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Help CenterR4875G1 Communication Power Connector High-Current Blind-Mate Connector for EV Power Module Modular Power Connector for EV Charging
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Board-to-Board Power Connector for EV Charging Module
High-Current Blind-Mate Connector for EV Power Module
Drawer-Type Power Module Connector
Modular Power Connector for EV Charging
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Gold finger connectors (usually referring to gold-plated connectors on the edges of printed circuit boards) have the following * * * characteristics:
Excellent conductivity:
Gold itself is a conductor of electricity. The gold plating layer provides a very low resistance path, ensuring efficient and low loss transmission of signals and power. This is crucial for the transmission of high-speed digital signals and high-frequency analog signals.
***Anti oxidation and corrosion resistance:
Gold hardly reacts with common environmental pollutants such as oxygen and sulfides at room temperature and pressure. This layer of gold protects the underlying base metal (usually copper) from oxidation or corrosion, ensuring long-term reliable electrical contact even in exposed environments. This is one of its most core advantages.
Good wear resistance:
Although pure gold is relatively soft, gold fingers used for connectors are usually plated with hard gold (such as nickel cobalt alloy gold). This process improves the hardness and wear resistance of the gold layer, allowing it to withstand repeated connector insertion and removal operations (such as installation/removal of memory modules, graphics cards, and expansion cards) without excessive wear or scratches, and still has good contact performance after multiple uses.
Low and stable contact resistance:
Thanks to the excellent conductivity and oxidation resistance of gold, gold finger connectors can form and maintain very low contact resistance after insertion and removal. The resistance value is stable and will not increase due to an increase in the oxide layer, reducing signal attenuation, voltage drop, and heating issues.
***Weldability (for certain types):
Although gold fingers are mainly used for crimping contacts, gold itself also has good solderability. In some applications that require welding (although not typically used for edge connectors themselves), the gold layer can provide a reliable welding surface.
Good pluggable performance:
The smooth and hard gold-plated surface combined with a reasonable connector design (such as guide angles) makes the insertion and removal process relatively smooth, with moderate friction, ensuring both stable connection and easy operation.
Design flexibility:
Golden Fingers can be directly designed and manufactured at the edge of PCB boards, with length, width, number of contacts, and arrangement (single-sided or double-sided) highly customized according to specific interface standards (such as PCIe, DIMM, AGP, etc.) and application requirements, achieving compact and efficient design.
In summary, the core advantage of the gold finger connector lies in its ability to achieve through gold plating:
High reliability: Long term stable contact, not easily degraded by environment or use.
High performance: low resistance, low loss transmission of signals and power, especially suitable for high-speed and high-frequency applications.
High durability: Wear resistant, suitable for applications that require frequent plugging and unplugging.
Applicable to: Huawei Communication Power Module R4875G1 Huawei Communication Power Module R4850N Huawei Communication Power Module R4850G2 Huawei Communication Power Module R4830N2 Huawei Communication Power Rectification Module to 48VDC Huawei R48100G1 Huawei Communication Power Module R4815G1
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