NTC Thermistor：TTF Series
：
Insulation Film Type for Temperature Sensing/Compensation
Features
1.
2.
3.
4.
RoHS compliant & Halogen-Free (HF) series are available
Radial leaded insulation film coated
Operating temperature range: -40 ~ +100℃
Agency recognition: UL/cUL
Recommended Applications
1. Home appliances
2. Computers
3. Battery packs
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 Series
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
H
RoHS
Compliant
RoHS & HF
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.
All specifications are subject to change without notice.
1
www.thinking.com.tw
2011.10
NTC Thermistor：TTF Series
：
Insulation Film Type for Temperature Sensing/Compensation
Electrical Characteristics
Zero Power Tolerance
Resistance
of
at 25°
C
R
25
R
25
(KΩ)
Ω
TTF3A502□34D*
TTF3A103□34D*
TTF3A203□34D*
TTF3A223□34D*
TTF3A303□39H*
TTF3A104□34D*
5
10
20
22
30
100
1, 2, 3,
5
25/85
( ±%)
Max.
Safety
Tolerance
Thermal Operating
Dissipation
Power
of
Time Temperature Approvals
Factor
Dissipation
B value
Constant
Range
at 25°
C
UL cUL
(±%)
P
max
(mW)
δ(mW/°
C)
τ(Sec.)
T
L
~T
U
(°
C)
2, 3
Approx.
0.7
Approx.
5
√
√
1, 2, 3
3.5
-40 ~ +100
√
√
√
√
√
√
√
√
√
√
Part No.
B
Value
(K)
3435
3435
3435
3435
3975
3435
Note 1:□= Tolerance of R
25
Note 2: * = Tolerance of B value
Max. Power Dissipation Derating Curve
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.
All specifications are subject to change without notice.
2
www.thinking.com.tw
2011.10
NTC Thermistor：TTF Series
：
Insulation Film Type for Temperature Sensing/Compensation
R-T Characteristic Curves
TTF3A502□34D*~ TTF3A104□34D*
10000
1000
100
Resistance(KΩ)
Ω
10
TTF3A104□34D*
1
TTF3A223□34D*
TTF3A303□39H*
TTF3A303□409*
TTF3A103□34D*
TTF3A502□34D
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
Recommended Reworking Conditions with Soldering Iron
Item
Temperature of Soldering Iron-tip
Soldering Time
Distance from Coating
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
All specifications are subject to change without notice.
Conditions
360℃ (max.)
3 sec (max.)
Do not touch film bottom
3
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2011.10
NTC Thermistor：TTF Series
：
Insulation Film Type for Temperature Sensing/Compensation
Reliability
Item
Standard
Test conditions / Methods
Gradually apply the specified force and keep the unit fixed for
10±1 sec.
Tensile Strength
of Terminals
Terminal cross-sectional area
(mm )
0.05<S≦0.1
2
Specifications
IEC60068-2-21
Force
(Kg)
0.25
No visible damage
Hold specimen and apply the force specified below to each lead. Bend
the specimen to 90° and then return to the original position. Repeat the
,
procedure in the opposite direction.
Bending Strength
of Terminals
IEC60068-2-21
Terminal cross-sectional area
(mm )
0.05<S≦0.1
2
Force
(Kg)
0.125
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
245
±
3℃, 3
±
0.3 sec
260
±
3℃, 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
Temperature (℃)
-40 ± 5
Room temperature
100 ± 5
Room temperature
25
±
5℃, Pmax. , 1000
±
24 hrs
Period (minutes)
30 ± 3
5±3
30 ± 3
5±3
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 %
Rapid Change of
Temperature
1
IEC60068-2-14
2
3
4
No visible damage
∣△R
25
/R
25
∣≦
3 %
Max.
Power Dissipation
IEC60539-1
No visible damage
∣△R
25
/R
25
∣≦
5 %
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.
All specifications are subject to change without notice.
4
www.thinking.com.tw
2011.10
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