PCB Fuse Holder with Cover | 5x20mm 10A 250V Flame Retardant
5x20mm PCB mount fuse holder with dustproof cover, PBT UL94 V0 flame retardant housing with nickel plated brass terminals, 6.3A/10A 250V AC, through hole soldering for electronic circuit overcurrent protection, RoHS CE certified.
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The PCB fuse holder with dustproof cover for 5x20mm cartridge fuses is a dust-protected through-hole circuit protection component. This PCB fuse holder adopts high-temperature PBT flame retardant housing with precision stamped nickel-plated brass terminals, delivering stable electrical connection and reliable overcurrent protection for various printed circuit boards.
. This PCB mount fuse holder with cover adopts high-temperature PBT flame retardant housing with precision stamped nickel-plated brass terminals, delivering stable electrical connection and reliable overcurrent protection for various printed circuit boards. With an integrated dustproof cover, it effectively prevents dust, debris and moisture from entering the contact area, greatly improving operational safety and service life in industrial and dusty environments. Widely used in switching power supplies, adapters, household appliances, instrumentation and industrial control boards, it features low contact resistance, high insulation performance and easy fuse replacement.
Key Features of 5x20mm PCB Mount Fuse Holder
- Compatible with all standard 5x20mm glass tube cartridge fuses on the market
- Rated current: 6.3A / 10A; rated voltage: 250V AC, covering most low-voltage power scenarios
- Housing material: PBT engineering plastic, UL94 V0 flame retardant grade, high temperature resistance
- Terminal material: Nickel-plated brass, low contact resistance, high conductivity and anti-oxidation
- Integrated dustproof cover, prevents dust and debris from entering, improves insulation safety
- Through-hole PCB mounting, compatible with wave soldering and manual soldering
- Easy fuse replacement, no additional tools required for daily maintenance
- RoHS and CE certified, suitable for global electronic product export
Compared with open-type fuse holders without cover, this dustproof 5x20mm fuse base provides better environmental adaptability. Its closed cover structure effectively avoids poor contact caused by dust accumulation, making it more suitable for industrial workshops, outdoor equipment and dusty working environments, and significantly reduces later maintenance frequency.
Main Technical Specifications
| Item | Parameter |
|---|---|
| Model | MF/563 |
| Compatible Fuse | Standard 5 x 20mm glass tube cartridge fuse |
| Rated Current | 6.3A / 10A Max. |
| Rated Voltage | 250V AC |
| Current Range | 0.1A ~ 6.3A (standard rating) |
| Housing Material | PBT, UL94 V0 flame retardant |
| Terminal Material | Brass, nickel-plated surface |
| Mounting Type | PCB through hole insert soldering |
| Operating Temperature | -20℃ ~ +80℃ |
| Protective Feature | Integrated dustproof cover |
| Certifications | RoHS, CE compliant |
Selection & Application Guide
When selecting a PCB mount fuse holder with cover, first confirm the fuse size, system rated voltage and working current. For dusty, humid or industrial environments, models with dustproof cover are strongly recommended to avoid contact oxidation and poor contact caused by dust accumulation. Always match the fuse rating with the actual working current of the circuit, reserving a 1.25-1.5 times safety margin to avoid premature fuse failure or insufficient protection. For high-temperature operating environments above 60℃, derate the current appropriately to ensure long-term reliable operation.
Application Scenarios
- Switching power supplies, AC/DC adapters and charger circuits
- Household appliances and small electrical equipment control boards
- Industrial control instrumentation and automation equipment
- Communication equipment and network terminal devices
- LED lighting driver circuits
- Industrial control boards and electronic circuit protection
- Power distribution modules for dusty workshop equipment
Installation & Usage Notes
1. Select a matching 5x20mm glass tube fuse with appropriate current rating according to circuit protection requirements.
2. Ensure proper soldering quality during through-hole installation to avoid cold solder joints that cause increased contact resistance and overheating.
3. Close the dustproof cover after installing the fuse to achieve the expected dust and debris protection effect.
4. Do not use the fuse holder beyond its rated voltage and current range to prevent insulation breakdown and safety hazards.
5. Disconnect the power supply before replacing the fuse to avoid electric shock and short-circuit damage.
6. Store in a dry, dust-free and corrosion-free environment to prevent terminal oxidation and insulation performance degradation.
Its dustproof enclosure also makes it a reliable choice for outdoor equipment and industrial workshop devices with relatively high dust levels
