0253.125V Datasheet, PDF (3/4 Pages) Littelfuse – Axial Lead & Cartridge Fuses PICO ll > Very Fast-Acting > 251/253 Series

Temperature Rerating Curve
Axial Lead & Cartridge Fuses
PICO^® ll > Very Fast-Acting > 251/253 Series
Average Time Current Curves
100
10
1
Note:
1. Rerating depicted in this curve is in addition to the standard rerating of 25% for
continuous operation.
Soldering Parameters
Recommended Process Parameters:
Wave Parameter
Preheat:
%FQFOET
PO
'MVY
"DUJWBUJPO
5FNQFSBUVSF
Temperature Minimum:
Temperature Maximum:
Preheat Time:
Lead-Free Recommendation
5ZQJDBM
*OEVTUSZ
3FDPNNFOEBUJPO
100° C
150° C
60-180 seconds
Solder Pot Temperature:
260° C Maximum
Solder Dwell Time:
2-5 seconds
Recommended Hand Soldering Parameters:
4PMEFS
*SPO
5FNQFSBUVSF

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$

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Heating Time: 5 seconds max.
Note: These devices are not recommended for IR or
Convection Reflow process
0.1
0.01
0.001
0.05 0.1
1
10
100
CURRENT IN AMPERES
1000
© 2012 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/251.html
or /253.html for current information.
251/253 Series