NTC Thermistor：TTF Type
：
Insulation Film Type for Temperature Sensing/Compensation
Features
1.
2.
3.
4.
RoHS compliant
Radial leaded insulation film coated
-40 ~ +100℃ operating temperature range
Agency recognition: UL /cUL
Recommended Applications
1. Home appliances (air conditioner, refrigerator,
electric fan, electric cooker, washing machine,
microwave oven, drinking machine, CTV, radio.)
2. Computers
3. Battery pack
Part Number Code
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Product Type
Thinking
TTF NTC thermistor
TTF type
3
Size
φ
3mm
Zero Power Tolerance of
Resistance
R
25
at 25℃ (R
25
)
F
±1%
102
103
473
1KΩ
10KΩ
47KΩ
G
H
J
K
±2%
±3%
±5%
±10%
B Value
First
Two Digits
30
31
32
：
︰
40
41
︰
30
31
32
：
︰
40
41
︰
B Value
Tolerance of
Last
B Value
Two Digits
1
±1%
0
A
1
B
2
︰
H
8
J
9
K
00
05
10
15
20
︰
75
80
85
90
95
2
3
±2%
±3%
Optional Suffix
Y
RoHS
compliant
Appearance
A
B
L:25mm solder part 5mm
L:50mm solder part 5mm
Definition
of
B Value
A
B
B
25/85
B
25/50
Structure and Dimensions
3.6
±
0.5
2
±
1
NTC
Thermistor
0.6(max.)
25
±
1
Φ0.5
Slipped film:
1.0max
5
±
1
0.17
±
0.02
0.15
±
0.02
0.5
±
0.035
(Unit:mm)
1.8
±
0.1
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
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2008.05
NTC Thermistor：TTF Type
：
Insulation Film Type for Temperature Sensing/Compensation
Electrical Characteristics
Zero Power
Resistance
at 25°
C
R
25
(KΩ)
TTF3A502□34D*
TTF3A103□34D*
TTF3A203□34D*
TTF3A303□34D*
TTF3A473□34D*
TTF3A473□39H*
TTF3A473□419*
TTF3A503□34D*
TTF3A104□34D*
TTF3A104□39H*
TTF3A224□405*
5
10
20
30
47
47
47
50
100
100
220
1、2、3、
5、10
3975
4190
3435
3975
4050
1、2、3
3.5
Approx.
0.7
Approx.
5
-40 ~ +100
3435
Tolerance
of
R
25
( ±%)
Tolerance
of
B value
(±%)
Max.
Power
Rating
at 25°
C
P
max
(mW)
Safety
Thermal
Operating
Time
Temperature Approvals
Constant
Range
UL
cUL
Part No.
B
25/85
Value
(K)
Dissipation
Factor
δ(mW/°
C)
τ(Sec.)
T
L
~T
U
(°
C)
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
Note 1:□ = Tolerance of
R
25
Note 2: * = Tolerance of B value
Power Derating Curve
Max power rating (%)
100
T
U
：Maximum
operating temperature (℃)
T
L
：Minimum
operating temperature (℃)
For example：Ambient temperature(Ta)=55℃
Maximum operating temperature(T
U
)＝100℃
P
Ta
=(T
U
-Ta)/(T
U
-25)×Pmax＝60% Pmax
0
T
L
0
25
T
U
Ambient temperature (
℃
)
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
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2008.05
NTC Thermistor：TTF Type
：
Insulation Film Type for Temperature Sensing/Compensation
R-T Characteristic Curves (representative)
TTF3A502□34D*~ TTF3A224□405*
10000
1000
Resistance(KΩ)
Ω
100
10
TTF3A224□405*
TTF3A104□34D*
TTF3A104□39H*
TTF3A473□34D*
TTF3A473□39H*
TTF3A303□34D
TTF3A203□34D
TTF3A103□34D*
TTF3A502□34D*
1
0.1
-40
-30
-20
-10
0
10
20
30
40
50
60
70
80
90
100
Temperature (℃)
℃
Soldering Recommendation
Wave Soldering Profile
Preheating
260℃ Max
Temperature
Soldering
Cooling
Note 2
Note 3
Note 1:
(1~3℃)/sec
Approx. 200℃/sec
5℃/sec. (Max)
130±20℃
Note 2:
Note 1
Tamb
Note 3:
30~90 sec.
＜1
sec.
＜10
sec.
Time
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
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2008.05
NTC Thermistor：TTF Type
：
Insulation Film Type for Temperature Sensing/Compensation
Recommended Reworking Conditions With Soldering Iron
Item
Temperature of Soldering Iron-tip
Soldering Time
Distance from Coating
Conditions
360℃ (max.)
3 sec (max.)
Can't touch film bottom
Reliability
Item
Standard
Test conditions / Methods
Gradually applying the force specified and keeping the unit fixed for
10±1 sec..
Tensile
Strength of
Terminals
Terminal cross-sectional area
IEC60068-2-21
(mm2)
0.07<S≦0.2
Force
(Kg)
0.5
No visible damage
Specifications
Hold specimen and apply the force specified below to each lead. Bend
the specimen to 90° th en return to the original position. Repeat the
,
procedure in the opposite direction.
Bending
Strength of
Terminals
IEC60068-2-21
Terminal cross-sectional area
(mm2)
0.07<S≦0.2
Force
(Kg)
0.25
At least 95% of terminal
electrode is covered by
new solder
No visible damage
∣△R
25
/R
25
∣≦
3 %
No visible damage
∣△R
25
/R
25
∣≦
5 %
No visible damage
∣△R
25
/R
25
∣≦
3 %
No visible damage
Solderability
Resistance to
Soldering Heat
High
Temperature
Storage
Damp Heat,
Steady State
IEC60068-2-20
IEC60068-2-20
IE600C68-2-2
IEC60068-2-3
235
±
5℃ ,
260
±
5℃ ,
2
±
0.5 sec
10
±
1 sec
100
±
5℃ , 1000
±
24 hrs
40
±
2℃ ,
90~95% RH , 1000
±
24 hrs
The conditions shown below shall be repeated 5 cycles
Step
Rapid Change of
Temperature
1
IEC60068-2-14
2
3
4
Life Test
Insulation Test
IEC 60539-1
MIL-STD-202F-
Method 302
MIL-STD-202F-
Method 301
Room temperature
100 ± 5
Room temperature
5±3
30 ± 3
5±3
No visible damage
∣△R
25
/R
25
∣≦
5 %
No visible damage
≧100
MΩ
Temperature (℃)
-40 ± 5
Period (minutes)
30 ± 3
No visible damage
∣△R
25
/R
25
∣≦
3 %
25
±
5℃, Pmax. , 1000
±
24 hrs
500 V
DC
1 min
Hi-pot Test
1000 V
AC
10mA 1 min
No visible damage
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
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2008.05
NTC Thermistor：TTF Type
：
Insulation Film Type for Temperature Sensing/Compensation
Packaging
Bulk Packing:
500 pcs/ bag
Storage Conditions of Products
Storage Conditions：
1.Storage Temperature
：
-10℃~+40℃
2.Relative Humidity：
≦75%RH
3. Keep away from corrosive atmosphere and sunlight.
Period of Storage
：1
year
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
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2008.05
