Positive Thermal Coefficent
Diodes
SMD2018P030~200 Series
The SMD2018 Series PTC provides surface mount overcurrent protection for applications where space is at a
premium and resettable protection is desired.
Features
• RoHS compliant, lead-free and halogen-free
• Fast response to fault currents
• Compact design saves board space
• Low resistance
• Low-profile
• Compatible with high temperature solders
ROHS
Applications
• USB peripherals
• Disk drives
• CD-ROMs
• Plug and play protection for motherboards
and peripherals
• Mobile phones - battery and port protection
• Disk drives
• PDAs / digital cameras
• Game console port protection
Dimension
MARKING CODE VARIES
WITH AMPERAGE RA
TING
(See Electrical Characteristic Table)
SHOWN IS 1.0AMP RATING
1.5
A
1.5
4.6
3.4
Top
View
N
N
D
B
Bottom
View
N
D
C
Side
View
Bottom
View
Model
A
E
B
Max.
5.44
5.44
5.44
5.44
5.44
5.44
C
Max.
4.93
4.93
4.93
4.93
4.93
4.93
D
Max.
1.10
1.10
0.80
0.80
0.80
0.80
Min.
4.72
4.72
4.72
4.72
4.72
4.72
Min.
4.22
4.22
4.22
4.22
4.22
4.22
Min.
0.60
0.60
0.45
0.45
0.45
0.40
Min.
0.30
0.30
0.30
0.30
0.30
0.30
SMD2018P030TF
SMD2018P050TF
SMD2018P100TF
SMD2018P100TF/33
SMD2018P150TF
SMD2018P200TF
All data is subject to change,Please check our data sheets at
www ruilon com
for updates.
©2012 RuiLong Yuan,Inc.
PTC 01
Electriacl Characteristics
Type Number
SMD2018P030TF
SMD2018P050TF
SMD2018P100TF
SMD2018P100TF/33
SMD2018P150TF
SMD2018P200TF
I
hold
(A)
0.30
0.55
1.10
1.10
1.50
2.00
I
trip
(A)
0.60
1.20
2.20
2.20
3.00
4.20
V
max
V
(dc)
60
60
15
33
15
10
I
max
(A)
100
100
100
100
100
100
P
d
max.
(W)
0.9
1.0
1.1
1.1
1.1
1.1
Maximum Time
To Trip
Current
Time
(A)
(Sec.)
1.5
2.5
8.0
8.0
8.0
8.0
3.0
3.0
0.4
0.4
0.8
2.4
Resistance
R
min
(Ω)
0.50
0.20
0.06
0.06
0.05
0.03
R
1max
(Ω)
2.30
1.00
0.36
0.36
0.17
0.10
I
hold
= Hold current: maximum current device will pass without tripping in 20°C still air.
I
trip
= Trip current: minimum current at which the device will trip in 20°C still air.
V
max
= Maximum voltage device can withstand without damage at rated current (I
max
)
I
max
= Maximum fault current device can withstand without damage at rated voltage (V
max
)
P
d
= Power dissipated from device when in the tripped state at 20°C still air.
R
min
= Minimum resistance of device in initial (un-soldered) state.
Thermal Derating Chart-IH(A)
Model
SMD2018P030TF
SMD2018P050TF
SMD2018P100TF
SMD2018P100TF/33
SMD2018P150TF
SMD2018P200TF
Maximum ambient operating temperature (Tmao) vs. hold current (Ihold)
-40°C
0.48
0.87
1.71
1.71
2.38
2.95
-20°C
0.42
0.77
1.52
1.52
2.10
2.65
0°C
0.35
0.67
1.32
1.32
1.82
2.35
25°C
0.30
0.55
1.10
1.10
1.50
2.00
40°C
0.24
0.46
0.94
0.94
1.27
1.74
50°C
0.21
0.41
0.84
0.84
1.13
1.59
60°C
0.17
0.36
0.74
0.74
0.99
1.44
70°C
0.15
0.31
0.64
0.64
0.85
1.29
85°C
0.10
0.23
0.50
0.50
0.64
1.06
Thermal Deratin g Cu r v e
Derating Curves for SMD2018 Series
160
Typ ical Time-To-Tri p At 25° C
Average Time Current Curves
100
10
Time In Second
1
150
050
Percentage of Derated Current
140
120
100
80
60
40
20
0
-40
-20
0
20
40
60
80
100
0.1
0.01
0.001
0.1
1
10
100
030
200
133
Temperature (°C)
Current In Amperes
PTC 02
All data is subject to change,Please check our data sheets at
www ruilon com
for updates.
©2012 RuiLong Yuan,Inc.
Recommended Solder Reflow Conditions
300
250
200
190
160
100
0
Preheating
Soldering
Temperature(°C)
Cooling
•Recommended
reflow methods IR, vapor phase oven, hot air oven.
：
•Devices
are not designed to be wave soldered to the bottom side
of the board.
•Recommended
maximum paste thickness is 0.25 mm (0.010 inch).
•Devices
can be cleaned using standard method and solvents.
Note If reflow temperatures exceed the recommended profile,
：
devices may not meet the performance requirements.
60-120
sec.
30-60
sec.
120
sec.
Tape And Reel S pecifications (mm )
Governing Specifications
W
P
0
P
1
P
2
A
0
B
0
B
1
max.
D
0
F
E
1
E
2
min.
Tmax.
T
1
max.
K
0
Leader min.
Trailer min.
Reel Dimensions
A max.
N min.
W
1
W
2
max.
EIA 481-2
12.0 ± 0.20
4.0 ± 0.10
8.0 ± 0.10
2.0 ± 0.05
4.40 ± 0.10
5.50 ± 0.10
8.2
1.5 + 0.1, -0.0
5.5 ± 0.05
1.75 ± 0.10
10.25
0.6
0.1
1.36 ± 0.1
390
160
178
50
12.4 + 2.0, -0.0
18.4
EIA Tape Com ponent Dimentions
P
0
T
Cover tape
A
0
Embossment
D
0
P
2
E
1
F
B
0
W
E
2
B
1
K
0
T
1
P
1
EIA Reel Dimentions
W2(measured at hub)
A
Cover tape
Carrier tape
Embossed cavity
0
N(hub dia.)
W1(measured at hub)
Stora ge And Handlin g
•
Storage conditions：40°C max, 70% R.H.
•
Devices may not meet specified performance
if storage conditions are exceeded.
Or d er In f o r m at i o n
SMD2018
Product name
050
Hold
Current
0.50A
Pac k agin g
Tape & Reel Quantity
030, 050 1,500 pcs/reel
2,500 pcs/reel
Size 5045 mm / 2018 mils
SMD：surface mount device
Tape & reel packaging per EIA481-1
100, 100-33V, 150, 200
All data is subject to change,Please check our data sheets at
www ruilon com
for updates.
©2012 RuiLong Yuan,Inc.
PTC 03
RUILONG.YUAN CO.,LTD
Tel: +86- 0755-82908296
Fax: +86- 0755-82908002
RuiLongYuan Electronics are trademarks.
Email:
jack@ruilon.com
Website:
http://www.ruilon.com
Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each
product selected for their own applications. RUILONYUAN Electronics reserves the right to change or update, without notice, any information
contained in this publication; to change, without notice, the design, construction, processing, or specification of any product; and to discontinue
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expressly disclaims all implied warranties regarding the information contained herein, including, but not limited to, any implied warranties of
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Standard Terms and Conditions of Sale and in no case will RUILONYUAN Electronics be liable for any incidental, indirect, or consequential
damages.
PTC 04
All data is subject to change,Please check our data sheets at
www ruilon com
for updates.
©2012 RuiLong Yuan,Inc.
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