Coaxial Connector selection primarily depends on the user's application, specification requirements, and the trade-off between cost and performance ratio.
First, consider material selection. The connector body ranges from low-cost zinc alloy and standard brass to stainless steel, which satisfies high-durability demands in extreme environments. For Plug Pin are typically made of brass, while Jack Pin generally utilize beryllium copper—though lower-cost phosphor bronze can serve as an alternative. For the dielectric insulator, PTFE / Teflon is the standard choice, but it can be replaced by more economical materials such as Delrin, PE, or PP.
In terms of manufacturing, CNC lathes represent the baseline equipment for current production. However, transforming a product design into precise CNC programming for each individual component, combined with final dimensional matching, remains the indispensable core requirement for meeting strict specifications.
Second, plating selection is critical. In the industry, plating is often the most significant factor affecting the supply price. Common plating options include Gold, Nickel, and Tri-metal / white bronze / Sucoflex. Ultimately, however, it is the plating thickness that dictates the final cost of the coaxial connector.
Q. We are developing a new project. How should we choose the right coaxial connector?
Ans: There is no absolute standard for choosing a coaxial connector; it mainly depends on your specific application and specifications. The core idea is to achieve the best balance (cost-effectiveness) between cost and performance.
Q. Regarding material selection, what are the key considerations for the connector body and pins?
Ans: Materials directly determine durability and cost. For the connector body, zinc alloy is a low-cost option, copper is a universal standard choice, while stainless steel is used to meet high durability requirements in extreme environments. For the contacts, the standard choice for plug pins is usually brass. Socket pins typically use beryllium copper because of its excellent elasticity and conductivity; however, if you need to reduce costs, you can also use the lower-cost phosphor bronze as an alternative.
Q. How do we choose the right insulation material?
Ans: Polytetrafluoroethylene (PTFE, commonly known as Teflon) is the most widely used and stable standard material in the industry. However, if you face strict cost control pressures and signal requirements allow, you can consider using more economical materials such as Delrin, PE, or PP.
Q. Besides materials, does the manufacturing process affect performance specifications?
Ans: Absolutely, and crucially. Nowadays, using CNC lathes is just a basic equipment requirement. What truly creates the technological gap is how engineers translate product designs into precise CNC programming for each component and ultimately achieve dimensional matching. This is key to meeting stringent specifications.
Q. I understand that electroplating is also a highly specialized process. Does it significantly impact price?
Ans: Electroplating is often the most critical factor affecting industry supply prices. Common electroplating materials include gold, nickel and copper-tin-zinc alloys, cupronickel, and Sucoflex. However, remember that materials are just the basics; plating thickness is the fundamental indicator that determines the final price.