2920L Datasheet, PDF (1/5 Pages) Littelfuse – POLYFUSE® Resettable PTCs Surface Mount

POLYFUSE^® Resettable PTCs
Surface Mount
2920L Series
Agency Approvals
AGENCY AGENCY FILE NUMBER
E183209
R50082521
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
Maximum Time
Marking
I _hold
(A)
I _trip
(A)
V _max
(Vdc)
I _max
(A)
P_d
To Trip
max.
(W) ^{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
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
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 = Maximum voltage device can withstand without damage at rated current (I max)
max
I = Maximum fault current device can withstand without damage at rated voltage (V )
max
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.
2920L Series
Specifications are subject to change without notice.

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