0451.500MR – LITTELFUSE
Fuse: 500mA, 125VAC/125VDC, SMD, square end block, board mount.
Stock Quantity: 8
Selling Unit: Each
| Quantity | Price (ex VAT) |
|---|---|
| 1+ | 2.92 |
| 10+ | |
| 50+ | |
| 100+ |
8 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 0451.500MR is a highly reliable Surface Mount Device (SMD) fuse designed for robust circuit protection in compact electronic assemblies. Its primary function is to interrupt current flow when fault conditions exceed its 500 mA rating, safeguarding sensitive components. A critical design consideration is its fast-acting response time, crucial for preventing damage from transient overcurrents, though engineers must balance this speed with the potential for nuisance tripping in systems with high inrush currents, necessitating careful impedance matching and component selection.
Key Features
- Current Rating: 500 mA
- AC/DC Voltage Rating: 125 V
- Response Time: Fast Blow
- Breaking Capacity: 50A @ 125V
- Dimensions: 6.10mm x 2.69mm x 2.69mm
- Operating Temperature: -55°C to 125°C
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.
- Overcurrent protection for low-power DC-DC converters
- Input stage surge limiting in portable instrumentation
- Protection of sensitive analog signal conditioning circuits
- Current limiting for battery management systems in compact devices
