2920L185DR Datasheet, PDF (1/6 Pages) Littelfuse – POLY-FUSE® Resettable PTCs Surface Mount > 2920L Series

POLY-FUSE^® Resettable PTCs
Surface Mount > 2920L Series
2920L Series
Agency Approvals
AGENCY AGENCY FILE NUMBER
E183209
R50119118
Description
The 2920L Series PTC provides surface mount overcurrent
protection for medium voltage (≤60V) applications where
resettable protection is desired.
Features
t

3P)4
DPNQMJBOU
MFBEGSFF

and halogen-free
t

'BTU
SFTQPOTF
UP
GBVMU

currents
t

)JHI
WPMUBHF
t

-PXQSPmMF
Applications
t

*&&
QPSU
QSPUFDUJPO
t

1PXFSFE
FUIFSOFU
QPSU

QSPUFDUJPO
*&&&

BG

t

"VUPNPUJWF
FMFDUSPOJD

control module protection
t

-PX
WPMUBHF
UFMFDPN

equipment protection
Electrical Characteristics
Part Number
Marking
I _hold
(A)
I _trip
V _max
I _max
(A) (Vdc) (A)
Maximum Time
P_d
To Trip
typ.
(W) ^{Current Time}
(A)
(Sec.)
2920L030
LF030 0.30 0.60 60
2920L050
LF050 0.50 1.00 60
2920L075
LF075 0.75 1.50 30
2920L075/60 LF075-60 0.75 1.50 60
2920L100
LF100 1.10 2.20 33
2920L125
LF125 1.25 2.50 15
2920L150
LF150 1.50 3.00 33
2920L185
LF185 1.85 3.70 33
2920L200
LF200 2.00 4.00 15
2920L200/24 LF200-24 2.00 4.00 24
2920L250
LF250 2.50 5.00 15
2920L260
LF260 2.60 5.00 6
2920L300
LF300 3.00 5.00 6
2920L300/15 LF300-15 3.00 5.00 15
10 1.50 1.50
10 1.50 2.50
40 1.50 8.00
10 1.50 8.00
40 1.50 8.00
40 1.50 8.00
40 1.50 8.00
40 1.50 8.00
40 1.50 8.00
40 1.50 8.00
40 1.50 8.00
40 1.50 8.00
40 1.50 8.00
40 1.50 8.00
3.00
4.00
0.30
0.30
0.50
2.00
2.00
2.50
5.00
5.00
10.00
10.00
20.00
20.00
I = Hold current: maximum current device will pass without tripping in 20°C still air.
hold
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 (V_max)
P = Power dissipated from device when in the tripped state at 20°C still air.
d
R = Minimum resistance of device in initial (un-soldered) state.
min
R = Typical resistance of device in initial (un-soldered) state.
typ
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.
Resistance
R
min
(Ω)
1.200
0.350
0.350
0.300
0.120
0.070
0.080
0.050
0.050
0.050
0.035
0.025
0.015
0.015
R
typ
(Ω)
3.000
0.870
0.670
0.60
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
0.950
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
X
X
© 2012 Littelfuse, Inc
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/2920L.html for current information.
51
Revised: June 3, 2012
2920L Series