©2008 Littelfuse, Inc. Revised: October 24, 2008
POLYFUSE® Resettable PTCs
1206L Series
1206L Series
Surface Mount > 1206L Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/1206L.html for current information.
1206L Series
The 1206L Series device provides surface mount
overcurrent protection for applications where space is at a
premium and resettable protection is desired.
Electrical Characteristics
Part Number* Marking I hold
(A)
I trip
(A)
V max
(Vdc)
I max
(A)
P d
max.
(W)
Maximum Time
To Trip Resistance Agency
Approvals
Current
(A)
Time
(Sec.)
R min
(Ω)
R typ
(Ω)
R 1max
(Ω)
1206L012 A 0.125 0.29 30 100 0.6 1.00 0.20 1.500 3.600 6.000 XX
1206L016 B 0.16 0.37 30 100 0.6 1.00 0.30 1.200 2.800 4.500 XX
1206L020–C C 0.20 0.42 24 100 0.6 8.00 0.10 0.650 1.550 2.600 XX
1206L025–C D 0.25 0.50 16 100 0.6 8.00 0.08 0.550 1.400 2.300 XX
1206L035–C E 0.35 0.75 6 100 0.6 8.00 0.10 0.300 0.750 1.200 XX
1206L035/16 J 0.35 0.75 16 100 0.6 8.00 0.10 0.300 0.750 1.200 XX
1206L050–C F 0.50 1.00 6 100 0.6 8.00 0.10 0.150 0.400 0.700 XX
1206L050/15 M 0.50 1.00 15 100 0.6 8.00 0.10 0.150 0.400 0.750 XX
1206L075–C G 0.75 1.50 6 100 0.6 8.00 0.20 0.090 0.200 0.290 XX
1206L100 N 1.00 1.80 6 100 0.8 8.00 0.30 0.055 0.110 0.210 XX
1206L110–C H 1.10 2.20 6 100 0.8 8.00 0.30 0.040 0.110 0.180 XX
1206L150–C K1.50 3.00 6 100 0.8 8.00 1.00 0.040 0.080 0.120 XX
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 (Vmax)
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.
Description
Agency Approvals
AGENCY AGENCY FILE NUMBER
E183209
R50119118
Features
Applications
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lead-free
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currents
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board space
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temperature solders
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for motherboards and
peripherals
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and port protection
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protection
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.
Revised: October 24, 2008 ©2008 Littelfuse, Inc.
POLYFUSE® Resettable PTCs
1206L Series
Surface Mount > 1206L Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/1206L.html for current information.
Ambient Operation Temperature
-40°C -20°C 0°C 23°C 40°C 50°C 60°C 70°C 85°C
Part Number* Hold Current (A)
1206L012 0.18 0.16 0.14 0.125 0.10 0.09 0.08 0.07 0.05
1206L016 0.22 0.20 0.18 0.16 0.14 0.12 0.10 0.09 0.08
1206L020–C 0.28 0.25 0.23 0.20 0.17 0.15 0.14 0.12 0.09
1206L025–C 0.37 0.33 0.29 0.25 0.22 0.20 0.17 0.15 0.12
1206L035–C 0.50 0.45 0.40 0.35 0.30 0.27 0.24 0.21 0.15
1206L035/16 0.50 0.45 0.40 0.35 0.30 0.27 0.24 0.21 0.15
1206L050–C 0.71 0.64 0.57 0.50 0.42 0.39 0.35 0.31 0.25
1206L050/15 0.71 0.64 0.57 0.50 0.42 0.39 0.35 0.31 0.25
1206L075–C 1.14 1.01 0.88 0.75 0.65 0.59 0.54 0.49 0.41
1206L100 1.45 1.31 1.15 1.00 0.84 0.77 0.69 0.61 0.48
1206L110–C 1.52 1.37 1.25 1.10 0.92 0.82 0.75 0.64 0.52
1206L150–C 2.18 1.94 1.72 1.50 1.28 1.17 1.06 0.96 0.77
Temperature Rerating
Temperature Rerating Curve
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80
10%
30%
50%
70%
90%
110%
130%
150%
170%
Temperature (°C)
Percentage of Rated Current
Average Time Current Curves
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.
0.01
0.1
1
10
100
1000
10000
100000
0.1 1 10 100
Time in Seconds
Current in Amperes
1206L
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
*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. Revised: October 24, 2008
POLYFUSE® Resettable PTCs
1206L Series
1206L Series
Surface Mount > 1206L Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/1206L.html for current information.
Environmental Specifications
Soldering Parameters
Preheating
120
180
220
260
060 to 100
Temperature (°C)
Soldering Cooling
120
50 to 150
Time(s)
Condition Reflow
Peak Temp/ Duration Time 260°C / 10 Sec
Time above liquids (TAL) 220°C 60 Sec ~ 100 Sec
Preheat 120°C~ 180°C 50 Sec ~ 150 Sec
Storage Condition 0°C~35°C, 70%RH
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oven, N2 environment for lead–free
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solvents.
Note: If reflow temperatures exceed the recommended profile,
devices may not meet the performance requirements.
Operating/Storage
Temperature -40°C to +85°C
Maximum Device Surface
Temperature in Tripped
State
125°C
Passive Aging +85°C, 1000 hours
-/+5% typical resistance change
Humidity Aging +85°C, 85%, R.H.,1000 hours
-/+5% typical resistance change
Thermal Shock
MIL–STD–202, Method 107G
+85°C/-40°C 20 times
-30% typical resistance change
Solvent Resistance MIL–STD–202, Method 215
No change
Vibration
MIL–STD–883C, Method 2007.1,
Condition A
No change
Moisture Sensivity Level Level 2, J–STD–020C
Physical Specifications
Terminal Material Solder-Plated Copper (Solder Material:
Matte Tin (Sn))
Lead Solderability Meets EIA Specification RS186-9E,
ANSI/J-STD-002 Category 3.
Revised: October 24, 2008 ©2008 Littelfuse, Inc.
POLYFUSE® Resettable PTCs
1206L Series
Surface Mount > 1206L Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/1206L.html for current information.
Part Ordering Number System*
PACKAGING STYLE
SIZE
L: LITTELFUSE SURFACE MOUNT PPTC
I
HOLD
HOLD CURRENT CODE
(Refer to Electrical Characteristics Table)
/XX: SPECIAL VOLTAGE RATING
(Not applicable to all parts. Refer to
Electrical Characteristics Table)
QUANTITY CODE: W=3000 Y=4000 P=2000
R: Tape & Reel
SERIES
1206 L 035 /16 W R
Dimensions
Part
Number*
AB CDE
Inches mm Inches mm Inches mm Inches mm Inches mm
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Min. Min Max. Min. Max.
1206L012 0.12 0.14 3 3.5 0.06 0.07 1.5 1.8 0.03 0.06 0.65 1.45 0.01 0.2 0.004 0.02 0.1 0.45
1206L016 0.12 0.14 3 3.5 0.06 0.07 1.5 1.8 0.03 0.06 0.65 1.45 0.01 0.2 0.004 0.02 0.1 0.45
1206L020–C 0.12 0.14 3 3.5 0.06 0.07 1.5 1.8 0.02 0.04 0.5 1 0.01 0.2 0.004 0.02 0.1 0.45
1206L025–C 0.12 0.14 3 3.5 0.06 0.07 1.5 1.8 0.02 0.04 0.5 1 0.01 0.2 0.004 0.02 0.1 0.45
1206L035–C 0.12 0.14 3 3.5 0.06 0.07 1.5 1.8 0.02 0.03 0.45 0.75 0.01 0.2 0.004 0.02 0.1 0.45
1206L035/16 0.12 0.14 3 3.5 0.06 0.07 1.5 1.8 0.02 0.03 0.45 0.75 0.01 0.2 0.004 0.02 0.1 0.45
1206L050–C 0.12 0.14 3 3.5 0.06 0.07 1.5 1.8 0.02 0.03 0.45 0.75 0.01 0.2 0.004 0.02 0.1 0.45
1206L050/15 0.12 0.14 3 3.5 0.06 0.07 1.5 1.8 0.02 0.03 0.45 0.75 0.01 0.2 0.004 0.02 0.1 0.45
1206L075–C 0.12 0.14 3 3.5 0.06 0.07 1.5 1.8 0.02 0.05 0.45 1.25 0.01 0.2 0.004 0.02 0.1 0.45
1206L100 0.12 0.13 3 3.4 0.06 0.07 1.5 1.8 0.03 0.04 0.75 1 0.01 0.2 0.004 0.02 0.1 0.45
1206L110–C 0.12 0.13 3 3.4 0.06 0.07 1.5 1.8 0.03 0.04 0.75 1 0.01 0.2 0.004 0.02 0.1 0.45
1206L150–C 0.12 0.13 3 3.4 0.06 0.07 1.5 1.8 0.03 0.06 0.85 1.4 0.01 0.2 0.004 0.02 0.1 0.45
C
Top
View
Pad
Layout
Side
View
Bottom
View
1.80 mm
(.071)
1.80 mm
(.071)
1.00 mm
(.040)
D
MARKING CODE VARIES
WITH AMPERAGE RATING
(SEE ELECTRICAL CHARACTERISTICS CHART)
SHOWN IS 1.0 AMP RATING
E
A
B
N
N
Packaging
Part Number* Ordering Number* I hold
(A) I hold Code Packaging
Option Quantity Quantity &
Packaging Codes
1206L012 1206L012WR 0.125 012 Tape and Reel 3000 WR
1206L016 1206L016WR 0.16 016 Tape and Reel 3000 WR
1206L020–C 1206L020YR 0.20 020 Tape and Reel 4000 YR
1206L025–C 1206L025YR 0.25 025 Tape and Reel 4000 YR
1206L035–C 1206L035YR 0.35 035 Tape and Reel 4000 YR
1206L035/16 1206L035/16YR 0.35 035 Tape and Reel 4000 YR
1206L050–C 1206L050YR 0.50 050 Tape and Reel 4000 YR
1206L050/15 1206L050/15YR 0.50 050 Tape and Reel 4000 YR
1206L075–C 1206L075WR 0.75 075 Tape and Reel 3000 WR
1206L100 1206L100WR 1.00 100 Tape and Reel 3000 WR
1206L110–C 1206L110WR 1.10 110 Tape and Reel 3000 WR
1206L150–C 1206L150PR 1.50 150 Tape and Reel 2000 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.
©2008 Littelfuse, Inc. Revised: October 24, 2008
POLYFUSE® Resettable PTCs
1206L Series
1206L Series
Surface Mount > 1206L Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/1206L.html for current information.
TAPE SPECIFICATIONS: EIA-481-1 (mm)
REEL DIMENSIONS:
EIA-481-1 (mm)
1206L020–C, 1206L025–C,
1206L035–C, 1206L035/16,
1206L050–C, 1206L050/15,
1206L075
1206L012,
1206L016,
1206L100,
1206L110–C
1206L150–C
W8.15+0.15-0.30 8.00+/- 0.30 8.15+0.15-0.30 H16.0+/- 0.2
F3.50+/- 0.05 3.50+/- 0.05 3.50+/- 0.05 W13.2+/- 1.5
E11.75+/- 0.10 1.75+/- 0.10 1.75+/- 0.10 DØ 60.2+/−0.5
D01.55+/- 0.05 1.55+/- 0.05 1.55+/- 0.05 FØ 13.0+/- 0.5
D11.00 (MIN) 1.00 (MIN) 1.00 (MIN) CØ 178+/- 1.0
P04.00+/- 0.10 4.00+/- 0.10 4.00+/- 0.10 H111+/- 0.5
P14.00+/- 0.10 4.00+/- 0.10 4.00+/- 0.10 W12.5+0.5
P22.00+/- 0.05 2.00+/- 0.05 2.00+/- 0.05 W23.0+0.5
A01.95+/- 0.10 1.95+/- 0.10 1.95+/- 0.10 W34.0+0.5
B03.65+/- 0.10 3.65+/- 0.10 3.65+/- 0.10 W45.0+0.5
T0.25+/- 0.10 0.25+/- 0.10 0.25+/- 0.10
K00.87+/- 0.10 1.30+/- 0.10 1.70+/- 0.10
Leader
min. 390 390 390
Trailer
min. 160 160 160
W
4
W
2
W
3
W
1
F
H1
W
C
D
H
D2
K0B0
A0
T
F
W
E1
P2
D0
P0
P1
Tape and Reel Specifications
Tape and Reel Diagram
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Littelfuse:
1206L160 1206L012WR 1206L016WR 1206L020YR 1206L025YR 1206L035YR 1206L050/15YR 1206L050YR
1206L035/16YR