NTC Thermistor：TSM Series
SMD Type NTC Thermistor for Temperature Sensing
THINKING ELECTRONIC INDUSTRIAL CO., LTD. 66 www.thinking.com.tw 2012.08
All specifications are subject to change without notice.
Features
1. RoHS & Halogen Free (HF) compliant
2. EIA size: 0201, 0402, 0603, 0805
3. Highly reliable structure
4. Operating temperature range: -40 ~℃+125℃
5. Wide resistance range
6. Cost effective
7. Agency recognition: UL / cUL / TUV
Recommended Applications
1. Battery pack
2. Motherboard, notebook and personal computer device
3. Liquid crystal display
4. Cellular phone
5. Bluetooth headset
6. Wi-Fi module
Part Number Code
Structure and Dimensions
(Unit: mm)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Part No. Size L1 W H max. L2 & L3
TSMA 0201 0.60±0.05 0.30±0.05 0.35 0.15±0.05
TSM0 0402 1.00±0.15 0.50±0.10 0.60 0.20±0.10
TSM1 0603 1.60±0.15 0.80±0.15 0.95 0.40±0.15
TSM2 0805 2.00±0.20 1.25±0.20 1.00 0.40±0.20
Product Type
TSM
THINKING
NTC Thermistor
TSM Series
Size (EIA)
A 0201
0 0402
1 0603
2 0805
Definition
of
B Value
A B25/85
B B25/50
Zero Power
Resistance at 25℃
(R25)
102 10x102Ω= 1 KΩ
103 10x103Ω=10 KΩ
473 47x103Ω= 47KΩ
Tolerance
of R25
F±1%
G±2%
H±3%
J±5%
K ±10%
B Value
338 3380
34D 3435
395 3950
39H 3975
405 4050
Tolerance
of B Value
1 ±1%
2 ±2%
3 ±3%
Packaging
R Reel
B Bulk
Optional Suffix
ZRoHS & HF
Compliant
NTC Thermistor：TSM Series
SMD Type NTC Thermistor for Temperature Sensing
THINKING ELECTRONIC INDUSTRIAL CO., LTD. 67 www.thinking.com.tw 2012.08
All specifications are subject to change without notice.
Electrical Characteristics
Safety
Approvals
Zero Power
Resistance
at 25°C
Tolerance
of
R25
B
Value
Tolerance
of
B value
Max. Power
Dissipation
at 25℃
Dissipation
Factor
Thermal
Time
Constant
Operating
Temperature
Range
Part No. Size
R25(KΩ) ( ±%) (K) (±%) Pmax(mW) δ(mW/°C) τ(Sec.) TL~TU(°C)
UL/
cUL TUV CQC
TSMAB103□338* 10 3380
TSMAB683□425* 68 4250
TSMAB104□425*
0201
100
1, 2, 3,
5, 10 25/50
4250
1, 2, 3 140 Approx.
1.4
Approx.
1.2 -40 ~ +125
TSM0A103□34D* 10 3435
TSM0A103□395* 10 3950
TSM0A223□395* 22 3950
TSM0A333□405* 33 4050
TSM0A683□410* 68 4100
TSM0A104□405* 100 4050
TSM0A104□436* 100
25/85
4360
TSM0B103□338* 10 3380
TSM0B473□405* 47 4050
TSM0B104□354* 100 3540
TSM0B104□480* 100 4800
TSM0B224□470* 220
1, 2, 3,
5, 10
4700
1, 2, 3
TSM0B474□470*
0402
470 5, 10
25/50
4700 3
170 Approx.
1.7
Approx.
2.0 -40 ~ +125
TSM1A202□340* 2 3400
TSM1A472□34D* 4.7 3435
TSM1A472□370* 4.7 3700
TSM1A502□34D* 5 3435
TSM1A502□385* 5 3850
TSM1A682□34D* 6.8 3435
TSM1A682□395* 6.8 3950
TSM1A103□34D* 10 3435
TSM1A103□39H* 10
1, 2,
3, 5, 10
3975
1, 2, 3
TSM1A103□430* 10 5, 10 4300 3
TSM1A223□392* 22 3920
TSM1A473□39H* 47 3975
TSM1A683□39H* 68 3975
TSM1A104□405* 100 4050
TSM1A104□436* 100 4360
TSM1A154□406* 150 4060
TSM1A204□410* 200 4100
TSM1A474□415* 470
1, 2,
3, 5, 10
25/85
4150
1, 2, 3
TSM1B221□350* 0.22 3500
TSM1B222□395* 2.2 3950
TSM1B472□425* 4.7
5, 10
4250
3
TSM1B103□338* 10 3380
TSM1B103□420* 10 4200
TSM1B104□355* 100 3550
TSM1B224□460*
0603
220
1, 2, 3,
5, 10
25/50
4600
1, 2, 3
210 Approx.
2.1
Approx.
3.1 -40~+125
TSM2A 502□34D* 5 3435
TSM2A103□34D* 10 3435
TSM2A103□395* 10 3950
TSM2A473□39H* 47 3975
TSM2A104□405* 100
1, 2, 3,
5, 10
4050
1, 2, 3
TSM2A684□450*
0805
680 5, 10
25/85
4500 3
240 Approx.
2.4
Approx.
5.4 -40~+125
Note 1: □ = Tolerance of R25
* = Tolerance of B value
Note 2: UL&cUL File No. E138827 / TUV File No. R 50167657
Note 3: Special specifications are available upon request
NTC Thermistor：TSM Series
SMD Type NTC Thermistor for Temperature Sensing
THINKING ELECTRONIC INDUSTRIAL CO., LTD. 68 www.thinking.com.tw 2012.08
All specifications are subject to change without notice.
Resistance
(
KΩ
)
TSMAB103□338* ~ TSMAB104□425*
Temperature ( )℃
Max. Power Dissipation Derating Curve
R-T Characteristic Curves
TU : Maximum operating temperature (℃)
TL : Minimum operating temperature (℃)
For example:
Ambient temperature (Ta) = 55 ℃
Maximum operating temperature (TU) = 125℃
PTa=(TU-Ta)/(TU-25)×Pmax = 70% Pmax
100%
0 25 TU
0
TL
Ambient temperature ( )℃
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
1:TSMAB104□425*
2:TSMAB683□425*
3:TSMAB103□338*
1
2
3
Resistance
(
KΩ
)
TSM0A103□34D* ~ TSM0B474□470*
Temperature ( )℃
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
1
2
3
4
5
6
7
1:TSM0B474□470*
2:TSM0B104□480*
3:TSM0A104□405*
4:TSM0A683□410*
5:TSM0B473□405*
6:TSM0A223□395*
7:TSM0A103□34D*
NTC Thermistor：TSM Series
SMD Type NTC Thermistor for Temperature Sensing
THINKING ELECTRONIC INDUSTRIAL CO., LTD. 69 www.thinking.com.tw 2012.08
All specifications are subject to change without notice.
0.01
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
1:TSM1A204□410*
2:TSM1A104□436*
3:TSM1A683□39H*
4:TSM1A223□392*
5:TSM1A103□39H*
6:TSM1A682□395*
7:TSM1A472□370*
8:TSM1A502□385*
9:TSM1A202□340*
Resistance
(
KΩ
)
TSM1A202□340* ~ TSM1A204□410*
TSM0B103□338* ~ TSM0B224□470*
Temperature ( )℃
Temperature
()
℃
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
Resistance
(
KΩ
)
Temperature ( )℃
TSM1A472□34D* ~ TSM1A474□415* TSM1B221□350* ~ TSM1B224□460*
0.001
0.01
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
1:TSM0B224□470*
2:TSM0A104□436*
3:TSM0B104□354*
4:TSM0A333□405*
5:TSM0A103□395*
6:TSM0B103□338*
Temperature ( )℃
Resistance
(
K
Ω
)
1:TSM1B224□460*
2:TSM1B104□355*
3:TSM1B103□420*
4:TSM1B103□338*
5:TSM1B472□425*
6:TSM1B222□395*
7:TSM1B221□350*
0.1
1
10
100
1000
10000
100000
-40-30-20-100 102030405060708090100110120130
1:TSM1A474□415*
2:TSM1A154□406*
3:TSM1A104□405*
4:TSM1A473□39H*
5:TSM1A103□34D*
6:TSM1A682□34D*
7:TSM1A502□34D*
8:TSM1A103□430*
9:TSM1A472□34D*
Resistance
(
K
Ω
)
1
2
3
4
5
6
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
NTC Thermistor：TSM Series
SMD Type NTC Thermistor for Temperature Sensing
THINKING ELECTRONIC INDUSTRIAL CO., LTD. 70 www.thinking.com.tw 2012.08
All specifications are subject to change without notice.
TSM2A502□34D* ~ TSM2A684□450*
Resistance
(
KΩ
)
Temperature
()
℃
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
Soldering Recommendation
IR-reflow Soldering Profile
1:TSM2A684□450*
2:TSM2A104□405*
3:TSM2A473□39H*
4:TSM2A103□395*
5:TSM2A103□34D*
6:TSM2A502□34D*
3℃/sec
(max.)
60~180
sec
20~40
sec
150±20℃
Time
Cooling
Peak temp
Temperature
255~260℃
150~200℃
T
amb
3℃/sec
(max.)
6℃/sec
(max.)
217℃
60~150 sec
t
8 minutes max.
Preheating
1
2
3
4
5
6
NTC Thermistor：TSM Series
SMD Type NTC Thermistor for Temperature Sensing
THINKING ELECTRONIC INDUSTRIAL CO., LTD. 71 www.thinking.com.tw 2012.08
All specifications are subject to change without notice.
Recommended Reworking Conditions with Soldering Iron
Item Conditions
Temperature of Soldering Iron-tip 360℃ (max.)
Soldering Time 3 sec. (max.)
Diameter of Soldering Iron-tip Φ3mm (max.)
Caution: Please do not touch the component surface with soldering iron directly to
avoid its damage.
Recommended Soldering Pad Dimensions
Size Z (mm) G (mm) X (mm) Y (mm)
0201 0.8 0.3 0.3 0.25
0402 1.7 0.5 0.6 0.6
0603 3.0 1.0 1.0 1.0
0805 3.4 1.0 1.4 1.2
Y
G
X
Z
NTC Thermistor：TSM Series
SMD Type NTC Thermistor for Temperature Sensing
THINKING ELECTRONIC INDUSTRIAL CO., LTD. 72 www.thinking.com.tw 2012.08
All specifications are subject to change without notice.
Notice of Soldering and Mounting on PC Board
For mounting SMDs on a PC board, supporting pin is suggested for use (refer to figure b) to avoid cracks caused by
external stress (refer to figure a).
If circuit bending is needed for PC board design, please refer to figure (c) for mounting positions to avoid cracks caused
by stress imposed on the product. O means better, △ is acceptable, and X is worst.
During circuit bending, please locate SMDs horizontally to the direction in which stress act to avoid its cracks (refer to figure d).
SMDs are located nea
r
an easil
y
warped area
Stress at the separate line is
possible to damage SMDs.
Locate SMDs horizontall
y
to the direction that stress acts
Nozzle fo
r
Chip Mounting
Supporting Pins
(b) Correct
Nozzle for
Chip Mounting
PC Board
Board Guide
(a) Incorrect
(c)Cracks
(d) Component Orientation
Incorrect Orientation Correct Orientation
NTC Thermistor：TSM Series
SMD Type NTC Thermistor for Temperature Sensing
THINKING ELECTRONIC INDUSTRIAL CO., LTD. 73 www.thinking.com.tw 2012.08
All specifications are subject to change without notice.
Reliability
Item Standard Test conditions / Methods Specifications
Bending Strength IEC 60068-2-21
Warp : 2mm for 0402,0603 and 0805
1mm for 0201
Speed ＜ 0.5mm/sec.
Duration: 10 sec. on PCB
No visible damage
R∣△ 25/R25 5 %∣≦
Solderability IEC 60068-2-58 245 ± 5℃, 3 ± 0.3 sec.
At least 95% of terminal
electrode is covered by
new solder
Resistance to
Soldering Heat IEC 60068-2-58 260 ± 5 , 10 ± 1 sec.℃ No visible damage
R∣△ 25/R25 3 %∣≦
High
Temperature
Storage
IEC 60068-2-2 125 ± 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 on PCB.
Step Temperature ( )℃ Period (minutes)
1 -40 ± 5 30 ± 3
2 Room temperature 5 ± 3
3 125 ± 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 %∣≦
NTC Thermistor：TSM Series
SMD Type NTC Thermistor for Temperature Sensing
THINKING ELECTRONIC INDUSTRIAL CO., LTD. 74 www.thinking.com.tw 2012.08
All specifications are subject to change without notice.
Package
Taping Specification
A0
±0.05
B0
±0.12
W
±0.2
E
±0.1
F
±0.05
P1
±0.1
P2
±0.05
P0
±0.1
D0
±0.1
K0
±0.1
0201 0.38 0.68 8 1.75 3.5 2 2 4 1.55 0.38
0402 0.62 1.12 8 1.75 3.5 2 2 4 1.55 0.60
A0
±0.2
B0
±0.2
W
±0.2
E
±0.1
F
±0.05
P1
±0.1
P2
±0.05
P0
±0.1
D0
±0.1
K0
±0.1
0603 1.1 1.9 8 1.75 3.5 4 2 4 1.55 0.95
0805 1.5 2.3 8 1.75 3.5 4 2 4 1.55 1.0
Index
Size
(Unit: mm)
Index
Size
(
Unit: mm
)
NTC Thermistor：TSM Series
SMD Type NTC Thermistor for Temperature Sensing
THINKING ELECTRONIC INDUSTRIAL CO., LTD. 75 www.thinking.com.tw 2012.08
All specifications are subject to change without notice.
Quantity
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
Size Quantity (pcs/reel)
0201 15,000
0402 10,000
0603 4,000
0805 3,500
