NTC Thermistor：TCF Type
：
Lead Frame for Temperature Sensing/Compensation
Features
1.
2.
3.
4.
5.
6.
7.
RoHS compliant
Body size
ψ3mm
Radial lead resin coated
-40 ~ +100℃ operating temperature range
Wide resistance range
Cost effective
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. Automotive electronics
3. Computers
4. Digital meter
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 type
3
Size
ψ3mm
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
0.5 x 0.2mm
straight lead
Definition
of
B Value
A
B
B
25/85
B
25/50
Structure and Dimensions
2.4 max.
3.8 max.
Tiebar cut
0.7±0.05
0.5± 0.05
2.5±0.5
0.2±0.02
(Unit:mm)
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
1
www.thinking.com.tw
2008.03
NTC Thermistor：TCF Type
：
Lead Frame for Temperature Sensing/Compensation
Electrical Characteristics
Zero Power
Resistance
at 25°
C
R
25
(K )
TCF3A202□318*
TCF3A502□33C*
TCF3A103□34D*
TCF3A123□347*
TCF3A203□40B*
TCF3A303□409*
TCF3A333□409*
TCF3A473□409*
TCF3A503□406*
TCF3A104□419*
2
5
10
12
20
30
33
47
50
100
1、2、3、
5、10
Tolerance
of
R
25
( ±%)
Tolerance
of
B value
(±%)
Max.
Power
Rating
at 25°
C
P
max
(mW)
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
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
Part No.
B
25/85
Value
(K)
3180
3325
3435
3470
4015
4090
4090
4090
4060
4190
Dissipation
Factor
δ(mW/°
C)
Note 1:
□
= Tolerance of R
25
,
Note 2: UL/
cUL
File No E138827
* = 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.
2
www.thinking.com.tw
2008.03
NTC Thermistor：TCF Type
：
Lead Frame for Temperature Sensing/Compensation
R-T Characteristic Curves (representative)
TCF3A202□318*~TCF3A104□419*
10000
1000
Resistance(KΩ)
Ω
100
10
1
TCF3A104□419*
TCF3A473□409*
TCF3A303□409*
TCF3A203□40B*
TCF3A123□347*
TCF3A103□34D*
TCF3A502□33C*
TCF3A202□318*
-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
Conditions
360℃ (max.)
3 sec (max.)
2 mm (min.)
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
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2008.03
NTC Thermistor：TCF Type
：
Lead Frame for Temperature Sensing/Compensation
Reliability
Item
Standard
Test conditions / Methods
Gradually applying the force specified and keeping the unit fixed for
10±1 sec
Terminal cross-sectional
IEC60068-2-21
Force
area
(mm2)
0.1<S≦0.2
(Kg)
0.5
No visible damage
Specifications
Tensile
Strength of
Terminals
Hold specimen and apply the force specified below to each lead. Bend
the specimen to 90° then return to the original position. Repeat the
,
procedure in the opposite direction.
Bending
Strength of
Terminals
IEC60068-2-21
Terminal cross-sectional
Force
area
(mm2)
0.1<S≦0.2
Solderability
Resistance to
Soldering Heat
High
Temperature
Storage
Damp Heat,
Steady State
IEC60068-2-20
235
±
5℃ ,
260
±
5℃ ,
2
±
0.5 sec
10
±
1 sec
(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
IEC60068-2-20
IEC60068-2-2
IEC60068-2-3
100
±
5℃ , 1000
±
24 hrs
40
±
2℃ ,
90~95% RH , 1000
±
24 hrs
Thec conditions shown below shall be repeated 5 cycles
Step
Rapid Change of
Temperature
1
IEC60068-2-14
2
3
4
Room temperature
100 ± 5
Room temperature
25
±
5℃, Pmax. , 1000
±
24 hrs
500 V
DC
1 min
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 %
Life Test
Insulation Test
IEC 60539-1
MIL-STD-
202F-
Method 302
MIL-STD-
202F-
Method 301
Hi-pot Test
1000 V
AC
1 min
No visible damage
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
4
www.thinking.com.tw
2008.03
NTC Thermistor：TCF Type
：
Lead Frame 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.
5
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2008.03
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