5x20mm SMT Fuse Holder (10A, 250VAC, Surface Mount PCB Type)
5x20mm SMT fuse holder with UL94 V0 PBT housing and tin-plated copper alloy contacts, 10A 250VAC UL certified, lead-free reflow solderable for high density PCB overcurrent protection, RoHS compliant.
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The SMT fuse holder for 5x20mm cartridge fuses is a high-quality surface mount fuse base designed for high-density printed circuit boards. This SMT fuse holder adopts UL94 V0 flame retardant PBT insulating housing with high-conductivity alloy contacts, delivering stable electrical connection and reliable overcurrent protection for SMT assembly circuits. Compatible with lead-free reflow soldering, it is widely used in consumer electronics, industrial control, power supplies and automotive auxiliary systems, featuring compact size, automated mounting compatibility and consistent performance.
Key Features of 5x20mm SMT Fuse Holder
- Compatible with standard 5 x 20mm cartridge fuses, the most widely used small fuse specification
- UL rated: 10A at 250VAC, with official UL certification (E473147)
- Insulator material: PBT engineering plastic, UL94 V0 flame retardant grade, black color
- Contact material: Copper alloy with nickel + tin plating, low contact resistance and excellent solderability
- Surface mount design, fully compatible with lead-free reflow soldering and high-speed SMT placement
- Withstanding voltage: 1.5kV, reliable insulation performance
- Operating temperature range: -20℃ to +120℃, suitable for various industrial and consumer environments
- RoHS compliant and lead-free, meeting global electronic product export standards
Compared with through-hole fuse holders, this surface mount PCB fuse socket saves valuable board space, supports fully automated SMT production, and significantly improves assembly efficiency for mass production. Its stable contact resistance ensures long-term reliable performance even under continuous rated current operation.
This surface mount fuse holder is optimized for modern high-density PCB design. Compared with traditional through-hole fuse bases, it eliminates manual insertion processes, fully adapts to automated SMT production lines, and effectively reduces assembly costs for mass production orders. Its consistent contact force and stable electrical parameters ensure uniform performance across bulk production batches, making it a standard protection component for consumer electronics, industrial control and new energy auxiliary circuits.</p>
Main Electrical Specifications
| Item | Parameter |
|---|---|
| Model | PTF 15S1 (15S-1) |
| Compatible Fuse Size | 5 x 20mm cartridge fuse |
| UL Rated Current | 10A |
| Rated Working Voltage | 250 VAC |
| Withstanding Voltage | 1.5 kV |
| Contact Resistance | 5 / 10 mΩ Max. |
| Insulator Material | PBT, UL94 V0 flame retardant, black |
| Contact Material | Copper alloy, Ni + Sn plating |
| Operating Temperature | -20 ℃ ~ +120 ℃ |
| Soldering Method | Lead-free reflow soldering |
| Protection Class | IP00 |
| Certification | UL E473147, RoHS compliant, Lead-free |
Mechanical Dimensions
| Dimension Item | Value (mm) |
|---|---|
| Total Length | 24.8 |
| Body Width | 9.4 |
| Body Height | 12.0 |
| Mounting Pitch | 22.7 |
Selection & Application Guide
When selecting an SMT fuse holder, first confirm the required fuse size, rated voltage and current, and assembly process. For high-volume automated production, this surface mount model is the preferred choice as it is compatible with standard SMT placement machines and reflow soldering processes. For high-temperature operating environments above 85℃, derate the current appropriately to ensure long-term reliability. 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 failure or insufficient protection.
Application Scenarios
- Consumer electronics and household appliance control boards
- Switching power supplies, adapters and charger circuits
- Industrial control equipment and instrumentation
- Automotive electronic auxiliary systems
- Communication equipment and network terminals
- LED lighting drivers and smart home modules
- High-density PCB designs with limited board space
Installation & Usage Notes
1. Select a matching 5x20mm cartridge fuse with appropriate current and voltage rating before use.
2. Follow standard lead-free reflow soldering profiles to avoid housing deformation or contact oxidation caused by excessive temperature.
3. Do not use the fuse holder beyond its rated voltage and current range to prevent insulation breakdown and safety hazards.
4. Disconnect power before replacing the fuse to avoid electric shock and short-circuit damage.
5. Store in a dry, dust-free and corrosion-free environment to prevent contact oxidation and performance degradation.
6. For products used in harsh environments, additional conformal coating can be applied to improve reliability.
