Surface Mount Fuses
Subminiature Surface Mount
RoHS
NANO
2®
UMF
Fast-Acting Fuse 455 Series
• The Nano
2
UMF Fuse is a very small, square surface mount fuse design.
• Designed to International (IEC) Standards for use globally.
• Meets IEC 60127-4 UMF specifications for Fast-Acting Fuses
•
RoHS Compliant
version now available, use ordering suffix ‘L’
(see example on data sheet).
ELECTRICAL CHARACTERISTICS:
% of Ampere
Rating
125%
200%
1000%
Links (UMF), 125V.
Opening
Time
1 hour,
Minimum
2 minutes,
Maximum
0.001 sec,
Min;
.01 sec
Max
6.86
(.270")
3.15
(.124")
2.95
(.116")
1.45
(.057")
6.10
(.240")
AGENCY APPROVALS:
Listed to IEC 60127-4, Universal Modular Fuse-
AGENCY FILE NUMBERS:
UL E184655.
INTERRUPTING RATINGS:
50 amperes at 125 VAC/VDC
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).
F
1A
2.69
(.106")
2.69
(.106")
1.96
(.077")
Recommended pad layout
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).
Average Time Current Curves
1A
1.6A
10
100
CURRENT IN AMPERES
.4A
.5A
100
10
TIME IN SECONDS
1
0.1
0.01
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
Terminations: Tin-Lead Alloy
RoHS Compliant Terminations: Gold over Nickel Plated Caps
.
Soldering Parameters:
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.
Options: For RoHS Compliant devices add the letter ‘L’ to end of packag-
ing suffix. Example: 0455001.NRL (RoHS Compliant 1A, 5,000 per reel).
PATENTED
ORDERING INFORMATION:
Catalog
Number
0455.400
0455.500
0455
001.
0455
01.6
1
Ampere
Rating
0.4
0.5
1.0
1.6
Nominal
Voltage Cold Resistance
Rating
(Ohms)
1
125
0.420
125
0.305
125
0.078
125
0.0532
Nominal
Melting I
2
t
(A
2
sec)
0.0795
0.143
0.645
1.060
0.001
0.05 0.1
1
1000
Measured at 10% of rated current, 25°C.
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