Surface Mount Fuses
PICO SMF Fuse > 459 Series
459 Series PICO Very Fast-Acting Surface Mount Fuse
Description
The 459 Series Very Fast-Acting SMF is based on Littelfuse
PICO fuse technology, though offered in a surface mount
package.
This series of devices meets the requirements of the
RoHS directive.
Features
DUJOHSF BTU Z' 7 t
8 SFOUSBUJOHSBOHFUP JEFDVS t
VSFSBOHF 8 JEFPQFSBUJOHUFNQFSBU t
Agency Approvals
VSFSFSBUJOH XUFNQFSBU P t-
AGENCY AGENCY FILE NUMBER
AMPERE RANGE
P)4DPNQMJBOU t3
E10480 62mA - 5A
Applications
LR29862 62mA - 5A
t 8 JSFMFTTCBTFTU BUJPO
t PSLFRVJQNFOU/FU X
Electrical Characteristics for Series
t FMFDPNFRVJQNFOU 5
% of Ampere
Opening Time
Rating
100% 4 hours, Minimum
200% 1 second, Maximum
300% 0.1 second, Maximum
Electrical Specifications by Item
Max
Agency Approvals
Ampere
Amp Voltage Interrupting Nominal Cold Nominal Melting
Rating
2 2
Code Rating Rating Resistance (Ohms) I t (A sec)
(A)
(V)
0.062 .062 125 7.0000 0.000075 x x
0.125 .125 125 1.7000 0.00163 x x
0.250 .250 125 0.6650 0.0106 x x
0.375 .375 125 0.3950 0.0254 x x
0.500 .500 125 0.2800 0.0546 x x
0.750 .750 125 0.1750 0.155 x x
50 A @125 VAC
1.00 001. 125 0.1250 0.281 x x
1.50 01.5 125 0.0800 0.650 x x
300 A @125 VDC
2.00 002. 125 0.0468 0.421 x x
2.50 02.5 125 0.0350 0.721 x x
3.00 003. 125 0.0290 1.23 x x
3.50 03.5 125 0.0240 1.65 x x
4.00 004. 125 0.0200 2.35 x x
5.00 005. 125 0.0155 3.90 x x
2009 Littelfuse, Inc.
459 Series
107
Specifications are subject to change without notice.
Revised: August 4, 2009
Please refer to www.littelfuse.com/series/459.html for current information.
459 Series Surface Mount Fuses
IntrIntroduction toduction too Cir Circuit Prcuit Prototectionection
Transientology
PICO SMF Fuse > 459 Series
Temperature Rerating Curve Average Time Current Curves
100
10
1
0.1
/PUF
1. Rerating depicted in this curve is in addition to the standard rerating of 25% for
0.01
continuous operation.
0.001
0.05 0.1 1 10 100
CURRENT IN AMPERES
Soldering Parameters
Wave Soldering 260C, 10 seconds max.
Reflow Soldering 260C, 30 seconds max.
2009 Littelfuse, Inc.
459 Series
108
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/459.html for current information.
TIME IN SECONDS
.062A
.125A
.25A
.375A
.500A
.750A
1A
1.5A
2A
2.5A
3A
3.5A
4A
5A