Fuses Datasheet
441 Series
0603 High I2t Fuse
RoHS Pb
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 fuse 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 & Benefits
■ OperatingTemperature from
-55ºC to 150ºC
■ Suitable for both leaded
and lead-free reflow / wave
soldering
■ 100% Lead-free, Halogen-Free
and RoHS compliant
■ Ultra high I²t values
Additional Information
Applications
■ Handheld Electronics
■ LCD Displays
■ Hard Disk Drives
■ SD Memory Cards
■ Battery Packs
Resources
Accessories
Samples
Agency Approvals
Electrical Characteristics
Agency
Agency File Number
Ampere Range
% of Ampere Rating
Ampere Rating
OpeningTime at 25ºC
E10480
29862
2A - 6A
2A - 6A
100%
350%
2A - 6A
2A - 6A
4 Hours Minimum
5 Seconds Maximum
Electrical Specifications
Agency Approvals
Ampere
Rating
(A)
Nominal
Nominal
NominalVoltage
Drop At Rated
Current (V)3
Nominal Power
Dissipation At Rated
Current (W)
Amp
Code
Max.Voltage
Rating (V)
Interrupting Rating Resistance
Melting I2t
(A2Sec.)2
(Ohms)1
2
2.5
3
002.
02.5
003.
03.5
004.
005.
006.
32
32
32
32
32
32
32
0.0302
0.0200
0.0158
0.3103
0.640
1.100
1.270
1.710
2.880
4.390
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
X
X
X
X
X
X
X
3.5
4
50 A @ 32 VDC
0.0117
0.0097
0.0073
0.0056
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 Re-rating Curve”for additional re-rating
information.
1. Nominal Resistance measured with < 10% rated current.
2. Nominal Melting I²t measured at 1 msec. opening time.
3. Nominal Voltage Drop measured at rated current after temperature has stabilized.
Devices designed to be mounted with marking code facing up.
© 2023 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: GD. 03/27/23
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