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© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 03/03/17
Surface Mount Fuses
PICO
®
SMF Fuse > 459 Series
Materials
Body: Molded Thermoplastic
Terminations: 100% Tin-plated Copper
Solderability MIL-STD-202, Method 208
Product Marking
Body: Brand Logo, Current Rating,
Voltage Rating, Series Code, Date
Code, Agency Approved Logo
Moisture Sensitivity Level 1 J-STD - 020
Operating Temp. –55
O
C to 125
O
C (Consider re-rating)
Shock
MIL-STD-202, Method 213, Test
Condition I (100 G’s peak for 6 msecs.)
Vibration
MIL-STD-202, Method 201
(10–55 Hz, 0.06 inch total excursion)
Salt Spray
MIL-STD-202, Method 101,
Test Condition B (48 hours)
Insulation Resistance
(After Opening)
MIL-STD-202, Method 302,
(10,000 ohms minimum at 100 volts)
Thermal Shock
MIL-STD-202, Method 107,
Test Condition B (–65 to 125°C)
Moisture Resistance
MIL-STD-202, Method 106, High
Humidity (90-98 RH), Heat (65°C)
Product Characteristics
4.32
(.170")
5 A 1 2 5 V
L
F
4 5 9
B 3
®
®
3.05
(.120")
2.97
(.117")
7.24(.285")
REF.
8.26
(.325")
1.65
(.065")
4.95
(.195")
1.30(.051")
REF.
2.03
(.080")
RECOMMENDED
PAD LAYOUT
Dimensions
Part Numbering System
0459 .500 UR
SERIES
AMP Code
QUANTITY Code
PACKAGING Code
Refer to Electrical
Characteristics table
UR = 500 pcs
ER = 2500 pcs
R = Tape and Reel
Example:
0.62 Amp product is
0459 .062 UR (.5 Amp
product shown above).
Average Time Current Curves
100
10
1
0.1
0.01
0.001
.062A
0.05 0.1 110 100
.125A .25A .375A .500A .750A 1A 1.5A 2A 2.5A 3A 3.5A 4A 5A
TIME IN SECONDS
CURRENT IN AMPERES
Soldering Parameters
Temperature Re-rating Curve
Note:
1. Re-rating depicted in this curve is in addition to the standard derating of 25% for
continuous operation.
Wave Soldering 260°C, 10 seconds max.
Reflow Soldering 260°C, 30 seconds max.
Packaging
Packaging Option Packaging Specification Quantity Quantity & Packaging Code
12mm
Tape and Reel
EIA RS-481-1
(IEC 286, part 3)
500 UR
2500 ER
Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and
test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications.
Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics.