Fuse Terminal And Contact
High Conductivity Copper Alloys: Processed from C1100 ETP copper (100% IACS minimum conductivity) to ensure low contact resistance and heat reduction in high-current circuit protection circuits.
Integrated Precision Metal Stamping: Progressive dies execute blanking, bending, and coin-forming in a single pass, holding dimensional tolerances within plus or minus 0.01mm for automated feeding.
Thickened Silver & Tin Plating: Electroplated with 3 to 5 microns of Ag over a 2 to 3 microns Ni barrier coat to eliminate surface oxidation and maintain sub-milliohm joint resistance.
Integrated Resistance Spot Welding: Supports automated projection and spot welding of end blade ferrules copper and end tag copper components with joint shear strength exceeding 850N.
Automotive Fuse System Compatibility: Engineered specifically for quick-blow fuse contact applications, 800V DC EV battery packs, and commercial energy storage distribution units.
IATF 16949 Certified Production: Complete quality control backed by optical sorting, CMM dimensional verification, salt spray testing, and PPAP Level 3 documentation.
- Fast Delievery
- Quality Assurance
- 24/7 Customer Service
Product Introduction
In high-voltage EV power distribution units and energy storage protection modules, current spikes demand electrical connections with minimal internal resistance and thermal rise. A precision-engineered Fuse Terminal and Contact acts as the core conductive interface, ensuring fault current interrupts cleanly without premature degradation. Utilizing high-speed progressive dies and automated in-die riveting, our factory produces custom fuse link contact copper components and end blade ferrules copper structures that maintain dimensional stability across million-cycle production runs.
Technical Specifications
| Specification Parameter | Engineering Value / Technical Standard |
| Contact Resistance | 0.1 mΩ to 1.0 mΩ (Minimizes energy loss and improves system stability) |
| Current Carrying Capacity | A few Amperes up to 1000A+ (Scalable from compact electronics to heavy industrial systems) |
| Voltage Rating | 100V to 1500V DC/AC (Ensures high dielectric breakdown resistance without leakage) |
| Dimensional Specifications |
Electronics Grade: Length 5mm–20mm, Width/Thickness 1mm–3mm
Industrial Grade: Customized heavy-duty dimensions for high current |
Application Scenarios & Industry Integration
Consumer Electronics
Integrated into smartphones, smartwatches, and tablets. Compact fuse terminal contact designs deliver precise low-ampere overcurrent protection for sensitive circuitry in portable devices.
Smart Home & Appliances
Applied in smart TVs, HVAC units, and refrigerators. Quickly interrupts fault currents during power surges to protect core electrical components and prevent thermal hazard for Fuse Terminal and Contact.
Industrial Automation & Robotics
Deployed in automated production lines, robot controllers, and motor drives. Rapidly isolates circuit anomalies to protect high-value industrial assets and prevent operational downtime.
Power Systems & Grid Infrastructure
Built for high/low-voltage switchgear, substations, and distribution lines. Heavy-duty electrical fuse contacts instantly isolate short circuits to prevent major grid power failures.
Frequently Asked Questions
Q: What plating options best reduce contact resistance on a copper contact for new energy fuse applications?
A: A silver plating layer of 3 to 5 microns over an electrolytic nickel barrier of 2 to 3 microns provides the lowest contact resistance (0.5 mΩ or lower). It prevents copper migration, resists oxidation under continuous thermal load, and maintains stable conductivity in 800V DC systems.
Q: How do you control dimensional consistency on a stamped Fuse Terminal and Contact during mass production?
A: We utilize high-speed progressive stamping presses equipped with in-die sensors and optical vision sorters. Critical dimensions on every Fuse Terminal Contact part are held within plus or minus 0.01mm, with continuous SPC tracking to maintain CPK values of 1.67 or higher.
Q: Can you supply PPAP Level 3 documentation and custom sample prototypes for OEM automotive fuse projects?
A: Yes. We support Tier 1 automotive clients with full PPAP Level 3 submissions-including IMDS registration, dimensional CMM reports, control plans, and PFMEA-with custom T1 prototypes delivered within 7 to 10 working days.
Q: What operational and installation precautions should be taken when using L-type fuse contacts?
A: Ensure precise specification matching (rated voltage, current, ambient temperature, and prospective fault current) to prevent protection failure. During installation, avoid excessive torque to protect the contact structure and plating, ensuring tight connections. Regularly inspect for oxidation, corrosion, or elevated contact resistance, and strictly operate within rated electrical limits to avoid overheating or severe failure.
Contact Us
Share your 2D/3D CAD files (STEP/DWG) or target electrical specifications with our engineering team for a comprehensive DFM review and factory-direct quotation within 24 hours.
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