NTC Thermistor：TTS Type
：
Bead Type for Temperature Sensing/Compensation
Features
1.
2.
3.
4.
5.
6.
7.
RoHS compliant
Body size
ψ1.6mm~ψ2.5mm
Radial lead resin coated
Long leads for easy sensor placement
-40 ~ +100
℃
operating temperature range
Wide resistance range
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
Product Type
Thinking
TTS NTC thermistor
TTS type
1
Size
ψ1.6mmx
3 mm
(max)
ψ2.5mm×
4mm
(max)
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
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
2
3
±1%
±2%
±3%
Optional Suffix
Y
RoHS
compliant
2
Appearance
C
D
E
F
M
P
N
ψ0.25mm
Silver plated Copper wire
ψ0.3
mm Silver plated Copper wire
ψ0.23mm
enameled Copper wire
ψ0.3mm
enameled Copper wire
ψ0.23mm
enameled manganin wire
ψ0.5mm
enameled manganin wire
ψ0.23mm
enameled constantan wire
Definition
of
B Value
A
B
B
25/85
B
25/50
Structure and Dimensions
C Type
Epoxy resin
Silver Plated Copper Wire
E Type
Epoxy resin
Enameled Copper
Wire
Soldered
d
D
D
L
A
Part No.
TTS1
TTS2
Dmax.
1.6
2.5
Amax.
3.0
0.25±0.02
4.0
40±2
d
I
(Unit: mm)
Amax.
3.0
0.23±0.02
TTS2
2.5
4.0
80±4
4±1
d
L
I
L
d
L
Part No.
TTS1
A
Dmax.
1.6
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
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2008.03
NTC Thermistor：TTS Type
：
Bead Type for Temperature Sensing/Compensation
Electrical Characteristics
Part No.
Zero power
Resistance
at 25°
C
R
25
(KΩ)
Tolerance
of
R
25
( ±%)
B
Value
(K)
25/50
25/50
25/50
25/50
25/50
25/50
25/50
25/85
25/85
25/50
25/85
25/85
25/50
25/50
25/85
25/85
25/85
25/50
25/85
25/50
25/85
25/50
3270
3470
3650
3950
3380
3470
3950
3435
3975
3950
3435
3950
3950
3950
3435
4015
3435
4100
4250
4390
4270
4300
Tolerance
of
B value
(±%)
Max.
Power
Rating
at 25°
C
P
max
(mW)
Dissipation
Factor
δ(mW/°
C)
Thermal
Operating
Safety
Time
Temperature
Approvals
Constant
Range
τ(Sec.)
T
L
~T
U
(°
C)
UL cUL
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
TTS#B502□327*
5
TTS#B502□347*
5
TTS#B502□365*
5
TTS#B502□395*
5
TTS#B103□338*
10
TTS#B103□347*
10
TTS#B103□395*
10
TTS#A103□34D
10
TTS#A103□39H
10
TTS#B203□395*
20
TTS#A203□34D*
20
1、2、3、
5、10
TTS#A303□395*
30
TTS#B473□395*
47
TTS#B503□395*
50
TTS#A503□34D*
50
TTS#A833□40B*
83
TTS#A104□34D*
100
TTS#B104□410*
100
TTS#A104□425*
100
TTS#B474□439*
470
TTS#A504□427*
500
TTS#B504□430*
500
Note 1: # = Body Size ,
□
= Tolerance of
R
25
,
Note 2: UL/
cUL
File No E138827
1﹑2﹑3
45
≧
1
≦
10
-40 ~ +100
* = Tolerance of B value
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
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2008.03
NTC Thermistor：TTS Type
：
Bead 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
)＝100℃
P
Ta
=(T
U
-Ta)/(T
U
-25)×Pmax＝60% Pmax
0
T
L
0
25
T
U
Ambient temperature (
℃
)
R-T Characteristic Curves (representative)
TTS#B502□327*~TTS#B504□430*
□
□
100000
10000
1000
Resistance(KΩ)
Ω
100
10
TTS#B504□430
TTS#B104□410
TTS#B503□395
1
TTS#B203□395
TTS#A103□34D
TTS#B502□327
0.1
-40 -30 -20 -10
0
10
20 30 40
50 60 70
80 90 100 110 120 130
Temperature (℃)
℃
3
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
www.thinking.com.tw
2008.03
NTC Thermistor：TTS Type
：
Bead 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：TTS Type
：
Bead 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
Terminal diameter
Tensile
Strength of
Terminations
IEC 60068-2-21
(mm)
d≦0.25
0.25<d≦0.3
0.3<d≦0.5
Force
(Kg)
0.10
0.25
0.5
No visible damage
Specifications
Hold specimen and apply the force specified below to each lead. Bend the
specimen to 90° then return to the original positi on. Repeat the procedure in
,
the opposite direction.
Bending
Strength of
Terminations
Terminal diameter
IEC 60068-2-21
(mm)
d≦0.25
0.25<d≦0.3
0.3<d≦0.5
Force
(Kg)
0.05
0.125
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
Solderability
IEC 60068-2-20
235
±
5℃ ,
2
±
0.5 sec
Resistance to
Soldering
IEC 60068-2-20
Heat
High
Temperature
IEC60068-2-3
Storage
Damp Heat,
IEC60068-2-3
Steady State
260
±
5℃ ,
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
Rapid Change
IEC60068-2-14
of
Temperature
1
2
3
4
Temperature (℃)
-40±5
Room temperature
100±5
Room temperature
Period (minutes)
30±3
5±3
30±3
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
%
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2008.03
