NTC Thermistor：
：：
：TTS Type
Bead Type for Temperature Sensing/Compensation
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
1
www.thinking.com.tw
2008.03
Features
1. RoHS compliant
2. Body size ψ1.6mm~ψ2.5mm
3. Radial lead resin coated
4. Long leads for easy sensor placement
5. -40 ~ +100 operating temperature range℃
6. Wide resistance range
7. 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.
Thermometer
Part Number Code
1 2 3 .4 5 6 7 8 9 10
11
12
13
14
15
16
Structure and Dimensions
Definition
of
B Value
A B
25/85
B B
25/50
Size
1
ψ1.6mm
x
3 mm
(max)
2
ψ2.5mm×
4mm
(max)
(Unit: mm)
Product Type
TTS
Thinking
NTC thermistor
TTS type
Zero Power
Resistance
at 25℃ (R
25
)
102
1KΩ
103
10KΩ
473
47KΩ
Tolerance of
R
25
F
±1%
G
±2%
H
±3%
J
±5%
K
±10%
B Value
First
Two Digits
30
31
32
：
︰
40
41
︰
30
31
32
：
︰
40
41
︰
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
Tolerance of
B Value
1 ±1%
2 ±2%
3 ±3%
Optional Suffix
Y
RoHS
compliant
Part No.
Dmax.
Amax.
d L
TTS1
1.6 3.0
TTS2
2.5 4.0 0.25±0.02
40±2
Part No.
Dmax.
Amax.
d L I
TTS1
1.6 3.0
TTS2
2.5 4.0 0.23±0.02
80±4 4±1
C Type E Type
D
A
L
I
d
Epoxy resin
Enameled Copper
Wire Soldered
Epoxy resin
Silver Plated Copper Wire
D
A
L
d
Appearance
C
ψ0.25mm Silver plated Copper wire
D
ψ0.3 mm Silver plated Copper wire
E
ψ0.23mm enameled Copper wire
F
ψ0.3mm enameled Copper wire
M
ψ0.23mm enameled manganin wire
P
ψ0.5mm enameled manganin wire
N
ψ0.23mm enameled constantan wire
NTC Thermistor：
：：
：TTS Type
Bead Type for Temperature Sensing/Compensation
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
2
www.thinking.com.tw
2008.03
Electrical Characteristics
Zero power
Resistance
at 25°C
Tolerance
of
R
25
B
Value Tolerance
of
B value
Max.
Power
Rating
at 25°C
Dissipation
Factor Thermal
Time
Constant
Operating
Temperature
Range Safety
Approvals
Part No.
R
25
(KΩ)
( ±%) (K) (±%) P
max
(mW)
δ(mW/°C)
τ(Sec.) T
L
~T
U
(°C)
UL
cUL
TTS#B502□327*
5 25/50
3270
√
√
TTS#B502□347*
5 25/50
3470
√
√
TTS#B502□365*
5 25/50
3650
√
√
TTS#B502□395*
5 25/50
3950
√
√
TTS#B103□338*
10 25/50
3380
√
√
TTS#B103□347*
10 25/50
3470
√
√
TTS#B103□395*
10 25/50
3950
√
√
TTS#A103□34D
10 25/85
3435
√
√
TTS#A103□39H
10 25/85
3975
√
√
TTS#B203□395*
20 25/50
3950
√
√
TTS#A203□34D*
20 25/85
3435
√
√
TTS#A303□395*
30 25/85
3950
√
√
TTS#B473□395*
47 25/50
3950
√
√
TTS#B503□395*
50 25/50
3950
√
√
TTS#A503□34D*
50 25/85
3435
√
√
TTS#A833□40B*
83 25/85
4015
√
√
TTS#A104□34D*
100 25/85
3435
√
√
TTS#B104□410*
100 25/50
4100
√
√
TTS#A104□425*
100 25/85
4250
√
√
TTS#B474□439*
470 25/50
4390
√
√
TTS#A504□427*
500 25/85
4270
√
√
TTS#B504□430*
500
1、2、3、
5、10
25/50
4300
1﹑2﹑3
45 1≧ 10≦ -40 ~ +100
√
√
Note 1: # = Body Size , □ = Tolerance of R
25
, * = Tolerance of B value
Note 2: UL/
cUL
File No E138827
NTC Thermistor：
：：
：TTS Type
Bead Type for Temperature Sensing/Compensation
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
3
www.thinking.com.tw
2008.03
Power Derating Curve
R-T Characteristic Curves (representative)
0.1
1
10
100
1000
10000
100000
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130
100
0 25 T
U
0
T
L
Ambient temperature ( )℃
℃℃
℃
Max power rating (%)
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
Resistance(KΩ
Ω
Ω
Ω)
TTS#B502□
□□
□327*~TTS#B504□
□□
□430*
Temperature (℃
℃℃
℃)
TTS#B504□430
TTS#B104□410
TTS#B503□395
TTS#B203□395
TTS#A103□34D
TTS#B502□327
NTC Thermistor：
：：
：TTS Type
Bead Type for Temperature Sensing/Compensation
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
4
www.thinking.com.tw
2008.03
Soldering Recommendation
Wave Soldering Profile
Recommended Reworking Conditions With Soldering Iron
Item Conditions
Temperature of Soldering Iron-tip 360℃ (max.)
Soldering Time 3 sec (max.)
Distance from Thermistor 2 mm (min.)
Temperature
130±20℃
260℃ Max
Tamb
Cooling
Time
Soldering Preheating
30~90 sec. ＜1 sec. ＜10 sec.
Note 1
Note 2 Note 3
Note 1: (1~3℃)/sec
Note 2: Approx. 200℃/sec
Note 3: 5℃/sec. (Max)
NTC Thermistor：
：：
：TTS Type
Bead Type for Temperature Sensing/Compensation
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
5
www.thinking.com.tw
2008.03
Reliability
Item Standard Test conditions / Methods Specifications
Tensile
Strength of
Terminations
IEC 60068-2-21
Gradually applying the force specified and keeping the unit fixed for 10±1 sec
Terminal diameter
Force
(mm)
(Kg)
d≦0.25
0.10
0.25<d≦0.3
0.25
0.3<d≦0.5
0.5
No visible damage
Bending
Strength of
Terminations
IEC 60068-2-21
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.
Terminal diameter
Force
(mm)
(Kg)
d≦0.25
0.05
0.25<d≦0.3
0.125
0.3<d≦0.5
0.25
No visible damage
Solderability
IEC 60068-2-20
235 ± 5℃ , 2 ± 0.5 sec
At least 95% of
terminal
electrode is covered
by
new solder
Resistance to
Soldering
Heat IEC 60068-2-20
260 ± 5℃ , 10 ± 1 sec No visible damage
∣△R
25
/R
25
∣≦3 %
High
Temperature
Storage IEC60068-2-3
100 ± 5℃ , 1000 ± 24 hrs No visible damage
∣△R
25
/R
25
∣≦5 %
Damp Heat,
Steady State
IEC60068-2-3
40 ± 2℃ , 90~95% RH , 1000 ± 24 hrs No visible damage
∣△R
25
/R
25
∣≦3 %
Rapid Change
of
Temperature
IEC60068-2-14
The conditions shown below shall be repeated 5 cycles
Step Temperature (℃) Period (minutes)
1 -40±5 30±3
2 Room temperature 5±3
3 100±5 30±3
4 Room temperature 5±3
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 %
NTC Thermistor：
：：
：TTS Type
Bead Type for Temperature Sensing/Compensation
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
6
www.thinking.com.tw
2008.03
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
