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0603SFP450F-32-2

Littelfuse 0603SFP450F/32-2 SFP Fuse, 4.5 A, 32 V

MPN0603SFP450F/32-2
Obsolete

Littelfuse Inc. SFP series board mount fuse, 0603SFP450F/32-2, 4.5 A, 32 VDC, 50 A breaking capacity, 0603 (1608 metric) surface mount package.

$0.9300Ref. price · indicative, final on quote
Littelfuse Inc. 0603SFP450F/32-2 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

0603SFP450F/32-2 specifications
ParameterValue
SeriesSFP
Fuse typeBoard Mount (Cartridge Style Excluded)
MountingSurface Mount
Voltage rating - DC32 V
Breaking capacity @ rated voltage50A
Current rating4.5 A
Operating temperature-55°C~125°C
Size (Dimension)0.063\" L x 0.032\" W x 0.032\" H (1.60mm x 0.81mm x 0.81mm)
PackageTape & Reel (TR); Cut Tape (CT)
Case0603 (1608 Metric)
DC cold resistance0.014 Ohms

Product details

4.5 A at 32 VDC, 50 A interrupt rating

The Littelfuse 0603SFP450F/32-2 is a 4.5 A, 32 VDC board-mount fuse from the SFP series, rated to interrupt 50 A at the rated voltage. The 0603 (1608 metric) footprint is the standard 0.063" x 0.032" land pattern — no special pad geometry needed beyond the manufacturer's recommended solder pad layout. The 0.032" seated height keeps it clear of most conformal-coating spray shadows.

Obsolete — plan the BOM migration

Littelfuse lists the 0603SFP450F/32-2 as obsolete. New designs should evaluate a current Littelfuse 0603 fuse family with matching 4.5 A rating and 32 VDC or higher voltage rating. The 0603 package is MSL 1 per typical Littelfuse fuse construction — no dry-bake required before reflow if the reel seal is intact.

Frequently asked questions

How can I order 0603SFP450F/32-2 or check availability?

This part is obsolete but available through independent surplus channels.

What is the closest pin-compatible alternative to 0603SFP450F/32-2?

No official pin-compatible successor is listed by Littelfuse. A functional replacement requires a 0603 package, 4.5 A rating, 32 VDC or higher voltage rating, and 50 A or higher breaking capacity. The SFP series is discontinued, so a parametric search across the current Littelfuse 0603 fuse portfolio is the migration path.