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© 2009 Littelfuse, Inc.
Specications are subject to change without notice.
Surface Mount Fuses
Thin Film > 1206 Size > Very Fast-Acting > 466 Series
466 Series
466 Series
Please refer to www.littelfuse.com/series/466.html for current information.
466 Series Fuse
Description
The 466 Series Fast-Acting Surface Mount Fuse (SMF)
is a small (1206 size) thin-lm 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” sufx. See Part
Numbering section for additional information.
Agency Approvals
AGENCY AGENCY FILE NUMBER AMPERE RANGE
E10480 125mA - 5A
LR29862 125mA - 5A
Features
Electrical Characteristics for Series
• Productiscompatible
with lead-free solders
and higher temperature
proles
• Productismarkedon
top surface with code to
allow amperage rating
identication without
testing
• Lowproleforheight
sensitive applications
• Flattopsurfaceforpick-
and-place operations
• Element-coveringmaterial
is resistant to industry
standard cleaning
operations
• Mountingpadand
electrical performance are
identicaltoLittelfuse429
and 433 Series products
• Alloy-basedelement
construction provides
superior inrush withstand
characteristics (I2t) over
ceramic or glass-based
1206 chip fuse products
% of Ampere
Rating Opening Time at 25OC
100% 4 hours, Minimum
200% 5 sec., Maximum
300% 0.2 sec., Maximum Applications
Ampere
Rating
(A)
Amp
Code
Max
Voltage Rating
(V)
Interrupting
Rating
Nominal Cold
Resistance
(Ohms)
Nominal
Melting
I2t (A2sec)
Nom
Voltage Drop
(mV)
Nom Power
Dissipation
(W)
Agency Approvals
0.125 .125 125
50A @125 V AC/
DC
4.000 0.00040 552.66 0.0691 x x
0.200 .200 125 1.160 0.00055 254.28 0.0509 x x
0.250 .250 125 0.710 0.0010 207.01 0.0518 x x
0.375 .375 125 0.350 0.0028 169.18 0.0634 x x
0.500 .500 63
50A @63 V AC/DC
0.248 0.0060 158.47 0.0792 x x
0.750 .750 63 0.111 0.0276 98.65 0.0740 x x
1.00 0 01. 63 0.076 0.0423 89.94 0.0899 x x
1.25 1.25 63 0.059 0.0640 85.71 0.1071 x x
1.50 01.5 63 0.048 0.1103 82.97 0.1244 x x
1.75 1.75 63 0.039 0.1323 80.73 0.1413 x x
2.00 002. 63 0.031 0.2326 78.73 0.1575 x x
2.50 02.5 32
50A @32 V AC/DC
0.024 0.3516 76.99 0.1925 x x
3.00 003. 32 0.020 0.5760 75.99 0.2280 x x
4.00 004. 32 0.014 1.024 74.50 0.2980 x x
5.00 005. 32 0.011 1.600 73.75 0.3688 x x
Electrical Specications by Item
1. Measured at 10% of rated current, 25ºC.
2. Measured at rated voltage.
• Cellphones
• Batterypacks
• Digitalcameras
• DVDplayers
• Harddiskdrives
Secondary protection for space constrained applications:
Revised: Jun 16, 2011