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PDF 2920L Data sheet ( Hoja de datos )

Número de pieza 2920L
Descripción Resettable PTCs Surface Mount
Fabricantes Littelfuse 
Logotipo Littelfuse Logotipo



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2920L Series
Agency Approvals
AGENCY AGENCY FILE NUMBER
E183209
R50082521
POLYFUSE® Resettable PTCs
Surface Mount
Description
The 2920L series device provides surface mount
overcurrent protection for medium voltage (60V)
applications where resettable protection is desired.
Features
• RoHS compliant and
lead-free
• Fast response to fault
currents
• High voltage
• Low-profile
Applications
• IEE1394 port protection
• P owered ethernet port
protection (IEEE 802.3 af)
• Automotive electronic
control module protection
• Low voltage telecom
equipment protection
Electrical Characteristics
Part Number
2920L030
2920L050
2920L075
2920L100
2920L125
2920L150
2920L185
2920L200
2920L200/24
2920L250
2920L260
2920L300
2920L300/15
Marking
I hold
(A)
I trip
(A)
V max
(Vdc)
I max
(A)
mPadx.
(W)
Maximum Time
To Trip
Current Time
(A) (Sec.)
LF030
0.30 0.60 60
10 1.50 1.50
3.00
LF050
0.50 1.00 60
10 1.50 2.50
4.00
LF075
0.75 1.50 30
40 1.50 8.00
0.30
LF100
1.10 2.20 33
40 1.50 8.00
0.50
LF125
1.25 2.50 15
40 1.50 8.00
2.00
LF150
1.50 3.00 33
40 1.50 8.00
2.00
LF185
1.85 3.70 33
40 1.50 8.00
2.50
LF200
2.00 4.00 15
40 1.50 8.00
5.00
LF200-24 2.00 4.00 24
40 1.50 8.00
5.00
LF250
2.50 5.00 15
40 1.50 8.00
10.00
LF260 2.60 5.00 6
40 1.50 8.00
10.00
LF300 3.00 5.00 6
40 1.50 8.00
20.00
LF300-15 3.00 5.00 15
40 1.50 8.00
20.00
Resistance
R min
(Ω)
1.200
0.350
0.350
0.120
0.070
0.080
0.065
0.050
0.050
0.035
0.025
0.015
0.015
R typ
(Ω)
3.000
0.870
0.670
0.270
0.160
0.150
0.110
0.090
0.090
0.060
0.050
0.033
0.033
R 1max
(Ω)
4.800
1.400
1.000
0.410
0.250
0.230
0.150
0.125
0.125
0.085
0.075
0.048
0.048
Agency
Approvals
XX
XX
XX
XX
XX
XX
XX
XX
XX
XX
XX
XX
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.
Caution: Operation beyond the specified rating may result in damage and possible arcing
and flame.
2920L Series
Specifications are subject to change without notice.

Electronics Designers Guide
www.littelfuse.com
©2006 Littelfuse

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2920L pdf
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Packaging
I hold (A)
0.30
0.50
0.75
1.10
1.25
1.50
1.85
2.00
2.50
2.60
3.00
I hold Code
030
050
075
100
125
150
185
200
250
260
300
POLYFUSE® Resettable PTCs
Surface Mount
Voltage
Option
/24
/15
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
Tape and Reel
Quantity
1500
1500
1500
2000
2000
1500
1500
1500
1500
1500
2000
1500
1500
Quantity &
Packaging Codes
DR
DR
DR
PR
PR
DR
DR
DR
DR
DR
PR
DR
DR
2920L Series
Specifications are subject to change without notice.

Electronics Designers Guide
www.littelfuse.com
©2006 Littelfuse

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