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Littelfuse

Littelfuse 045403.5MR 3.5A 125V NANO2 SMD Time-Delay Fuse

Part Number: 045403.5MR

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045403.5MR is a 3.5A Littelfuse 454 Series part for time-delay surface-mount protection for power supplies, computing, networking, telecom and industrial electronics; this ordering code uses 12 mm tape and reel, 1000 pcs.

Rated Current3.5A
Rated Voltage125 V AC/DC
Breaking Capacity50 A @ 125 VAC/VDC; 300 A @ 32 VDC
PackageNANO²

045403.5MR is a Littelfuse 454 Series ordering option rated 3.5A. It is designed for time-delay surface-mount protection for power supplies, computing, networking, telecom and industrial electronics. NANO²® Slo-Blo® ceramic SMD fuse with silver-plated caps; nominal melting I²t 26.53 A²s; operating temperature -55°C to +125°C. The selected ordering configuration is 12 mm tape and reel, 1000 pcs. Verify coordination, ambient derating and the exact ordering code against the current Littelfuse datasheet before design-in.

Technical Specifications

Part Number
045403.5MR
Manufacturer Part Number
045403.5MR
Series
454 Series
Fuse Type
Surface-Mount Chip Fuse
Current Rating
3.5A
Voltage Rating
125 V AC/DC
AC / DC
AC/DC
Breaking Capacity
50 A @ 125 VAC/VDC; 300 A @ 32 VDC
I²t
26.53 A²s
Pre-arcing I²t
26.53
Operating Temperature
-55°C to +125°C
Package / Dimensions
NANO²
Mounting
Surface Mount (SMD)
Application
Battery charging systems · Computing · Industrial electronics · Networking · Power supplies · Telecom
Standard
EN 60127-1/-7 · UL/CSA/NMX 248-1 and 248-14
Terminal Type
Silver-plated caps
Fuse Speed
Time-Delay / Slo-Blo
Approvals
Agency approvals vary by rating · CSA · UL
Certifications
UL Recognized; CSA; CE; UKCA; PSE by rating

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