NTC Thermistor：TCF Series
：
Lead Frame Type for Temperature Sensing/Compensation
Features
1.
2.
3.
4.
5.
6.
7.
RoHS compliant & Halogen-Free (HF) series are available
Body size:
ψ3mm
Radial lead resin coated
Operating temperature range: -40 ~ +100℃
Wide resistance range
Cost effective
Agency recognition: UL /cUL
Recommended Applications
1. Home appliances
2. Computers
4. Digital meters
Part Number Code
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Product Type
THINKING
TCF NTC Thermistor
TCF Series
3
Size
ψ3mm
Zero Power
Resistance
at 25℃ (R
25
)
102
103
473
1KΩ
10KΩ
47KΩ
Tolerance of
R
25
F
G
H
J
K
±1%
±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
E
RoHS
Compliant
RoHS&HF
Compliant
Appearance
A
0.5 x 0.2mm
straight lead
Definition
of
B Value
A
B
B
25/85
B
25/50
Structure and Dimensions
17.2±1.5
8.5±1
5 max.
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
All specifications are subject to change without notice.
1
www.thinking.com.tw
2011.10
NTC Thermistor：TCF Series
：
Lead Frame Type for Temperature Sensing/Compensation
Electrical Characteristics
Zero Power
Resistance
at 25°
C
R
25
(K )
TCF3A202□318*
TCF3A502□33C*
TCF3A103□34D*
TCF3A103□350*
TCF3A303□409*
TCF3A333□409*
TCF3A503□406*
TCF3A104□419*
TCF3B202□350*
TCF3B103□390*
2
5
10
10
30
33
50
100
2
10
25/50
1, 2, 3, 5
25/85
Tolerance
of
R
25
( ±%)
Tolerance
of
B value
(±%)
2, 3
Max.
Power
Dissipation
Factor
Dissipation
at 25°
C
P
max
(mW)
δ(mW/°
C)
Thermal
Operating
Safety
Time
Temperature
Approvals
Constant
Range
τ(Sec.)
T
L
~T
U
(°
C)
UL cUL
√
√
√
1, 2, 3
150
Approx.
2
Approx.
12
-40~+100
√
√
√
√
2, 3
1, 2, 3
√
√
√
√
√
√
√
√
√
√
√
√
√
Part No.
B
Value
(K)
3180
3325
3435
3500
4090
4090
4060
4190
3500
3900
Note 1:
□
= Tolerance of R
25
,
Note 2: UL/
cUL
File No E138827
* = 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：TCF Series
：
Lead Frame Type for Temperature Sensing/Compensation
R-T Characteristic Curves
10000
TCF3A202□318*~TCF3A104□419*
1000
Resistance(KΩ)
Ω
100
10
1
TCF3A104□419*
TCF3A503□406*
TCF3A333□409*
TCF3A303□409*
TCF3A103□34D*
TCF3A103□350*
TCF3B103□390*
TCF3A502□33C*
TCF3A202□318*
TCF3B202□350*
-40
-30 -20
-10
0
10
20
30
40
50
60
70
80
90
100
(K
0.1
Temperature (℃)
℃
Soldering Recommendation
Wave Soldering Profile
Preheating
260℃ Max
Temperature
Soldering
Cooling
Note 2
Note 3
130±20℃
Note 1:
(1~3℃)/sec
Approx. 200℃/sec
5℃/sec. (Max)
Note 1
Tamb
Note 2:
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 Thermistor
3
Condition
360℃ (max.)
3 sec (max.)
2 mm (min.)
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
All specifications are subject to change without notice.
www.thinking.com.tw
2011.10
NTC Thermistor：TCF Series
：
Lead Frame 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
Terminal cross-sectional area
Tensile Strength
of Terminals
IEC60068-2-21
(mm )
0.1<S≦0.2
2
Specifications
Force
(Kg)
0.5
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 )
0.1<S≦0.2
2
Force
(Kg)
0.25
No visible damage
Solderability
Resistance to
Soldering Heat
High Temperature
Storage
Damp Heat,
Steady State
IEC60068-2-20
IEC60068-2-20
IEC60068-2-2
IEC60068-2-3
245
±
3℃ ,
260
±
3℃ ,
3
±
0.3 sec
10
±
1 sec
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 %
100
±
5℃ , 1000
±
24 hrs
40
±
2
℃,
90~95% RH, 1000
±
24 hrs
Thec 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
Rapid Change
of Temperature
1
IEC60068-2-14
2
3
4
No visible damage
∣△R
25
/R
25
∣≦
3 %
Max.
Power Dissipation
Hi-pot Test
IEC60539-1
MIL-STD-202F
-Method 301
No visible damage
∣△R
25
/R
25
∣≦
5 %
No visible damage
1000 V
AC
1 min
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
All specifications are subject to change without notice.
4
www.thinking.com.tw
2011.10
NTC Thermistor：TCF Series
：
Lead Frame Type for Temperature Sensing/Compensation
Packaging
Bulk Packing：
1000 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.
5
www.thinking.com.tw
2011.10
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