Surface Mount Fuses
NANO
2®
> 463 Series
463 Series
Description
RoHS
The 463 series NANO²® fuse is a fast-acting, very high
current fuse designed for high operating current applications.
It offers superior thermal cycling endurance of 500 cycles
with its low temperature rise and excellent temperature
stability characteristics, it is ideal to be used in datacom and
telecom equipment such as high end server, base station,
power supplies, and blade computing applications.
The 463 series offers high-amp circuit protection, ultra-high
interrupting ratings (up to 500A@ 72VDC) and small size
(10.1 mm x 3.12 mm x 3.12 mm) and surface-mount form-
factor to help space saving.
Agency Approvals
Agency
Agency File Number
Ampere Range
Features
• Surface mount fuse in a
small footprint
• High current rating
15A-30A
• Higher voltage rating up
to 100VDC and 250VAC
Applications
• High end servers / Blade
computing
• Base station power
supply
• Voltage regulator module
• Cooling fan system for
PC Server
• Advance
Telecommunication
Computing Architecture
(ATCA) applications for
cloud computing
• Battery Management
System (Industrial Tools)
• High melting i2t
• Enhanced thermal cycling
endurance
• Operating temperature
range from -55°C to
125°C
E10480
15A - 30A
Electrical Characteristics for Series
% of Ampere
Rating
100%
200%
Opening Time
4 Hours,
Min.
60 Second,
Max.
Electrical Characteristic Specifications by Item
Ampere
Rating (A)
Max
Voltage
Rating (V)
Interrupting
Rating
100A@250VAC
300A@65VAC
500A @ 72VDC
50A@100VDC
1000A @ 32VDC
800A @ 57VDC
1400A @ 48VDC
2500A @ 12VDC
100A @ 250VAC
300A @ 65 VAC
500A @ 72VDC
50A@100VDC
1000A @ 32VDC
800A @ 57VDC
1400A @ 48VDC
2500A @ 12VDC
Nominal Cold
Resistance (Ohms)
Nominal Melting
I
2
t (A
2
sec)
Agency
Approvals
Ampere Code
15
015.
250
0.0047
142
x
20
020.
250
0.0027
433
x
25
025.
250
0.00215
668
x
30
Notes:
030.
250
0.00193
916
x
1. Cold resistance measured at less than 10% of rated current at 23°C.
2. Agency Approval Table Key: X=Approved or Certified, P=Pending and Blank=Not Approved.
3. I2t values stated for 10 msec opening time.
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 04/02/15
Surface Mount Fuses
NANO
2®
> 463 Series
Product Characteristics
Materials
Product Marking
Insulation Resistance
(after Opening)
Solderability
Resistance to Soldering
Heat
Body : Ceramic
Cap : Silver Plated Brass
Body: Brand Logo, Current Rating
MIL
-STD-202, Method 302,
Test Condition A (10,000 ohms,
Minimum)
MIL
-STD-202, Method 208
MIL
-STD-202, Method 210,
Test Condition B (10 sec at 260°C)
Min. copper layer thickness = 100µm
Minimum copper trace width =
10mm
PCB Recommendation
for Thermal
Management
Alternate methods of thermal
management may be used. In such
cases, under normal operations, the
maximum temperature of the fuse
body should not exceed 80°C in a
25°C environment.
–55ºC to 125ºC with proper derating
Vibration
Moisture Resistance
Salt Spray
Mechanical Shock
Thermal Shock
MIL
-STD-202, Method 107 Test Condition
,
B, 5 cycles, -65°C to 125°C, 15 minutes
@ each extreme
MIL
-STD-202, Method 213B, Test
Condition I: De-energized. 100G’s peak
amplitude, sawtooth wave 6ms duration,
3 cycles XYZ+xyz = 18
MIL
-STD-202, Method 201: 0.03” ampli-
tude, 10-55 Hz in 1 min. 2 hrs. each XYZ
= 6hrs (10- 55 Hz)
MIL
-STD-202F Method 106, 10 cycles
,
MIL
-STD-202, Method 101, Test Condition
B (48hrs)
500 cycles: 15 minutes at –30°C (+0/-
5°C), 5°C / minute ramp rate up to 80°C,
15 minutes at 80°C (+3/-0°C), 5°C / min-
ute ramp rate back down to –30°C.
Thermal Cycling
Operating Temperature
463 Series
10.10mm
(.397")
3.12mm
(.123")
Dimensions
Part Numbering System
0463 030. E R
3.12mm
(.123")
30A
1.70mm
(.067")
F
Series
Amp Code*
Refer to Amp Code column of
Electrical Characteristics Table
Recommended Pad Layout
3.25mm
(.128")
6.1mm
(.24")
12.60mm
(.496")
3.43mm
(.135")
Quantity Code
E = 2,500 pieces
Packaging Code
R = Tape and Reel
*Example:
30 Amp is 0463030.ER
Packaging
Packaging Option
463 Series
24mm Tape and Reel
EIA-RS-481-2
2500
ER
Packaging Specification
Quantity
Quantity & Packaging Code
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 04/02/15
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