Littelfuse 468 Series - Manual

© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/19/13
Surface Mount Fuses
Thin Film > 1206 Size > Slo-Blo
®
> 468 Series
468 Series Fuse
Description
Agency Approvals
AgeNCy AgeNCy FIle NumbeR AmpeRe RANge
e10480 500mA - 3A
lR29862 500mA - 3A
Electrical Characteristics for Series
Features
• Complies with
electronic industry
environmental standards
for lead reduction.
• Product is compatible
with lead-free solders
and higher temperature
profiles.
• Time delay feature
withstands high inrush
currents and prevents
nuisance openings.
• Package is visually
distinct from fast-
acting version for easy
identification.
• Top side marking allows
visual verification of
amperage rating.
% of Ampere
Rating
Opening Time at 25 O C
100% 4 hours, Minimum
200% 1 sec., Min.; 120 sec., Max.
300% 0.05 sec., Min.; 1.5 sec., Max
800% 0.0015 sec., Min.; .05 sec., Max.
Applications
Ampere
Rating
(A)
Amp
Code
max
Voltage
Rating
(V)
Interrupting
Rating
Nominal Cold
Resistance
(Ohms)
Nominal
melting
I 2 t (A 2 sec)
Nom
Voltage
Drop
(mV)
Nom
power
Dissipation
(W)
Agency
Approvals
0.50 .500 63
50 amperes @63
VAC/VDC
0.27000 0.0310 156.77 0.0784 x x
1.00 001. 63 0.08250 0.1270 94.70 0.0947 x x
1.50 01.5 63 0.04750 0.2880 82.32 0.1235 x x
2.00 002. 63 35 amperes @63 VAC
50 amperes @63
VDC
0.03240 0.5060 77.27 0.1545 x x
2.50 02.5 63 0.02240 1.0110 73.92 0.1848 x x
3.00 003. 32 50 amperes @32
VAC/VDC
0.01950 1.2700 72.95 0.2189 x x
Electrical Specifications by Item
1. Measured at 10% of rated current, 25˚C.
2. Measured at rated voltage.
The 468 Series Time-Lag (Slo-Blo ® ) 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 468 Series
fuses are available–to order use the “HF” suffix. See Part
Numbering section for additional information.
• Cell phones
• Battery packs
• Digital cameras • DVD players
• Hard disk drives.
Secondary protection for space constrained applications:
Additional Information
Datasheet Samples Resources