Littelfuse 446 Series User Manual
Surface mount fuses
© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/19/13
Surface Mount Fuses
EBF Fuse Fast-Acting > 446/447 Series
446/447 Series Fuse
Description
Agency Approvals
Features
• RoHS compliant and
100% lead-free
• Ideal for use in electronic
lighting ballast, power
supply and power
inverter applications.
• Rated for use in 125,
250, 277 and 350 VAC
circuits.
• Based on the proven
reliability of the
automotive MINI
®
Fuse;
available from 2 through
10 amperes.
AgeNCy
AgeNCy FIle
NumbeR
AmpeRe RANge
e71611
2A - 10A
lR29862
2A - 10A
Electrical Characteristics for Series
% of Ampere
Rating
Opening Time
100%
4 hours, Minimum
200%
0.15 sec. Min.; 5 sec. Max.
The 446/447 series are circuit-board mountable, flat profile,
fast-acting fuses designed for protection of electronic
ballasts and power inverter applications. The 446 series is
designed with leads for surface mount applications, and
the 447 series is designed with leads for through-hole
applications.
This series of devices are 100% lead-free and meets the
requirements of the RoHS directive.
Electrical Specifications by Item
Ampere
Rating
(A)
Amp Code
max
Voltage
Rating
(V)
Interrupting
Rating
Nominal Cold
Resistance
(Ohms)
Nominal melting
I
2
t (A
2
sec)
Agency Approvals
2.00
002.
350
100 amperes @350
VAC, 50 amperes
@125 VDC and 450
amperes @60VDC
0.0560
2.8
x
x
3.00
003.
350
0.0340
9.4
x
x
4.00
004.
350
0.0240
17
x
x
5.00
005.
350
0.0180
25
x
x
7.50
07.5
350
0.0110
68
x
x
10.0
010.
350
0.0073
93
x
x
446 Series
(surface mount leads)
447 Series
(thru-hole leads)
Additional Information
446 Series
447 Series
446 Series
447 Series
446 Series
447 Series