Surface Mount Fuses
Thin Film > 1206 Size > Very Fast-Acting > 466 Series
466 Series Fuse
Description
The 466 Series Fast-Acting Surface Mount Fuse (SMF)
is a small (1206 size) thin-film device designed for
secondary protection of circuits used in space constrained
applications such as hand-held portable electronic devices.
This series is 100% lead-free and meets the requirements
of the RoHS directive. New Halogen-Free 466 Series
fuses are available to order using the “HF” suffix. See Part
Numbering section for additional information.
Features
Agency Approvals
Agency
Agency File number
e10480
lr29862
Ampere rAnge
125mA - 5A
125mA - 5A
• Product is compatible
with lead-free solders
and higher temperature
profiles
• Product is marked on
top surface with code to
allow amperage rating
identification without
testing
• Low profile for height
sensitive applications
• Flat top surface for pick-
and-place operations
• Element-covering material
is resistant to industry
standard cleaning
operations
• Mounting pad and
electrical performance are
identical to Littelfuse 429
and 433 Series products
• Alloy-based element
construction provides
superior inrush withstand
characteristics (I
2
t) over
ceramic or glass-based
1206 chip fuse products
Electrical Characteristics for Series
% of Ampere
rating
100%
200%
300%
Opening Time at 25
O
c
4 hours, Minimum
5 sec., Maximum
0.2 sec., Maximum
Applications
Secondary protection for space constrained applications:
• Cell phones
• Battery packs
• Digital cameras
• DVD players
• Hard disk drives
Electrical Specifications by Item
Ampere
rating
(A)
0.125
0.200
0.250
0.375
0.500
0.750
1.00
1.25
1.50
1.75
2.00
2.50
3.00
4.00
5.00
Amp
code
.125
.200
.250
.375
.500
.750
001.
1.25
01.5
1.75
002.
02.5
003.
004.
005.
max
nominal cold
interrupting
Voltage rating
resistance
rating
(V)
(Ohms)
125
4.000
125
1.160
50A @125 V AC/
DC
125
0.710
125
0.350
63
0.248
63
0.111
63
0.076
50A @63 V AC/DC
63
0.059
63
0.048
63
0.039
63
0.031
32
0.024
32
0.020
50A @32 V AC/DC
32
0.014
32
0.011
nominal
melting
i
2
t (A
2
sec)
0.00040
0.00055
0.0010
0.0028
0.0060
0.0276
0.0423
0.0640
0.1103
0.1323
0.2326
0.3516
0.5760
1.024
1.600
nom
nom power Agency Approvals
Voltage Drop Dissipation
(mV)
(W)
552.66
0.0691
x
x
254.28
0.0509
x
x
207
.01
0.0518
x
x
169.18
0.0634
x
x
158.47
0.0792
x
x
98.65
0.0740
x
x
89.94
0.0899
x
x
85.71
0.1071
x
x
82.97
0.1244
x
x
80.73
0.1413
x
x
78.73
0.1575
x
x
76.99
0.1925
x
x
75.99
0.2280
x
x
74.50
0.2980
x
x
73.75
0.3688
x
x
1. Measured at 10% of rated current, 25ºC.
2. Measured at rated voltage.
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/466.html for current information.
29
Revised: Jun 16, 2011
466 Series
466 Series
LITTELFUSE [ LITTELFUSE ]
