045203.5MRL – LITTELFUSE
3.5 A, 125 VAC/VDC Surface Mount Fuse
Stock Quantity: 185
Selling Unit: Each
| Quantity | Price (ex VAT) |
|---|---|
| 1+ | 6.18 |
| 10+ | |
| 50+ | |
| 100+ |
185 in stock
Contact us for volume pricing
- Same day shipping if ordered before 14.00 GMT
- 6 month warranty on all stock items
- All stock held and shipped from our UK warehouse
- Worldwide shipping available, contact us for a quotation
- We can ship on your DHL or UPS account if required
- Any import duties or taxes are the responsibility of the receiver
Overview
The LITTELFUSE 045203.5MRL is a NANO2® Slo-Blo® fuse meticulously engineered to safeguard sensitive electronic circuits from overcurrent events while accommodating transient inrush currents. Its critical operational characteristic lies in its carefully calibrated time-delay response, which significantly mitigates nuisance tripping often encountered with fast-acting fuses in applications with high startup current demands. A key design consideration for engineers is balancing this enhanced inrush withstand capability against the need for rapid fault interruption; excessively long time delays, while preventing nuisance trips, can delay protection during critical short-circuit events, necessitating careful selection based on the specific load characteristics.
Key Features
- Time-delay characteristic for inrush current tolerance
- Current Rating: 3.5A
- Voltage Rating: 125V AC/DC
- Operating Temperature Range: -55°C to +125°C
- Dimensions: 3.6mm x 10.3mm x 7.1mm
- UL Recognized (UL 248-1, UL 248-14)
Applications
The component is engineered for deployment in systems requiring high reliability and performance under specific operating conditions. It provides functional stability across the stated design envelope.
- Power sequencing for high-speed digital interfaces
- Inrush current management in switched-mode power supplies (SMPS)
- Protection of sensitive display backlighting circuits
- Overcurrent mitigation in portable consumer electronics battery charging systems
