Surface Mount Fuses
Ceramic Fuse > 441 Series
441 Series – 0603 High I2t 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.
Features
Agency Approvals
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AGENCY
AGENCY FILE NUMBER
AMPERE RANGE
2A - 6A
from -55ºC to 150ºC
and lead-free reflow /
wave soldering
E10480
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RoHS compliant
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Pending
2A - 6A
Electrical Characteristics
Applications
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% of Ampere
Ampere Rating
OpeningTime at 25ºC
Rating
100%
350%
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2A - 6A
2A - 6A
4 Hours Minimum
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5 Seconds Maximum
Electrical Specifications by Item
Agency Approvals
Ampere
Rating
(A)
Nominal
Nominal
Nominal Voltage
Drop At Rated
Current (V)4
Nominal Power
Amp Max.Voltage
Interrupting
Rating
Resistance Melting I2t
Dissipation At
Code
Rating (V)
(Ohms)2
(A2Sec.)3
Rated Current (W)
2
2.5
3
002.
02.5
003.
03.5
004.
005.
006.
32
32
32
32
32
32
32
0.0320
0.0200
0.0158
0.0117
0.0097
0.0073
0.0056
0.3103
0.5520
0.8165
0.9438
1.2659
1.6287
2.6049
0.0551
0.0534
0.0531
0.0468
0.0475
0.0472
0.0464
0.110
0.134
0.159
0.164
0.190
0.236
0.278
X
X
X
X
X
X
X
1
1
1
1
1
1
1
3.5
4
50 A @ 32 VDC
5
6
Notes:
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.
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.
Devices designed to be mounted with marking code facing up.
4. Nominal Voltage Drop measured at rated current after temperature has stabilized.
© 2009 Littelfuse, Inc.
441 Series
1
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/441.html for current information.
Revised: May 17, 2010