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© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 03/03/17
Surface Mount Fuses
NANO
2®
> 250V > Slo-Blo
®
Fuse > 443 Series
Materials
Body: Ceramic
Cap: Silver Plated Brass
Product Marking
Body: Brand Logo, Current Rating
Rated Voltage, and
T - Characteristic “T”
Insulation Resistance
(after Opening)
MIL-STD-202, Method 302,
Test Condition A (10,000 ohms,
Minimum)
Solderability MIL-STD-202, Method 208
Resistance to
Soldering Heat
MIL-STD-202, Method 210,
Test Condition B (10 sec at 260
o
C)
Moisture Sensitivity
Level
Level 1 J-STD-020
PCB
Recommendation
for Thermal
Management
Min. copper layer thickness = 100um
Min. copper trace width = 10mm
Alternate methods of thermal man-
agement may be used. In such cases,
under normal operations, the maximum
temperature of the fuse body should
not exceed 80
O
C in a 25
O
C ambient
environment.
Product Characteristics
5A
3.05
(.12")
3.05
(.12")
10.08
(.397")
3.25
(.128")
3.43
(.135")
12.6
(.496")
6.10
(.240")
Recommended Pad Layout
1.70 typ
(.067")
AC250V
T
Dimensions
Packaging
Part Numbering System
Packaging Option Packaging Specification Quantity
Quantity &
Packaging Code
24mm Tape and Reel
EIA-RS 481-2 (IEC 286, part 3)
1500 DR
Operating Temperature –55
O
C to 125
O
C
Thermal Shock
MIL-STD-202, Method 107,
Test Condition B (5 cycles -65
o
C
to +125
o
C)
Vibration
MIL-STD-202, Method 201
(10-55 Hz)
Moisture Resistance
MIL-STD-202, Method 106,
High Humidity (90-98%RH), Heat
(65
o
C)
Salt Spray
MIL-STD-202, Method 101,
Test Condition B
Mechanical Shock
MIL-STD-202, Method 213,
Test Condition I (100 G’s peak for
6 milliseconds)
0443 .500 D R
SERIES
AMP Code
QUANTITY Code
PACKAGING Code
Refer to Electrical
characteristics table
D = 1500 pcs
R = Tape and Reel
Example:
1.5 amp product is
0443 01.5 D R (0.5 amp
product shown above).
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.