Datasheet

67
© 2009 Littelfuse, Inc.
Specications are subject to change without notice.
Surface Mount Fuses
456 Series
NANO
2®
> 456 Series
Please refer to www.littelfuse.com/series/456.html for current information.
456 Series
Operating Temperature -55
O
C to 125
O
Cwithproperderating
Thermal Shock
MIL-STD-202F,Method107G,
TestConditionB
(5cycles-65
O
C to 125
O
C)
Vibration
MIL-STD-202F,Method201A
(10-55Hz)
Moisture Sensitivity
Level
Level1J-STD-020C
Moisture Resistance
MIL-STD-202FMethod106,
HighHumidity(90-98%RH),
Heat (65
O
C)
Salt Spray
MIL-STD-202F,Method101D,
TestConditionB
Mechanical Shock
MIL-STD-202,Method213,
TestConditionI(100G’speakfor6
milliseconds)
Product Characteristics
Dimensions
Part Numbering System
Packaging
Rating Packaging Option Packaging Specication Quantity
Quantity &
Packaging Code
20A, 25A, 30A 24mmTapeandReel EIARS-481-2 2500 ER
40A 24mmTapeandReel EIARS-481-2(IEC286,part3) 1500 DR
Materials
Body:Ceramic
Cap:SilverPlatedBrass
Product Marking Body:BrandLogo,CurrentRating
Insulation Resistance
MIL-STD-202,method302,Test
Condition A (10,000 ohms, Minimum)
Solderability MIL-STD-202,Method208
Resistance to
Soldering Heat
MIL-STD-202,Method210,
TestConditionB(10secat260
O
C)
PCB
Recommendation for
Thermal Management
Min.copperlayerthickness=100µm
Min.coppertracewidth=20A,30
10mm (20A, 30A) / 15mm (40A)
Alternate methods of thermal manage-
mentmaybeused.Insuchcases,
under normal operations, the maxi-
mumtemperatureofthefusebody
should not exceed 80
O
C in a 25
O
C
environment.
10.10
(.397”)
3.120
(.123”)
12.50
(.492)
4.445
(.175”)
4.445
(.175”)
Recommended Pad Layout
Recommended Pad Layout
2.173
(.086”)
2.79
(.110”)
0.30
(.012”)
3.79
(.149”)
5.72
(.225”)
13.3
(.524”)
5.65
(.222”)
3.120
[.123”]
1.70 typ
(0.067”)
3.25
(.128”)
3.43
(.135”)
12.60
(.496”)
6.10
(.240”)
20 A
20 A, 30A:
40A:
F
40 A
F
0456 020. E R
SERIES
AMP Code
QUANTITY Code
PACKAGING Code
RefertoElectrical
characteristicstable
E=2500pcs
D=1500pcs
R=TapeandReel