Brass Fuse Inner Cap Industry Knowledge
Jul 24, 2025
As a key conductive component in the fuse assembly, the performance stability of the brass fuse inner cap is directly related to the conduction efficiency and safety performance of the entire fuse system. In new energy, industrial control, power storage, and high-end electronic systems, the Brass Fuse Cap not only carries the effective conduction of current, but also is the core component to ensure the long-term stable operation of the circuit system.

Product material advantages
Brass Tube End Cap is mainly made of H65 high-precision brass (65% copper, CuZn36/C2700), which has excellent mechanical strength and good conductivity. Its tensile strength σb ≥ 440 MPa ensures that the product can still maintain a stable structure in a high-voltage electrical environment and is not easy to deform or break. Due to its good stamping performance, H65 brass enables components to have higher consistency and forming accuracy in complex shape processing, and is widely used in various high-demand electrical components.

Diversified surface treatment processes
To improve the electrical performance and corrosion resistance of the product, we provide a variety of surface treatment solutions to meet the needs of different application scenarios, including:
1. Silver plating: significantly improves conductivity, suitable for fuse environments with higher current density.
2. Bright tin plating: prevents oxidation and improves weldability.
3. Lead-free matte tin plating: meets EU environmental standards and meets RoHS and REACH regulations.
4. Nickel plating: improves corrosion resistance and mechanical hardness, and enhances service life.
5. Ultrasonic cleaning: removes microscopic oil and particles to ensure the reliability of subsequent welding or electrical contact.

Manufacturing process and quality system
We have complete independent design and processing capabilities for stamping dies, and cooperate with high-precision high-speed punching production lines to ensure that Brass Terminal Cap maintains extremely high consistency in mass production, and the dimensional tolerance can be controlled within ±0.02mm. The entire manufacturing process strictly follows the ISO9001 and IATF16949 quality management systems, and fully complies with RoHS and REACH environmental certification requirements.
To support customers' new product development, we provide free samples (10-50 pieces) and complete the development of sample molds and sample delivery within 20-25 days.
Fast delivery and capacity guarantee
The standard order delivery cycle only takes 7-10 days, and the sample development time is controlled within 20-25 days (including mold manufacturing cycle). With an automated production capacity of up to 50 million pieces per month, we can quickly respond to large-volume orders and meet the strict requirements of global customers for delivery stability and inventory security.
Wide range of product applications
Brass Solder End Cap is widely used in a variety of mid-to-high-end fuse systems. Typical applications include:
PV photovoltaic fuse
EV new energy vehicle fuse
DC fuse protection for energy storage systems
UPS uninterruptible power supply
PDU power distribution unit
NH/BS series industrial fuses
Fast fuse system
In these fields, the Brass Compression Cap not only needs to withstand large current impacts, but also needs to maintain good conduction performance and structural strength in high temperature and complex environments. Through years of industry experience and technical accumulation, we continue to optimize material ratios, surface treatment, and precision stamping processes, so that our products have significant advantages in reliability, conductive efficiency, and thermal stability.

Packaging, transportation, and customer support
All Brass Plumbing Caps undergo 100% appearance and size inspection before leaving the factory. They are individually packaged in anti-static plastic bags inside and packed in reinforced cartons or pallets outside to prevent oxidation, collision, and mixing during transportation. At the same time, we provide flexible customization services to global customers, support OEM/ODM solution docking, and meet different structural specifications and electrical performance parameter requirements.

Conclusion
In rapidly developing application scenarios such as new energy, power electronics, and high-reliability industrial control, Brass Fuse Inner Cap is not only a basic component but also carries the key mission of safe operation of the system. We are always committed to providing brass fuse inner cap products with high precision, high stability, and high cost performance, helping global customers win reliable electrical connections and brand reputation in the fiercely competitive market. Welcome to contact us for more samples and customized cooperation information.
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