1812L050PR Littelfuse Inc, 1812L050PR Datasheet
1812L050PR
Manufacturer Part Number
1812L050PR
Description
PTC .50A 15VDC RESETTABLE 1812L
Manufacturer
Littelfuse Inc
Series
POLYFUSE® 1812Lr
Specifications of 1812L050PR
Package / Case
1812 (4532 Metric)
R Min/max
0.150 ~ 1.000 Ohm
Voltage - Max
15V
Time To Trip
0.15s
Current - Hold (ih) (max)
500mA
Current - Trip (it)
1A
Current - Max
100A
Hold Current
0.5 Amp
Trip Current
1 Amp
Current Rating (max)
40 Amps
Resistance
1 Ohms
Maximum Voltage
15 VoltsDC
Termination Style
SMD/SMT
Mounting Style
SMD/SMT
Current Rating
40 Amps
Dimensions
4.47 mm L x 3.15 mm W x 0.61 mm H
Operating Temperature Range
- 40 C to + 85 C
Holding Current
500mA
Tripping Current
1A
Initial Resistance Max
1ohm
Operating Voltage
15VDC
Ptc Fuse Case
1812
External Depth
0.63mm
Fuse Terminals
SMD Caps
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
1812L050
1812L050-C
1812L050C
F2150TR
1812L050-C
1812L050C
F2150TR
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
1812L050PR
Manufacturer:
LITTLEFUSE
Quantity:
55 000
Company:
Part Number:
1812L050PR
Manufacturer:
LITTELFU
Quantity:
1 000
Part Number:
1812L050PR
Manufacturer:
LITTELFUSE/力特
Quantity:
20 000
Company:
Part Number:
1812L050PRT
Manufacturer:
COILCRAFT
Quantity:
2 400
© 2010 Littelfuse, Inc
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/1812L.html for current information.
I
I
V
I
Caution: Operation beyond the specified rating may result in damage and possible arcing and flame.
1 Effective September 15, 2009 onward, all 1812L PTC products will be manufactured Halogen Free (HF). Existing Non-Halogen Free 1812L PTC products will continue to be
sold until supplies are depleted. Effective January 1, 2010, all 1812L PTC product will be manufactured and sold as Halogen Free by default, and the “HF” part number suffix
code will be discontinued -- Refer to Part Ordering Number System and Packaging Options sections for additional information.
2 Some older references to these devices may include “–C“ in the Part Number. The “–C“ should be omitted when placing new orders for the device.
3 Part numbers ending in “TH” refer to new lower profile devices. For these items the “TH” suffix must be included in the ordering instructions.
Please refer also to the Dimensions and Part Ordering Number System sections of this document for additional information. Orders for the original thicker product (No TH in
part number) may be accepted in some instances through October 31, 2009. Please contact Littelfuse for additional information or arrangements.
hold
trip
max
max
Agency Approvals
AGENCY
Electrical Characteristics
1812L200TH
1812L260TH
= Trip current: minimum current at which the device will trip in 20°C still air.
Part Number
= Hold current: maximum current device will pass without tripping in 20°C still air.
= Maximum fault current device can withstand without damage at rated voltage (V
1812L035/30
1812L050/30
1812L075/24
1812L075/33
1812L150/12
1812L150/24
1812L160/12
1812L260/12
1812L110/16
1812L110/24
1812L110/33
1812L125
= Maximum voltage device can withstand without damage at rated current (I max)
1812L125/6
1812L050
1812L075
1812L125
1812L150
1812L160
1812L110
1812L020
1812L300
1812L010
1812L014
/16
2
2
2
2
AGENCY FILE NUMBER
E183209
R50119118
2
2
2,3
2,3
1812L Series
LF035-30
LF050-30
LF075-24
LF075-33
LF150-24
LF260-12
LF110-24
LF110-33
LF125-16
LF150-12
LF160-12
Marking
LF110-16
LF125-6
LF020
LF050
LF075
LF125
LF150
LF160
LF200
LF260
LF300
LF010
LF014
LF110
0.20
0.35
0.50
0.50
0.75
0.75
0.75
2.00
2.60
2.60
3.00
I
0.10
0.14
1.25
1.25
1.25
1.50
1.50
1.50
1.60
1.60
1.10
1.10
1.10
1.10
(A)
hold
3.00
3.00
3.00
5.00
5.00
5.00
0.30
0.34
0.40
0.75
1.00
1.00
1.50
1.50
1.50
2.20
1.95
1.95
1.95
2.50
2.50
2.50
2.80
2.80
3.50
I
(A)
trip
Surface Mount > 1812L Series
POLYFUSE
(Vdc)
V
13.2
30
60
30
30
15
30
24
33
16
24
33
15
16
12
24
12
12
6
6
8
8
8
8
6
max
I
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
(A)
20
20
20
20
10
max
Revised: July 12, 2010
max
typ.
(W)
)
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
P
®
d
39
Resettable PTCs
P
R
R
R
Current
d
min
typ
1max
Description
The 1812L Series PTC provides surface mount overcurrent
protection for applications where resettable protection is
desired.
Features
Applications
Max. Time To Trip
0.50
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
= Power dissipated from device when in the tripped state at 20°C still air.
1.50
(A)
= Typical resistance of device in initial (un-soldered) state.
for motherboards and
peripherals
= Minimum resistance of device in initial (un-soldered) state.
and halogen-free
= Maximum resistance of device at 20°C measured one hour after tripping or reflow
soldering of 260°C for 20 sec.
(Sec.)
Time
0.15
0.02
0.02
0.15
0.15
0.20
0.20
0.20
0.30
0.30
0.50
0.50
0.40
0.40
0.40
0.30
0.50
1.00
1.00
2.00
2.50
5.00
4.00
1.50
1.50
1
0.800
0.800
0.150
0.150
0.100
0.040
0.060
0.060
0.060
0.050
0.050
0.050
0.040
0.040
0.040
0.030
0.030
0.020
1.600
1.500
0.110
0.110
0.015
0.015
0.012
R
(Ω)
Resistance
min
15.000
6.000
5.000
5.000
0.400
0.200
0.200
1.000
1.000
0.450
0.290
0.210
0.180
0.250
0.140
0.140
0.120
0.100
0.100
0.070
0.047
0.055
0.040
0.110
0.110
R
(Ω)
1max
temperature solders
protection
Agency Approvals
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
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1812L050PR Summary of contents
Page 1
Series Agency Approvals AGENCY AGENCY FILE NUMBER E183209 R50119118 Electrical Characteristics I I hold trip Part Number Marking (A) (A) 1812L010 LF010 0.10 0.30 1812L014 LF014 0.14 0.34 1812L020 LF020 0.20 0.40 1812L035/30 LF035-30 0.35 0.75 2 LF050 0.50 ...
Page 2
POLYFUSE Temperature Rerating -40°C -20°C Part Number 1812L010 0.16 0.14 1812L014 0.23 0.19 1812L020 0.29 0.26 1812L035/30 0.50 0.45 1812L050 0.77 0.68 1812L050/30 0.77 0.68 1812L075 1.15 1.01 1812L075/24 1.06 0.95 1812L075/33 1.10 1.00 1812L110 1.59 1.43 1812L110/16 1.58 1.43 ...
Page 3
Average Time Current Curves 1000 100 10 1 0.10 0 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 ...
Page 4
POLYFUSE Dimensions MARKING CODE VARIES WITH AMPERAGE AND VOLTAGE RATING (See Electrical Characteristics Table) SHOWN ARE: - 1.1A/6V RATING (LEFT) - 1.1A/33V RATING (RIGHT) A Top 110 B View 3.45 mm Bottom 110 Pad View Layout D E 1.78mm (.070”) ...
Page 5
... Ordering Number Halogen Free* 1812L010DRHF Yes 1812L010 1812L010DR 1812L014DRHF Yes 1812L014 1812L014DR 1812L020PRHF Yes 1812L020 1812L020PR 1812L035/30 1812L035/30DR Yes 1812L050PRHF Yes 1812L050 1812L050PR 1812L050/30 1812L050/30PR Yes 1812L075PRHF Yes 1812L075 1812L075PR 1812L075/24DRHF Yes 1812L75/24 1812L075/24DR 1812L075/33DRHF Yes 1812L75/33 1812L075/33DR 1812L110PRHF Yes 1812L110 1812L110PR ...
Page 6
POLYFUSE Tape and Reel Specifications TAPE SPECIFICATIONS: EIA-481-1 (mm) 1812L020 1812L035/30 1812L050 1812L075 1812L110 1812L125/6 1812L150 1812L160 1812L200TH 12.00+0.30-0.10 W 5.50+/- 0.05 F 1.75+/- 0. 1.50+0. 1.50+0. 4.00+/- 0. 8.00+/- 0.10 P ...