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© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 03/03/17
Surface Mount Fuses
NANO
2®
Fuse > Very Fast-Acting > 448 Series
Materials
Body: Ceramic
Terminations: Gold-plated Caps
Product Marking Brand, Amperage Rating
Operating
Temperature
-55
o
C to 125
o
C
Moisture Sensitivity
Level
Level 1, J-STD-020
Solderability MIL-STD-202, Method 208
Insulation
Resistance (after
Opening)
MIL-STD-202, Method 302, Test Condition
A (10,000 ohms minimum)
Thermal Shock
MIL-STD-202, Method 107, Test
Condition B, 5 cycles, -65
o
C to
125
o
C, 15 minutes @ each extreme
Mechanical Shock
MIL-STD-202, Method 213, Test I:
Deenergized. 100G’s pk amplitude,
sawtooth wave 6ms duration, 3
cycles XYZ+xyz = 18 shocks
Vibration
MIL-STD-202, Method 201: 0.03”
amplitude, 10-55 Hz in 1 min. 2hrs
each XYZ=6hrs
Moisture Resistance MIL-STD-202, Method 106, 10 cycles
Salt Spray
MIL-STD-202, Method 101, Test
Condition B (48hrs)
Resistance to Soldering
Heat
MIL-STD-202, Method 210, Test
condition B (10 sec at 260
o
C)
Product Characteristics
F
7 A
6.86
(.270")
3.15
(.124")
2.95
(.116")
1.96
(.077")
2.69 ± .25
(.106")
2.69 ± .25
(.106")
1.45
(.057")
6.10 ± .20
(.240")
Recommended pad layout
Dimensions
Packaging
Part Numbering System
Packaging Option Packaging Specification Quantity
Quantity &
Packaging Code
12mm Tape and Reel EIA RS-481-1 (IEC 286, part 3) 1000 MR
0448 001. M R
SERIES
AMP Code
*
QUANTITY Code
PACKAGING Code
Refer to Electrical
Characteristics table
M = 1000 pcs
R = Tape and Reel
*Example:
1.5 amp product is 044801. 5 MR
(1 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.