Fuses

Use the filters and product table below to compare Fuses components by manufacturer, availability, pricing reference and technical specifications. Review datasheets and key parameters to narrow the selection for your application.

If you already have a target part number, package, rating or quantity, send the requirement to Winsun (HK) Electronics for availability checks, BOM sourcing, shortage support and quotation assistance.

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Mfr. Part #	Availability	Price	Quantity	Datasheet	Series	Packaging	Product Status	Mounting Type	Fuse Type	Current Rating (Amps)	Voltage Rating - AC	Voltage Rating - DC	Response Time	Breaking Capacity @ Rated Voltage	Melting I²t	Approval Agency	Operating Temperature	Color	Size / Dimension
066401.6HXSL FUSE BOARD MNT 1.6A 250VAC RAD Littelfuse Inc.	2,185	-	RFQ	Datasheet	LT-5™ 664	Bulk	Obsolete	Through Hole	Board Mount (Cartridge Style Excluded)	1.6 A	250 V	-	Slow Blow	100A	10.0	CCC, CSA, KTL, METI, SEMKO, UL, VDE	-40°C ~ 85°C	-	0.335" Dia x 0.333" H (8.50mm x 8.45mm)
066402.5HXLL FUSE BOARD MNT 2.5A 250VAC RAD Littelfuse Inc.	3,943	-	RFQ	Datasheet	LT-5™ 664	Bulk	Obsolete	Through Hole	Board Mount (Cartridge Style Excluded)	2.5 A	250 V	-	Slow Blow	100A	32.0	CCC, CSA, KTL, METI, SEMKO, UL, VDE	-40°C ~ 85°C	-	0.335" Dia x 0.333" H (8.50mm x 8.45mm)
066402.5HXSL FUSE BOARD MNT 2.5A 250VAC RAD Littelfuse Inc.	3,164	-	RFQ	Datasheet	LT-5™ 664	Bulk	Obsolete	Through Hole	Board Mount (Cartridge Style Excluded)	2.5 A	250 V	-	Slow Blow	100A	32.0	CCC, CSA, KTL, METI, SEMKO, UL, VDE	-40°C ~ 85°C	-	0.335" Dia x 0.333" H (8.50mm x 8.45mm)
066406.3HXLL FUSE BOARD MNT 6.3A 250VAC RAD Littelfuse Inc.	9,989	-	RFQ	Datasheet	LT-5™ 664	Bulk	Obsolete	Through Hole	Board Mount (Cartridge Style Excluded)	6.3 A	250 V	-	Slow Blow	100A	262.0	CSA, KTL, UL	-40°C ~ 85°C	-	0.335" Dia x 0.333" H (8.50mm x 8.45mm)
066406.3HXSL FUSE BOARD MNT 6.3A 250VAC RAD Littelfuse Inc.	6,455	-	RFQ	Datasheet	LT-5™ 664	Bulk	Obsolete	Through Hole	Board Mount (Cartridge Style Excluded)	6.3 A	250 V	-	Slow Blow	100A	262.0	CSA, KTL, UL	-40°C ~ 85°C	-	0.335" Dia x 0.333" H (8.50mm x 8.45mm)
06641.25HXLL FUSE BRD MNT 1.25A 250VAC RADIAL Littelfuse Inc.	8,308	-	RFQ	Datasheet	LT-5™ 664	Bulk	Obsolete	Through Hole	Board Mount (Cartridge Style Excluded)	1.25 A	250 V	-	Slow Blow	100A	6.3	CCC, CSA, KTL, METI, SEMKO, UL, VDE	-40°C ~ 85°C	-	0.335" Dia x 0.333" H (8.50mm x 8.45mm)
06641.25HXSL FUSE BRD MNT 1.25A 250VAC RADIAL Littelfuse Inc.	4,177	-	RFQ	Datasheet	LT-5™ 664	Bulk	Obsolete	Through Hole	Board Mount (Cartridge Style Excluded)	1.25 A	250 V	-	Slow Blow	100A	6.3	CCC, CSA, KTL, METI, SEMKO, UL, VDE	-40°C ~ 85°C	-	0.335" Dia x 0.333" H (8.50mm x 8.45mm)
06643.15HXLL FUSE BRD MNT 3.15A 250VAC RADIAL Littelfuse Inc.	9,960	-	RFQ	Datasheet	LT-5™ 664	Bulk	Obsolete	Through Hole	Board Mount (Cartridge Style Excluded)	3.15 A	250 V	-	Slow Blow	100A	57.0	CCC, CSA, KTL, METI, SEMKO, UL, VDE	-40°C ~ 85°C	-	0.335" Dia x 0.333" H (8.50mm x 8.45mm)
06643.15HXSL FUSE BRD MNT 3.15A 250VAC RADIAL Littelfuse Inc.	3,268	-	RFQ	Datasheet	LT-5™ 664	Bulk	Obsolete	Through Hole	Board Mount (Cartridge Style Excluded)	3.15 A	250 V	-	Slow Blow	100A	57.0	CCC, CSA, KTL, METI, SEMKO, UL, VDE	-40°C ~ 85°C	-	0.335" Dia x 0.333" H (8.50mm x 8.45mm)
0664.800HXLL FUSE BRD MNT 800MA 250VAC RADIAL Littelfuse Inc.	8,461	-	RFQ	Datasheet	LT-5™ 664	Bulk	Obsolete	Through Hole	Board Mount (Cartridge Style Excluded)	800 mA	250 V	-	Slow Blow	100A	2.2	CSA, KTL, SEMKO, UL, VDE	-40°C ~ 85°C	-	0.335" Dia x 0.333" H (8.50mm x 8.45mm)

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FREQUENTLY ASKED QUESTIONS

Fuses FAQ

Common questions about filtering, comparing and sourcing Fuses components.

How can I narrow the Fuses selection?

Use the available manufacturer and technical parameter filters to reduce the product list. Compare the remaining part numbers against your electrical, package and application requirements.

Should I confirm the datasheet before selecting a part?

Yes. Always review the manufacturer datasheet to confirm ratings, package, operating conditions and other technical details before finalizing a component for your design.

Can Winsun (HK) Electronics help source a specific Fuses part number?

Yes. Send the exact manufacturer part number and required quantity for availability, lead-time and quotation support.

Do you support BOM, shortage or alternative-part requirements?

Yes. You can submit a BOM or shortage list for sourcing assistance. Where appropriate, our team can also help review possible alternative-part options.