What are Copper Contact Terminals?
Copper Contact Terminals are engineered for current-carrying and switching assemblies used in industrial relays, low-voltage circuit breakers, and energy storage BMS systems. These components operate under repeated switching, mechanical vibration, and temperature variation, where both electrical conduction and resistance to arc-related wear must be considered.
The product shown uses a T2 high-purity copper terminal with a riveted silver alloy contact. The AgSnO₂ or AgNi contact is cold-riveted onto the copper base, combining the conductivity of copper with the wear characteristics required at the switching interface.
Material Composition of Silver Contact Riveted Copper Stamping Parts
Silver Alloy Contact
Material: Commonly used are AgSnO₂ (silver tin oxide), AgNi (silver nickel), AgCdO (silver cadmium oxide), etc.
Function: Provides the actual contact interface, undertaking the core functions of current switching, arc erosion resistance, and weld resistance. AgSnO₂ is particularly suitable for DC loads, while AgNi is an economical choice for general AC loads.
Copper Stamping Base
Material: High-purity copper, such as T2 or C1100 (Cu≥99.90%).
Function: Provides structural strength and a mounting interface. Its extremely high conductivity (≥100% IACS) and thermal conductivity ensure low-loss current transmission and efficient heat dissipation.
Selection Recommendations for Silver Contact And Copper Stamping Riveted Parts
1. Electrical Parameters
Rated Current/Voltage: Determines contact size and minimum silver layer thickness.
Load Type: AC/DC, resistive/inductive load. AgSnO₂ contacts are preferred for DC or inductive loads.
Expected Electrical Life: The required number of operation cycles directly affects the selection of silver contact thickness.
2. Mechanical & Thermal Parameters
Installation Method and Space: Determines the shape, size, and terminal type (blade, solder pad, screw hole) of the copper base.
Ambient Temperature and Heat Dissipation: For high-temperature environments, a design with better thermal conductivity is required, and temperature rise should be evaluated for Copper Stamping With Riveted Silver Contacts.
Core Advantages of Copper Stamping With Riveted Silver Contacts
Superior Current Carrying and Heat Dissipation Capabilities
The copper base serves as a highly efficient current channel and heat sink, with a thermal conductivity (approximately 400 W/m·K) far exceeding that of silver alloys. This allows for rapid dissipation of Joule heat and arc heat from the contacts, enabling higher operating currents or longer lifespans.
Enhanced Mechanical and Thermal Reliability
The cold riveting process for Silver Contact And Copper Stamping Riveted Parts eliminates the heat-affected zone, avoiding material degradation and thermal stress that can occur with welding. The riveted joints can withstand long-term vibration and thermal cycling, exhibiting excellent fatigue resistance and high connection reliability.
Design Flexibility and Functional Integration
The copper base can be precision-stamped into complex three-dimensional shapes, integrating mounting holes, snap-fit mechanisms, terminals, and other functional structures for plug-and-play functionality, simplifying customer assembly.
contact us
Does your project require a Copper Contact Terminals solution that combines reliable electrical performance with cost-effectiveness? Our engineering team provides full-process technical support, from material selection and structural design to sample verification. Submit your application parameters to receive a customized solution.
Hot Tags: Copper Contact Terminals, Riveted Copper Terminals, T2 Copper Stamping, Silver Alloy Contact, Relay Contact Terminal, Low Voltage Switch Terminal, Copper Terminal Assembly, OEM Copper Contact, Custom Electrical Terminals, Energy Storage Contact Terminal, Electrical Stamping Contact Components, Brass Stamping Silver Contact Riveted, Silver Contacts For PV Power Relay Riveting Terminals, Armature Beryllium Copper Riveting Assembly, EV Charger Riveted Contact Elements, Copper Sheet Stamping For EV Relay
