Surface Mount Fuses
NANO2® > Slo-Blo® > 452/454 Series
Product Characteristics
#PEZꢏꢀꢀ$FSBNJDꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ
5FSNJOBUJPOTꢏꢀꢀ(PMEꢁQMBUFEꢀ$BQTꢀꢂꢒꢆꢈꢃꢀꢀꢎ
.* ꢁ45%ꢁꢈꢉꢈꢌꢀ.FUIPEꢀꢇꢉ ꢌꢀ5FTUꢀ
$POEJUJPOꢀ#ꢌꢀꢆꢀDZDMFTꢌꢀꢁꢐꢆ¡$ꢀꢎꢀ
ꢔꢇꢈꢆ¡$ꢌꢀꢇꢆꢀNJOVUFTꢀ!ꢀFBDIꢀFYUSFNF
Materials
Thermal Shock
Mechanical Shock
Vibration
ꢀꢀꢀꢀꢀ4JMWFSꢁQMBUFEꢀ$BQTꢀꢂꢒꢆꢒꢃ
.* ꢁ45%ꢁꢈꢉꢈꢌꢀ.FUIPEꢀꢈꢇꢄꢌꢀ5FTUꢀ*ꢏꢀ
%FFOFSHJ[FEꢋꢀꢀꢇꢉꢉ(ꢕTꢀQLꢀBNQMJUVEFꢌꢀ
TBXUPPUIꢀXBWFꢀꢐNTꢀEVSBUJPOꢌꢀꢄꢀ
DZDMFTꢀ9:;ꢔYZ[ꢀꢖꢀꢇꢓꢀTIPDLT
Product Marking
#SBOEꢌꢀ"NQFSFꢀ3BUJOH
Operating
Temperature
ꢁꢆꢆ¡$ꢀUPꢀꢇꢈꢆ¡$
Moisture
Sensitivity Level
.* ꢁ45%ꢁꢈꢉꢈꢌꢀ.FUIPEꢀꢈꢉꢇꢏꢀꢉꢋꢉꢄwꢀ
BNQMJUVEFꢌꢀꢇꢉꢁꢆꢆꢀ)[ꢀJOꢀꢇꢀNJOꢋꢀꢀꢈISTꢀ
FBDIꢀ9:;ꢖꢐIST
-FWFMꢀꢇꢌꢀ+ꢁ45%ꢁꢉꢈꢉ$
Solderability
.* ꢁ45%ꢁꢈꢉꢈꢌꢀ.FUIPEꢀꢈꢉꢓ
Moisture Resistance
Salt Spray
.* ꢁ45%ꢁꢈꢉꢈꢌꢀ.FUIPEꢀꢇꢉꢐꢌꢀꢇꢉꢀDZDMFT
Insulation
Resistance (after
Opening)
.* ꢁ45%ꢁꢈꢉꢈꢌꢀ.FUIPEꢀꢄꢉꢈꢌꢀ5FTUꢀ$POEJUJPOꢀ
"ꢀꢂꢇꢉꢌꢉꢉꢉꢀPINTꢀNJOJNVNꢃ
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$POEJUJPOꢀ#ꢀꢂꢒꢓISTꢃ
Resistance to Soldering
Heat
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Part Numbering System
Dimensions
0452 001. M R L
6.10
(.240")
SERIES
F
T
AMP Code
3FGFSꢀUPꢀ"NQꢀ$PEFꢀDPMVNOꢀJOꢀUIFꢀ
1 A
&MFDUSJDBMꢀ4QFDJåDBUJPOTꢀUBCMFꢋꢀ
The dot is positioned at the end of the
number sequence with whole ratings
and within for fractional ratings.
Example:ꢀꢉꢋꢄꢅꢆꢀ"NQꢀQSPEVDUꢀJTꢀ
ꢉꢒꢆꢈ.375.3-ꢀꢂꢇꢀBNQꢀQSPEVDUꢀTIPXOꢃ
1.45
(.057")
2.69
(.106")
2.69
(.106")
QUANTITY Code
.ꢀꢖꢀꢇꢉꢉꢉꢀQDT
/ꢀꢖꢀꢆꢉꢉꢉꢀQDT
6.86
(.270")
PACKAGING Code
3ꢀꢖꢀ5BQFꢀBOEꢀ3FFM
3.15
RoHS Compliant & Halogen Free
(.124")
2.95
(.116")
NOTE: “L” suffix applies to 452 series only
ꢒꢆꢈꢀ TFSJFTꢀ NBZꢀ CFꢀ PSEFSFEꢀ BTꢀ FJUIFSꢀi3P)4ꢀ BOEꢀ )'wꢀ ꢂi-wꢀ TVGåYꢃꢀ PSꢀ OPOꢁ3P)4ꢀ ꢂOPꢀ
TVGåYꢃꢀWFSTJPOꢋ
1.96
(.077")
ꢒꢆꢒꢀTFSJFTꢀJTꢀBWBJMBCMFꢀPOMZꢀBTꢀi3P)4ꢀBOEꢀ)'wꢀWFSTJPOꢀBOEꢀEPFTꢀOPUꢀSFRVJSFꢀi-wꢀTVGåYꢋ
1MFBTFꢀEPꢀOPUꢀJODMVEFꢀi-wꢀTVGåYꢀXJUIJOꢀꢒꢆꢒꢀTFSJFTꢀPSEFSJOHꢀJOTUSVDUJPOTꢋ
Recommended pad layout
Packaging
Quantity &
Packaging Code
Packaging Option
Packaging Specification
Quantity
ꢇꢈNNꢀ5BQFꢀBOEꢀ3FFM
ꢇꢈNNꢀ5BQFꢀBOEꢀ3FFM
&*"ꢀ34ꢁꢒꢓꢇꢁꢇꢀꢂ*&$ꢀꢈꢓꢐꢌꢀQBSUꢀꢄꢃ
&*"ꢀ34ꢁꢒꢓꢇꢁꢇꢀꢂ*&$ꢀꢈꢓꢐꢌꢀQBSUꢀꢄꢃ
ꢆꢉꢉꢉ
/3
1000
.3
© 2009 Littelfuse, Inc.
452/454 Series
63
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/452.html
or /454.html for current information.
LITTELFUSE [ LITTELFUSE ]
