Surface Mount Fuses
Ceramic Fuse > 441 Series
441 Series – 0603 High I
2
t Fuse
Description
This 100% Lead-free, RoHS compliant and Halogen-free
fuse series has been designed specifically to provide over
current protection to circuits that see high working ambient
temperatures (up to 150ºC) and high inrush currents.
The general design ensures excellent temperature stability
and performance reliability.
This high I²t fuse series is designed to have ultra high inrush
current withstand capability to avoid nuisance fuse open.
Agency Approvals
AGENCY
AGENCY FILE NUMBER
E10480
LR29862
AMPERE RANGE
2A - 6A
2A - 6A
Features
from -55ºC to 150ºC
RoHS compliant
and lead-free reflow /
wave soldering
Electrical Characteristics
% of Ampere
Rating
100%
350%
Ampere Rating
2A - 6A
2A - 6A
Opening Time at 25ºC
4 Hours Minimum
5 Seconds Maximum
Applications
Electrical Specifications by Item
Ampere
Rating
(A)
2
2.5
3
3.5
4
5
6
Notes:
1. DC Interrupting Rating tested at rated voltage with time constant < 0.8 msecs.
2. Nominal Resistance measured with < 10% rated current.
3. Nominal Melting I²t measured at 1 msec. opening time.
4. Nominal Voltage Drop measured at rated current after temperature has stabilized.
Devices designed to carry out rated current for 4 hours minimum. It is recommended that
devices be operated continuously at no more than 80% rated current. See “Temperature
Rerating Curve”for additional rerating information.
Devices designed to be mounted with marking code facing up.
Amp Max. Voltage
Code
Rating (V)
002.
02.5
003.
03.5
004.
005.
006.
32
32
32
32
32
32
32
Interrupting
Rating
Nominal
Nominal
Resistance Melting I
2
t
(A
2
Sec.)
3
(Ohms)
2
0.0302
0.0200
0.0158
0.3103
0.5520
0.8165
0.9438
1.2659
1.6287
2.6049
Nominal Voltage
Drop At Rated
Current (V)
4
0.0551
0.0534
0.0531
0.0468
0.0475
0.0472
0.0464
Nominal Power Agency Approvals
Dissipation At
Rated Current (W)
0.110
0.134
0.159
0.164
0.190
0.236
0.278
X
X
X
X
X
X
X
X
X
X
X
X
X
X
50 A @ 32 VDC
0.0117
0.0097
0.0073
0.0056
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/441.html for current information.
1
Revised: June 15, 2010
441 Series
441 Series
LITTELFUSE [ LITTELFUSE ]
