Datasheet

© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/22/19
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 044801.5MR (1 amp
product shown above).
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products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics.