DDK is a high-performance connector brand under Fujikura, known for its durability and excellent environmental resistance. Its products cover round multi-pin connectors, coaxial connectors, and are widely used in communication, power, industrial automation, and other fields.

The proportion of raw materials in the manufacturing costIndustry observation data shows that the raw material cost of connectors usually accounts for one-third to one-half of the manufacturing cost.
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Among them, copper/copper alloys and thermoplastic plastics are the materials with the largest usage (accounting for about 75% of the total material volume), followed by gold, steel, and others.
Under the dual pressure of the pandemic, geopolitical tensions, and tight supply chains, the price fluctuations of these materials have intensified significantly, directly pushing up the manufacturing costs of connectors.

Material composition of DDK/Fujikura connectorTaking the typical DMS series circular connector as an example, the connector shell is often made of aluminum alloy, with the surface possibly treated with black zinc or nickel electroplating; the contact material is usually copper alloy, with silver or gold coating on the surface to enhance conductivity and corrosion resistance. Although these high-quality materials are costly, they significantly improve the durability, electrical conductivity, and environmental adaptability of the connector, which is an important support for its high reliability.

Analysis of the Impact of Domestic Substitution Material Selection on Cost
During the domestic substitution process, in order to compress costs, it is usually considered to replace aluminum shells with plastic, adjust the type of coating, or reduce the use of metal; however, this will weaken the key indicators of the connector's mechanical performance, environmental tolerance, and electrical stability. It is necessary to fine-tune the balance between "cost and performance."
Four, suggestions and prospectsMaterial selection based on demand orientation: Different material combinations are recommended for different application scenarios (such as industrial, high-frequency, and outdoor environments), and a "one-size-fits-all" approach should not be adopted.
●Layered cost strategy: High-end applications match aluminum alloy + silver/gold contact points, for ordinary consumer applications, consider cost-effective plastic shell and simplified plating scheme.
Local material advantages: For domestic substitution, domestic aluminum alloys, plastics, copper alloys and other raw materials can be prioritized for procurement and processes can be optimized to reduce procurement costs and supply risks.
●Balance reliability: While controlling costs, it is necessary to ensure that the critical performance of the connector is not significantly affected, such as conductivity, lifespan, and corrosion resistance.

Domestic connectors must win in the fierce market competition, and material cost control is crucial. However, "cheap" cannot sacrifice "reliability." Rational allocation of materials and processes, and the adoption of a layered strategy, can only ensure the quality advantage while saving costs, and achieve sustainable domestic substitution.
If you are interested in the domestic substitute products for DDK/Fujikura brand connectors, or have procurement needs, or have production or sales channels for this brand of connector domestic substitutes, and wish to engage in in-depth cooperation or communication, please contact via the following contact information:
Manager Zhang (18665383950, same WeChat number)Look forward to joining hands with more industry partners.