
22
23
24
25
26
27
28
29
30
• POINT1: Please measure the resistance value without touching a device and
a substrate by hand or finger directly.
• POINT2: Please install a thermometer at your measuring area in order to recognize
the environmental temperature.
http://www.murata.com/en-us/support/faqs/products/thermistor/ntc/pct/0001
(For Example）Resistance value changes
Murata P/N
：
NCU15XH103F60RC
(Resistance @25℃ :10kΩ+/-1%, B-constant : 3380K+/-1%）
Resistance value change approx.4% per 1℃ difference
around 25℃
R
ef
MURATA MANUFACUTURING CO.,LTD.
This information may be changed without a previous notice.
O
nl
Resist.
(k ohm)
12.081
11.628
11.195
10.780
10.382
10.000
9.634
9.284
8.947
8.624
8.315
Changes
%
20.8
%
16.3
%
12.0
%
7.8
%
3.8
%
0.0
%
-3.7
%
-7.2
%
-10.5
%
-13.8
%
-16.9
%
(1) High humidity environment, or in close proximity to splashing water.
A water droplet between the outer electrodes needs to be avoided completely.
(Ex. Resistance abnormality, Short (includes Sn/Cu ion migration))
(2) corrosive or deoxidizing gas (Cl
2
, H
2
S, NH
3
, SO
X
, NO
X
, etc.)
(Ex. Resistance abnormality, Short (includes Sn/Cu ion migration))
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P5/8
for users
CAUTION
1. Applying the power exceeding the specified ‘Rated Electric Power’ may causes deterioration
of the characteristics or destruction of this product. Do not apply the power exceeding the
‘Rated Electric Power’.
2. Do not use chip NTC Thermistor under the following environments because all these
factors can deteriorate the characteristics of product or can cause failures
and burning-out.
(1) volatile or flammable gas
(Ex. Resistance abnormality, Emit smoke, Ignition)
(2) dusty environment
(Ex. Short)
(3) under vacuum, reducing pressure or high-pressure
(Ex. Resistance abnormality)
(4) place with salt water, oils, chemical liquids or organic solvents
(Ex. Resistance abnormality, Short)
(5) high vibration environment
(Ex. Open)
(6) other place, That is similar to the above-mentioned environments
3. Please contact us before using this product for the under-mentioned applications requiring,
especially high reliability, in order to prevent defects which might directly cause damage to
other party’s life, body or property. (Listed below.)
(1) Aircraft equipment
(2) Aerospace equipment
(3) Undersea equipment
(4) Power plant control equipment
(5) Medical equipment
(6) Transportation equipment (automobiles, trains, ships, etc.)
(7) Traffic signal equipment
(8) Disaster prevention / Crime prevention equipment
(9) Data-processing equipment
(10) Applications of similar complexity or with reliability requirements comparable to the
applications listed in the above
4. Be sure to provide an appropriate fail-safe function on your product to prevent a second
damage that may be caused by the abnormal function or the failure of our product.
R
ef
1. Use this product within the specified temperature range. Higher temperature may cause
deterioration of the characteristics or the material quality of this product.
2. Following conditions should be kept in order to avoid deterioration of solderability of outer
electrodes and the characteristics of this products.
(1) Storage Condition: Temperature : -10°C to +40°C
Humidity : less than 75 %RH, without dewing.
(2) Storage Term:
Use this product within 6 months after delivery.
If 6 months or more elapsed, please check the solderability before use.
Do not store this product in corrosive gas (SOX, Cl, etc.),
(3) Storage Place:
nor in direct sunlight.
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NOTICE
MURATA MANUFACUTURING CO.,LTD.
This information may be changed without a previous notice.
O
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