POLYFUSE
®
Resettable PTCs
Surface Mount > 1206L Series
1206L Series
Description
The 1206L Series device provides surface mount
overcurrent protection for applications where space is at a
premium and resettable protection is desired.
Features
lead-free
currents
board space
Agency Approvals
AGENCY
AGENCY FILE NUMBER
E183209
R50119118
temperature solders
Applications
and port protection
for motherboards and
peripherals
protection
Electrical Characteristics
P
d
max.
(W)
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.8
0.8
0.8
Maximum Time
To Trip
Current
(A)
1.00
1.00
8.00
8.00
8.00
8.00
8.00
8.00
8.00
8.00
8.00
8.00
Time
(Sec.)
0.20
0.30
0.10
0.08
0.10
0.10
0.10
0.10
0.20
0.30
0.30
1.00
R
min
(Ω)
1.500
1.200
0.650
0.550
0.300
0.300
0.150
0.150
0.090
0.055
0.040
0.040
Resistance
R
typ
(Ω)
3.600
2.800
1.550
1.400
0.750
0.750
0.400
0.400
0.200
0.110
0.110
0.080
R
1max
(Ω)
6.000
4.500
2.600
2.300
1.200
1.200
0.700
0.750
0.290
0.210
0.180
0.120
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Part Number*
Marking
I
hold
(A)
0.125
0.16
0.20
0.25
0.35
0.35
0.50
0.50
0.75
1.00
1.10
1.50
I
trip
(A)
0.29
0.37
0.42
0.50
0.75
0.75
1.00
1.00
1.50
1.80
2.20
3.00
V
max
(Vdc)
30
30
24
16
6
16
6
15
6
6
6
6
I
max
(A)
100
100
100
100
100
100
100
100
100
100
100
100
Agency
Approvals
1206L012
1206L016
1206L020–C
1206L025–C
1206L035–C
1206L035/16
1206L050–C
1206L050/15
1206L075–C
1206L100
1206L110–C
1206L150–C
A
B
C
D
E
J
F
M
G
N
H
K
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.
R
typ
= Typical resistance of device in initial (un-soldered) state.
R
1max
= Maximum resistance of device at 20°C measured one hour after tripping or reflow
soldering of 260°C for 20 sec.
Caution:
Operation beyond the specified rating may result in damage and possible arcing and flame.
*Note:
Some devices in this product series may have “–C“ in the Part Number. The “–C“ should be omitted when placing orders for the device.
©2008 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/1206L.html for current information.
Revised: October 24, 2008
1206L Series
1206L Series
POLYFUSE
®
Resettable PTCs
Surface Mount > 1206L Series
Temperature Rerating
Ambient Operation Temperature
-40°C
Part Number*
1206L012
1206L016
1206L020–C
1206L025–C
1206L035–C
1206L035/16
1206L050–C
1206L050/15
1206L075–C
1206L100
1206L110–C
1206L150–C
0.18
0.22
0.28
0.37
0.50
0.50
0.71
0.71
1.14
1.45
1.52
2.18
0.16
0.20
0.25
0.33
0.45
0.45
0.64
0.64
1.01
1.31
1.37
1.94
0.14
0.18
0.23
0.29
0.40
0.40
0.57
0.57
0.88
1.15
1.25
1.72
0.125
0.16
0.20
0.25
0.35
0.35
0.50
0.50
0.75
1.00
1.10
1.50
-20°C
0°C
23°C
40°C
Hold Current (A)
0.10
0.14
0.17
0.22
0.30
0.30
0.42
0.42
0.65
0.84
0.92
1.28
0.09
0.12
0.15
0.20
0.27
0.27
0.39
0.39
0.59
0.77
0.82
1.17
0.08
0.10
0.14
0.17
0.24
0.24
0.35
0.35
0.54
0.69
0.75
1.06
0.07
0.09
0.12
0.15
0.21
0.21
0.31
0.31
0.49
0.61
0.64
0.96
0.05
0.08
0.09
0.12
0.15
0.15
0.25
0.25
0.41
0.48
0.52
0.77
50°C
60°C
70°C
85°C
*Note:
Some devices in this product series may have “–C“ in the Part Number. The “–C“ should be omitted when placing orders for the device.
Average Time Current Curves
0.12A
0.16A
0.20A
0.25A
0.35A
0.35A/15V
0.50A
0.50A/15V
0.75A
1.0A
1.1A
1.5A
2.0A
Temperature Rerating Curve
170%
150%
Percentage of Rated Current
130%
110%
90%
70%
50%
30%
10%
-40 -30 -20
-10
0
10
100000
1206L
10000
1000
Time in Seconds
100
20 30
40
Temperature (°C)
50
60
70
80
10
1
0.1
0.01
0.1
1
10
100
Current in Amperes
The average time current curves and Temperature Rerating curve performance is affected
by a number or variables, and these curves provided as guidance only. Customer must
verify the performance in their application.
1206L Series
Revised: October 24, 2008
©2008 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/1206L.html for current information.
POLYFUSE
®
Resettable PTCs
Surface Mount > 1206L Series
Soldering Parameters
Condition
Peak Temp/ Duration Time
Time above liquids (TAL) 220°C
Preheat 120°C~ 180°C
Storage Condition
oven, N
2
environment for lead–free
Reflow
260°C / 10 Sec
60 Sec ~ 100 Sec
0°C~35°C, 70%RH
Temperature (°C)
260
220
Soldering
Cooling
50 Sec ~ 150 Sec
Preheating
180
120
solvents.
Note:
If reflow temperatures exceed the recommended profile,
devices may not meet the performance requirements.
0
50 to 150
60 to 100
Time(s)
120
Physical Specifications
Solder-Plated Copper (Solder Material:
Matte Tin (Sn))
Meets EIA Specification RS186-9E,
ANSI/J-STD-002 Category 3.
Environmental Specifications
Operating/Storage
Temperature
Maximum Device Surface
Temperature in Tripped
State
Passive Aging
Humidity Aging
Terminal Material
Lead Solderability
-40°C to +85°C
125°C
+85°C, 1000 hours
-/+5% typical resistance change
+85°C, 85%, R.H.,1000 hours
-/+5% typical resistance change
MIL–STD–202, Method 107G
+85°C/-40°C 20 times
-30% typical resistance change
MIL–STD–202, Method 215
No change
MIL–STD–883C, Method 2007
.1,
Condition A
No change
Level 2, J–STD–020C
Thermal Shock
Solvent Resistance
Vibration
Moisture Sensivity Level
©2008 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/1206L.html for current information.
Revised: October 24, 2008
1206L Series
1206L Series
POLYFUSE
®
Resettable PTCs
Surface Mount > 1206L Series
Dimensions
MARKING CODE VARIES
WITH AMPERAGE RATING
(SEE ELECTRICAL CHARACTERISTICS CHART)
SHOWN IS 1.0 AMP RATING
Part Ordering Number System*
1206 L 035 /16 W R
PACKAGING STYLE
R:
Tape
& Reel
A
C
SERIES
QUANTITY CODE:
W=3000 Y=4000 P=2000
/XX: SPECIAL VOLTAGE RATING
(Not applicable to all parts. Refer to
Electrical Characteristics
Table)
I
HOLD
HOLD CURRENT CODE
(Refer to Electrical Characteristics
Table)
Top
View
N
N
D
B
Side
View
Bottom
View
Pad
Layout
E
1.80 mm
(.071)
L: LITTELFUSE SURFACE MOUNT PPTC
1.80 mm
(.071)
SIZE
1.00 mm
(.040)
Part
Number*
1206L012
1206L016
1206L020–C
1206L025–C
1206L035–C
1206L035/16
1206L050–C
1206L050/15
1206L075–C
1206L100
1206L110–C
1206L150–C
A
Inches
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.14
0.14
0.14
0.14
0.14
0.14
0.14
0.14
0.14
0.13
0.13
0.13
3
3
3
3
3
3
3
3
3
3
3
3
mm
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.4
3.4
3.4
Inches
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.07
0.07
0.07
0.07
0.07
0.07
0.07
0.07
0.07
0.07
0.07
0.07
B
mm
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
Inches
0.03
0.03
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.03
0.03
0.03
0.06
0.06
0.04
0.04
0.03
0.03
0.03
0.03
0.05
0.04
0.04
0.06
C
mm
0.65
0.65
0.5
0.5
0.45
0.45
0.45
0.45
0.45
0.75
0.75
0.85
1.45
1.45
1
1
0.75
0.75
0.75
0.75
1.25
1
1
1.4
Min.
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
D
Inches mm
Min.
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
Inches
Min
0.004 0.02
0.004 0.02
0.004 0.02
0.004 0.02
0.004 0.02
0.004 0.02
0.004 0.02
0.004 0.02
0.004 0.02
0.004 0.02
0.004 0.02
0.004 0.02
E
mm
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.45
0.45
0.45
0.45
0.45
0.45
0.45
0.45
0.45
0.45
0.45
0.45
Max. Min. Max.
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max.
Packaging
Part Number*
1206L012
1206L016
1206L020–C
1206L025–C
1206L035–C
1206L035/16
1206L050–C
1206L050/15
1206L075–C
1206L100
1206L110–C
1206L150–C
Ordering Number*
1206L012WR
1206L016WR
1206L020YR
1206L025YR
1206L035YR
1206L035/16YR
1206L050YR
1206L050/15YR
1206L075WR
1206L100WR
1206L110WR
1206L150PR
I
hold
(A)
0.125
0.16
0.20
0.25
0.35
0.35
0.50
0.50
0.75
1.00
1.10
1.50
I
hold
Code
012
016
020
025
035
035
050
050
075
100
110
150
Packaging
Option
Tape and Reel
Tape and Reel
Tape and Reel
Tape and Reel
Tape and Reel
Tape and Reel
Tape and Reel
Tape and Reel
Tape and Reel
Tape and Reel
Tape and Reel
Tape and Reel
Quantity
3000
3000
4000
4000
4000
4000
4000
4000
3000
3000
3000
2000
Quantity &
Packaging Codes
WR
WR
YR
YR
YR
YR
YR
YR
WR
WR
WR
PR
*Note:
Some devices in this product series may have “–C“ in the Part Number. The “–C“ should be omitted when placing orders for the device.
1206L Series
Revised: October 24, 2008
©2008 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/1206L.html for current information.
POLYFUSE
®
Resettable PTCs
Surface Mount > 1206L Series
Tape and Reel Specifications
TAPE SPECIFICATIONS: EIA-481-1
(mm)
1206L020–C, 1206L025–C,
1206L035–C, 1206L035/16,
1206L050–C, 1206L050/15,
1206L075
1206L012,
1206L016,
1206L100,
1206L110–C
REEL DIMENSIONS:
EIA-481-1
(mm)
1206L150–C
W
F
E
1
D
0
D
1
P
0
P
1
P
2
A
0
B
0
T
K
0
Leader
min.
Trailer
min.
8.15+0.15-0.30
3.50+/- 0.05
1.75+/- 0.10
1.55+/- 0.05
1.00 (MIN)
4.00+/- 0.10
4.00+/- 0.10
2.00+/- 0.05
1.95+/- 0.10
3.65+/- 0.10
0.25+/- 0.10
0.87+/- 0.10
390
160
8.00+/- 0.30
3.50+/- 0.05
1.75+/- 0.10
1.55+/- 0.05
1.00 (MIN)
4.00+/- 0.10
4.00+/- 0.10
2.00+/- 0.05
1.95+/- 0.10
3.65+/- 0.10
0.25+/- 0.10
1.30+/- 0.10
390
160
8.15+0.15-0.30
3.50+/- 0.05
1.75+/- 0.10
1.55+/- 0.05
1.00 (MIN)
4.00+/- 0.10
4.00+/- 0.10
2.00+/- 0.05
1.95+/- 0.10
3.65+/- 0.10
0.25+/- 0.10
1.70+/- 0.10
390
160
H
W
D
F
C
H
1
W
1
W
2
W
3
W
4
16.0+/- 0.2
13.2+/- 1.5
Ø 60.2+/−0.5
Ø 13.0+/- 0.5
Ø 178+/- 1.0
11+/- 0.5
2.5+0.5
3.0+0.5
4.0+0.5
5.0+0.5
Tape and Reel Diagram
H
P
1
P
0
D
0
P
2
E
1
W
4
W
3
D
F
W
W
2
C
T
D
2
F
W
1
W
A
0
K
0
B
0
H
1
©2008 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/1206L.html for current information.
Revised: October 24, 2008
1206L Series
1206L Series
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