NTC Thermistor：TTS Series
Epoxy Bead Type for Temperature Sensing/Compensation
THINKING ELECTRONIC INDUSTRIAL CO., LTD. 47 www.thinking.com.tw 2012.08
All specifications are subject to change without notice.
Optional Suffix
Y RoHS
Compliant
H RoHS + HF
Compliant
B Value
338 3380
34D 3435
395 3950
39H 3975
405 4050
Size
1
Ф1.8mm x
6.0 mm
(max.)
2
Ф2.6mm x
6.0mm
(max.)
Zero Power
Resistance
at 25℃ (R25)
102 1KΩ
103 10KΩ
473 47KΩ
Product Type
TTS
THINKING
NTC Thermistor
TTS Series
Features
1. RoHS compliant
2. Halogen-Free (HF) series are available
3. Body size: Ф1.8mm, Ф2.6mm
4. Radial lead resin coated
5. Long leads for easy sensor placement
6. Operating temperature range: -40 ~℃+100℃
7. Wide resistance range
8. Agency recognition: UL / cUL
Recommended Applications
1. Home appliances
2. Computers
3. Battery packs
4. Thermometers
Part Number Code
1 2 3 .4 5 6 7 8 9 10 11 12 13 14 15 16
Structure and Dimensions
(Unit: mm)
R Type G Type
D
L
Red Enamelled C
P
Wire
BLACK EPOXY
AI
d
Solde red
Series Dmax. Amax. d L I
TTS1 1.8 6.0
TTS2 2.6 6.0
0.30±0.02 70±5 2±0.5
D
L
Sn Plated CP Wire
BLACK EPOXY
A
d
Series Dmax. Amax. d L
TTS1 1.8 6.0
TTS2 2.6 6.0
0.30±0.02 70±5
Tolerance
of R25
F±1%
G±2%
H±3%
J±5%
K ±10%
Tolerance of
B Value
1 ±1%
2 ±2%
3 ±3%
Definition
of
B Value
A B25/85
B B25/50
Appearance
RΦ0.30mm Red Enamelled CP Wire
GΦ0.30mm Sn Plated CP Wire
TΦ0.30mm Blue Teflon CP Wire
(Unit: mm)
NTC Thermistor：TTS Series
Epoxy Bead Type for Temperature Sensing/Compensation
THINKING ELECTRONIC INDUSTRIAL CO., LTD. 48 www.thinking.com.tw 2012.08
All specifications are subject to change without notice.
Electrical Characteristics
Zero Power
Resistance
at 25°C
Tolerance
of
R25
B
Value
Tolerance
of
B value
Max.
Power
Dissipation
at 25°C
Dissipation
Factor
Thermal
Time
Constant
Operating
Temperature
Range
Safety
Approvals
Part No.
R25 (KΩ) ( ±%) (K) (±%) Pmax(mW) δ(mW/°C) τ(Sec.) TL~TU(°C) UL cUL
TTS1A103□34D* 10 3435
TTS1A103□395* 10 3950
TTS1A103□39H* 10 3975
1, 2, 3
TTS1A103□425* 10 4250
TTS1A223□370* 22 3700 2, 3
TTS1A333□405* 33 4050 1, 2, 3
TTS1A104□436* 100
25/85
4360 2, 3
TTS1B104□410* 100
1, 2, 3, 5
25/50 4100 1, 2, 3
TTS2A502□39H* 5 3975
TTS2A103□34D* 10 3435
TTS2A103□396* 10 3960
TTS2A103□39H* 10 3975
TTS2A203□34D* 20 3435
1, 2, 3
TTS2A104□436* 100
25/85
4360 2, 3
TTS2B102□392* 1 3920
TTS2B502□39D* 5 3935
TTS2B104□410* 100 4100
1, 2, 3
TTS2B104□419* 100 4190
TTS2B474□439* 470
1, 2, 3, 5
25/50
4390 2, 3
45 ≧1 ≦10 -40 ~ +100
Note 1: □ = Tolerance of R25
* = Tolerance of B value
Note 2: UL/cUL File No: E138827
Note 3: Special specifications are available upon request.
T Type
D
L
Blue Teflon CP Wire
BLACK EPOXY
AI
d
Series Dmax. Amax. d L I
TTS1 1.8 6.0 0.30±0.02 70±5 2±0.5
(Unit: mm)
NTC Thermistor：TTS Series
Epoxy Bead Type for Temperature Sensing/Compensation
THINKING ELECTRONIC INDUSTRIAL CO., LTD. 49 www.thinking.com.tw 2012.08
All specifications are subject to change without notice.
0.1
1
10
100
1000
10000
-40-30-20-10 0 102030405060708090100
Max. Power Dissipation Derating Curve
R-T Characteristic Curves
0.01
0.1
1
10
100
1000
10000
100000
-40-30-20-100 102030405060708090100
100%
0 25 TU
0
TL
Ambient temperature ( )℃
TU : Maximum operating temperature (℃)
TL : Minimum operating temperature (℃)
For example:
Ambient temperature(Ta) = 55℃
Maximum operating temperature(TU) = 100℃
PTa=(TU-Ta)/(TU-25)×Pmax = 60% Pmax
1:TTS1A104□436*
2:TTS1B104□410*
3:TTS1A333□405*
4:TTS1A223□370*
5:TTS1A103□425*
6:TTS1A103□39H*
7:TTS1A103□395*
8:TTS1A103□34D*
1:TTS2B474□439*
2:TTS2A104□436*
3:TTS2B104□419*
4:TTS2A203□34D*
5:TTS2A103□39H*
6:TTS2A103□34D*
7:TTS2A502□39H*
8:TTS2B102□392*
Resistance
(
KΩ
)
TTS1A103□34D*~ TTS1B104□436*
Resistance
(
KΩ
)
TTS2B102□392*~ TTS2B474□439*
Temperature ( )℃
Temperature ( )℃
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
NTC Thermistor：TTS Series
Epoxy Bead Type for Temperature Sensing/Compensation
THINKING ELECTRONIC INDUSTRIAL CO., LTD. 50 www.thinking.com.tw 2012.08
All specifications are subject to change without notice.
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 10 mm (min.)
Tem
p
erature
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 Series
Epoxy Bead Type for Temperature Sensing/Compensation
THINKING ELECTRONIC INDUSTRIAL CO., LTD. 51 www.thinking.com.tw 2012.08
All specifications are subject to change without notice.
Reliability
Item Standard Test conditions / Methods Specifications
Tensile Strength
of Terminations IEC 60068-2-21
Gradually apply the specified force and keep the unit fixed for 10±1 sec.
Terminal diameter Force
(mm) (Kg)
d0.25≦ 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°, and then return to the original position. Repeat the
procedure in the opposite direction.
Terminal diameter Force
(mm) (Kg)
d0.25≦ 0.05
0.25<d 0.3≦ 0.125
0.3<d 0.5≦ 0.25
No visible damage
Solderability IEC 60068-2-20 245 ± 3 , 3 ℃± 0.3 sec.
At least 95% of terminal
electrode is covered by
new solder
Resistance to
Soldering Heat IEC 60068-2-20 260 ± 3 , 10 ± 1 sec℃. No visible damage
R∣△ 25/R25 3 %∣≦
High
Temperature
Storage
IEC 60068-2-2 100 ± 5 , 1000 ± 24 hrs℃ No visible damage
∣R△25/R25 5 %∣≦
Damp Heat,
Steady State IEC 60068-2-78 40 ± 2 , 90~95% RH, 1000 ± 24 hrs℃ No visible damage
R∣△ 25/R25 3 %∣≦
Rapid Change of
Temperature IEC 60068-2-14
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/R25 3 %∣≦
Max.
Power
Dissipation
IEC 60539-1 25 ± 5 , Pmax. ℃, 1000 ± 24 hrs No visible damage
R∣△ 25/R25 5 %∣≦
Packaging
Bulk Packing: 500 pcs/bag
Warehouse 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
