Circuit Protection
045903.5UR
ActiveLITTELFUSE
FUSE, SURFACE MOUNT, 3.5 A, VERY FAST ACTING, 125 VAC, 125 VDC, 7.2MM X 4.3MM, PICO 459 SERIES
Deep-Dive with AI
Search across all available documentation for this part.
Circuit Protection
045903.5UR
ActiveLITTELFUSE
FUSE, SURFACE MOUNT, 3.5 A, VERY FAST ACTING, 125 VAC, 125 VDC, 7.2MM X 4.3MM, PICO 459 SERIES
Deep-Dive with AI
Technical Specifications
Parameters and characteristics for this part
| Specification | 045903.5UR |
|---|---|
| Approval Agency | CSA, UL |
| Breaking Capacity @ Rated Voltage | 300 A, 50 A |
| Current Rating (Amps) | 3.5 A |
| DC Cold Resistance | 0.024 Ohms |
| Fuse Type | Board Mount (Cartridge Style Excluded) |
| Melting I²t | 1.65 I²t |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 125 °C |
| Operating Temperature [Min] | -55 C |
| Package / Case | 2-SMD, J-Lead |
| Response Time | Fast Blow |
| Size / Dimension [x] | 7.24 mm |
| Size / Dimension [x] | 0.285 " |
| Size / Dimension [y] | 4.32 mm |
| Size / Dimension [y] | 0.17 in |
| Size / Dimension [z] | 3.05 mm |
| Size / Dimension [z] | 0.12 " |
| Voltage Rating - AC | 125 V |
| Voltage Rating - DC | 125 VDC |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
Description
General part information
045903.5 Series
The 459 Series Very Fast-Acting SMF is based on Littelfuse PICO® fuse through-hole technology, though offered in a surface mount package. This series of devices meets the requirements of the RoHS directive.
Documents
Technical documentation and resources