Littelfuse 443 Series - Manual (Page 3)

© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/19/13
Surface Mount Fuses
NANO 2® > 250V > Time Lag > 443 Series
Materials
Body: Ceramic
Cap: Silver Plated Brass
Product Marking
Body: Brand Logo, Current Rating
Rated Voltage, T - C
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-020C
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
3.12
(.123")
3.12
(.123")
10.10
(.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 with proper derating
Thermal Shock
MIL-STD-202F, Method 107G,
Test Condition B (5 cycles -65 o C
to +125 o C)
Vibration
MIL-STD-202F, Method 201A
(10-55 Hz)
Moisture Resistance
MIL-STD-202, Method 106,
High Humidity (90-98%RH), Heat
(65 o C)
Salt Spray
MIL-STD-202F, 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).