POLYFUSE
®
Resettable PTCs
Surface Mount > Lo Rho Series
Lo Rho Surface Mount Series
Description
The Littelfuse Lo Rho Surface Mount PPTC (polymer
positive temperature coefficient) series offers ultra low
normal operating resistance while maintains the same
performance of existing Littelfuse PPTC products.
Available in 5 hold current ratings, all devices are TUV
and UL certified and possess a maximum fault current
rating of 40A.
Features
at normal operating hold
current)
board space
Agency Approvals
AGENCY
AGENCY FILE NUMBER
E183209
R50119118
temperature solders
currents
Applications
protection
for motherboards and
peripherals
Electrical Characteristics
Maximum Time
To Trip
Current
(A)
8.00
8.00
8.00
8.00
9.50
Time
(Sec.)
0.30
0.30
0.30
3.00
2.00
4.50
Resistance
R
min
(Ω)
0.030
0.015
0.010
0.005
0.003
0.003
R
1max
(Ω)
0.130
0.100
0.065
0.024
0.018
0.025
X
X
X
X
X
X
X
X
X
X
X
X
Part Number
Marking
I
hold
(A)
1.10
1.10
1.50
2.00
3.50
I
trip
(A)
1.80
2.20
3.00
4.00
4.90
V
max
(Vdc)
6
6
6
6
6
6
I
max
(A)
50
50
50
50
50
50
P
d
max.
(W)
0.6
0.8
0.8
0.8
0.8
1.0
Agency
Approvals
0805L110SLYR
1206L110SLYR
1206L150SLYR
1210L200SLYR
1812L190SLPR
I
hold
I
trip
LF 19
1.90
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
d
R
min
R
1max
Caution:
©2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/LoRho.html for current information.
Revised: October 7, 2009
Lo Rho Series
Lo Rho Series
LITTELFUSE [ LITTELFUSE ]
