Littelfuse 441 Series - Manual

© 2014 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 03/04/14
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 Ampere rAnge
e10480 2A - 6A
lr29862 2A - 6A
Features
Electrical Characteristics
• Operating Temperature
from -55ºC to 150ºC
• 100% Lead-free and
RoHS compliant
• Suitable for both leaded
and lead-free reflow /
wave soldering
• Ultra high I²t values
% of Ampere
rating
Ampere rating Opening Time at 25ºc
100% 2A - 6A 4 Hours Minimum
350% 2A - 6A 5 Seconds Maximum
Applications
Electrical Specifications by Item
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.
• Handheld Electronics
• LCD Displays
• Battery Packs • Hard Disk Drives
• SD Memory Cards
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.
Ampere
rating
(A)
Amp
code
max. Voltage
rating (V)
interrupting
rating
nominal
resistance
(Ohms) 2
nominal
melting i 2 t
(A 2 Sec.) 3
nominal Voltage
Drop At rated
current (V) 4
nominal power
Dissipation At
rated current (W)
Agency Approvals
2 002. 32
50 A @ 32 VDC
0.0302 0.3103 0.0551 0.110 X X
2.5 02.5 32 0.0200 0.5520 0.0534 0.134 X X
3 003. 32 0.0158 0.8165 0.0531 0.159 X X
3.5 03.5 32 0.0117 0.9438 0.0468 0.164 X X
4 004. 32 0.0097 1.2659 0.0475 0.190 X X
5 005. 32 0.0073 1.6287 0.0472 0.236 X X
6 006. 32 0.0056 2.6049 0.0464 0.278 X X
Additional Information
Datasheet Samples Resources