POLY-FUSE® Resettable PTCs
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/20/19
Surface Mount > 2920L Series
The 2920L Series PTC provides surface mount overcurrent
protection for medium voltage (≤60V) 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 typ.
(W)
Maximum Time
To Tr i p Resistance Agency
Approvals
Current
(A)
Time
(Sec.)
R min
(Ω)
R 1max
(Ω)
2920L030 LF030 0.30 0.60 60 10 1.50 1.50 3.00 1.200 4.800 X X
2920L050 LF050 0.50 1. 0 0 60 10 1.50 2.50 4.00 0.350 1.400 X X
2920L075 LF075 0.75 1.50 30 40 1.50 8.00 0.30 0.350 1.000 X X
2920L075/60 LF075-60 0.75 1.50 60 10 1.50 8.00 0.30 0.300 0.950 X X
2920L100 LF100 1.10 2.20 33 40 1.50 8.00 0.50 0.120 0.410 X X
2920L110/60 LF110 1.10 2.20 60 20 2.00 8.00 0.50 0.120 0.410 X X
2920L125 LF125 1.25 2.50 15 40 1.50 8.00 2.00 0.070 0.250 X X
2920L150 LF150 1.50 3.00 33 40 1.50 8.00 2.00 0.080 0.230 X X
2920L185 LF185 1.85 3.70 33 40 1.50 8.00 2.50 0.050 0.150 X X
2920L200 LF200 2.00 4.00 15 40 1.50 8.00 5.00 0.050 0.125 X X
2920L200/24 LF200-24 2.00 4.00 24 40 1.50 8.00 5.00 0.050 0.125 X X
2920L250 LF250 2.50 5.00 15 40 1.50 8.00 5.00 0.035 0.085 X X
2920L260 LF260 2.60 5.00 6 40 1.50 8.00 10.00 0.025 0.075 X X
2920L260/24 LF260-24 2.60 5.00 24 40 1.50 8.00 5.00 0.025 0.075 X X
2920L300 LF300 3.00 5.00 6 40 1.50 8.00 20.00 0.015 0.048 X X
2920L300/15 LF300-15 3.00 5.00 15 40 1.50 8.00 20.00 0.015 0.048 X X
2920L330/24 LF330 3.3 5.50 24 40 2.0 8.00 5.00 0.015 0.055 X X
2920L400/15 LF400 4.00 8.00 15 40 1.50 20.00 4.00 0.010 0.040 X X
2920L500/16 LF500-16 5.00 10.00 16 40 2.0 20.00 5.00 0.005 0.025 X X
2920L600/12 LF600-12 6.00 12.00 12 50 2.00 30.00 2.00 0.004 0.020 X X
2920L700/12 LF700-12 7. 0 0 14.00 12 50 2.00 35.00 2.00 0.003 0.018 X X
Description
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.
Agency Approvals
Features
Applications
• RoHS compliant, lead-free
and halogen-free
• Fast response to fault
currents
• High voltage
• Low-profile
• IEEE 1394 port protection
• Powered ethernet port
protection (IEEE 802.3 af)
• Automotive electronic
control module protection
• Low voltage telecom
equipment protection
2920L Series RoHS
Agency Agency File Number
E183209
R50119118
Additional Information
Datasheet Samples
Resources Samples