NTC Thermistor：TTC03 Series
：
Ф3mm
Disc Type for Temperature Sensing/Compensation
Features
1.
2.
3.
4.
5.
6.
7.
RoHS compliant
Body size
Ф3mm
Radial lead resin coated
-40 ~ +125℃ operating temperature range
Wide resistance range
Cost effective
Agency recognition: UL /CQC
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
TTC NTC thermistor
TTC type
Body Size
3
ψ4*H5mm
Zero Power
Resistance
at 25℃ (R
25
)
102
103
473
1KΩ
10KΩ
47KΩ
Tolerance of
B Value
B Value
First
Two Digits
30
31
32
：
︰
40
41
︰
30
31
32
：
︰
40
41
︰
Definition
of
B Value
A
B
B
25/85
B
25/50
B Value
Last
Two Digits
0
A
1
B
2
︰
H
8
J
9
K
00
05
10
15
20
︰
75
80
85
90
95
1
2
3
±1%
±2%
±3%
Optional Suffix
RoHS
Y
compliant
Appearance
E
Straight lead pitch 2.54mm,
ψ0.5mm
CP wire, epoxy coating (green)
Tolerance of
R
25
F
G
H
J
K
±1%
±2%
±3%
±5%
±10%
Structure and Dimensions
(Unit:mm)
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
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2008.03
NTC Thermistor：TTC03 Series
：
Ф3mm
Disc Type for Temperature Sensing/Compensation
Electrical Characteristics
Zero Power
Resistance
at 25°
C
R
25
(K )
TTC3A901
□
39D*
TTC3A102
□
39D*
TTC3A152
□
39D*
TTC3A202
□
39H*
TTC3A222
□
39H*
TTC3A272
□
39H*
TTC3A302
□
39H*
TTC3A332
□
39H*
TTC3A472
□
39H*
TTC3A502
□
39H*
TTC3A682
□
39H*
TTC3A103
□
34D*
TTC3A103
□
374*
TTC3A103
□
39H*
TTC3A123
□
374*
TTC3A153
□
374*
TTC3A203
□
374*
TTC3A223
□
374*
TTC3A333
□
409*
TTC3A473
□
409*
TTC3A503
□
39H*
TTC3A503
□
406*
TTC3A683
□
419*
TTC3A104
□
419*
TTC3A154
□
437*
TTC3A224
□
437*
TTC3A334
□
457*
TTC3A474
□
457*
0.9
1
1.5
2
2.2
2.7
3
3.3
4.7
5
6.8
10
10
10
12
15
20
22
33
47
50
50
68
100
150
220
330
470
Part No.
Tolerance
of
R
25
( ±%)
B
25/85
Value
(K)
3935
3935
3935
3975
3975
3975
3975
3975
3975
3975
3975
3435
3740
3975
3740
3740
3740
3740
4090
4090
3975
4060
4190
4190
4370
4370
4570
4570
Tolerance
of
B value
(±%)
Max.
Power Rating
at 25°
C
P
max
(mW)
Dissipation
Factor
δ(mW/°
C)
Safety
Thermal Operating
Time
Temperature Approvals
Constant
Range
UL CQC
τ(Sec.)
T
L
~T
U
(°
C)
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
1、2、3、
5、10
1、2、3
150
≧2.5
≦18
-40~+125
Note 1:
□
= Tolerance of rR
25
Note 2: * = Tolerance of B value
Note 3: UL file no.E138827 CQC file no. 04001011966
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
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www.thinking.com.tw
2008.03
NTC Thermistor：TTC03 Series
：
Ф3mm
Disc Type for Temperature Sensing/Compensation
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
)＝125℃
P
Ta
=(T
U
-Ta)/(T
U
-25)×Pmax＝70% Pmax
0
T
L
0
25
T
U
Ambient temperature (
℃
)
R-T Characteristic Curves (representative)
TTC3A901□39D ~ TTC3A474□457
100000
10000
1000
Resistance(KΩ)
Ω
100
(K
10
TTC3A474□457
TTC3A154□437
TTC3A104□419
TTC3A473□409
TTC3A203□374
TTC3A103□34D
TTC3A502□39H
1
0.1
TTC3A901□39D
0.01
-40 -30 -20 -10
0
10
20 30 40
50 60 70
80 90 100 110 120 130
Temperature (℃)
℃
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
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2008.03
NTC Thermistor：TTC03 Series
：
Ф3mm
Disc Type for Temperature Sensing/Compensation
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 Thermistor
Conditions
360℃ (max.)
3 sec (max.)
2 mm (min.)
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
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2008.03
NTC Thermistor：TTC03 Series
：
Ф3mm
Disc Type for Temperature Sensing/Compensation
Reliability
Item
Standard
Test conditions / Methods
Gradually applying the force specified and keeping the unit fixed for 10±1
sec.
Tensile
Strength of
Terminations
Terminal diameter
IEC 60068-2-21
(mm)
0.3<d
≦
0.5
0.5<d
≦
0.8
Force
(Kg)
0.5
1.0
No visible damage
Specifications
Hold specimen and apply the force specified below to each lead. Bend the
specimen to 90° then r eturn to the original position. Repeat the procedure in
,
the opposite direction.
Bending
Strength of
Terminations
Terminal diameter
(mm)
0.3<d
≦
0.5
0.5<d
≦
0.8
Force
(Kg)
0.25
0.5
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 %
IEC 60068-2-21
No visible damage
Solderability
IEC 60068-2-20
235 ± 5
℃
,
2 ± 0.5 sec
Resistance to
IEC 60068-2-20
Soldering
Heat
High
Temperature IEC 60068-2-3
Storage
Damp Heat,
Steady State IEC 60068-2-2
260 ± 5
℃
,
10 ± 1 sec
125 ± 5
℃
x 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
125±5
Room temperature
Period (minutes)
30±3
5±3
30±3
5±3
Rapid Change
of
IEC 60068-2-14
Temperature
1
2
3
4
No visible damage
∣△R
25
/R
25
∣
≦
3 %
Life Test
IEC 60539-1
25 ± 5
℃
, Pmax. x 1000 ± 24 hrs
No visible damage
∣∣
R
25
/R
25
∣≦
5 %
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
5
www.thinking.com.tw
2008.03
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