© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
1. Measured at 10% of rated current, 25ºC.
2. Measured at rated voltage.
Please refer to www.littelfuse.com/series/466.html for current information.
Agency Approvals
Electrical Characteristics for Series
Electrical Specifications by Item
AGENCY
Ampere
% of Ampere
Rating
0.125
0.200
0.250
0.375
0.500
0.750
2.00
3.00
4.00
5.00
1.00
1.25
1.50
1.75
2.50
(A)
Rating
100%
200%
300%
466 Series Fuse
AGENCY FILE NUMBER
Code
Amp
.125
.200
.250
.375
.500
.750
002.
02.5
003.
004.
005.
001.
1.25
1.75
01.5
Voltage Rating
LR29862
E10480
Max
125
125
125
125
(V)
63
63
63
63
63
63
63
32
32
32
32
Opening Time at 25
0.2 sec., Maximum
4 hours, Minimum
5 sec., Maximum
50A @63 V AC/DC
50A @32 V AC/DC
50A @125 V AC/
Interrupting
Rating
AMPERE RANGE
Surface Mount Fuses
Thin Film > 1206 Size > Very Fast-Acting > 466 Series
DC
125mA - 5A
125mA - 5A
O
C
Nominal Cold
Resistance
Revised: July 7, 2009
(Ohms)
4.000
0.350
0.248
0.048
0.031
0.024
0.020
0.710
0.076
0.014
0.011
1.160
0.111
29
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
Applications
Secondary protection for space constrained applications:
with lead-free solders
and higher temperature
profiles
top surface with code to
allow amperage rating
identification without
testing
sensitive applications
and-place operations
I
Nominal
2
Melting
0.00040
0.00055
t (A
0.0028
0.0060
0.0423
0.0640
0.2326
0.0010
0.0276
0.1323
0.3516
0.5760
0.1103
1.024
1.600
2
sec)
Voltage Drop
552.66
254.28
158.47
207 .01
85.71
80.73
78.73
73.75
Nom
74.50
(mV)
Nom Power
Dissipation
0.0634
0.2280
0.3688
0.0518
0.0740
0.1071
0.1244
0.1413
0.1575
(W)
is resistant to industry
standard cleaning
operations
electrical performance are
and 433 Series products
construction provides
superior inrush withstand
characteristics (I
ceramic or glass-based
1206 chip fuse products
Agency Approvals
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
2
t) over
466 Series
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x