Littelfuse 448 Series - Manual (Page 4)

© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/19/13
Surface Mount Fuses
NANO 2® > 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-020C
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).