Littelfuse 1812L200-C

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Item Description: Resettable Fuses - PPTC 8V 2.0A-HD 40A MAX




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Littelfuse 0822
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Technical Document


DISCLAIMER: The information provided herein is solely for informational purposes. Customers must be aware of the suitability of this product for their application, and consider that variable factors such as Manufacturer, Product Category, Date Codes, Pictures and Descriptions may differ from available inventory.

www.littelfuse.com
©2006 Littelfuse
POLYFUSE
®
Resettable PTCs
Surface Mount
1812L Series
Specifications are subject to change without notice.
1
Electronics Designers Guide
1812L Series
The 1812L series device provides surface mount
overcurrent protection for applications where 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)
1812L010 LF010 0.10 0.30 30 100 0.8 0.50
1.50 1.600 7.000 15.000 X X
1812L014 LF014 0.14 0.34 60 10 0.8 1.50
0.15 1.500 4.000 6.000 X X
1812L020 LF020 0.20 0.40 30 100 0.8 8.00
0.02 0.800 2.900 5.000 X X
1812L050-C LF050 0.50 1.00 15 100 0.8 8.00
0.15 0.150 0.600 1.000 X X
1812L075-C LF075 0.75 1.50 13.2 100 0.8 8.00
0.20 0.100 0.260 0.450 X X
1812L075/24 LF075-24 0.75 1.50 24 100 0.8 8.00
0.20 0.110 0.200 0.290 X X
1812L075/33 LF075-33 0.75 1.50 33 20 0.8 8.00
0.20 0.110 0.260 0.400 X X
1812L110-C LF110 1.10 2.20 6 100 0.8 8.00
0.30 0.040 0.120 0.210 X X
1812L110/16 LF110-16 1.10 1.95 16 100 0.8 8.00
0.50 0.060 0.120 0.180 X X
1812L110/33 LF110-33 1.10 1.95 33 20 0.8 8.00
0.50 0.060 0.120 0.200 X X
1812L125-C LF125 1.25 2.50 15 100 0.8 8.00
0.40 0.050 0.160 0.250 X X
1812L125/6
LF125-6 1.25 2.50 6 100 0.8 8.00
0.40 0.050 0.090 0.140 X X
1812L150-C LF150 1.50 3.00 8 100 0.8 8.00 0.30 0.040 0.070 0.110 X X
1812L150/12 LF150-12 1.50 3.00 12 100 0.8 8.00 0.50 0.040 0.070 0.110 X X
1812L150/24 LF150-24 1.50 3.00 24 20 0.8 8.00 1.50 0.040 0.070 0.120 X X
1812L160-C
LF160
1.60 2.80 8 100 0.8 8.00 1.00 0.030 0.066 0.100 X X
Description
Applications
Plug and play protection
for motherboards and
peripherals
USB peripherals
PCI cards
Game console port
protection
Agency Approvals
AGENCY AGENCY FILE NUMBER
E183209
R50082521
Features
RoHS compliant and
lead-free
Fast response to fault
currents
Compact design saves
board space
Low resistance
Low-profile
Compatible with high
temperature solders
www.littelfuse.com
©2006 Littelfuse
POLYFUSE
®
Resettable PTCs
Surface Mount
1812L Series
Specifications are subject to change without notice.
2
Electronics Designers Guide
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.
Electrical Characteristics (continued)
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)
1812L160/12 LF160-12 1.60 2.80 12 100 0.8
8.00 1.00
0.030 0.066 0.100
X X
1812L200-C
LF200 2.00 3.50 8 100 0.8
8.00 2.00
0.020 0.040 0.060
X X
1812L260-C
LF260 2.60 5.00 6 100 0.8
8.00 2.50
0.015 0.030 0.047
X X
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)
1812L010 0.16 0.14 0.12 0.10 0.08 0.07 0.06 0.05 0.03
1812L014 0.23 0.19 0.17 0.14 0.12 0.10 0.09 0.08 0.06
1812L020 0.29 0.26 0.23 0.20 0.17 0.15 0.14 0.12 0.10
1812L050-C
0.77 0.68 0.59 0.50 0.44 0.40 0.37 0.33 0.29
1812L075-C
1.15 1.01 0.88 0.75 0.65 0.60 0.55 0.49 0.43
1812L075/24 1.06 0.95 0.84 0.75 0.60 0.55 0.50 0.45 0.37
1812L075/33 1.10 1.00 0.88 0.75 0.66 0.60 0.56 0.47 0.36
1812L110-C
1.59 1.43 1.26 1.10 0.95 0.87 0.80 0.71 0.60
1812L110/16 1.58 1.43 1.27 1.10 0.95 0.85 0.77 0.71 0.58
1812L110/33 1.55 1.40 1.25 1.10 0.93 0.83 .073 .063 .050
1812L125-C
2.00 1.75 1.52 1.25 1.00 0.95 0.90 0.75 0.53
1812L125/6 2.00 1.75 1.52 1.25 1.00 0.95 0.90 0.75 0.53
1812L150-C 2.06 1.93 1.79 1.50 1.28 1.10 1.02 0.80 0.68
1812L150/12 2.04 1.88 1.68 1.50 1.25 1.10 1.00 0.80 0.60
1812L150/24 2.05 1.87 1.67 1.50 1.25 1.08 0.95 0.77 0.60
1812L160-C
2.20 2.06 1.91 1.60 1.36 1.17 1.09 0.85 0.72
1812L160/12 2.18 2.01 1.79 1.60 1.34 1.16 1.07 0.83 0.60
1812L200-C
3.08 2.71 2.35 2.00 1.80 1.60 1.50 1.07 0.80
1812L260-C
4.00 3.52 3.06 2.60 2.34 2.08 1.95 1.39 1.04
Temperature Rerating
www.littelfuse.com
©2006 Littelfuse
POLYFUSE
®
Resettable PTCs
Surface Mount
1812L Series
Specifications are subject to change without notice.
3
Electronics Designers Guide
Temperature Rerating Curve
Average Time Current Curves
CURRENT IN AMPERES
TIME
IN
SECONDS
0.001
0.010
0.100
1
10
100
1000
10000
100000
0.100 1 10 1000.02
0.100A
0.140A
0.200A
0.500A
0.750A
0.750
A/33V
1.10A/16V
1.10A/33V
1.10A
1.25A
1.25A/6V
1.50A/12V
1.50A-/8V
1.50A/24V
1.60A/12V
1.60A
1.60A/8
2.00A
2.60A
1812L Series
Specifications are subject to change without notice.
Note: 1.00 means the number one with two decimal places.
AKL V3.9 06.05.10
0.750
A/24V
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.
12NEXT

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