Positive Thermal Coefficient (PTC)
Description
The 1206 series provides miniature surface mount over-
current protection with holding current from 0.05A to 3.5A.
This series is suitable for wide range of applications in
modern electronics where space is limited.
SMD1206 Series
Features
l
I(hold): 0.05~3.5A
l
Very high voltage surge capabilities
l
Available in lead-free version
l
Fast response to fault current
l
RoHS compliant, Lead- Free and Halogen-Free
l
Low resistance
l
Compact design saves board space
l
Compatible with high temperature solders
Applications
l
USB peripherals
l
Disk drives
l
CD-ROMs
l
General electronics
l
Disk drives
l
Set-top-box and HDMI
l
Mobile Internet Device
(MID)
l
PDAs / digital cameras
l
Game console port
protection
l
Plug and play protection
for motherboards and
peripherals
l
Mobile phones - battery
and port protection
Part Number Code
S
M
D
1
2
0
6
P
x
x
x
T
F
/
x
x
Surface Mount
Device
Device size
code
Polytronics
Symbol
Current Rating
T: Thin Version
(Optional)
F: Lead-free
Special Voltage
Rating (Optional)
Environmental Specifications
Test
Passive aging
Humidity aging
Thermal shock
Resistance to solvent
Vibration
Ambient operating conditions : - 40°C to +85°C
Maximum surface temperature of the device in the tripped state is 125
°C
Conditions
+85℃,1000 hrs
+85℃，85%R.H.,168 hours
+85℃ to -40℃，20times
MIL-STD-202，Method 215
MIL-STD-202，Method 201
Resistance change
±5%
typical
±5%
typical
±33%
typical
No change
No change
Specifications are subject to change without notice.
Please refer to http://
www.ruilon.com.cn
for current information.
Revised: 2019-04-29
Page:1
Positive Thermal Coefficient (PTC)
Performance Specification
I
hold
Type Number
A
SMD1206P005TF
SMD1206P010TF
SMD1206P012TF
SMD1206P016TF
SMD1206P016TF/24
SMD1206P016TF/33
SMD1206P020TF
SMD1206P020TF/30
SMD1206P025TF
SMD1206P025TF/24
SMD1206P025TF/30
SMD1206P035TF
SMD1206P035TF/16
SMD1206P035TF/30
SMD1206P050TF
SMD1206P050TF/13.2
SMD1206P050TF/16
SMD1206P050TF/24
SMD1206P050TF/30
SMD1206P075TF
SMD1206P075TF/13.2
SMD1206P075TF/16
SMD1206P075TF/24
SMD1206P075TF/30
SMD1206P100TF
SMD1206P100TF/16
SMD1206P100TF/24
SMD1206P110TF
SMD1206P110TF/16
SMD1206P110TF/24
SMD1206P150TF
SMD1206P150TF/13.2
SMD1206P150TF/16
SMD1206P200TF
SMD1206P200TF/12
SMD1206P260TF
SMD1206P300TF
SMD1206P350TF
0.05
0.10
0.12
0.16
0.16
0.16
0.20
0.20
0.25
0.25
0.25
0.35
0.35
0.35
0.50
0.50
0.50
0.50
0.50
0.75
0.75
0.75
0.75
0.75
1.00
1.00
1.00
1.10
1.10
1.10
1.50
1.50
1.50
2.00
2.00
2.60
3.00
3.50
A
0.15
0.25
0.29
0.37
0.37
0.37
0.46
0.46
0.50
0.50
0.50
0.75
0.75
0.75
1.00
1.00
1.00
1.00
1.00
1.50
1.50
1.50
1.50
1.50
1.80
1.80
1.80
2.20
2.20
2.20
3.00
3.00
3.00
3.50
3.50
5.20
6
7
V
DC
60
60
60
16
24
33
24
30
16
24
30
6
16
30
6
13.2
16
24
30
6
13.2
16
24
30
6
16
24
6
16
24
6
13.2
16
6
12
6
6
6
I
trip
V
max
Max.
Time to Trip
Current
T
max
A
S
0.25
0.50
0.50
1.00
1.00
1.00
8.00
8.00
8.00
8.00
8.00
8.00
8.00
8.00
8.00
8.00
8.00
8.00
8.00
8.00
8.00
8.00
8.00
8.00
8.00
8.00
8.00
8.00
8.00
8.00
8.00
8.00
8.00
8.00
8.00
8.00
8.00
10.00
1.50
1.00
1.00
0.30
0.30
0.30
0.08
0.08
0.08
0.08
0.08
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.20
0.20
0.20
0.20
0.20
0.30
0.30
0.30
0.30
0.30
0.30
0.30
0.30
0.30
1.50
1.50
2.00
4.00
5.00
I
max
A
10
10
10
10
10
10
10
10
10
10
10
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
P
d typ
W
0.4
0.4
0.4
0.4
0.4
0.4
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.8
0.8
0.8
0.8
0.8
0.8
1.0
1.2
Ri
min
Ω
3.60
1.60
1.60
1.00
1.00
1.00
0.35
0.35
0.35
0.35
0.35
0.25
0.25
0.25
0.15
0.15
0.15
0.15
0.15
0.09
0.09
0.09
0.09
0.09
0.05
0.05
0.05
0.04
0.04
0.04
0.025
0.025
0.025
0.015
0.015
0.01
0.01
0.005
SMD1206 Series
R1
max
Package
Ω
50
15
15
6
6
6
2.7
2.7
2.5
2.5
2.5
1.3
1.3
1.3
0.7
0.7
0.7
0.7
0.7
0.5
0.5
0.5
0.5
0.5
0.27
0.27
0.27
0.25
0.25
0.25
0.13
0.13
0.13
0.08
0.08
0.06
0.05
0.04
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
V
max
= Maximum operating voltage device can withstand without damage at rated current (Imax).
I
max
= Maximum fault current device can withstand without damage at rated voltage (V max).
I
hold
= Hold Current. Maximum current device will not trip in 25°C still air.
I
trip
= Trip Current. Minimum current at which the device will always trip in 25°C still air.
P
d
= Power dissipation when device is in the tripped state in 25°C still air environment at rated voltage.
Ri
min/max
= Minimum/Maximum device resistance prior to tripping at 25°C.
R1
max
= Maximum device resistance is measured one hour post reflow.
Specifications are subject to change without notice.
Please refer to http://
www.ruilon.com.cn
for current information.
Revised: 2019-04-29
Page:2
Positive Thermal Coefficient (PTC)
Thermal Derating Chart-Ih(A)
Ambient Operation Temperature
Part Number
SMD1206P005TF
SMD1206P010TF
SMD1206P012TF
SMD1206P016TF
SMD1206P016TF/24
SMD1206P016TF/33
SMD1206P020TF
SMD1206P020TF/30
SMD1206P025TF
SMD1206P025TF/24
SMD1206P025TF/30
SMD1206P035TF
SMD1206P035TF/16
SMD1206P035TF/30
SMD1206P050TF
SMD1206P050TF/13.2
SMD1206P050TF/16
SMD1206P050TF/24
SMD1206P050TF/30
SMD1206P075TF
SMD1206P075TF/13.2
SMD1206P075TF/16
SMD1206P075TF/24
SMD1206P075TF/30
SMD1206P100TF
SMD1206P100TF/16
SMD1206P100TF/24
SMD1206P110TF
SMD1206P110TF/16
SMD1206P110TF/24
SMD1206P150TF
SMD1206P150TF/13.2
SMD1206P150TF/16
SMD1206P200TF
SMD1206P200TF/12
SMD1206P260TF
SMD1206P300TF
SMD1206P350TF
-40
ºC
0.074
0.148
0.18
0.24
0.24
0.24
0.30
0.30
0.37
0.37
0.37
0.50
0.50
0.50
0.71
0.71
0.71
0.71
0.71
1.14
1.14
1.14
1.14
1.14
1.45
1.45
1.45
1.60
1.60
1.60
2.18
2.18
2.18
2.88
2.88
3.43
4.05
4.65
-20
ºC
0.066
0.132
0.16
0.21
0.21
0.21
0.26
0.26
0.33
0.33
0.33
0.45
0.45
0.45
0.64
0.64
0.64
0.64
0.64
1.01
1.01
1.01
1.01
1.01
1.31
1.31
1.31
1.45
1.45
1.45
1.94
1.94
1.94
2.63
2.63
3.22
3.66
4.23
0
ºC
0.058
0.116
0.14
0.18
0.18
0.18
0.23
0.23
0.29
0.29
0.29
0.40
0.40
0.40
0.57
0.57
0.57
0.57
0.57
0.88
0.88
0.88
0.88
0.88
1.15
1.15
1.15
1.30
1.30
1.30
1.72
1.72
1.72
2.34
2.34
2.93
3.36
3.92
25
ºC
0.05
0.10
0.12
0.16
0.16
0.16
0.20
0.20
0.25
0.25
0.25
0.35
0.35
0.35
0.50
0.50
0.50
0.50
0.50
0.75
0.75
0.75
0.75
0.75
1.00
1.00
1.00
1.10
1.10
1.10
1.50
1.50
1.50
2.00
2.00
2.60
3.00
3.50
40
ºC
0.0425
0.085
0.10
0.14
0.14
0.14
0.17
0.17
0.22
0.22
0.22
0.30
0.30
0.30
0.42
0.42
0.42
0.42
0.42
0.65
0.65
0.65
0.65
0.65
0.84
0.84
0.84
0.95
0.95
0.95
1.28
1.28
1.28
1.74
1.74
2.23
2.50
2.92
50
ºC
0.0375
0.075
0.09
0.13
0.13
0.13
0.15
0.15
0.20
0.20
0.20
0.27
0.27
0.27
0.39
0.39
0.39
0.39
0.39
0.59
0.59
0.59
0.59
0.59
0.77
0.77
0.77
0.80
0.80
0.80
1.17
1.17
1.17
1.58
1.58
2.03
2.28
2.68
60
ºC
0.035
0.07
0.08
0.12
0.12
0.12
0.14
0.14
0.17
0.17
0.17
0.24
0.24
0.24
0.35
0.35
0.35
0.35
0.35
0.54
0.54
0.54
0.54
0.54
0.69
0.69
0.69
0.72
0.72
0.72
1.06
1.06
1.06
1.42
1.42
1.87
2.00
2.35
SMD1206 Series
70
ºC
0.03
0.06
0.07
0.11
0.11
0.11
0.12
0.12
0.15
0.15
0.15
0.21
0.21
0.21
0.31
0.31
0.31
0.31
0.31
0.49
0.49
0.49
0.49
0.49
0.61
0.61
0.61
0.66
0.66
0.66
0.96
0.96
0.96
1.17
1.17
1.57
1.62
1.91
85
ºC
0.0275
0.055
0.07
0.10
0.10
0.10
0.11
0.11
0.12
0.12
0.12
0.15
0.15
0.15
0.25
0.25
0.25
0.25
0.25
0.41
0.41
0.41
0.41
0.41
0.48
0.48
0.48
0.55
0.55
0.55
0.77
0.77
0.77
0.93
0.93
1.35
1.35
1.42
Specifications are subject to change without notice.
Please refer to http://
www.ruilon.com.cn
for current information.
Revised: 2019-04-29
Page:3
Positive Thermal Coefficient (PTC)
Thermal Derating Curve
Derating Curves for SMD1206 Series
Percentage of Derated Current
100
160
140
Time In Seconds
120
100
80
60
40
20
0
-40
-20
0
20
40
60
80
Temperature (°C)
0.01
0.1
10
SMD1206 Series
Average Time-Current Curve
Average Time Current Curves
0.05A
0.10A
0.12A
0.16A
0.20A
0.25A
0.35A
0.50A
0.75A
1.00A
1.10A
1.50A
2.00A
2.50A
2.60A
3.00A
3.50A
1
0.1
1
Current in Amperes
10
Soldering Parameters
Reflow Condition
-Temperature Min (T
s(min)
)
Pre
Heat
T
P
Ramp-up
Critical Zone
T
L
to T
P
Pb - Free assembly
150°C
200°C
60 -180 Seconds
3°C/second max
3°C/second max
217°C
60 -150 Seconds
260 +0/-5°C
20 - 40 Seconds
6°C/second max
8 minutes Max
260°C
-Temperature Max (T
s(max)
)
- Time (min to max) (t
s
)
T
L
T
S(max)
Average ramp up rate ( Liquids Temp
T
L
) to peak
T
S(max)
to TL - Ramp-up Rate
Temperature
Ramp-down
T
S(min)
Preheat
Reflo
w
- Temperature (T
L
) (Liquids)
- Time (min to max) (t
s
)
Peak Temperature (T
P
)
Time
Time within 5°C of actual peak
Temperature (t
p
)
Ramp-down Rate
Time 25°C to peak Temperature (T
P
)
Do not exceed
25
Time to peak temperature
(t 25℃ to peak)
Specifications are subject to change without notice.
Please refer to http://
www.ruilon.com.cn
for current information.
Revised: 2019-04-29
Page:4
Positive Thermal Coefficient (PTC)
Lead style code
SMD1206 Series
Recommended Pad Layout (mm.)
Dimensions
Package Dimensions (mm)
Type Number
min
SMD1206P005TF
SMD1206P010TF
SMD1206P012TF
SMD1206P016TF
SMD1206P016TF/24
SMD1206P016TF/33
SMD1206P020TF
SMD1206P020TF/30
SMD1206P025TF
SMD1206P025TF/24
SMD1206P025TF/30
SMD1206P035TF
SMD1206P035TF/16
SMD1206P035TF/30
SMD1206P050TF
SMD1206P050TF/13.2
SMD1206P050TF/16
SMD1206P050TF/24
SMD1206P050TF/30
SMD1206P075TF
SMD1206P075TF/13.2
SMD1206P075TF/16
SMD1206P075TF/24
SMD1206P075TF/30
SMD1206P100TF
SMD1206P100TF/16
SMD1206P100TF/24
SMD1206P110TF
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
A
max
3.6
3.6
3.6
3.6
3.6
3.6
3.6
3.6
3.6
3.6
3.6
3.6
3.6
3.6
3.6
3.6
3.6
3.6
3.6
3.6
3.6
3.6
3.6
3.6
3.6
3.6
3.6
3.6
min
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
B
max
1.9
1.9
1.9
1.9
1.9
1.9
1.9
1.9
1.9
1.9
1.9
1.9
1.9
1.9
1.9
1.9
1.9
1.9
1.9
1.9
1.9
1.9
1.9
1.9
1.9
1.9
1.9
1.9
min
0.6
0.6
0.6
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.35
0.35
0.40
0.35
0.35
0.35
0.50
0.50
0.35
0.50
0.50
0.50
0.50
0.35
0.5
0.5
0.35
C
max
1.2
1.2
1.2
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
0.8
0.8
0.9
0.8
0.8
0.8
1.0
1.0
0.8
1.0
1.0
1.0
1.0
0.8
1.0
1.0
0.8
D
min
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
min
0.118
0.118
0.118
0.118
0.118
0.118
0.118
0.118
0.118
0.118
0.118
0.118
0.118
0.118
0.118
0.118
0.118
0.118
0.118
0.118
0.118
0.118
0.118
0.118
0.118
0.118
0.118
0.118
A
max
0.142
0.142
0.142
0.142
0.142
0.142
0.142
0.142
0.142
0.142
0.142
0.142
0.142
0.142
0.142
0.142
0.142
0.142
0.142
0.142
0.142
0.142
0.142
0.142
0.142
0.142
0.142
0.142
min
0.059
0.059
0.059
0.059
0.059
0.059
0.059
0.059
0.059
0.059
0.059
0.059
0.059
0.059
0.059
0.059
0.059
0.059
0.059
0.059
0.059
0.059
0.059
0.059
0.059
0.059
0.059
0.059
Package Dimensions (in)
B
max
0.075
0.075
0.075
0.075
0.075
0.075
0.075
0.075
0.075
0.075
0.075
0.075
0.075
0.075
0.075
0.075
0.075
0.075
0.075
0.075
0.075
0.075
0.075
0.075
0.075
0.075
0.075
0.075
min
0.024
0.024
0.024
0.016
0.016
0.016
0.016
0.016
0.016
0.016
0.016
0.014
0.014
0.016
0.014
0.014
0.014
0.020
0.020
0.014
0.020
0.020
0.020
0.020
0.014
0.020
0.020
0.014
C
max
0.047
0.047
0.047
0.039
0.039
0.039
0.039
0.039
0.039
0.039
0.039
0.031
0.031
0.035
0.031
0.031
0.031
0.039
0.039
0.031
0.039
0.039
0.039
0.039
0.031
0.039
0.039
0.031
D
min
0.004
0.004
0.004
0.004
0.004
0.004
0.004
0.004
0.004
0.004
0.004
0.004
0.004
0.004
0.004
0.004
0.004
0.004
0.004
0.004
0.004
0.004
0.004
0.004
0.004
0.004
0.004
0.004
Specifications are subject to change without notice.
Please refer to http://
www.ruilon.com.cn
for current information.
Revised: 2019-04-29
Page:5
stm32/stm8
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