Surface Mount Fuses
NANO
2®
> 458 Series 1206 Size Inrush Withstand Fuse
458 Series Fuse
Description
2®
Features
Agency Approvals
AGENCY
AGENCY FILE NUMBER
E10480
AMPERE RANGE
1A–10A
Applications
Electrical Characteristics for Series
% of Ampere
Rating
Opening Time
Electrical Specifications by Item
Ampere
Rating
(A)
Amp
Code
Max
Voltage
Rating (V)
Interrupting
Rating
Nominal Cold
Resistance
(Ohms)
Nominal
Melting
I
2
t (A
2
sec)
Agency
Approvals
Marking
1
2
2
4
5
4
5
Notes:
1. l
2
t values stated for 8 msec opening time
2. Cold resistance measured at less than 10% of rated current at 25°C.
3. Agency Approval Table Key: X=Approved or Certified, P=Pending and Blank=Not Approved
4. Have special electrical characteristic needs? Contact Littelfuse to learn more about application specific options.
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/458.html for current information.
69
Revised: March 17, 2009
458 Series
458 Series
Surface Mount Fuses
Introduction to Circuit Protection
Transientology
NANO > 458 Series 1206 Size Inrush Withstand Fuse
2®
Temperature Rerating Curve
Average Time Current Curves
Soldering Parameters
Reflow Condition
- Temperature Min (T
s(min)
)
- Time (Min to Max) (t
s
)
Average ramp up rate (Liquidus Temp
(T
L
) to peak
T
S(max)
to T
L
- Ramp-up Rate
Reflow
- Temperature (T
L
) (Liquidus)
- Temperature (t
L
)
T
P
Ramp-up
t
P
Critical Zone
T
L
to T
P
Temperature
Pre Heat
- Temperature Max (T
s(max)
)
T
L
T
S(max)
Preheat
t
L
Ramp-down
T
S(min)
t
S
25
time to peak temperature
(t 25ºC to peak)
Time
Peak Temperature (T
P
)
Time within 5°C of actual peak
Temperature (t
p
)
Ramp-down Rate
Time 25°C to peak Temperature (T
P
)
Do not exceed
458 Series
70
Revised: March 17, 2009
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/458.html for current information.
Surface Mount Fuses
NANO
2®
> 458 Series 1206 Size Inrush Withstand Fuse
Product Characteristics
Materials
Product Marking
Insulation Resistance
Operating Temperature
Thermal Shock
Vibration
Moisture Resistance
Solderability
Resistance to
Soldering Heat
Moisture Sensitivity
Level
Salt Spray
Shock
Dimensions
3.175
(.125”)
1.575
(.062”)
1.575
(.062”)
Part Numbering System
0458 001. D R
SERIES
AMP Code
QUANTITY Code
PACKAGING Code
0.813
(.032”)
3.65
(.143”)
2.05
(.081”)
Example:
01.5
1.185
(.047”)
1.28
(.050”)
Recommended Pad Layout
Packaging
Packaging Option
Packaging Specification
Quantity
Quantity &
Packaging Code
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/458.html for current information.
71
Revised: March 17, 2009
458 Series
458 Series
Introduction to Circuit Protection
Transientology
72
Revised: March 17, 2009
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
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