Te m p e r a t u r e P r o t e c t i o n D e v i c e s
December 2021
Temperature protection device
Chip NTC thermistor
Automotive grade:Corresponding to 125,150°C
NTCG series
NTCG 0603
NTCG 1005
NTCG 1608
NTCG 2012
JIS 0603 [EIA 0201]
JIS 1005 [EIA 0402]
JIS 1608 [EIA 0603]
JIS 2012 [EIA 0805]
(2/17)
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
Please pay careful attention to the precautions and follow safe designing practices when using these products.
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 thermistor 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 sealing 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 countermeasures have been taken.)
Do not use them in the following environments. (this excludes cases where countermeasures have been taken.)
• Corrosive gases (Cl2, NH3, 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 30W 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 (H2) 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.
20211202 / tpd_automotive_ntc-thermistor_ntcg_en.fm
(3/17)
Temperature Protection Devices
Product compatible with RoHS directive
Compatible with lead-free solders
AEC-Q200
NTC Thermistors
Automotive grade:Corresponding to 125,150°C
Overview of the NTCG series
CHARACTERISTICS OF NTC THERMISTORS
FEATURES OF NTCG SERIES
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 resistance
characteristics with increasing temperature. TDK thermistors have
low thermal time constants which result in extremely high rates of
resistance change to accurately track the temperature.
Fig.1 R-T Curve : 10kohm@25°C
The line-up corresponding to 125 °C is expanded.
The line-up corresponding to 150 °C is added.
AEC-Q200 compliant.
Fig.2 Internal structure of the multilayer chip Thermistors
1000
①
Resistance (kΩ)
100
10
②
1
⑤
0.1
–40
0
50
100
Temperature (°C)
150
④
③
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.
20211202 / tpd_automotive_ntc-thermistor_ntcg_en.fm
(4/17)
Temperature Protection Devices
Product compatible with RoHS directive
Compatible with lead-free solders
AEC-Q200
NTC Thermistors
Automotive grade:Corresponding to 125,150°C
Overview of the NTCG series
APPLICATIONS
V2X
LED
LED
BMS
Vout
2.2k
LED
Vout
Vout
R
R
R
Vout
R
Resistance
(R25)
B constant
(B25/85)
NTCG1005
Applicable to
series
automobile
NTCG1608
(125°C)
series
NTCG1005
Applicable to
series
automobile
NTCG1608
(150°C)
series
Power
Amp
NTC
Circuit
example
V2X
NTC
BMS
NTC
Temperature compensation for various types of
circuits
NTC
Use circuit
example
22k
4.7k
10k
68k
100k
4000K to 4550K 4000K to 4550K 4000K to 4550K 4100K to 4750K 3435K to 4550K 4000K to 4750K
4000K to 4550K
NTCG103JF103
FTDS
NTCG164BH222 NTCG164LH223 NTCG164BH472 NTCG164BH103 NTCG163JF103
JTDS
JTDS
JTDS
JTDS
FTDS
NTCG103JF103
N/A
N/A
N/A
N/A
FT1S
NTCG163JF103
N/A
N/A
N/A
N/A
FT1S
NTCG104EF104
FTDSX
NTCG164KF104
FTDS
NTCG104EF104
FT1SX
NTCG164KF104
FT1S
N/A
N/A
N/A
N/A
NTCG104BF683
FTDSX
N/A
N/A
N/A
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.
20211202 / tpd_automotive_ntc-thermistor_ntcg_en.fm
(5/17)
Temperature Protection Devices
Product compatible with RoHS directive
Compatible with lead-free solders
AEC-Q200
NTC Thermistors
Automotive grade:Corresponding to 125,150°C
Overview of the NTCG series
PART NUMBER CONSTRUCTION
NTC
G
○○
3E
H
Series
name
Structural
classification
shapes and
dimensions
Code
(mm)
B
constant
B constant
tolerance
(%)
NTC
thermistor
G
B
Multilayer
internal
electroded
chip type
NTC thermistor
(Pb free type)
101
□
T
□□□
Nominal
resistance
Nominal
resistance
tolerance
(%)
Packaging
style
TDK internal code
30
D
±0.5
T
Taping
100
F
±1
B
Bulk
H
±3
J
±5
()
06
0603
F
±1
300
10
1005
H
±3
101
16
1608
102
20
2012
103
1000
(1k)
10000
(10k)
125°C vehicle response
B constant: 25/85°C
125°C vehicle response
DSX B constant: 25/50°C
150°C vehicle response
1S B constant: 25/85°C
150°C vehicle response
1SX B constant: 25/50°C
DS
constant
B constant(K)
2000 to 2050
2051 to 2100
2101 to 2150
2201 to 2250
2251 to 2300
2401 to 2450
2451 to 2500
2501 to 2550
2601 to 2650
2701 to 2750
2801 to 2850
2A
2B
2C
2E
2F
2J
2K
2L
2N
2Q
2S
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 calculation formula
B=
InR1–InR2
(1/T1)–(1/T2)
Shape symbol (JIS)
0603
1005
1608
2012
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
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
Dimensions in mm
B
0.1min
0.1min
0.2min
0.2min
RATINGS 125°C RESPONSE COUNTERPARTS
Size
Maximum rated power (25°C)Asteris1
Dissipation factors (25°C) 2
mm
mW
mW/°C | mW/K
0603
100
1
1005
100
1
1608
100
1
2012
200
2
RATINGS 150°C RESPONSE COUNTERPARTS
mm
1005
1608
2012
Size
Maximum rated power (25°C)Asteris1 mW
125
125
250
Dissipation factors (25°C) 2
mW/°C | mW/K
1
1
2
1 Maximum rated power: Maximum power: at rated temperature (25°C), maximum power that can be applied continuously
2 Dissipation factors: powered that it is equivalent that be increased in self-heating by load power thermistor at 1°C temperature
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.
20211202 / tpd_automotive_ntc-thermistor_ntcg_en.fm
(6/17)
Temperature Protection Devices
Product compatible with RoHS directive
Compatible with lead-free solders
AEC-Q200
NTC Thermistors
Automotive grade:Corresponding to 125,150°C
NTCG series 0603 type
SHAPE & DIMENSIONS
RECOMMENDED LAND PATTERN
0.3±0.03
0.25 to 0.35
0.6±0.03
0.2 to 0.3 0.25 to 0.35 0.2 to 0.3
0.3±0.03
0.1 min.
Electrode material
Internal:Pd
External:Ag/Ni/Sn
Dimensions in mm
125°C RESPONSE COUNTERPARTS(OPERATING TEMPERATURE RANGE:–40 to 125°C)
Part No.
Resistance
[25°C]
()
Resistance
tolerance
B constant
[25/50°C]
(K)
B constant
[25/75°C]
(K)
B constant
[25/85°C]
(K)
B constant
[25/100°C]
(K)
B constant
tolerance
NTCG063JF103FTDS
NTCG064EF104FTDSX
10,000
100,000
±1%
±1%
3380
4250
3422
4293
3435
4308
3453
4327
±1%
±1%
Permissible
operating
current
[25°C]
(mA)
0.31
0.10
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.
20211202 / tpd_automotive_ntc-thermistor_ntcg_en.fm
(7/17)
Temperature Protection Devices
Product compatible with RoHS directive
Compatible with lead-free solders
AEC-Q200
NTC Thermistors
Automotive grade:Corresponding to 125,150°C
NTCG series 1005 type
SHAPE & DIMENSIONS
RECOMMENDED LAND PATTERN
0.5±0.05
0.4 to 0.6
1±0.05
0.35 to 0.45 0.3 to 0.5 0.35 to 0.45
0.5±0.05
0.1 min.
Electrode material
Internal:Pd
External:Ag/Ni/Sn
Dimensions in mm
125°C RESPONSE COUNTERPARTS(OPERATING TEMPERATURE RANGE:–40 to 125°C)
Part No.
NTCG103JF103JTDS
NTCG103JF103HTDS
NTCG103JF103FTDS
NTCG103JX103DTDS
NTCG104LH223JTDS
NTCG104LH473JTDS
NTCG104BF473JTDSX
NTCG104BF473HTDSX
NTCG104BF473FTDSX
NTCG104BF683FTDSX
NTCG104LH104JTDS
NTCG104EF104HTDSX
NTCG104EF104FTDSX
NTCG104ED104DTDSX
NTCG104LH154JTDS
Resistance
[25°C]
()
10,000
10,000
10,000
10,000
22,000
47,000
47,000
47,000
47,000
68,000
100,000
100,000
100,000
100,000
150,000
Resistance B constant
tolerance
[25/50°C]
(K)
±5%
3380
±3%
3380
±1%
3380
±0.5%
3380
±5%
4485
±5%
4485
±5%
4050
±3%
4050
±1%
4050
±1%
4085
±5%
4485
±3%
4250
±1%
4250
±0.5%
4250
±5%
4485
B constant
[25/75°C]
(K)
3422
3422
3422
3422
4533
4533
4098
4098
4098
4134
4533
4293
4293
4293
4533
B constant
[25/85°C]
(K)
3435
3435
3435
3435
4550
4550
4114
4114
4114
4150
4550
4308
4308
4308
4550
B constant
[25/100°C]
(K)
3453
3453
3453
3453
4573
4573
4137
4137
4137
4172
4573
4327
4327
4327
4573
B constant Permissible operating current
tolerance [25°C]
(mA)
±1%
0.31
±1%
0.31
±1%
0.31
±0.7%
0.31
±3%
0.21
±3%
0.14
±1%
0.14
±1%
0.14
±1%
0.14
±1%
0.12
±3%
0.10
±1%
0.10
±1%
0.10
±0.5%
0.10
±3%
0.05
150°C RESPONSE COUNTERPARTS(OPERATING TEMPERATURE RANGE:–40 to 150°C)
Part No.
NTCG103JF103JT1S
NTCG103JF103HT1S
NTCG103JF103FT1S
NTCG103JX103DT1S
NTCG104LH473JT1S
NTCG104BF473JT1SX
NTCG104BF473HT1SX
NTCG104BF473FT1SX
NTCG104LH104JT1S
NTCG104EF104HT1SX
NTCG104EF104FT1SX
NTCG104ED104DT1SX
Resistance
[25°C]
()
10,000
10,000
10,000
10,000
47,000
47,000
47,000
47,000
100,000
100,000
100,000
100,000
Resistance B constant
tolerance
[25/50°C]
(K)
±5%
3380
±3%
3380
±1%
3380
±0.5%
3380
±5%
4485
±5%
4050
±3%
4050
±1%
4050
±5%
4485
±3%
4250
±1%
4250
±0.5%
4250
B constant
[25/75°C]
(K)
3422
3422
3422
3422
4533
4098
4098
4098
4533
4293
4293
4293
B constant
[25/85°C]
(K)
3435
3435
3435
3435
4550
4114
4114
4114
4550
4308
4308
4308
B constant
[25/100°C]
(K)
3453
3453
3453
3453
4573
4137
4137
4137
4573
4327
4327
4327
B constant Permissible operating current
tolerance [25°C]
(mA)
±1%
0.31
±1%
0.31
±1%
0.31
±0.7%
0.31
±3%
0.14
±1%
0.14
±1%
0.14
±1%
0.14
±3%
0.10
±1%
0.10
±1%
0.10
±0.5%
0.10
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.
20211202 / tpd_automotive_ntc-thermistor_ntcg_en.fm
(8/17)
Temperature Protection Devices
Product compatible with RoHS directive
Compatible with lead-free solders
AEC-Q200
NTC Thermistors
Automotive grade:Corresponding to 125,150°C
NTCG series 1608 type
SHAPE & DIMENSIONS
RECOMMENDED LAND PATTERN
0.8±0.1
0.6 to 0.8
1.6±0.1
0.6 to 0.8
0.6 to 0.8
0.6 to 0.8
0.8±0.1
0.2 min.
Electrode material
Internal:Pd
External:Ag/Ni/Sn
Dimensions in mm
125°C RESPONSE COUNTERPARTS(OPERATING TEMPERATURE RANGE:–40 to 125°C)
Part No.
NTCG163EH101HTDS
NTCG164BH222JTDS
NTCG164BH472JTDS
NTCG163JF103HTDS
NTCG163JF103FTDS
NTCG163JX103DTDS
NTCG164BH103JTDS
NTCG164LH223JTDS
NTCG164LH473JTDS
NTCG164LH473HTDS
NTCG164BF473FTDSX
NTCG164LH104JTDS
NTCG164LH104HTDS
NTCG164KF104FTDS
NTCG164LH154JTDS
NTCG164QF474JTDS
NTCG164QF474HTDS
Resistance
[25°C]
()
100
2,200
4,700
10,000
10,000
10,000
10,000
22,000
47,000
47,000
47,000
100,000
100,000
100,000
150,000
470,000
470,000
Resistance B constant
tolerance
[25/50°C]
(K)
±3%
3244
±5%
4096
±5%
4067
±3%
3380
±1%
3380
±0.5%
3380
±5%
4067
±5%
4485
±5%
4485
±3%
4485
±1%
4050
±5%
4485
±3%
4485
±1%
4419
±5%
4485
±5%
4632
±3%
4632
B constant
[25/75°C]
(K)
3249
4100
4092
3422
3422
3422
4092
4533
4533
4533
4098
4533
4533
4468
4533
4698
4698
B constant
[25/85°C]
(K)
3250
4100
4100
3435
3435
3435
4100
4550
4550
4550
4114
4550
4550
4485
4550
4720
4720
B constant
[25/100°C]
(K)
3251
4100
4110
3453
3453
3453
4110
4573
4573
4573
4137
4573
4573
4509
4573
4749
4749
B constant Permissible operating current
tolerance [25°C]
(mA)
±3%
3.16
±3%
0.67
±3%
0.46
±1%
0.31
±1%
0.31
±0.7%
0.31
±3%
0.31
±3%
0.21
±3%
0.14
±3%
0.14
±3%
0.14
±3%
0.10
±3%
0.10
±1%
0.10
±3%
0.08
±1%
0.04
±1%
0.04
150°C RESPONSE COUNTERPARTS(OPERATING TEMPERATURE RANGE:–40 to 150°C)
Part No.
NTCG163JF103HT1S
NTCG163JF103FT1S
NTCG163JX103DT1S
NTCG164LH473JT1S
NTCG164LH473HT1S
NTCG164BF473FT1SX
NTCG164LH104JT1S
NTCG164LH104HT1S
NTCG164KF104FT1S
NTCG164QF474JT1S
NTCG164QF474HT1S
Resistance
[25°C]
()
10,000
10,000
10,000
47,000
47,000
47,000
100,000
100,000
100,000
470,000
470,000
Resistance B constant
tolerance
[25/50°C]
(K)
±3%
3380
±1%
3380
±0.5%
3380
±5%
4485
±3%
4485
±1%
4050
±5%
4485
±3%
4485
±1%
4419
±5%
4632
±3%
4632
B constant
[25/75°C]
(K)
3422
3422
3422
4533
4533
4098
4533
4533
4468
4698
4698
B constant
[25/85°C]
(K)
3435
3435
3435
4550
4550
4114
4550
4550
4485
4720
4720
B constant
[25/100°C]
(K)
3453
3453
3453
4573
4573
4137
4573
4573
4509
4749
4749
B constant Permissible operating current
tolerance [25°C]
(mA)
±1%
0.31
±1%
0.31
±0.7%
0.31
±3%
0.14
±3%
0.14
±3%
0.14
±3%
0.10
±3%
0.10
±1%
0.10
±1%
0.04
±1%
0.04
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.
20211202 / tpd_automotive_ntc-thermistor_ntcg_en.fm
(9/17)
Temperature Protection Devices
Product compatible with RoHS directive
Compatible with lead-free solders
AEC-Q200
NTC Thermistors
Automotive grade:Corresponding to 125,150°C
NTCG series 2012 type
SHAPE & DIMENSIONS
RECOMMENDED LAND PATTERN
1.25±0.2
0.9 to 1.2
2±0.2
0.7 to 0.9
0.9 to 1.2
0.7 to 0.9
0.7±0.2
0.2 min.
Electrode material
Internal:Pd
External:Ag/Ni/Sn
Dimensions in mm
125°C RESPONSE COUNTERPARTS(OPERATING TEMPERATURE RANGE:–40 to 125°C)
Part No.
NTCG203NH103JTDS
NTCG204AH473JTDS
NTCG204CH104JTDS
Resistance
[25°C]
()
10,000
47,000
100,000
Resistance B constant
tolerance
[25/50°C]
(K)
±5%
3590
±5%
3930
±5%
4085
B constant
[25/75°C]
(K)
3635
3982
4134
B constant
[25/85°C]
(K)
3650
4000
4150
B constant
[25/100°C]
(K)
3670
4032
4172
B constant Permissible operating current
tolerance [25°C]
(mA)
±3%
0.31
±3%
0.14
±3%
0.10
150°C RESPONSE COUNTERPARTS(OPERATING TEMPERATURE RANGE:–40 to 150°C)
Part No.
NTCG203NH103JT1S
NTCG204AH473JT1S
NTCG204CH104JT1S
Resistance
[25°C]
()
10,000
47,000
100,000
Resistance B constant
tolerance
[25/50°C]
(K)
±5%
3590
±5%
3930
±5%
4085
B constant
[25/75°C]
(K)
3635
3982
4134
B constant
[25/85°C]
(K)
3650
4000
4150
B constant
[25/100°C]
(K)
3670
4032
4172
B constant Permissible operating current
tolerance [25°C]
(mA)
±3%
0.31
±3%
0.14
±3%
0.10
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.
20211202 / tpd_automotive_ntc-thermistor_ntcg_en.fm
(10/17)
Temperature Protection Devices
Product compatible with RoHS directive
Compatible with lead-free solders
AEC-Q200
NTC Thermistors
Automotive grade:Corresponding to 125,150°C
NTCG series RT table
R-T TABLE ACQUISITION PROCEDURE
1. Access the top page of the TDK chip NTC thermistor (protective device)
https://product.tdk.com/info/en/products/protection/temperature/chip-ntc-thermistor/index.html
2. Click [Search by Part No.]
https://product.tdk.com/en/search/protection/temperature/chip-ntc-thermistor/part_no/
3. Enter the product name you want in the RT table in the box and click the Search button.
( Example: NTCG103JF103FT1 )
Wildcard and Multiple Part number.
NTCG103JF103FT1
Question mark (?) and asterisk (*) can be used as wildcard characters.
Search
The question mark (?) matches any single character, and the asterisk (*)
matches any sequence of characters.
Enter only one part number per line. Up to 50 part numbers can be
searched simultaneously.
Enable the real time search
A part number search is normally performed using a prefix search. If you
wish to use a suffix search, enter an exclamation mark (!) at the end of
the Part No.
4. Click the displayed product name.
( Example: NTCG103JF103FT1 )
Catalog /
Check Data
Images
Sheet
Part No.
NTCG103JF103FT1
New
NTCG103JF103FT1S
Distributor
Inventory
Brand
Buy Now
TDK
Buy Now
TDK
Apps.
Feature
125°C
UL
150°C
AEC-Q200
5. Individual pages are displayed and click the RT table in the "Document" on the right side bar.
Documents
Catalog
RoHS Certificate
SVHC/REACH Certificate
Selection Guide
RT Sheet
6. You can download the csv file in the 1°C step of the RT table for the product.
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.
20211202 / tpd_automotive_ntc-thermistor_ntcg_en.fm
(11/17)
Temperature Protection Devices
Product compatible with RoHS directive
Compatible with lead-free solders
AEC-Q200
NTC Thermistors
Automotive grade:Corresponding to 125,150°C
Attention in the board design
BOARD DESIGN
When attached to NTC substrate thermistor, amount of silver used
(fillet size) has direct impact on NTC thermistor after mounting.
Thus, sufficient consideration is necessary.
Set of land dimensions
(1) As the stress rises in the NTC thermistor owing to the increase
in silver, breakage and cracks will occur. Cause including crack, as
caution on board land design, configure the shape and dimensions
so that the amount of silver is appropriate.
If you installed 2 or more parts in the Common Land, separated by
a solder resist and special land of each component.
Dimensions shape
(2) When peak levels panning-at soldering is excessive, by solder
contraction stress, mechanical-thermal stress causes a Yasuku
chip crack.
In addition, when the peak level is underestimated, terminal
electrode fixed strength is insufficient. This causes chip dropouts
and may affect circuit reliability.
Representative example of the panning of peak levels is shown in
the following.
Recommended silver dose
Solder stress is increased,
and it is easy for a crack to
form.
Solder volume
overload
Most large serving amount
Minimum prime amount
Decent solder
volume
C
B
Shape symbol
0603
1005
1608
2012
A
Symbol
A
0.25 to 0.35
0.30 to 0.50
0.60 to 0.80
0.90 to 1.20
Fixed strength is weak, and
there is connection a
problem and risk of loss.
Solder volume
deficit
Case and suggested protocol want to avoid
B
0.20 to 0.30
0.35 to 0.45
0.60 to 0.80
0.70 to 0.90
C
0.25 to 0.35
0.40 to 0.60
0.60 to 0.80
0.90 to 1.20
Example
Improvement example
(land division)
Cases to avoid
Leads
Chip
Leads
Solder
Solder resist
Lead wire and land
of part discrete
doubles up
PCB
Chassis
Solder
(ground solder)
Solder resist
Arrangements in
the vicinity
L1
L2
L2>L1
Land
Arrangements of
chip component's
companion
Excess solder
Solder resist
Land
Missing solder
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.
20211202 / tpd_automotive_ntc-thermistor_ntcg_en.fm
(12/17)
Temperature Protection Devices
Product compatible with RoHS directive
Compatible with lead-free solders
AEC-Q200
NTC Thermistors
Automotive grade:Corresponding to 125,150°C
Attention in the board design
Arrangements of components
(1) I was based on camber of substrate and suggested protocol of
NTC thermistor arrangement, as stress does not join to the utmost
is shown in following.
(2) In payment near by board, depending on mount position of
NTC PTC, as mechanical stress varies, please refer to the
following diagram.
Substrate for flexural stress Substrate for flexural stress
Adverse events
Good example
E
D
Perforation
Perforation or slit
C
Perforation or slit
Direction of
surface solder
B
A
Slit
Solder the mountain fold as a Solder the mountain fold as a
top.
bottom.
Perforation or slit
Perforation or slit
The order of A > B = C > D > E eases the stress.
Chip
arrangements
(direction)
Mounted vertically to the
perforation and slit.
L1
Distance from
perforation and
slit portion
Mounted horizontally to the
perforation and slit.
L2
(L1