Surface Mount Fuses
Subminiature Surface Mount
RoHS
Pb
Lead-Free NANO
2®
Fuse
Very Fast-Acting 448 Series
®
®
The lead free Nano
2
SMF Fuse is a very small, square surface mount fuse
that is RoHS compliant and 100% Lead-Free. This product is fully compatible
with lead-free solder alloys and higher temperature profiles associated with
lead-free assembly.
ELECTRICAL CHARACTERISTICS:
% of Ampere
Rating
100%
200%
Ampere
Rating
1/16 –15
1/16 –10
12–15
Opening
Time
4 hours,
Minimum
5 seconds,
Maximum
20 seconds,
Maximum
6.86
(.270")
3.15
(.124")
2.95
1.96 (.116")
(.077")
Recommended pad layout
1.45
(.057")
6.10
(.240")
F
2.69
(.106")
2.69
(.106")
AGENCY APPROVALS:
Recognized under the Components Program of
Underwriters Laboratories and Certified by CSA. Approved by METI from 1
through 5 amperes.
AGENCY FILE NUMBERS:
UL E10480, CSA LR 29862.
INTERRUPTING RATINGS:
1/16 – 8A
10A
12A – 15A
50 amperes at 125 VAC/VDC
300 amperes at 32 VDC
35 amperes at 125 VAC/50 amperes at 125 VDC
300 amperes at 32 VDC
50 amperes at 65 VAC/VDC
300 amperes at 24 VDC
7A
ENVIRONMENTAL SPECIFICATIONS:
Operating Temperature:
–55°C to 125°C.
Shock:
MIL-STD-202, Method 213, Test Condition I
(100 G’s peak for 6 milliseconds).
Vibration:
MIL-STD-202, Method 201 (10–55 Hz).
Salt Spray:
MIL-STD-202, Method 101, Test Condition B.
Insulation Resistance (After Opening):
MIL-STD-202, Method
302, Test Condition A, (10,000 ohms minimum).
Resistance to Soldering Heat:
MIL-STD-202,
Method 210, Test Condition B (10 sec. at 260°C).
Thermal Shock:
MIL-STD-202, Method 107,
Test Condition B (–65 to 125°C).
Moisture Resistance:
MIL-STD-202, Method 106, High Humidity
(90-98 RH), Heat (65°C).
PHYSICAL SPECIFICATIONS:
Materials:
Body: Ceramic, blue ink used for device marking
Terminations: Gold over nickel plated brass caps
Soldering Parameters(see page 3 for typical soldering profile):
Wave Solder — 260°C, 10 seconds maximum
Reflow Solder — 260°C, 30 seconds maximum
Solderability:
MIL-STD-202, Method 208.
PACKAGING SPECIFICATIONS:
12mm Tape and Reel per
EIA-RS481-1 (IEC 286, part3); 1,000 pieces per reel, add packaging
suffix, MR; 5,000 per reel, add packaging suffix NR.
PATENTED
Average Time Current Curves
ORDERING INFORMATION:
Catalog #
0448.062
0448.080
0448.100
0448.125
0448.160
0448.200
0448.250
0448.315
0448.375
0448.400
0448.500
0448.630
0448.750
0448.800
0448
001.
0448
1.25
0448
01.5
0448
01.6
0448
002.
0448
02.5
0448
003.
0448
3.15
0448
03.5
0448
004.
0448
005.
0448
06.3
0448
007.
0448
008.
0448
010.
0448
012.
0448
015.
374
Ampere
Rating
0.062
0.080
0.100
0.125
0.160
0.200
0.250
0.315
0.375
0.400
0.500
0.630
0.750
0.800
1.0
1.25
1.5
1.6
2.0
2.5
3.0
3.15
3.5
4
5
6.3
7
8
10
12
15
Voltage
Rating
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
65
65
Nominal
Nominal
Resistance Melting I
2
t
Cold Ohms
A
2
Sec.
5.50
4.42
2.90
2.58
1.76
1.40
1.05
0.7900
0.7300
0.4895
0.3800
0.2821
0.2475
0.1907
0.08630
0.06619
0.06514
0.06261
0.03529
0.02934
0.02445
0.02300
0.02100
0.01577
0.01531
0.01044
0.00900
0.00780
0.00700
0.00533
0.00394
0.00023
0.00043
0.00082
0.00130
0.00280
0.00380
0.01520
0.0265
0.0240
0.0416
0.1000
0.121
0.206
0.272
0.441
0.900
0.900
1.122
0.812
1.156
1.720
1.810
2.300
3.970
4.490
12.10
13.92
18.33
28.00
47.59
96.10
100
TIME IN SECONDS
0.1
0.01
0.001
0.1
1
10
CURRENT IN AMPS
100
1000
w w w. l i t t e l f u s e . c o m
.062
.080
.100
.125A
.160
.200A
.250A
.315A
.375A
.400
.500A
.630
.750A
.800
1A
1.25A
1.5A
1.6A
2A
2.5A
3
3.15A
3.5A
4A
5A
6.3A
7A
8A
10A
12A
15A
10
1
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