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Temperature Protection Devices
REMINDERS FOR USING THESE PRODUCTS
Before using these products, be sure to request the delivery specifications.
SAFETY REMINDERS
Please pay sufficient attention to the warnings for safe designing when using this products.
REMINDERS
Incorrect usage may lead to destroyed NTC thermistors and damages or malfunctions with the devices used.
Please use them within the ranges of the ratings and performance provided in the catalog and delivery specifications upon confirming
the environments where they are to be used and installed.
Do not use them outside the operating temperature range.
Do not use them with the ratings or maximum permissible power levels exceeded.
Do not quickly apply 5mW or more of load with the constant-voltage power supply in the NTC thermistors as this may lead to staying in
thermal runaway mode or the red-shorting of chips.
Please be cautious of the applied voltage in thermistors as instruments may malfunction with the lowering of resistance due to self
heating.
With instruments that consumers can touch the thermistors with their hands, please carefully warn them not to touch the thermistors.
Store them in locations where the temperature is 10°C to +40°C and the relative humidity is 75% or below, avoid environments where
there are sudden changes in temperatures, direct sunlight, corrosive gas, grit, or dust, and keep them packed in a manner where no
loading stress is applied in order to avoid deterioration and damage. (please use them within six months.)
When sealing thermistors, please do so upon first considering the type, quantity, hardening conditions, and adhesiveness of the seal-
ing material and confirming its reliability.
Avoid powerful vibrations, impact (such as by dropping), pressure, etc. on thermistors that exceed the prescribed levels.
Do not use them for long periods of time in environments with a relative humidity of over 85%. (this excludes cases where countermea-
sures have been taken.)
Do not use them in the following environments. (this excludes cases where countermeasures have been taken.)
・Corrosive
gases (Cl
2
, NH
3
, SOx, NOx, etc.)
・Environments
with highly conductive substances (electrolytes, water, saltwater, etc.)
・Environments
with acid, alkali, or organic solvents
・Dusty
areas
Please observe the following precautions when attaching them to substrates as failure to do so may result in destruction or malfunction.
・Do
not let the substrates get warped or twisted at any time during the soldering.
・The
landing size must be even on both the left and right sides.
・Do
not use items that have been dropped or detached.
・Do
not allow the adherence of more solder than needed.
Reflow mounting is recommended with NTC thermistors, and not flow (dip) mounting.
Attaching or making corrections with a soldering iron is not recommended as it can lead to troubles such as significant distorting due to
thermal shock or cracking. If a soldering iron must be used, it should be 20W or below with the temperature of the tip at 350°C or
below, and at a maximum of 5 seconds of soldering time. Also, do not let the tip of the soldering iron come in direct contact with the
chips.
Please use a substance such as resin that does not generate hydrogen (H
2
) when forming insulation film over chips.
Please contact our sales offices when considering the use of the products listed on this catalog for applications, whose performance
and/or quality require a more stringent level of safety or reliability, or whose failure, malfunction or trouble could cause serious damage
to society, person or property ('specific uses' such as automobiles, airplanes,medical instruments, nuclear devices, etc.) as well as
when considering the use for applications that exceed the range and conditions of this catalog.
Please note that we are not responsible for any damages or losses incurred resulting from the use of these products that exceeds the
range and conditions of this catalog or specific uses.
Please take appropriate measures such as acquiring protective circuits and devices that meet the uses, applications, and conditions of
the instruments and keeping backup circuits.
20171213 / tpd_commercial_ntc-thermistor_ntcg_en.fm
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Temperature Protection Devices
NTC thermistors
Commercial grade
Product compatible with RoHS directive
Compatible with lead-free solders
Overview of the NTCG series
CHARACTERISTICS OF NTC THERMISTORS
NTC(Negative Temperature Coefficient) thermistors are
manufactured from sintered metal oxides. Each thermistor
consists of a combination of two to four of the following materials:
manganese, nickel, cobalt and copper. NTC thermistors are
semiconductor resistors that exhibit decreasing
resistancecharacteristics with increasing temperature. TDK
thermistors have low thermal time constants which result in
extremely high rates of resistance change to accurately track the
temperature.
FEATURES OF NTCG SERIES
0603 to 2012mm wide lineup
125°C
UL1434 acquisition (File No.E250289)
Fig.1 R-T Curve : 10kohm@25°C
Fig.2 Internal structure of the multilayer chip thermistors
1000
①
100
Resistance (k
Ω
)
10
②
1
③
⑤
④
0.1
–40
0
50
100
Temperature (°C)
150
200
No.
(1)
(2)
(3)
(4)
(5)
Name
Semiconductor ceramics
Internal electrode(Pd)
Ag
Terminal electrode Ni
Sn
RoHS Directive Compliant Product: See the following for more details. https://product.tdk.com/info/en/environment/rohs/index.html
Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use.
Please note that the contents may change without any prior notice due to reasons such as upgrading.
20171213 / tpd_commercial_ntc-thermistor_ntcg_en.fm
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Temperature Protection Devices
NTC thermistors
Commercial grade
Product compatible with RoHS directive
Compatible with lead-free solders
Overview of the NTCG series
PART NUMBER CONSTRUCTION
NTC
Series name
G
Structural
classification
Multilayer internal
electroded
chip type
NTC thermistor
(Pb free type)
○○
shapes and
dimensions
Code
(mm)
06
0603
3E
B
constant
H
B
constant
tolerance
(%)
X
±0.7
101
Nominal
resistance
()
300
30
□
Nominal
resistance
tolerance
(%)
D
±0.5
T
Packaging
style
□□□
TDK internal code
Commercial grade
(other than 0603mm)
B constant: 25/85°C
Commercial grade
(other than 0603mm)
B constant: 25/50°C
Commercial grade (0603mm)
B constant: 25/85°C
Commercial grade (0603mm)
B constant: 25/50°C
NTC
thermistor
G
T
Taping
1
10
16
20
1005
1608
2012
F
H
J
±1
±3
±5
101
102
103
100
1000
(1k)
10000
(10k)
F
H
J
±1
±3
±5
1X
B
BX
B
constant
3A
3B
3C
3E
3F
3J
3K
3L
3N
3Q
3S
3000 to 3050
3051 to 3100
3101 to 3150
3201 to 3250
3251 to 3300
3401 to 3450
3451 to 3500
3501 to 3550
3601 to 3650
3701 to 3750
3801 to 3850
4A
4B
4C
4E
4F
4J
4K
4L
4N
4Q
4S
4000 to 4050
4051 to 4100
4101 to 4150
4201 to 4250
4251 to 4300
4401 to 4450
4451 to 4500
4501 to 4550
4601 to 4650
4701 to 4750
4801 to 4850
B constant (K)
2000 to 2050
2A
2051 to 2100
2B
2101 to 2150
2C
2201 to 2250
2E
2251 to 2300
2F
2401 to 2450
2J
2451 to 2500
2K
2501 to 2550
2L
2601 to 2650
2N
2701 to 2750
2Q
2801 to 2850
2S
The B constant indicates the magnitude of a change in a zero-load resistance value to a temperature, and is obtained based on arbitrary
two temperatures in resistance-to-temperature characteristics.
B constant calculation formula
B=
InR1
–
InR2
(1/T1)
–
(1/T2)
B: B constant (K)
T1: Arbitrary temperature (K)
T2: Arbitrary temperature different from T1 (K)
R1:Zero-load resistance value at temperature T1()
R2: Zero-load resistance value at temperature T2()
Each temperature is measured in absolute temperature. 0°C=273.15K
L
W
Shape symbol (JIS)
0603
1005
1608
2012
L
0.60±0.03
1.00±0.05
1.60±0.10
2.00±0.20
W
0.30±0.03
0.50±0.05
0.80±0.10
1.25±0.20
T
0.30±0.03
0.50±0.05
0.80±0.10
0.70±0.20
Dimemsions in mm
B
0.15±0.05
0.1min
0.2min
0.2min
T
B
OPERATING TEMPERATURE RANGE, PACKAGE QUANTITY, PRODUCT WEIGHT
Temperature range
Type
NTCG06
NTCG10
NTCG16
NTCG20
Operating temperature
(°C)
Storage temperature
(°C)
(pieces/reel)
15,000
10,000
4,000
2,000
（mg）
0.3
1.3
5.0
7.2
Package quantity
Individual weight
–40 to 125
–40 to 125
Operating temperature range includes self-temperature rise.
The storage temperature range is for after the assembly.
Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use.
Please note that the contents may change without any prior notice due to reasons such as upgrading.
20171213 / tpd_commercial_ntc-thermistor_ntcg_en.fm
Analog electronics
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