®
POLY-FUSE Resettable PTCs
Surface Mount > 2920L Series
RoHS
2920L Series
Description
The 2920L Series PTC provides surface mount overcurrent
protection for medium voltage (≤60V) applications where
resettable protection is desired.
Features
• RoHS compliant, lead-free • High voltage
and halogen-free
• Low-profile
• Fast response to fault
currents
Agency Approvals
Applications
• IEEE 1394 port protection
• Powered ethernet port
protection (IEEE 802.3 af)
• Low voltage telecom
equipment protection
AGENCY
AGENCY FILE NUMBER
E183209
• Automotive electronic
control module protection
R50119118
Electrical Characteristics
MaximumTime
ToTrip
Agency
Approvals
Resistance
I hold
(A)
I trip
(A)
V max
(Vdc)
I max
(A)
P d typ.
(W)
Part Number
Marking
R min
(Ω)
R 1max
(Ω)
Current
(A)
Time
(Sec.)
2920L030
2920L050
LF030
LF050
0.30
0.50
0.75
0.75
1.10
1.10
1.25
1.50
1.85
2.00
2.00
2.50
2.60
2.60
3.00
3.00
3.3
0.60
1.00
60
60
30
60
33
60
15
33
33
15
24
15
6
10
10
40
10
40
20
40
40
40
40
40
40
40
40
40
40
40
40
40
50
50
1.50
1.50
1.50
1.50
1.50
2.00
1.50
1.50
1.50
1.50
1.50
1.50
1.50
1.50
1.50
1.50
2.0
1.50
2.50
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
20.00
20.00
30.00
35.00
3.00
4.00
0.30
0.30
0.50
0.50
2.00
2.00
2.50
5.00
5.00
10.00
10.00
10.00
20.00
20.00
5.00
4.00
5.00
2.00
2.00
1.200
0.350
0.350
0.300
0.120
0.120
0.070
0.080
0.050
0.050
0.050
0.035
0.025
0.025
0.015
0.015
0.015
0.010
0.005
0.004
0.003
4.800
1.400
1.000
0.950
0.410
0.410
0.250
0.230
0.150
0.125
0.125
0.085
0.075
0.075
0.048
0.048
0.055
0.040
0.025
0.020
0.018
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
2920L075
LF075
1.50
2920L075/60
2920L100
LF075-60
LF100
1.50
2.20
2.20
2.50
3.00
3.70
4.00
4.00
5.00
5.00
5.00
5.00
5.00
5.50
8.00
10.00
12.00
14.00
2920L110/60
2920L125
LF110
LF125
2920L150
LF150
2920L185
LF185
2920L200
LF200
2920L200/24
2920L250
LF200-24
LF250
2920L260
LF260
2920L260/24
2920L300
LF260-24
LF300
24
6
2920L300/15
2920L330/24
2920L400/15
2920L500/16
2920L600/12
2920L700/12
LF300-15
LF330
15
24
15
16
12
12
LF400
4.00
5.00
6.00
7. 0 0
1.50
2.0
LF500-16
LF600
2.00
2.00
LF700-12
I hold = Hold current: maximum current device will pass without tripping in 20°C still air.
trip =Trip current: minimum current at which the device will trip in 20°C still air.
max = Maximum voltage device can withstand without damage at rated current (I max)
max = Maximum fault current device can withstand without damage at rated voltage (Vmax
I
V
I
)
P
R
R
R
d = Power dissipated from device when in the tripped state at 20°C still air.
min = Minimum resistance of device in initial (un-soldered) state.
typ =Typical resistance of device in initial (un-soldered) state.
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.
© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 03/22/17