Specification	0521004.MAT1L

Approval Agency	cURus
Breaking Capacity	300 A
Current Rating	4 A
DC Cold Resistance	20.4 mOhms
Fuse Type	Board Mount (Cartridge Style Excluded)
Melting I²t	2.02
Mounting Type	Through Hole
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-55 °C
Package / Case	Axial
Response Time	Fast Blow
Size / Dimension Diameter	0.135 in
Size / Dimension Length	0.315 in
Voltage Rating - DC	75 V

521 Series

Part	DC Cold Resistance	Melting I²t	Current Rating	Response Time	Approval Agency	Breaking Capacity	Voltage Rating - DC	Package / Case	Size / Dimension Length	Size / Dimension Diameter	Mounting Type	Operating Temperature (Max)	Operating Temperature (Min)	Fuse Type
LITTELFUSE 052103.5YAT1L	0.024 Ohms	1.61	3.5 A	Fast Blow	cURus	300 A	75 V	Axial	0.315 in	0.135 in	Through Hole	125 °C	-55 °C	Board Mount (Cartridge Style Excluded)
LITTELFUSE 052103.5MAT1L	0.024 Ohms	1.61	3.5 A	Fast Blow	cURus	300 A	75 V	Axial	0.315 in	0.135 in	Through Hole	125 °C	-55 °C	Board Mount (Cartridge Style Excluded)
LITTELFUSE 0521004.MAT1L	20.4 mOhms	2.02	4 A	Fast Blow	cURus	300 A	75 V	Axial	0.315 in	0.135 in	Through Hole	125 °C	-55 °C	Board Mount (Cartridge Style Excluded)

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